Biology High School

HELP ! BIOLOGY! sorry my screen is hard to read but i need help with these two questions please !

HELP ! BIOLOGY! Sorry My Screen Is Hard To Read But I Need Help With These Two Questions Please !

Answers

Answer 1

Answer:

2) B

3) D

I believe that these are the answers, I hope this helps!

Answer 2
someone already got it i think but canvas sucks

Related Questions

What are the 3 main ways to creating more sustainable energy paths?

Answers

Answer:

Sustainable energy requires a balanced composition between energy security, economic development, and environmental protection [5]. It encompasses energy systems, which are based on three core dimensions: energy security, social equity, and environmental impact mitigation

Explanation:

All organisms and the natural cycles of the earth operate:

one at a time
together
by themselves
without help

Answers

Answer:

Together

Explanation:

All of the organisms need each other to survive, all of the natural cycles are necessary to keep the Earth in balance.

which two statements describe disadvantages of selective breeding? this is my 5th time asking please help me. ​

Answers

A and C or A and D
Sorry if this is wrong

Answer:

A and C

Explanation:

Which of the following is NOT true of a reaction that breaks a bond?
A. It creates low-energy products
B. It is what happens in cellular respiration
C. It is an endergonic reaction

Answers

Answer:

C

Explanation:

Endergonic reactions use energy to build bonds

Exergonic reactions release energy through breaking bonds

C.  It is an endergonic reaction.

Endergonic v/s Exergonic:

In the exergonic reaction, the reactants are at a higher free energy level than the products (reaction goes energetically downhill) while In the endergonic reaction reaction, the reactants are at a lower free energy level than the products (reaction goes energetically uphill). Endergonic reactions use energy to build bonds  while Exergonic reactions release energy through breaking bonds.When a bond breaks, it creates low-energy products.In cellular respiration, breaking of bond happens.

Therefore, the statement which is NOT true for a reaction that breaks  a bond is option C.

Learn more:

brainly.com/question/14698440

How do u merge two. Atoms together and. Make a nucleus atirficially

Answers

There are several ways that atoms can combine. In one way, atoms are put together to form things called molecules. To understand molecules, you have to understand what an atom is made up of. Inside the atom, there's things called neutrons, protons, and electrons. The neutrons and protons are all stuck together in the middle of the atom, making up what's called the nucleus. The electrons are much lighter than the protons or neutrons, and they move all around the nucleus. For a picture of this, look at the answer to the question, .

Some atoms, though, want to have more or less electrons around them than they do. So they form things called bonds that let them share electrons with each other. (There are lots of different kinds of bonds, but this is the basic idea.) When they're sharing electrons, they're totally stuck together and become what's called a molecule.
(added by Mike W.: Those types of bonds are called ionic bonds, where one atom grabs an electron from another and the resulting charged ions stick together by electrical attraction. Bonds can also form even between atoms which are just like each other, so that neither ends up with more or less electrons than it started with. Common examples are the oxygen and nitrogen molecules in the air. Here the reason that the atoms stick together is that the electron clouds, described a bit in that link above, can lower their energy by spreading out over two atoms instead of one, for reasons that one can't begin to describe without quantum mechanics. These covalent bonds are very common and often the strongest bonds around.)

Some atoms, though, don't want to have any more or less electrons than they have. So they don't form bonds with any other atoms. (An example of this is Helium.) So they don't bond at all. (Mike W.: What this really means is that every electron is stuck well, in a low energy state. The next state available would have much higher energy. Only very weak bonds can form with other atoms. The reasons why there are particular states around with different energies are also entirely due to quantum mechanics.))

Describe the motion of the molecules in the cold water in terms of their kinetic energy.

Answers

Answer:

As ice melts into water kinetic energy is being added to the particles.This causes them to be "excited" and they break the bonds that hold them together as a solid resulting in a change of state:solid -> liquid.

6. What is the relationship between amino acids, and proteins,
and DNA?

Answers

The genetic code is the relation between the sequence of bases in DNA (or its RNA transcripts) and the sequence of amino acids in proteins.

(HELP ME PLEASE!!)

Which trait would be passed on from a parent to its offspring because of natural selection?

A)one leg that is shorter than the other

B)lighter fur from repeated sun exposure

C)longer legs that avoid predators

D)bulky muscles from working out

Answers

Answer:

I think the answer will be C longer legs that avoid predators

Explanation:

This is because the long legs are natural

Answer:

C)longer legs that avoid predators

Explanation:

As, these traits of having long legs is for avoiding the predators and is the natural for them so it would pass from a parent to its offspring for its protection which is the natural selection.

