Answer:
Explanation:
1 Long term exposure to harmful genotoxic chemicals or ionizing radiation can cause changes in the base sequence of DNA.Chemicals might induce DNA mutations, such as polycyclic hydrocarbons (fumes found in oil stations, or smoke from a tobacco cigarette), intercalating agents such as Ethidium Bromide (carcinogen), but also radiations such as UV-radiation (C and T bases are most vulnerable and would bind to identical bases unstead of their
2 Genetic changes that are described as de novo (new) mutations can be either hereditary or somatic. In some cases, the mutation occurs in a person’s egg or sperm cell but is not present in any of the person’s other cells. In other cases, the mutation occurs in the fertilized egg shortly after the egg and sperm cells unite. (It is often impossible to tell exactly when a de novo mutation happened.) As the fertilized egg divides, each resulting cell in the growing embryo will have the mutation. De novo mutations may explain genetic disorders in which an affected child has a mutation in every cell in the body but the parents do not, and there is no family history of the disorder.
Somatic mutations that happen in a single cell early in embryonic development can lead to a situation called mosaicism. These genetic changes are not present in a parent’s egg or sperm cells, or in the fertilized egg, but happen a bit later when the embryo includes several cells. As all the cells divide during growth and development, cells that arise from the cell with the altered gene will have the mutation, while other cells will not. Depending on the mutation and how many cells are affected, mosaicism may or may not cause health problems.
average sized stars like the sun are too small to fuse iron yet the sun's mass is about 0.1% iron so where did that iron come from
Answer:
Interstellar clouds.
Explanation: From which the Sun formed had plenty of time to incorporate the iron and other heavy elements from supernovae into the infant Sun and its planetary system.
If one strand of the DNA molecule had the sequence "ATTGCTC," what will be the sequence of the complimentary strand across from it?
why is fire matter and why is ice matter ?
Answer:
becouse ice is a solid and fire predouses heat
Explanation:
Answer:
Matter is defined as anything that has mass. Since ice and fire both have mass, they are considered matter. It's easier to see in ice. Ice obviously takes up space and has mass. Fire is a type of plasma. It is oxygen, nitrogen, carbon, and a few other gasses that are extremely hot. They also take up space, have mass, and are hence, matter.
Blood has a lower concentration of hydrogen ions than cellular cytoplasm. What does that tell us about the pH?
Answer:Acids and bases In the human body, both blood and the cytosol (watery goo) inside of cells have pH values close to neutral. ... A base, in contrast, raises pH by providing hydroxide (OH −start superscript, minus, end superscript) or another ion or molecule that scoops up hydrogen ions and removes them from solution.
Explanation:
Why do sparkles come off of TY Beanie Boos?
How do you prevent this incident?
Answer:
put it on a shelf and keep it there and the sparkles wont come off <3
Explanation:
Answer:
The older they get the more sparkles they loose
Explanation:
Maybe keep them in a container or a box where it will delay them loosing saprkels. And dont wash them
What is the area of the triangle?
16
10
8
Answer:
10
Explanation:
Explain the importance of removing carbon dioxide from the body. No google answers. ASAP please
Answer:
Explanation:
The gas is not useful to the body so when you breathe out, all the gasses you breathed in gets released from the body.
Which of the following scenarios does NOT illustrate a danger bats can pose to miners?
A. Bats can swarm, causing miners to fall off equipment.
B. Bats can release feces that have mold spores, causing miners to contract respiratory diseases.
C. Bats can attack, causing miners to contract rabies.
D. Bats can communicate by echolocation, causing miners to lose their hearing.
Answer:
C. Bats can attack, causing miners to contract rabies.
Explanation:
Scenarios that does not illustrate a danger bats can pose to miners is bats can attack, causing miners to contract rabies.Thus, option C is correct.
What is food web?Food web has been defined as the natural way of the interconnection of the food chain that has been represented by the help of graphs and it has been shown that in the ecological community who eats whom. The food web has been also known as the consumer consuming system. The main advantage of the food web has the organism present on the top or the organisms who belongs to the higher trophic level can provided food or feed the organisms from lower trophic level or from other food chain.
The permanent food web has been increased due to the presence of large or complex food web. There are mainly three steps in the food web or food chain and they are producers, consumers, as well as decomposer. The producer belongs to the trophic level, the consumers belongs to the second and third trophic level, and the decomposers belongs to fourth and fifth trophic level.
Since there are more number of species they have more oppurtunity on which ones to eat because food webs with many species (biodiverse) are more stronger than those with few species.
Therefore, Scenarios that does not illustrate a danger bats can pose to miners is bats can attack, causing miners to contract rabies.Thus, option C is correct.
