Answer:
-0.0025
Explanation:
12+2 is 14
to the third power means 14³
that is 2744
4×2-15= -7
2744÷ -7= -0.0025510204
approximate to the nearest four digits
-0.0025
Answer:
-5
Explanation:
12+2 to the third power is 20
20/4=5
5x2=10
10-15=-5
The base pairs in a DNA strand are held together with hydrogen bonds. If the two nitrogenous bases in each pair were held together with covalent bonds instead of hydrogen bonds, what effect would it have on the cell?
Answer:
Explanation:
Complementary base pairing is important because the hydrogen bonds between the bases hold the two strands of DNA together and because it serves as a way for DNA to replicate.
Write a creative paragraph describing the “thought” process of the first cell that describes how this symbiosis occured. (Of course, there was no real thought involved, but imagine that you are a cell that encounters an interesting prokaryotic cell and tries to convince it to be ingested and help you out in some way.
Answer:
just learned about this in ap bio haha
Explanation:
Wow, that's such a cool prokaryotic cell. It looks so delicious, I wonder if I can eat it.
"Hey, cell, can I eat you?"
"No, you cannot."
"Please? I would love to have your energy-making properties!"
"How would I benefit from this? It seems like you're being parasitic."
"I would help you, by giving you protection and a safe home. You would give me energy. It seems more like an endosymbiotic relationship to me!"
"Fine, you can ingest me."
I'm so glad they let me eat them, they were so yummy. I can even create energy now, and I have a powerhouse inside me! This is so cool, maybe I should eat that other cell with photosynthetic properties.
SORRY IF THIS IS TERRIBLE I REALLY TRIED
Previously, there was a cell. Moving about the primordial soup, it was making its way through the tough environment. It abruptly came across a little prokaryotic cell.
What is a cell?The cell was glad to have someone to share the environment with since, to be completely honest, it was starting to feel a little lonely. The two cells began to interact often and peacefully cohabit.
The first cell began to consider how much simpler it would be to survive if the other, smaller cell moved in with me. After a brief moment of hesitation, the cell fearlessly said, The rest, as they say, is (endosymbiotic) history.
Studies on the mitochondria and chloroplasts are thought to have come from bacteria living in large cells.
Therefore, this supports the theory that eukaryotic cells developed through endosymbiotic relationships between prokaryotes.
Learn more about cells, here:
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Smooth ER is responsible for producing the following molecules_____?
Answer:
it is responsible for fats producing.
Explanation:
i hope it is help full
Explanation:
SER - Smooth Endoplasmic reticulum has no ribosomal particles on the surface .It looks smooth.SER helps in manufacturing of lipids and fat molecules . Important for cell function and plays a crucial role in detoxifying many poisons and drugs in liver vertebrates.Oxygen attracts electrons more strongly than hydrogen does. What kind of bond forms between the two hydrogen atoms and single oxygen atom that form a water molecule? please no links
A.) A Polar Bond
B.) A Metallic Bond
C.) An Ionic Bond
D.) A Hydrogen Bond
Answer:
A. Polar
Explanation:
It is covalent but more specifically polar bond
Not ionic since it's covalent
not metallic since there are not metals
Hydrogen bonding is bond between hydrogens and not with others (the bonding between other water molecules can be considered hydrogen bonding)
What is the smartest animal on earth?and why?
Answer: Dolphins
Explanation:
Dolphins are well-documented as intelligent animals. They can recognize themselves in a mirror and communicate with each other. Their large brain is structured for awareness and emotion, and dolphin brains are even more structurally complex than those of humans.
Can somebody help me!!
Answer:
The answer is C (I can't really see. It's blurry)
All of your ribs attach to your spine, but only the top seven pairs connect to your sternum.True ribs attach directly to the sternum while false ribs are linked to the sternum through costal cartilage.
Hope this helps!
What are the two ways genes can be inherited?
Answer:
autosomal dominant – where the gene for a trait or condition is dominant, and is on a non- s e g s chromosome.
autosomal recessive – where the gene for a trait or condition is recessive, and is on a non- s e g s chromosome.
Explanation:
Hope this helps :)
Need help been on this question for a couple minutes now!
Answer:
D
Good luck!!! Let me know if it's wrong
Limiting factors caused by
natural disaster tend to be
which of the following?
A. Density-balanced
B. Density-dependent
C. Density-independent
Answer:
C. Density-independent
Explanation:
Limiting factors caused by natural disasters that tend to be Density-dependent. Thus, the correct option for this question is B.
What are the Limiting factors?The Limiting factors may be defined as anything that significantly constrains a population's size and declines or stops it from growing. Some examples of limiting factors may include biotic, like food, mates, and competition with other organisms for resources.