In the kool aid mixture, what must there be more of, hydrogen ions or hydroxide ions?

Answers

Answer:

H+, hydrogen ions

What is human fetal development? I need simple definition

Answers

The development of the human embryo follows fertilization, and continues as fetal development. By the end of the tenth week of gestational age the embryo has acquired its basic form and is referred to as a fetus. The next period is that of fetal development where many organs become fully developed.

Answer:

Fetal development is when many of it's organs become fully developed.

Why does the mitochondrial gene tree suggest a later split? Why the disparity between the nuclear gene tree?


this is the link: https://learn.genetics.utah.edu/content/evolution/bears/

Answers

Answer:

Why does the mitochondrial gene tree suggest a later split?

The mitochondrial gene tree suggests a later split because it occurred hybridization later in time, with the transference of the brown bear mitochondrial genetic information to the polar bear population. So the mitochondrial gene tree exhibits a later divergence.

Why the disparity between the nuclear gene tree?

Because the first divergence event of the common ancestor occurred 60,000 years ago, evidenced by nuclear DNI and mitochondrial DNI. However, 100,000 years ago, concerning the mitochondrial genetic material, the hybridization event defined a new more recent common ancestor between the two species.

Explanation:

The use of mitochondrial DNA might present a few problems that need to be considered in evolution studies. It involves only one locus, so it has some limitations when reconstructing history, especially if the locus went through any process, such as natural selection, bottleneck events, or its transference to another population due to hybridization. There is also a high possibility of an incomplete reconstruction of the population history if males and females have different dispersal patterns.

The most proper way of reconstructing history is by complementing mitochondrial information with nuclear genetic information and evaluating their concordancies.

In the exposed example, 600,000 years ago, the original species split into the polar bear and the brown bear. But 100,000 years ago, hybridization occurred between a brown bear female and a polar bear male. The offspring joined the polar bear population, carrying the female genetic information, nuclear and mitochondrial. With time, these individuals interbred with the polar bears, diluting the nuclear brown bear genetic information. However, females carrying the brown bear mitochondrial DNI seemed to be more successful reproductively than the polar bear females. The mitochondrial information, hence, has been in the population for many generations, until today. And this information came from a more recent common ancestor, compared with nuclear genetic information.

(Help me pls)

What did Darwin find at the higher elevations of the Andes Mountains?

A) a fossil of a species similar to a giant armadillo

B) fossils of sloth-like organisms the size of elephants

C)fossilized shells of marine organisms

D)fossils of dinosaurs

Answers

Answer:

d.

Explanation:

next me answer my question ⁉️

What makes the finding of the finding of Wooly Mammoth fossil very unique from other fossils?

Answers

Answer:

The wooly Mammoth is a animal that was once tried to be revived and it is very rare to find

Explanation:

Energy flows into the producers of an ecosystem through the process of

Decomposition

Cellular respiration

Carbon fixation

Photosynthesis

Answers

Answer:

by the process of photosynthesis

Please anyone help please help ASAP ASAP please please help

Answers

Answer:

A

Explanation:

the 1st one is the answer

Which of the following describes a characteristie of blood viscosity
a. Blood viscosity describes how red your blood is.
b. Blood viscosity describes how thick or thin your blood is,
Blood viscosity describes amount of oxyven found in your blood,
d. Blood viscosity describes the amount of pressure your blood places on the walls of your vions and
arteries,

Answers

B: blood viscosity is how thick/thin the blood is.

I suggest just googling simple questions like these, you’ll get answers faster and easier:)
B: blood viscosity describes how thick or thing your blood is

Research the differences that exist between mitosis and binary fission. Identify at least one difference, and explain why it is significant.

Answers

Binary fission is a method of asexual reproduction which single-celled organisms, usually prokaryotes, use to create a copy of themselves.
Mitosis is cell division that results in two identical daughter cells and is primarily used for growth of an organism

The difference between mitosis and binary fission is that while mitosis occurs in eukaryotes and binary fission occurs in prokaryotes.

Mitosis and binary fission are forms of cell division that duplicate cells. Binary fission occurs in prokaryotes which are the cells that do not contain a nucleus.

On the other hand, mitosis occurs among the eukaryotes which are the cells that have a nucleus. Also, binary fission doesn't include spindle formation in its process which makes it faster than mitosis.

