Answer:
The main role of chloroplast is to conduct photosynthesis
Explanation:
Chloroplasts are specialised organelles characterised by their high concentration of chlorophyll. They convert light energy into chemical energy by photosynthesis.
Chloroplast carry out a number of other functions including fatty acid synthesis, some amino acid synthesis and the immune response in plants.
Chloroplasts along with the nucleus, cell membrane, and endoplasmic reticulum participate in the plant immune response.
They make all of the cell's purine and pyrimdines.
They also convert nitrite into ammonia, which supplies the plant with nitrogen.
Chloroplasts are highly dynamic, they circulate and are moved around within plant cells and occasionally pinch into two to reproduce.
Answer: Chloroplast is known as coloured pigments. They are the ones
that give colours to flowers, fruits and leaves. Chlorophyll is
present in the leaves. expand it a bit more mark me as brainlist ig
what prevents coral reefs from surviving below the euphotic zone? group of answer choices high water density high pressure inadequate sunlight saline water damage from storms
Inadequate sunlight prevents coral reefs from surviving below the euphotic zone.
The majority of coral reefs are found nearby in shallow water. Due of this, they are particularly susceptible to the negative consequences of human activity, both directly via the exploitation of reef resources and indirectly through the effects of nearby human activities on land and in the coastal zone. The social, cultural, and economic fabric of local coastal communities is intricately intertwined with many of the human activities that harm coral reefs.
Numerous local risks to coral reefs exist, such as:
Physical harm or devastation caused by recreational overuse, coastal development, dredging, quarrying, harmful fishing methods and equipment, boat anchors and groundings, etc (touching or removing corals).
Land-based pollution that makes its way into coastal waterways There are several pollution kinds and sources from land-based activities.
1.sedimentation
2. Nutrients
3. pathogen
4. Toxic substances
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Why Pumule is also called the future shoot
Answer:
The plumule is the part of a seed embryo that develops into shoot, bearing the first true leaves of a plant. The radicle is the first part of a seedling (a growing plant embryo) to emerge from the seed during the process of germination.
A deficiency in what trace mineral is associated with loss of taste, poor wound healing, and cessation of spermatogenesis?.
Zinc deficiency is linked to taste loss, poor wound healing, and the cessation of spermatogenesis.
What are the signs and symptoms of a zinc deficiency?Zinc deficiency occurs when the body does not have enough zinc. During pregnancy, childhood, and adolescence, zinc is essential for the immune system, wound healing, and proper growth and development. Zinc deficiency can cause initial skin changes that resemble eczema.The skin frequently develops cracks and a glazed appearance, particularly around the lips, diaper area, and hands. Lotions, steroid creams, and moisturizers have no effect on the rash.Some people cannot get enough zinc through diet alone. Because protein aids in zinc absorption, vegetarians and vegans, as well as those on long-term restricted diets, may be more vulnerable. Children on restricted diets and infants breastfed exclusively for more than six months are at risk of zinc deficiency.To learn more about zinc deficiency, refer to:
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Communication scheme
Explain the following scheme, mentioning the type of communication, cells and molecules involved, type of ligand, type of receptors, and its secretory pathway
The given image is of the synapse. Transmission of impulse from the presynaptic neuron to postsynaptic neuron.
What are receptors?Although there are several varieties of receptors and ligands, they all come in closely matched pairs, with a receptor only being able to detect one (or a small number of) specific ligands and a ligand binding to just one (or a small number of) target receptors.
When a ligand attaches to a receptor, the receptor's shape or activity is changed, allowing the receptor to transmit a signal or cause a change in the cell directly.
Although there are many different kinds of receptors, they can be categorized into two groups: cell surface receptors, which are found in the plasma membrane, and intracellular receptors, which are found inside the cell (in the cytoplasm or nucleus).
The given image is of the synapse. Transmission of impulse from the presynaptic neuron to postsynaptic neuron.
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What is a flattened sac that reduces friction between adjacent structures during joint activity called?.
Bursae are small fluid-filled sacs lined by a synovial membrane that reduces friction between adjacent structures during joint activity.
What is synovial fluid?It is also called a joint fluid which is thick and located in between the joints. This fluid at the end of the bone reduces friction on the movement of joints.
Regular exercise, a healthy diet, and nutritional supplements increase synovial fluid and reduce joint pain and inflammation.
Bursae provide a cushion between bones and tendons around a joint. It reduces tension and wear and tear at points of friction and allows the free movement of joints. It reduces friction by separating the adjacent structures, preventing them from rubbing against each other.