According to the context of this question, density-dependent factors are those factors that vary with respect to the density of the population. These factors affect a higher proportion of individuals when population densities are higher.
And a lower proportion when population density is lower. Examples of these factors may include, food, competition, predation, competition, parasitism, accumulation of toxic waste, etc.
Therefore, limiting factors caused by natural disasters tend to be Density-dependent. Thus, the correct option for this question is B.
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What are the two DNA components shown in the Gizmo?
Answer:
pentagonal sugar (deoxyribose) and a nitrogenous base.
The components of DNA that is displayed through Gizmo would be:
A). Pentagonal sugar (deoxyribose)
B). A nitrogenous base.
DNA
"DNA" is described as a biopolymer belonging to a kind of nucleic acid i.e. deoxyribonucleic acid.This involves primarily four distinct chemical groups:AdenineGuanineCytosineThymine"Gizmo" displays two elements known as deoxyribose, as well as, a nitrogenous base.Learn more about "DNA" here:
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Which of these is the biggest?
A: climer
B: polymer
C: monomer
D: dimer
Will give brainliest to correct answer
Polymer is the biggest of the given options.
Explanation:
The monomer is a simple repeating unit in a polymer.The monomer can combine with other monomers to give the large molecules like dimer, trimer, polymer.The dimer is a molecule in which two combined monomer units are present.A polymer is a long chain composed of several monomer units which are chemically combined together.The order of increasing size from monomer to polymer:monomer < dimer< polymer
So, from this, we can conclude that polymer is the biggest of the given options.
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What does having multiple alleles mean? Give an example of a human multiple allele traits.
**PLEASE HELP**
Alleles are versions of a gene that will express different qualities. Multiple alleles would mean that a gene has many variations; for example, there a multiple alleles for eye color: blue, green, brown, etc. The opposite would be a gene with just two variations; an example would be simple pea plants which can have smooth or wrinkled pods.
Hope this helps!!
What is the final product of mitosis in humans?
Two daughter cells with the same 23 chromosomes as the parent cell.
Two daughter cells with the same 46 chromosomes as the parent cell.
Two daughter cells with 23 chromosomes that are different from the parent cell.
Two daughter cells with 46 chromosomes that are different from the parent cell.
Answer:
Two daughter cells with the same 46 chromosomes as the parent cell
Explanation:
for mitosis think clone so same
for meiosis think parents so different
Why or why not ? The biology of skin color
Answer:
No
Explanation:
No skin color is perfect in ANY environment. One of the uses of melanin (A primary skin pigment) is to absorb ultraviolet rays from the sun that initiate Vit. D production.
So an abundance of melanin is beneficial in an an environment with a large amount of sun to prevent an excess of Vit. D in the blood.
Inversely, less melanin is useful to an individual in an environment that gets little sun since there is not as much melanin to inhibit Vit. D production, and thus is less likely to have a Vit. D deficiency.
What is it called when dna copies itself
replication :)
Good luck :D
Answer:
DNA replication
Explanation:
DNA replication occurs when a molecule of DNA is duplicated. When a cell divides, it must first duplicate its genome.
Define symbiotic Nutrition !!!!
Answer:
Symbiotic nutrition is the relationship between organisms in which they share their nutrition and shelter. This mutual relationship may or may not be beneficial to both partners.
Explanation:
An example of a symbiotic relationship is the mutually beneficial interaction between a clownfish and an anemone. The anemone's nematocysts, or stinging cells, protect the clownfish from predators and give clownfish pairs a safe place to lay their eggs.
NEED HELP!
What does a plant or animal need to survive in a certain ecosystem?
Answer:
it depends on the animal/plant/ecosystem
Explanation:
if you are looking for a specific plant /animal/ecosystem you can research about adaptations for the plant/animal or the different plants/animals in the specific ecosystem.
The Amazon rain forest is a tropical ecosystem. Natural selection in this ecosystem favors ferns that are tolerant to
Natural selection in the tropical ecosystem favors ferns that are tolerant to shade, high wind velocity, frost, drought, etc.
What do you mean by Ecosystem?An Ecosystem may be defined as an area where organisms of different species are present together in a given time and interact with one another in order to survive.
The tropical ecosystem consists of dry seasons driven by the tropical rain belt moving within the region. Tropical rainforests are located around and near the equator, therefore having what is called an equatorial climate characterized by three major climatic parameters: temperature, rainfall, and dry season intensity.
Therefore, Natural selection in the tropical ecosystem favors ferns that are tolerant to shade, high wind velocity, frost, drought, etc.
To learn more about the Tropical ecosystem, refer to the link;
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Answer:
shade
Explanation:
How do salt ions/water move through a semi-permeable membrane? What is required for their transport?