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can someone please help me with this
Answer:
Nitrogenous base
Explanation:
Phosphate and deoxyribose create the "backbone" of a DNA molecule.
Think of the molecule as a ladder.
These(deoxyribose and phosphate) are the sides of the latter.
The nitrogenous bases(A,G,C,T) are the rungs of the ladder.
As the arrow points to the "rung" of the ladder, that means it is a nitrogenous base.
HELP AND ILL PUT U IN BRAINLIEST
Answer:
By crossing plants with purple flowers, dominant, with plants with white flowers the offspring will be 100% purple because all the offspring will receive at least one dominant allele.
Explanation:
The crossing of two plants of pure line, one dominant and one recessive, for a trait —the color of the flowers— will produce a hybrid offspring which will express the dominant trait in its phenotype.
Parental generation:
Plant with purple flowers PP Plant with white flowers ppCross: PP X pp
Punnett Square :
Alleles P P
p Pp Pp
p Pp Pp
Offspring: 100% Plants whose phenotype is purple flowers and Pp genotype.
According to this, the descendants will be 100% plants with purple flowers, hybrids, since all the offspring received at least one dominant allele.
Which of the following microscopes contains multiple objective lenses, creates a 2-dimensional image of the specimen being viewed, has a light source located below the specimen, and can be used to view both living and non-living specimens?
a dissecting microscope
a compound microscope
a scanning electron microscope
a transmission electron microscope
Answer:
I guess the answer is a scanning electron microscope
The microscope that contains multiple objective lenses, creates a 2-dimensional image of the specimen being viewed, has a light source located below the specimen, and can be used to view both living and non-living specimens is compound microscope. The correct option is B.
What is a compound microscope?Compound microscopes are a type of light microscope that uses a light beam to perceive samples.
The compound microscope does indeed have two ocular lenses as well as numerous objective lenses with varying magnification levels.
Based on the definition in this question, a compound microscope produces a two-dimensional image of the specimen under examination.
A compound microscope is customarily used to view samples at high magnification, which is accomplished through the combined effect of two sets of lenses: the ocular lens and the objective lenses.
Thus, the correct option is B.
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I have a Lab work who will do it for me I'll give 100 points
promise
Answer:
Okay, what is it?
Explanation:
Se colocó un protozoario en una solución salina,la cuál resultó ser hipertonica para él;sin embargo, para un alga es isotónica ¿Que le sucede a cada uno de estos organismos?
Answer:
El protozoo se encogerá mientras que las algas no se hincharán ni encogerán.
Explicación:
El protozoo se encogerá debido a la condición hipertónica del medio porque todo el líquido presente en el cuerpo sale al exterior debido a una mayor concentración de solutos fuera de la célula, mientras que por otro lado, para un alga es isotónico, lo que significa que no hay hinchazón. o se produce un encogimiento en el cuerpo de las algas debido a la solución salina del medio.
A student is observing a cell on a microscope slide and notices cell walls and membrane bound organelles. The student concludes that the cells. A.)must be animal cells B.) must me plant cells C.) could be plant animal or bacteria cells.
Answer:
B.) plant cells
Explanation:
Only plant cells have cell walls as well as membrane-bound organelles. Animal cells only have membrane-bound organelles while bacterial cells don't have membrane-bound organelles which makes the best answer B.
what element has 7 protons and 5 neutrons?
Photosynthesis is related to cellular respiration and why?
Answer:
Explanation:
Photosynthesis makes the glucose that is used in cellular respiration to make ATP. While photosynthesis requires carbon dioxide and releases oxygen, cellular respiration requires oxygen and releases carbon dioxide. It is the released oxygen that is used by us and most other organisms for cellular respiration. :)
is golgi apparatus a plant or animal cell?
Answer:
it's actually found in both plant and animal cells.
Explanation:
A major function of the golgi apparatus is the modifying, sorting and packaging of proteins for secretion. It is also involved in the transport of lipids around the cell, and the creation of lysosomes.
hope it helps hun :)
The Golgi apparatus is found in both plant and animal cell as it is one of membrane-bound organelle in all eukaryotes.
A Golgi body or Golgi apparatus is one of cell organelle that process and package proteins and lipid molecules, especially proteins exported from the cell to various destinations such as lysosomes, or secretion. In addition, the plasma membrane and
glycolipids and sphingomyelin are synthesized within the Golgi.found in eukaryotes onlyis a factory and transport vehicle for different molecules.found in all plant and animal cellspresent near the endoplasmic reticulum.Thus, the correct answer is - present in both plant and animal cell as it is one of membrane-bound organelle in all eukaryotes.