It is present in large joints such as in the shoulders (ball and socket joint), Elbows , Hips, and Knees.
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State one negative environmental impact a greywacke quarry could have on the area where it is located at for paving is made.
Answer:
A dense fog warning
Explanation:
Please don't blame me if it is wrong. I'm just trying.
if extinctions are generally a result of changes in the environment that a species is unable to adapt to, what do you think this indicates about the 5 previous mass extinctions and the 6th one occurring now? how long does it typically take for biodiversity to "recover" after a mass extinction?
Answer:
This indicates that extinctions can be both naturally-caused, such as by collapse in food chains due to a large meteorite striking the Earth, and human-caused, including habitat destruction, overharvesting, introductions of invasive species, climate change, and emerging diseases. Because much of the current environmental change caused by human activities is dramatic and sudden, many species may not be able to move or put in the time to avoid extinction. And, the recovery of biodiversity from previous mass extinctions took about 10 million years. The recovery from the present mass exitinction could take just as long-- 500,000 human generations.
What are the possible effects of contaminated water on the health of an individual or community? Explain your answer in terms of what causes the contamination, the types of infectious agents involved in the related diseases, and how these diseases can spread. (5 points)
Following are the possible effects of Water contamination
Germs and contaminants can contaminate drinking water at the source or in the distribution system after the water has been treated. Some of the sources through which dangerous bacteria and chemicals could infiltrate rivers include fertilizers, pesticides, or other chemicals that have been used to treat land close to waterways.
Dangerous microorganisms that may be present in contaminated water include the following:
GiardiaSalmonellaCrypstosporidiumEcoliLegionellaThe spread of diseases like cholera, diarrhea, dysentery, hepatitis A, typhoid, and polio is only one of the problems that contaminated water and poor sanitation may cause. People face avoidable health risks when water and sanitation facilities are insufficient, poorly managed, or unavailable.
Drinking contaminated water can expose one to bacterial, viral, and protozoal illnesses.
Many of these are pathogens, which after consumption can swiftly send a person to the hospital.
The greatest hazard to underdeveloped countries comes from microbial infection. Both a general lack of appropriate water treatment facilities and a constrained supply of clean water contribute to this. Giardia and Cryptosporidium in particular, constitute a menace to contemporary culture.
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Sha'Carri Richardson just ran her fastest race ever and won another gold medal. Knowing what you have learned about the cardiovascular, digestive and endocrine systems, how has her endocrine system contributed to his success? How does this activity support homeostasis?
The cardiovascular, digestive and endocrine systems, has the system of the glands that has been that secrete the hormones that has been directly just into the main bloodstream.
What is circulatory system?A circulatory system has been defined as the system in the body that has been consists of the heart, blood vessels, arteries, veins and blood that all combined together to supply blood to all the parts of the body and takes up waste material from it.
Circulatory system have been four major components and these are heart, veins, arteries, and blood. These are the four components that combined and form cardiovascular system.
Therefore, The cardiovascular, digestive and endocrine systems, has the system of the glands that has been that secrete the hormones that has been directly just into the main bloodstream.
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What is the term for innate patterns of behavior that are biologically determined rather than learned?.
The term for innate patterns of behavior that are biologically determined rather than learned is instinct.
The term "instinct" derives from the Latin word "instincts," which means "to lead." In other words, instinct is a process that has evolved to guide animals toward success in their environment.
For example, a bird's instinct tells it when to fly away from predators or when to land on branches and sing its mating song.
Instincts are also known as "animal instincts" or "basic drives," and they're often described as genetically inherited patterns of behavior that have been shaped by evolution over many generations.
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A certain plant species, found only in one particular stream valley in the
world, has a very shallow root system. An earthquake causes the stream to
change its course so that the valley in which the plant species lives
becomes very dry. As a result, the species dies out completely. The effect
of this change on this plant species is known as
The effect of this change on this plant species is known as Extinction
What is Extinction ?
Extinction is the phrase used to describe a known species for which no known individuals are still alive. Some extinct species can only be identified by their fossilized remains. Others used to be known to humans, but they are no longer. Others were pushed to extinction as a direct result of human abuse. Although a species that has gone extinct or undergone extinction no longer contributes to the evolution of creatures, it can nevertheless be used to better understand the relationships between animals that are still alive today.
The effect of this change on this plant species is known as Extinction
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Explain the relationship between coral and algae, and how a problem with algae photosynthesis caused coral bleaching in the Great Barrier Reef. This has something to do with durion
The sharp increase in water temperature due to global warming drives zooxanthellae death. Corals lose their symbiotic algae and suffer bleaching due to the lack of photosynthetic organisms that provide them with color.
