Answer:
growth of organisms, repair of damaged cells, and reproduction of new cells
Explanation:
Which steps are involved in desalination of water? Check all that apply. Salt is removed from ocean water to provide fresh water. Water is heated until it evaporates. Water is condensed and collected. Water is transported from one area to another area that has little water. Water is collected and salt allowed to settle at the bottom.
The correct answer is option as given below -
1. Water is heated until it evaporates.
2. Water is condensed and collected.
3. Water is collected and salt allowed to settle at the bottom.
Answer:
1 2 3 comrades
Explanation:
Please help me with question 8
I think the answer would be dessert
(if i get it wrong im really sorry)
Which of the following is an example of how a changing environment is important for the sustainability of living systems?
A.
The water cycle ensures that water used by one organism will be available for another organism in the future.
B.
The erosion of top soil reduces the diversity of organisms in an ecosystem.
C.
Global climate change may lead to the extinction of many species that are unable to adapt to the changes.
D.
all of these
D. They all show a change in the environment
THnks for your responding, but the rght answer is (A.) because I click (D) I got it wrong So!!!!!!! A is the right answer..
Is mars sustainable for humanity to live on It?
It is said Mars use to be. But now Mars has dried up and has no air and is not sustainable for human life.
As of now, no. However, we can set up base with equipment from earth that allows us to live in mars, but we cannot live in it like it is earth.
if your corpus collosum were severed,could your right postcentral gyrus know what your left hand was doing ?why or why not
No.
This is because your corpus collosum is the brand of nerve fibers that join the two hemisphere of your brain, if it was severed, your post central gyrus would not know what your left hand was doing because the corpus collosum is part of the connection that helps your brain register the information.
generally describe what forces ultimately shaped the earth into its modern form
The force of gravity is a major force that created the earth. As rocks and ice clumped together as they spun around the newly formed star (sun), the force of gravitational pull increased and attracted more debris (rocks and ice). The clumps of rocks, debris, and ice, therefore, grew into a planet.
Another is electromagnetic force. The spinning currents in the outer core of the earth create a dynamo effect that forms a magnetic field around the earth. This shields the earth from the solar storms of the sun hence protects life and the atmosphere.
Weak nuclear force is responsible for maintaining the heat of the earth’s interior which is critical for maintaining the dynamo effect of the outer core so the earth is protected by its magnetic field.
How did the Sedimentary rock MOST LIKELY form?
(Pick from the answer choices above please)
A.By sand and other materials being deposited and hardening over time.
In 1952 Hershey and chase conducted a series of experiments indicating that DNA was the physical carrier of heredity True or False ?
Answer:
TRUE
Explanation:
In 1952, Alfred Hershey and Martha Chase conducted a research that came to the conclusion that DNA is the basis of hereditary genetic material. This landmark of science became known as the Hershey-Chase experiment and consisted of an experiment called "blender experiment" which proved that it is DNA - not protein - that is responsible for the transmission of genetic material, contrary to the scientific consensus of the time. The experiment won the Nobel Prize in 1969.
Students research unicellular, prokaryotic organisms that live in harsh environments such as volcanic hot springs, brine pools, and anaerobic black organic mud. Which of these groups are the students most likely researching?
f. Protista
g. Archaebacteria
h. Plantae
j. Eubacteria
Help Me Plz!
6. If DNA is stuck in the nucleus, but proteins are made in the ribosomes (out in the cytoplasm), how do we get the information out of the nucleus?
a. Messanger RNA (mRNA)
b. Enzymes
c. Transfer RNA (tRNA)
d. Helper RNA (hRNA)
11. How do tRNA molecules know where to go?
a. They look at the DNA coding
b. They complement the mRNA strand
c. They guess
d. They get help from the ribosomes
16. True or False: After a protein sequence is made, it needs to fold into the correct shape.
18. What is one characteristic that determines how the protein folds?
a. The amino acids hydrophobicity
b. The DNA
c. The color of the amino acid
d. Both hydrophobicity and color
19. If all the amino acids were hydrophobic and you placed them in water, what would happen to the shape of the protein?
a. It would squish into a ball (as best as possible)
b. It would flatten out
c. Half would flatten and half would be a ball
d. All the above
20. What is a mutation?
a. When something gets changed, or there is a mistake in the DNA sequence
b. When the DNA strand accidentally leaves the nucleus
c. When the mRNA strand doesn’t attach to a ribosome
d. No protein forms
21. Describe the effects a DNA mutation could have on a protein.
a. The mutation might code for a different amino acid
b. It a letter is deleted it could shift the reading frame and change all the subsequent amino acids
c. A hydrophobic amino acid could change to a hydrophilic amino acid which would cause the protein to fold differently.