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In the middle of the night you are awakened by hunger pains. You proceed to get up and go to the kitchen to have a couple of cookies and a glass of milk. Satisfied you go back to bed content. Explain in detail what organs, and organ systems are involved in completing that task. Describe the physical and chemical digestive processes as well as the delivery of the nutrients to the cells all around the body. Be sure to include how the systems interact.
help plz lol
Answer:
Overview of answer:
-First, your digestive system is involved in the hunger pains you feel because your stomach is empty and your body needs more energy.
(-Since you are alive and breathing, your respiratory system is also involved.)
-Getting up involved the muscular and skeletal systems, which allow movement and bodily structure, and the nervous system, which commands the muscles and bones to move.
-Eating and drinking involves the digestive system again as saliva and enzymes break down the food travelling from the mouth to the stomach.
Explanation:
I think that is all involved but there may be more depending on how you look at it. Hope this helps! :)
Digestive system is involved in the hunger pains you feel because your stomach is empty and your body needs more energy.
What are the functions of digestive system?The human digestive system consists of the gastrointestinal tract plus the accessory organs of digestion. Digestion involves the breakdown of food into smaller and smaller components.
he digestive system breaks down food into nutrients such as carbohydrates, fats and proteins.
They can then be absorbed into the bloodstream so the body can use them for energy, growth and repair. Unused materials are discarded as faeces.
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which set of characteristics below describes a carbohydrate?
Answer:
supplies energy and fiber
Explanation:
Carbohydrates are what provides the body with fast, immediate energy, vs fats which are long term energy.
Carbohydrates are the source of energy thus the molecules that are used here are the energy molecules in the process of food metabolism as well.
What is the best source of carbohydrayte ?It is the whole grains, fruits and vegetables.
Along with the proteins and fats there are carbohydrates that are one of these three main nutrients that are in the foods and drinks. Our body is breaking down into the carbohydrates into the glucose. Glucose or blood sugar is main source of the energy for our body's cells, tissues and organs.
The primary role of the carbohydrates is to supply out the energy to the all of the cells in body. Many cells are preferred as the glucose that are a source of the energy where the other compounds as the fatty acids. Certain cells such as red blood cells are only there to produce out cellular energy out from glucose.
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What is a sentence connecting genes, genetics, genomes, proteins, and trait
Answer:Combination TTT
Explanation:
How do airplanes stay in the air?
Answer:A plane's engines are designed to move it forward at high speed. That makes air flow rapidly over the wings, which throw the air down toward the ground, generating an upward force called lift that overcomes the plane's weight and holds it in the sky. ... The wings force the air downward and that pushes the plane upward.
Explanation:
A plane's engines are designed to move it forward at high speed. That makes air flow rapidly over the wings, which throw the air down toward the ground, generating an upward force called lift that overcomes the plane's weight and holds it in the sky. ... The wings force the air downward and that pushes the plane upward
A large number species on Earth become extinct during a short time period about 65 million years ago. Based on this pattern of extinction, which is the MOST likely cause
Answer and Explanation:
During the whole biota history, there occurred extinctions due to different reasons.
During the Cretaceous, which took place between 145-65 million years ago, there occurred a massive extinction that eliminated most of the species on the Earth. Many of the characteristic groups of this period were affected. Dinosaurs, Plesiosaurs, Ammonites, Tricodonts, Cycas, Gynkgos, Conifers, the recent angiosperms, birds, and mammals.
The extinction was caused by the volcanic eruptions, and the unusual fall of many different asteroids, which caused important changes on the Earth´s surface. The consequent climatic change was what ended affecting all the species directly. The extinction was gradual, although it occurred in a short geological lapse of time.
Whats the answer will give brainliest and explain you reasoning.
Answer:
Texbook because it's states the most information and I'd you find a random website on the internet the informations probably gonna be wrong and a crime novel isn't gonna have anything in it lol. Then a sales pamphlet ain't gonna be nothing but sales
Mark me as brainliest pls
Select the correct answer from each drop-down menu to describe why Jared is measuring the amount of
foam in each glass.
1st options are protein synthesis,photosynthesis,cell division,respiration
2nd options are yeast,oxygen,glucose,carbon dioxide
3rd options are protein synthesis,photosynthesis,cell division,respiration
Answer:
respiration, carbon dioxide, respiration
Explanation:
did anyone do this?
Question 2
Do you think the amount of foam in the glasses will differ? Write down your prediction.
The correct answers are
respirationcarbon dioxiderespirationWhat is the formation of foam?The formation of foam is a process when the small bubbles of the gas get trapped inside a solid or a liquid a form is made and gets made by the tapping of millions of small bubbles and can be seen in marshmallows. The process of foam formation is thus through dispersed medium and in general gas is present.