What is the algae-coral relationship?Corals are naturally translucid or white organisms. However, they look brightly colored because they host symbionts with colorful photosynthetic pigments.
Corals can host different organisms that live on and among them, giving place to amazing ecosystems.
The photosynthetic unicellular microalgae zooxanthellae are symbionts to the coral.
Corals provide shelter and protection to the algae, and nutrients like carbon, phosphorous, and nitrogen.Algae provide photosynthetic products like oxygen and sugars, and also give color to the corals.This symbiotic relationship allows corals to grow in different environments that are poor in nitrogen or other nutrients, such as tropical clear waters.
When changes in radiation, temperature, or salinity in water occur, corals react to these changes losing these algae and becoming translucid again.
Global warming increases water temperature significantly, which makes the bond between algae and coral break because of algae death. The lack of algae means an increase in coral bleaching since there are no photosynthetic organisms that provide them with color. Besides, the absence of algae means no availability of photosynthetic products.
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Which term describes a mutation where a chromosome breaks, and its genetic material is reinserted in a different orientation?.
Chromosomal Inversions: An inversion occurs when a chromosome breaks in two places; the resulting piece of DNA is reversed and re-inserted into the chromosome. Genetic material may or may not be lost as a result of chromosome breaks.
Inversion happens when a part of the chromosome breaks off, turn around, and becomes reaffixed. So, the order of the genes becomes reversed from what it was. While most cases of inversions go unnoticed and cause no gains or losses of DNA, they can lead to infertility or phenotypic reverberation.
An inversion can disrupt a gene, either by truncating the coding region of the gene or by placing its regulatory region far from the gene itself.
There are two kinds of Inversion mutation:
Pericentric Inversions- It happens when the centromere is included in the break. In other words, the break happens in the centre of the chromosome.
Paracentric Inversions- These occur when a chromosome breaks in one of its arms. In other words, the centromere is not incorporated.
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Adenosine triphosphate (ATP) is considered to be the energy currency of life. It is the high-energy molecule that stores the energy we need to do just about everything we do. ATP can power needed reactions by losing one of its phosphorous groups to form ADP, but you can use food energy in the mitochondria to convert the ADP back to ATP so that the energy is again available to do needed work. Complete the activity to order the general steps of the ATP-ADP cycle in aerobic cellular respiration.
Place these in order:
Krebs Cycle (Citric acid Cycle)
Glycolysis
ATP Hydrolysis
Transition Reaction
Electron Transport Chain
Answer:
●glycolysis
●the Krebs cycle
● electron transport chain.
The transition reaction does not take place in the stages of aerobic cellular respiration.
uhhh...help im dum
tyyyyyy
Compare and contrast semidiurnal tides, mixed semidiurnal tides and diurnal tides.
It is called a semi-daily or semidiurnal tidal pattern when the heights of the two highs and lows are roughly equal whereas a mixed semidiurnal tidal pattern is one in which the heights of the high and low tides vary. It is called a diurnal tide when areas have only one high and one low tide each day.
Since "diurnal" refers to a daily occurrence, a tide is said to be diurnal if there is just one whole tidal cycle every day. In the Gulf of Mexico, on Alaska's west coast, and in some regions of Southeast Asia, diurnal tides are typical.
Semidiurnal refers to "half of a day," and as one tidal cycle lasts for half a day, there are two full cycles per day. The majority of Europe, the west coast of Africa, the east coast of North America, and Australia all experience semi-daily tides.
The differences in height in mixed semidiurnal tides may be the result of amphidromic circulation, the angle of the moon, or any of the other variables. They are found along the Pacific coast of North America.
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Which conclusion can be drawn based on the discovery of thick-shelled clam fossils in an area?
Responses
The area was once at the bottom of a deep ocean.
The area was once at much higher elevations.
The area was once part of a shallow or coastal sea.
The area was once cut through with many rivers.
The conclusion which an be drawn based on the discovery of thick-shelled clam fossils in an area is that the area was once at the bottom of a deep ocean and is denoted as option A.
What is a Fossil?
This is a term which is referred to as the remains of plants and animals which have been preserved in the earth crust. Fossil are used for various reasons such as determining the age and evolutionary history of organisms .
On the other hand, a clam is a mollusc which has no gut or functional digestive system and it uses energy in hydrogen sulfide to replace sunlight via bacteria. Giant clams are mostly found in the deep parts or areas of oceans.