d. All the above
6. A (messenger RNA)
11. B (have anti-codons which correspond to the codons on the mRNA)
16. True (proteins get their function mostly from their shape. If they are denatured/bent out of shape, they are no longer functional)
18. A (if an amino acid is hydrophobic, it will fold away from the water to the inside of the protein)
19. A (not too sure about this one)
20. A
21. D
Note: I didn't check the date on this question, haha
I might be too late to help
What are the subcategories of protein?
Protein can be categorized into two types:
complete and incomplete proteins.
Proteins are made up of smaller units, called amino acids.
Complete proteins contain all of the amino acids your body needs and include meat, fish, poultry, dairy, and soy products.
proteins are made up of small units of molecules known as amino acids. The amino acids are categorized as essential and nonessential where the essential ones cannot be synthesized in our body and should be taken through diet. The two subcategories of protein are complete protein and incomplete protein.
Complete protein provides all the nine essential acids that are needed for the body.
Incomplete proteins lacks one or more essential amino acids that are required by the body.
Which cell structure does a bacterial cell lack? Ribosome Cell Wall Lysosome Cytoskeleton
Answer is A. Ribosome
Ribosome cell structure does a bacterial cell lack.
What is Ribosome?A ribosome is an intercellular structure made of both RNA and protein, and it is the site of protein synthesis in the cell.
The ribosome reads the messenger RNA (mRNA) sequence and translates that genetic code into a specified string of amino acids, which grow into long chains that fold to form proteins.
The biological machinery that produces proteins is known as a ribosome. Each cell contains several ribosomes, which are each composed of two subunits. These two subunits form a tight seal around the messenger RNA molecule before moving down its length and reading each three-letter codon.
Therefore, Ribosome cell structure does a bacterial cell lack.
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In green leaves, light-absorbing compounds called pigments are made of
Chlorophyll is an orpiment that gives plants their green color.
Chlorophyll a and b are the major green pigments in leaves that absorb light, specifically in violet/blue and orange/red wavelengths for photosynthesis, while reflecting green light, which gives leaves their green color.
Explanation:In green leaves, the light-absorbing compounds are known as pigments. These pigments, specifically chlorophyll a and chlorophyll b, are located in the organized structures called chloroplasts. Chlorophyll is a type of porphyrin molecule with a conjugated bonding structure, consisting of alternating single and double carbon-carbon bonds, which allows it to efficiently absorb light energy for photosynthesis. This capability enables these molecules to absorb light in the violet/blue and orange/red wavelengths, while green light is reflected, giving leaves their characteristic color. Apart from chlorophyll, plants also contain other pigments like carotenoids, which can absorb different wavelengths of light and contribute to the plant's ability to perform photosynthesis under various light conditions.
Where does the Calvin cycle take place
This process is fueled by, and dependent on, ATP and NADPH from the light reactions. Unlike the light reactions, which take place in the thylakoid membrane, the reactions of the Calvin cycle take place in the stroma (the inner space of chloroplasts).
Answer:
stroma of the chloroplast
Explanation:
The Hardy-Weinberg principle is written as an equation: p2 + pq2 + q2 = 1. What does the q represent?
the size of the population
the size of the gene pool
frequency of the dominant allele
frequency of the recessive allele
Answer:
The correct answer option is: frequency of the recessive allele.
Explanation:
When there are no mutations, no selective forces, no gene flow, no non-random mating and large population size, the population is said to be in Hardy- Weinberg equilibrium.
When Hardy-Weinberg equilibrium is met, it is written in the form of an equation which is as follows:
[tex]p^2+2pq+q^2=1[/tex]
where [tex]p^2[/tex] represents the frequency of the homozygous dominant allele, [tex]2pq[/tex] is the frequency of the heterozygous allele while q or[tex]q^2[/tex] represents the frequency of the homozygous recessive allele.
minerals are formed from inorganic materials
If north is straight up on a 2-dimensional graph, where would a coordinate point east and south of the reference point be located?