The foam is thus evidence that respiration, is taking place as carbon dioxide is a product of respiration.
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Which organelle would not be found in both prokaryotic and eukaryotic cells?
Explanation: Prokaryotic cells are simple cells that lack membrane-bound nuclei and complex organelles. Endoplasmic reticulum, microtubules, and the Golgi apparatus are unique to eukaryotic cells, and will not be found in prokaryote
some brightly colored rain forest frogs are very poisonous. their toxins can be so deadly that an amount equal to three grains of salt can kill a 150 pound human. Desert cacti have spines instead of leaves. one species has sharp has sharp spines three times longer than the body of cracti. These structural adaptations most likely help rain forest frogs and Desert catic to survive by aiding in which life function
A. reproduction
B. catching prey
C. conserving energy
D. avoiding predators
Why does water have "surface tension"?
Answer:
Hello!
Explanation:
Surface tension in water owes to the fact that water molecules attract one another, as each molecule forms a bond with the ones in its vicinity. ... This inward net force causes the molecules on the surface to contract and to resist being stretched or broken. Hope this helps!
Which statement about the genetic traits of humans is true?
O Visible traits depend on the dominant and recessive forms of genes from each parent.
O Recessive forms of genes are always visible.
Dominant forms of genes are always inherited from each parent
O Visible traits are the same for each member of a family.
Question 11
A hereditary trait is one that is genetically determined. Inherited traits are passed down from parent to child according to the rules of Mendelian genetics. Most traits are not strictly determined by genes, but rather are influenced by both genes and the environment....
Explanation:
The characters that offspring inherits from its parent is called genetic traits. It passes from parent to child in the form of a genome inside the cell nucleus.
The correct statement about the genetic traits of humans:
Option A. Visible traits depend on the dominant and recessive forms of genes from each parent.
This can be explained as:
Recessive traits are not visible in the presence of dominant traits and get masked.The dominant trait does not always get transferred from each parent. Even a single parent can pass a dominant allele.Visible traits are not the same and common for family members as crossing over and recombination occurs.Therefore, dominant and recessive allele from parents decides the phenotype.
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1. What is the density of a block with a mass of 36 g and a volume of 9 cm3?
A. 45 g/cm3
B.27 g/cm3
C.4 g/cm3
D. 0.25 g/cm3
Plsss help
Answer:its 45 g/cm power of 3
Explanation: density of a block with a mass of 36 g and a volume of 9 cm3? A. 45 g/cm3
Producers, consumers, and decomposers all participate in the carbon cycle during
their lifetimes. Identify and explain the process through which producers remove
carbon from the atmosphere. Identify and explain how producers, consumers, and
decomposers return carbon to the atmosphere.
Answer:
Carbon Cycle
Everything You'll Have Covered
What role do producers, consumers, and decomposers play in the carbon cycle?
~ Producers synthesize their food through photosynthesis using energy from sunlight and carbon dioxide from the air. Their respiration returns carbon dioxide to the atmosphere. Consumers use the food produced by producers for energy. Their respiration also returns carbon dioxide to the atmosphere. Decomposers break down plant and animal waste products. They also break down dead plants and animals. The decomposing process releases carbon dioxide gas into the atmosphere.
How do fossil fuels and volcanic activities contribute to the carbon cycle?
~ When fossil fuels are burned, carbon dioxide is released into the atmosphere in the form of gas. When volcanoes erupt, carbon dioxide that was in the magma passes into the atmosphere as carbon dioxide gas.
How is carbon returned to the Earth and sea in the carbon cycle?
~ Carbon is returned to the Earth and sea in the form of precipitation after carbon dioxide mixes with rain and snow. Erosion is another way that carbon is returned to the sea. When shellfish die, the carbon that was in their shells collects at the bottom of the ocean and eventually forms sedimentary rocks.
Give one example of a human activity�that could disrupt the�carbon�cycle�as well as the consequences of this disruption.
~ Burning fossil fuels can disrupt the carbon cycle, since they increase carbon dioxide in the air, which can lead to environmental problems such as acid rain.
Photosynthesis is the process by which plants produce their food in the presence of sunlight that is solar energy with the use of carbon dioxide and water. The breakdown is the mechanism by which plants give their carbon dioxide back.
What is end product of photosynthesis ?The end products of photosynthesis are glucose and oxygen that is given back to the atmosphere.
In plants, photosynthesis is the process by which plants prepare their food in the presence of sunlight and glucose is made thus this is the way by which plants are preparing their food and in the case of plants glucose is stored in the form of starch.
With the reactions going on when the cellular respiration reactions are going on at that time the reactions produce enough of carbon dioxide which is given back to the atmosphere thus this dependency helps to interpret the mutual relationship.
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