This therefore means that the area where the fossil was found has ties with the deep parts of the ocean and is therefore the reason why option A was chosen.
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Which vitamin plays a major role in maintaining the health of the epithelial cells?.
Answer:
Vitamin A plays a major role in maintaining the health of the epithelial cells
Explanation:
Vitamin A is essential for maintaining the health of epithelial cells throughout the body.
In this food web, which term best describes the pinfish? *
O Primary Consumer
O Producer
O Secondary Consumer
O Tertiary Consumer
Answer:
can you show us the food web it won't work without it
Please Please answer the question in the photo! (will mark Brainliest)
Answer:
Low plasma sodium occurs when you have an abnormally low amount of sodium in your blood or when you have too much water in your blood, so I would say the answer is the 2nd one.
Explanation:
When animals and plants die, decomposers return the carbon locked in their bodies back to the atmosphere via ________
When animals and plants die, decomposers return the carbon locked in their bodies back to the atmosphere via respiration.
What is meant by Decomposers?Decomposers may be characterized as a type of organism that significantly breaks down dead organic material. These organisms are essential for maintaining the balance on the earth's surface. These micro-organisms digest things that are dead or decaying and turn the dead plants and animals into humus.
Animals that eat plants digest the sugar molecules to get energy for their bodies. Respiration, excretion, and decomposition release the carbon back into the atmosphere or soil, continuing the cycle. The ocean plays a critical role in carbon storage, as it holds about 50 times more carbon than the atmosphere.
Therefore, when animals and plants die, decomposers return the carbon locked in their bodies back to the atmosphere via respiration.
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identify the greatest cause(s) of human mortality throughout time. check all that apply.question 23 options:a) trypanosoma b) plasmodium) neisseria gonorrhoeae d) mycobacterium e) anopheles) smallpox) treponema pallidum) yersinia pestisi) naegleria
Correct answer is option d. mycobacterium
What is mycobacterium?
In immunocompromised hosts, mycobacterial infection is a common cause of intestinal illness. Mycobacterium tuberculosis or Mycobacterium avium complex (MAC), an unusual mycobacterium similar to the type that causes cervical adenitis, may be secondary to this (scrofula). Typically, gut mucosa is directly penetrated by organisms that have been swallowed. MAC infection affects the luminal gastrointestinal tract, and significant thickening of the proximal small intestine is frequently observed (Fig. 50.26). Clinical symptoms of MAC patients include anorexia, diarrhoea, fever, and gradual wasting.
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How would we be able to eat food upside down? What muscle/organ is responsible for this
enrichment media are media that have been supplemented with highly nutritious materials. for example, in blood agar, the blood is an enrichment ingredient which can be used by some bacteria to demonstrate their hemolytic capabilities. lysis of the red blood cells with complete destruction and use of hemoglobin by the microorganism is called:
Lysis of the purple blood cells with complete destruction and use of hemoglobin by using the microorganism is referred to as Hemolysis or hemolysis.
A pink protein is liable for transporting oxygen in the blood of vertebrates. Its molecule accommodates four subunits, each containing an iron atom certain to a heme group.
Your bone marrow desires iron to make hemoglobin, the part of the pink blood mobile that takes oxygen from your organs. Iron deficiency anemia may be a result of A weight loss plan without sufficient iron, particularly in infants, children, young adults, vegans, and vegetarians. positive capsules, ingredients, and caffeinated drinks.
Excessive hemoglobin tiers can result in dizziness, fatigue, easy bruising, and other signs and symptoms. depending on the underlying purpose of high hemoglobin, your healthcare company may additionally advise a remedy to eliminate excess red blood cells from your blood.
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much of the earth’s land area is covered by grasslands that are too dry to cultivate crops but capable of supporting grazing animals (bison, antelope, cattle, sheep, etc.) on a sustainable basis. humans are incapable of effectively digesting grass. on the dry grasslands, eating at what trophic level would produce the most food for humans?
Lower tropic level contain more energy as you move above the tropic level energy goes on decreasing .
Tropic level is the series of nutrition cycle or food chain in a ecosystem .organism are generally classified by their feeding behaviors'. first an the lowest of all tropic level is producer those are generally green plants . Trophic levels can be represented by numbers or by the name of that trophic level e.g. plants and algae are in trophic level 1, otherwise known as producers.
Generally, there are a maximum of four trophic levels in an ecosystem. Many consumers feed at more than one trophic level. Humans are primary consumers when they eat plants and vegetables and secondary when they eat animals .
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the sensory , such as the ear and eye, are sensitive to external or internal stimuli. organs receptors transduction adaptation mark this and returnsave and exit
The sensory organs, such as the ear and eye, are sensitive to external or internal stimuli.
