Which of the following statements is true? A. Both prokaryotic and eukaryotic cells have one or more cells
B. Prokaryotic organisms are always unicellular, but eukaryotic organisms are always multicellular
C. Prokaryotic organisms are always unicellular, but eukaryotic organisms can be either unicellular or multicellular
Answer:
C
Explanation:
Prokaryotic organisms are always unicellular, but eukaryotic organisms can be either unicellular or multicellular
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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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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How does DNA code for traits? Explain your response
Answer: ................................................................................................
Explanation:
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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Water is made of three atoms. This means it is
The most important function of nucleic acids is
Answer:
The functions of nucleic acids have to do with the storage and expression of genetic information. Deoxyribonucleic acid (DNA) encodes the information the cell needs to make proteins. A related type of nucleic acid, called ribonucleic acid (RNA), comes in different molecular forms that participate in protein synthesis.
Explanation:
The most important function of the nucleic acids is to store and express the genetic information of the cell in the form of DNA (deoxyribonucleic acid).
What is Nucleic acid?
Nucleic acids are the naturally occurring biochemical compounds which serve as the primary information-carrying molecules in the cells.
The important functions of nucleic acids is the storage and expression of the genetic information in the cell in the form of DNA. Deoxyribonucleic acid (DNA) encodes the information the cell requires to synthesize proteins. Another type of nucleic acid is called ribonucleic acid (RNA), it comes in different molecular forms which participate in protein synthesis.
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What are the two types of venomous snakes? Describe each type and include an example.
Answer:
The King Cobra and the Black Mamba
EXPLANATION:
The black mamba is a species of highly venomous snake belonging to the family Elapidae. It is native to parts of sub-Saharan Africa. First formally described by Albert Günther in 1864, it is the second-longest venomous snake after the king cobra; mature specimens generally exceed 2 m and commonly grow to 3 m
The king cobra, also known as the hamadryad, is a venomous snake species in the family Elapidae, endemic to forests from India through Southeast Asia. It is threatened by habitat destruction and has been listed as Vulnerable on the IUCN Red List since 2010. It is the world's longest venomous snake.
Answer:
The two types of venomous snakes are Elapine snakes, and Viperine snakes. Elapine snakes have shorter fangs and venom that paralyzes the respiratory system. Cobras and coral snakes are Elapine snakes. Viperine snakes have longer hollow fangs and venom that attacks red blood cells. Rattlesnakes are viperine snakes.
Explanation:
Do you think these fish are an example of natural selection among two populations of the same species? Explain your answer.
Answer:
It depends on the fish (I do not see any pictures) Any fish is an example of natural selection.
Explanation:
A good example would be that polar bears grew and evolved to have white fur to blend in the snow to sneak upon prey. However, their brown bear counterparts failed to do that. So due to better camouflage and hunting technique, the polar bears survived more up north.
Answer:
The two fish are of the same species because they can mate with each other. Also, the characteristics of the blind cave fish enable them to live in caves. Eyes need energy. So, developing bodies with no eyes allowed these fish to function more efficiently.
Explanation:
do trees Make their own energy every day
Answer:Trees and other green plants are the source of energy for all animal life to live and grow. Through the process of photosynthesis plants change light energy from the sun into chemical energy that is stored in the plant as carbohydrates (sugars) as it grows
Explanation:
What is a sentence connecting genes, genetics, genomes, proteins, and trait
Answer:Combination TTT
Explanation:
what element has 7 protons and 5 neutrons?
What medical conditions do scientists hope botulinum will help? Check all that apply. *
hyperactive muscles
Parkinson’s disease
cerebral palsy
common cold
Answer:
hyperactive muscles
Parkinson’s disease
cerebral palsy
Explanation:
aaag jus truss me
6. In neighboring water molecules, oxygen is attracted to ____
forming a ____ bond
Answer:
hydrogen, covalent
Explanation:
what explains why water moves from the roots to the leaves of plants
Answer: The word you are looking for is cohesion
Explanation.it is important for moving water from the roots to leaves
An experiment was performed to determine the health effects of different amounts of second-hand smoke on one-year-old hamsters. What is the Independent Variable of the experiment?
Answer:
Independent variable: different amounts of second-hand smoke
Explanation:
The independent variable in an experiment is the variable that the experimenter changes or manipulates in order to bring about a measurable response.
In this question, a test is being carried out to determine the health effects of different amounts of second-hand smoke on one-year-old hamsters. Based on this, the independent/manipulated variable is the DIFFERENT AMOUNTS OF SECOND-HAND SMOKE because it is the variable being changed.
Food we eat has not been modified through selective breeding.
a) True
b) False
*No wrong answers please.*
Answer: True.
Quizlet is a very good resource to use for problems like this.
Food we eat has not been modified through selective breeding. This statement is true.
What is selective breeding?Selective breeding is the process where individual organisms with certain desirable traits are selectively bred for the purpose of propagating that particular trait.
Selective breeding is applied in agriculture for the purposes of rearing or cultivating high yielding breeds of farm animals and crops.The food we eat has been modified through selective breeding. Hence the statement: Food we eat has not been modified through selective breeding.
Milk production selective breeding has bee applied in milk production by selectively rearing cows with high milk production as planting of disease-resistant crops selective breeding has been applied in the cultivation of disease resistant crops.
Therefore, Food we eat has not been modified through selective breeding. This statement is true.
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Please hurry
Which is an example of a
deletion mutation that results in a new protein?