A. upwards to the left
B. upwards to the right
C. downwards to the left
D. downwards to the right
I believe its B. Upwards to the right
After a strain of bacterial cells is exposed to a chemical mutagen, only 30% of the cells produce new colonies that continue to grow. Which of the following can be concluded?
A. Some cells underwent advantageous mutations
B. Some cells underwent neutral mutations
C. Some cells underwent lethal mutations
D. Some cells underwent deleterious mutations
The answer is; A
Most of the bacteria cells were affected by the mutagen that disrupted their DNA through mutations. Most of the mutations were deleterious/lethal/disadvantageous leading to the death of a higher proportion of the bacterial colony. However, of the many mutations caused by the mutagen, some were advantageous – meaning they probably protected the cells from the mutagen. These were able to continue reproducing and formed a new mutant colony.
Most of the nucleated cells in a multicellular organism contain all of the genetic information for the organism. Which of the following cells does not fall into this category?
Parenchymal cell
Nerve cell
Epithelial cell
Sperm cell
Answer: Sperm cell
Explanation:
Amongst all the 4 options given, only the Sperm cell is a gamete (sex cell) while all the three are somatic cells.
A somatic cell is the one which forms the body of an organism and contains all the genetic information.A gamete is the one which is required for the purpose of fertilization. A gamete of male fuses with the gamete of female in a process called fertilization to form a zygote to give rise to a new individual.A Sperm cell is basically a male gamete. It contains only half the amount of genetic information as the other half is contributed by the female gamete.This difference in the amount of genetic information arises due to the type of cell division that occurs. The somatic cells undergo mitosis whereas a gamete requires meiosis to occur for its formation.During mitosis there is a single round of cell division which divides the parent cell into two daughter cells each with the complete genetic information. During meiosis the cell undergoes two rounds of cell division such that a total lf 4 cells are produced each with half the amount of genetic material as present in the parent cell.Since, sperm is a male gamete and is formed by meiosis it contains only half the genetic information as compared to the other cells.
(d) Sperm cells is correct option, superm cell unlike most nucleated cells, contain only half the genetic information of the organism (haploid) due to their role as germ cells.
Most of the nucleated cells in a multicellular organism contain the complete set of genetic information for the organism, which is characteristic of somatic cells.This includes cells like parenchymal cells, nerve cells, and epithelial cells. However, sperm cells do not fall into this category because they are germ cells.Germ cells, including sperm and eggs, contain half the genetic information of somatic cells—they are haploid, carrying only one set of chromosomes.This reduction in chromosome number happens through a special cell division process called meiosis.When a sperm cell fertilizes an egg cell, the resulting zygote has the full set of genetic information.20 POINTS!!!!!!
Describe the chemical and biological processes that take place during photosynthesis and cellular respiration.
Identify several animal species native to your local community. Research the feeding habits of these species. Also look for any information about organisms that may use these animals as a source of food. Begin to create a food web showing the feeding relationships between all of the organisms you identify from this first step. Use the results from the previous step to widen your search. Add more organisms to your food web as you read. In addition, identify each organism according to its role in the food web: producers, consumers (herbivores, carnivores, and omnivores), and decomposers. Be sure that you have several representatives of each energy role.Use the computer to prepare a model of a food web summarizing the information you gathered during your research. This may be done using word processing or illustrating software. Include the sources you used as you gathered information during your research. Click on the link below to access the Food Web portfolio rubric. Review the rubric to be sure that you understand how your work will be evaluated. If you feel that you need to make any adjustments to your food web, do that before submitting it to your teacher.
This would depend entirely on where you live.
I live in the U.P. of Michigan, so mine would be something like this:
An animal species native to my community is the wolf. The wolf can eat animals as small rabbits and birds, all the way up to deer. It is very rare to see a wolf hunted and eaten by something else besides a human.
I cannot finish the rest of this question because I wasn't there for Part 1.
This depends entirely on where you live. If you live near an ocean, maybe you can do it on sea creatures. If you live in the desert, maybe you can do it on snakes. If you live in an arctic area, you could do it on polar bears. There are many combinations and a quick Google search can tell you what they eat and what eats them.