Sense organs are specialized organs that aid in our ability to perceive our environment. They play a crucial role in how we live, and they give us the only ability to sense our surroundings. As a result of a specific physical phenomena, sense organs supply the necessary information for interpretation via numerous organs and a network of nerves. These senses control how we relate to and engage with the environment.
There are five sensory organs in humans:
Eyes
Ears
Nose
Tongue
Skin
The receptors in these five sense organs transmit information to the relevant areas of the nervous system via the sensory neurons. The receptors could be divided into two categories: the universal and unique receptors.
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respiratory alkalosis can be caused by a respiratory rate in excess of that which maintains normal plasma pco2 levels. what is a common cause of respiratory alkalosis? cluster breathing hypoventilation kussmaul breathing hyperventilation
Anxiety is the most frequent cause of respiratory alkalosis and hyperventilation. Other factors such as discomfort, low blood oxygen levels, fever are all the symptoms of respiratory alkalosis.
Respiratory alkalosis occurs when large quantities of carbon dioxide upset the blood's acid-base equilibrium, respiratory alkalosis results. People who experience erratic, fast breathing frequently experience it (hyperventilation). Treatment options include medicines to lower the risk of hyperventilation and more oxygen.
Your body works nonstop to keep the blood's acid-base (alkali) balance. When there is an imbalance between alkali and acid, alkalosis results. A change in breathing or metabolism can chemically alter the acid-base balance. This total process is known as Respiratory alkalosis.
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Does the graph indicate that the ball decelerated? Explain your answer.
Answer:
yes bevause
Explanation:
There are multiple lines of evidence that provide support for common ancestry and evolution. Write 3-4 paragraphs describing at least three of them in detail. Provide at least one example for each line of evidence.
The examples of lines of evidence that provide support for common ancestry and evolution are:
fossil recordsuniversal genetic codons homology among organisms.The fossil records are the traces or remains of the ancient organisms. They provide a lot of information about the changes and evolutions among the fossils and the current organisms. Genetic codons are universal among all the living organisms even though they are morphologically and functionally very different from each other.
Homology is the occurrence of similar body structures among two distinct organisms. This demonstrates how the organisms had common ancestors and then involved into two different species.
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Answer:
There are multiple lines of evidence that provide support for common ancestry and evolution; this would be homologous features of anatomy and embryology and fossil records.
In comparative anatomy, there are many similarities between species because all life is related. Homology is similarities seen because of the ancestry of features or genes in an organism. Similarities can show descent from common ancestors and similarities can be seen in body structures, development, and DNA. Homologous structures are similar traits found in two different species that are the result of having a common ancestor. These structures are similar but may have different functions. An example of this might be the homologous structures in the limbs of humans, cats, whales, and birds. And then there are analogous structures, which similarly is that the structure of different species are similar because the trait is advantageous, not because they are related. An example of this is sharks and dolphins having similar fins. Along with anatomy is Embryology. Different species can have similar embryos because they come from a common ancestor. They may start with the same developmental plan but change drastically as they grow up. An example of this is seen in the early stages of development between fish and chicken embryos.
Next up, the fossil record provides evidence that supports common ancestry and evolution. The fossil record provides us with visual evidence for evolution. The fossil record directly allows us to pinpoint if there are any similar structures amongst organisms and see if there are any vestigial structures from ancestors that remain in organisms that still roam today. The fossil record depicts evolutionary change over the past four billion years, which can be seen through transitional forms, increasing complexity of life, and geographical distribution. Transitional forms are fossils that show intermediate states between an ancestral species and its evolutionary descendants. Increasing complexity is seen as life on earth becomes more complex. That and geographic distribution which has been studied closely and found that the continents have moved over time and that the fossil record reflects this movement. Fossils of different animals can be found on different continents around the world due to continental drift.
Explanation:
During the 1973 eruptions on the island of heimaey, residents used blank______ to build barriers that diverted lava flows away from their economically important fishing port.
During the 1973 eruptions on the island of heimaey, residents used blank Pyroclastic to build barriers that diverted lava flows away from their economically important fishing port.
What are Pyroclastic materials?
Pyroclastic material explodes from an explosive volcanic eruption; they are mostly emitted in fragments, resulting in ash fall deposits. Another name for pyroclastic material is cloud of ash. The flow usually moves very fast and is high in temprature. This is as a result of buoyancy provided by the vapors. Pyroclastic flows can extend miles from the volcano, and devastate life and property within limit.
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