Answer:
Water passes through the membrane in a diffusion process called osmosis. During active transport, energy is expended to assist material movement across the membrane in a direction against their concentration gradient. Active transport may take place with the help of protein pumps or through the use of vesicles.
Plants and animals that live in different environments have adaptations that make them well
suited for the environment. These adaptations are variations within the species that allow
them to survive and reproduce.
What are some adaptations in animals that would allow them to thrive in a desert
environment? Choose ALL that apply.
burrow
hibernate
noctural
Blanke ears
light fur color
Answer:this should help i hope
Explanation:The adaptations are in place to provide the animal with a better chance of survival. In the desert adaptations are required for plants and animals to survive the hot and dry conditions. Plants have adapted to cope with the lack of water in their environment, for example the barrel cactus has expandable stems for storing water.
Animals in the desert will adapt by the following methods:
burrownocturallight fur colorWhat are adaptations?Adaptations are special features and structures possessed by organisms which enhances their chances of survival in their environment.
The desert is a hot and dry environment.
Therefore the adaptations will be to reduce heat and conserve water.
Therefore, animals in the desert will adapt by
burrowingliving a nocturnal lifeand having light fur colorLearn more about deserts and adaptations at: https://brainly.com/question/6802904
in internal respiration oxygen carried in ___ moves into cells, and waste carbon dioxide moves out into___
In internal respiration ,oxygen is carried by arteries into the cells and waste carbon dioxide moves out into the veins.
What is Internal respiration?Internal respiration is the process by which oxygen move from the blood to the interstitial fluid and into the cells where by Waste and carbon dioxide are removed from the other direction, from the cells to the blood.
Therefore, In internal respiration ,oxygen is carried by arteries into the cells and waste carbon dioxide moves out into the veins because arteries carries oxygenated blood while veins carries deoxygenated blood.
Learn more about internal respiration here.
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Which word best describes the rock’s grain shape? jagged oval round smooth.
The word that best describes the rock's grain shape is jagged.
What do you mean by the Rock's grain shape?
It significantly defines the structural arrangement of a granular mass within a rock.
In some rocks, the grain shape results from the shapes of crystals that form the rock. While in some other rocks, the grain shape results from the fragments of other rocks that can be considered as round, smooth, and sometimes jagged.
Therefore, the word that best describes the rock's grain shape is jagged.
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Answer: A
Explanation i just took the test
A student is learning about the functions of leukocytes. What statements about these cells are correct
Leukocytes are colorless cells that circulate in the blood and belongs to the body's immune system and helps the body fight infections and other diseases.
What is their function?Leukocytes are responsible for fighting other diseases and protecting your body from infections. Since they are part of the immune system, leukocytes circulate your blood and help cure injuries or illness.
the property of matter that describe a solvent is mixing with a solute to make a solution is know as
Answer:
I think a
Explanation:
Answer:
the letter is C
Explanation:
why because it says , A solvent is mixing a solute to make a solution .
you can say thank u in the comments
ill say no problem to
your welcome <3
Which correctly orders the parts of a multicellular organism from LEAST complex to MOST complex?
Answer:
A
Explanation:
HELP ASAP- Which type of evidence for evolution do you think is more informative: fossil evidence or genetic evidence?
Answer:
I think genetic evidence is more effective because you never know if something crashed into the rock and made it look like a fossil. So, I think genetic evidence would be a better option.
Hope this helps!
Answer:
Both are equal because you can use fossil evidence to show what type of animals evolved but you can also use genetic evidence to show that evolution happened.
Hope this helps! This is just my opinion on the subject.
Which best describes how mRNA is produced in a cell?
A. mRNA is made by duplicating RNA found in the nucleus.
O B. mRNA is made by DNA, using RNA nucleotides as a template.
C. mRNA is made by lining up RNA nucleotides, using DNA as a
template
D. mRNA is made by breaking apart DNA and reusing the pieces.
Answer:
B
Explanation:
mRNA is synthesized in the nucleus using the nucleotide sequence of DNA as a template.
An organic compound composed of carbon and hydrogen connected only by single bonds is an.
Answer:
i think it is a hydrocarbon
Answer:
Alkanes or saturated hydrocarbons
Receptors that monitor tension in muscles, called ______, consist of peripheral endings of nerve fibers that wrap around collagen bundles in the tissue that connects muscle to bone.
The receptors that monitor tension or stretch in muscles are called muscle spindles.
What are muscle spindles?Muscle spindles are receptors that monitor tension or stretch within the body of a skeletal muscle.
They act by mainly detecting changes in the length of the muscle and convey this information to the brain through afferent neurons for processing.
Muscle spindles consist of peripheral endings of nerve fibers that wrap around collagen bundles in the tissue that connects muscle to bone.
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I need to know the first law of newton