A. CAT-CGA-TCC mutates to CAC-TCG-ATC-C
B. ATT-CGG-CCA mutates to AAC-CGG-CCA
C. ATT-CGG-CCA mutates to AAT-CGG-ATT-CCA
D. CAT-CGA-TCC mutates to CAT-TCC
Answer:
D. the answer is CAT-CGA-TCC mutates to CAT-TC
Explanation:
Answer:
The answer is D.
Explanation:
What type of energy change cause the leaf to grow?
A. Electromagnetic energy is transferred into chemical energy
B. Thermal energy is transformed into potential energy
C. Electromagnetic energy is transferred to the leaf
D. Thermal energy is transferred to the leaf
Answer:Electromagnetic energy is transferred into chemical energy
Explanation:photosynthesis
During photosynthesis, plants trap light energy with their leaves. Plants use the energy of the sun to change water and carbon dioxide into a sugar called glucose.
Help me with this question?
Answer:
Hey you called me dumb, but i will answer
meiosis
Explanation:
what is the full form of ATP?????¿??????????????????
Answer:
The full term is "Adenosine triphosphate".
Explanation:
What can you do to play an active role in cancer prevention?
Answer: Although humans cannot prevent all cancers, a healthy diet and weight followed by adequate exercise, sleep, and stress reduction all play a part in cancer reduction.
Cancer occurs when cells multiply uncontrollably and are not "cleaned up" by the body. We are dependent on our bodies recognizing and destroying old cells and foreign substances like toxins. When our body's fail to do this, either through stress, poor diet or being sedentary, cancer could result.
Hope this helps.
1) What two problems does the transfer of information from DNA to protein need to overcome?
Clues:
a. DNA is made of nucleotides.
b. Protein is made of amino acids.
c. DNA is located exclusively in the nucleus.
d. Protein is synthesized exclusively in the cytoplasm.
Answer:
The two problems that the transfer of information from DNA to protein must overcome are:
How to bring the information from the nuclear DNA to the place of protein synthesis?How to convert this DNA information into amino acids and then into proteins?Explanation:
The genetic information is found in the DNA and depends on a specific sequence of nitrogenous bases. This information is transcribed into the messenger RNA, whose base sequence is organized into triplets and codons, each of which encodes an amino acid, as well as establishing the pattern for starting and stopping the synthesis of a protein.
How to bring the information from the nuclear DNA to the place of protein synthesis?The DNA must be transcribed into messenger RNA (mRNA), a process that occurs in the nucleus of the cell. mRNA leaves the nucleus and travels to the cytoplasm, where amino acid synthesis will take place.
How to convert this DNA information into amino acids and then into proteins?Once in the cytoplasm mRNA binds to ribosomes, structures in charge of translating the sequence of nitrogenous bases RNA to synthesize amino acids. The set of ribosomes and rough endoplasmic reticulum are in charge of the assembly of amino acids to produce peptides and proteins.
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
Red blood cells have a salt content of 0.9%. When a microbiologist places red blood cells in pure
water, osmosis occurs. What net movement of a substance occurs in this instance of osmosis?
a. water molecules move out of the cells
b. water molecules move into the cells.
c. salt ions move out of the cells.
d. salt ions move into the cells.
Answer:c salt ions move out of the cell
Explanation:
Salt is less than 1
Red blood cells have a salt content of 0.9%. When a microbiologist places red blood cells in pure water, osmosis occurs. This results into water molecules . Thus, the correct option is C.
What is Osmosis?Osmosis is the spontaneous net movement or diffusion of solvent molecules through a selectively-permeable membrane from a region of high water potential or lower solute concentration to a region of low water potential or higher solute concentration, in the direction which tends to equalize the solute concentrations on the two sides of the membrane.
It is of two types, on the basis of movement of solvent particles, when the solvent moves inside the cell it is called endosmosis which results into turgid cells and the movement of solvent molecules outside the cell which is called exosmosis that results into flaccid cells.
Therefore, the correct option is C.
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please help me, i dont like this
Answer:
This is true! Hope dis helps! :)
Explanation:
Answer:
True
Explanation:
I really hope this helped. I did this a long while back so I hope its right. Have a nice day :)
Can water speed up the movement of food and waste through the digestive system
Answer:
No
Explanation:
Find the area of a circle with diameter 20cm and the advantages and
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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why the answer is C not D?
Answer:
Diffusion describes the movement of particles from an area of higher to lower concentration. That is what the ink is doing when it spreads throughout the jelly. Osmosis only occurs across a semipermeable membrane.
Answer:
osmosis is movement of particles through a semipermeable membrane from the region of high concentration to region of low concentration while diffusion is the movement of particles from a region of higher concentration to a region of lower concentration.
Explanation:
here there is no semipermeable membrane hence the correct answer is diffusion.
Heat energy is transferred on Earth by the processes of convection, conduction, and radiation. How does heat energy cause materials to move during convection? Complete the sentences below.
It causes denser materials to ______.
It causes less dense materials to ______.
Answer choices are Rise, Sink, Reflect, Absorb.
Answer:
Heat can travel from one place to another in three ways: Conduction, Convection and Radiation. Both conduction and convection require matter to transfer heat. If there is a temperature difference between two systems heat will always find a way to transfer from the higher to lower system.
In heat transfer by convection, heat energy causes denser materials to sink and causes less dense materials to rise.
What is heat transfer?Heat transfer refers to the process by which heat energy is transferred from one point at higher temperature to another at lower temperature.
Heat energy is transferred on Earth by the processes of convection, conduction, and radiation.
Thus, during convection, heat energy causes denser materials to sink and causes less dense materials to rise.
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