Which of the following can be explained with science? (4 points) Select one: a. Plant growth b. Career options c. Moral value d. Meaning of life
Which of the following will pass through a cell membrane most easily? A) small polar molecules B) small nonpolar molecules C) large polar molecules D) large nonpolar molecules E) large neutral molecules
B) small non-polar molecules. Small molecules can pass through the cell membrane through diffusion (does not require energy). The molecule being non-polar is an advantage because the tails of the phospholipid bilayer is hydrophobic (nonpolar), so it does not repel nonpolar molecules.
Small nonpolar molecules, due to their compatibility with the nonpolar interior of the cell membrane, will pass through a cell membrane most easily.
Explanation:As per the properties of the cell membrane, small nonpolar molecules will pass through a cell membrane most easily. This is because the cell membrane is a lipid bilayer, in which the main components are phospholipids. These phospholipids are made up of a polar 'head' and two nonpolar 'tails'. Hence, the nonpolar (hydrophobic) interior of the cell membrane allows nonpolar molecules like oxygen and carbon dioxide to easily cross the membrane without requiring any additional energy, hence making choice B) the answer to your question.
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Is public speaking an internal or external stimulus?
Stimuli (usually) activate one or more of the senses. Stimuli can be internal as well as external. Internal stimuli signal the state of the body. ... Some examples of internal stimuli: the feeling you describe as hunger, the churning sensation you experience when anxious or afraid.
-All ralig have eyes. -All hafte have ears. -Some ralig have ears.
This is a syllogism question and you have posted three statements here.
All ralig have eyes (lets call it region A)All hafte have ears (lets call it region B)Some ralig have ears (lets call it region C)Now, the diagram is attached here.
So, the conclusion statements can be found on the basis of these 3 premise statements
Which is a drawback to the use of oil shale to produce energy? Oil shale can be mined only in arid regions. Processing, mining, and waste disposal are expensive. Most of the world’s oil shale occurs in politically unstable countries. Oil shale occurs only in areas with plentiful water resources for processing.
The answer is; Oil shale occurs only in areas with plentiful water resources for processing.
The refinement of oil shale requires a lot of water. This is used to quench the products of retorting and pyrolysis and also reduce dust. The water used becomes heavily polluted and has to be treated before discharge, otherwise, it will be the cause of a major environmental disaster to the local areas.
Answer is: Processing, mining, and waste disposal are expensive.
true or false: water is an ionic compound
water is about 33% ionic.
But no. Its not and ionic compound
No water is a polar compound
What would chromosomes be part of a school ?like if the school was a cell what would chromosomes be?
In every school you have a transcript that stores information. The chromosomes in a cell also store information. So, in a way, our school transcript is like a chromosome in a cell. Hope I helped!
Chromosomes in a school cell would be similar to a library, as both store important information for the functioning of the cell and the school.
Explanation:In a cell, the chromosomes would be similar to the school's library. Just as the chromosomes contain genetic information in a cell, the library contains information in the form of books and documents in a school. Both chromosomes and the library store important information that is necessary for the functioning of the cell and the school.
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What would you predict the temperature of the dry sand to be if the scientist took a reading after 10 minutes ?
Mmm you tell me babe
The frog population in this ecosystem is rapidly decreasing due to pesticide use. Bird watchers in the area express their concerns about the impact the loss of frogs will have on birds. Officials hire a scientist to study the system and give an opinion.
Which statement would be the most likely response from the scientist?
A.Loss of frogs is likely to increase grasshopper populations so all bird populations are also likely to increase.
B.Loss of frogs is likely to have little effect on bird populations because birds can easily switch food sources.
C.Loss of frogs is likely to have positive effects on some bird species and negative effects on others.
D.Loss of frogs is likely to negatively affect all bird species in the food web because a prey species would be lost
I would say the answer is A or B
The scientist would likely suggest that the decrease in frog population may have both positive and negative impacts on various bird populations, based on their individual adaptability and alternate food sources.
Explanation:The most likely response from the scientist studying the ecosystem and decreasing population of frogs would be option C: 'Loss of frogs is likely to have positive effects on some bird species and negative effects on others.' This is because every species in an ecosystem is interconnected. Frogs are a food source for certain bird species, and their loss could lead to declines in those bird populations. However, some other bird species might benefit if they can easily switch to other food sources, such as insects or small mammals, that might become more abundant in the absence of frogs.
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