Read related link on:

https://brainly.com/question/20537366

3. What does natural selection favor?

O genotypes

O beneficial traits

O all offspring

O extreme phenotypes

Answers

Answer:

beneficial traits

Explanation:

Having beneficial traits leads to being more likely to survive and reproduce, which is the goal of natural selection and survival.

Answer:

I hope this helps.

Explanation:

can oxygen diffuse across the cell membrane?

Answers

Answer:

Water, carbon dioxide, and oxygen are among the few simple molecules that can cross the cell membrane by diffusion or a type of diffusion known as osmosis. diffusion is one of the principal method of movement of substances within sales, as well as the method for essential small molecules to cross the cell membrane.

Explanation:

Hope this helped Mark BRAINLIEST!!!

what is hail stones?why is oxygen ​

Answers

Answer:

hailstones --> Hail is a type of precipitation, or water in the atmosphere. Hail is formed when drops of water freeze together in the cold upper regions of thunderstorm clouds. These chunks of ice are called hailstones. Most hailstones measure between 5 millimeters and 15 centimeters in diameter, and can be round or jagged.

i am sorry i can not answer the oxygen question because it is not all there.

*HELP ASAP* 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.

Answers

Answer:

Determining a substance's physical or chemical identity. What are the two main requirements for identification? The adoption of testing procedures that give characteristic results for specific standard materials and the number and type of tests needed to identify a substance to exclude all other substances.

Answer:

The adoption of testing procedures that give characteristic results for specific standard materials and the number and type of tests needed to identify a substance to exclude all other substances.

Explanation:

This makes a water molecule a ___ which allows for other water molecules to "stick" together
A . non-polar molecule
B. ionic molecule
C. polar molecule

Answers

B ionic molecule should be the answer

Answer:

Polar molecule

Explanation:

<3

16
Type the correct answer in the box.
genetic possibilities from independent assortment of its single gamete.
An organism with five pairs of chromosomes can have

Answers

A diploid organism with five pairs of chromosomes can have 2^5 = 32 possible gamete combinations. It is due to random assortment.

Gamete combinations and random assortment

A gamete is a germinal cell, which contains only one set of chromosomes in diploid organisms.

Random assortment refers to the random separation of homo-logous chromosomes during meiosis.

The random assortment is known to increase genetic variation by increasing the number of possible genetic combinations.

Learn more about random assortment here:

https://brainly.com/question/6484528

During meiosis, which of the following allows for variations in alleles in the gametes
formed?
A) homologous chromosomes stay together
B)chromosome crossover
C)daughter cells identical to parent cells
D)Genetic drift

Answers

Answer: B

Explanation:


Which element listed in the table above has an atomic mass of 79?

Answers

Answer: selenium Hope it helps

Explanation:

What were the sources of genetic variation in the population?

Answers

Answer:That is, the fraction 48 can be converted to decimal by dividing 4 by 8 . It can be converted to percent by multiplying the3 this is kne f3rcdwecdecfefvrgbvgrbv

Explanation:

and this is sound nba moruf  nba mdidd

Here is a model of Earth's yearly orbit around the Sun. In this model, the names of the seasons apply only to the northern hemisphere, Seasons in the Northern Hemisphere Equinox March 20 or 21 Solstice June 20,21, Spring Winter Summer Autumn Solstice December 21 or 22 Equinox s September 22 or 23 Examine the model, and think about how it would be different for the southern hemisphere. What causes the southern hemisphere to experience summer? A. Earth's north pole is tilted toward the Sun. B. Earth's axis and its equator are at different angles. C. Earth's axis and its orbit plane are at different angles. D. Earth's south pole is tilted toward the Sun.​

Answers

Answer:

D

Explanation:

Answer:D

Explanation:

Which of the following statements is false?

A. Disruptions in an ecosystem are normal and natural changes.

B. Disruptions in an ecosystem are only caused by tornadoes, hurricanes, and floods.

C. Disruptions in an ecosystem are caused by both human activity and environmental disturbances.

D. Ecosystems are complex, interactive systems that include both biotic and abiotic components of the environment.​

Answers

Answer:B

Explanation:

Common sense ‍♀️

Answer:

c

Explanation:

humans can also disrupt the ecosystem as well as natural causes

How does blood travel from your heart to your limbs, such as your arms and legs?

A
through veins

B
through capillaries

C
through arteries

D
through carbon dioxide

Answers

Answer:

A

Explanation:

I'm not completley sure but veins go to every location in your body while capillaries and arteries are in designated areas.

Answer:

c

Explanation:

Trace the pathway of blood flow beginning with superior and inferior vena cava. Also, indicate what
kind of blood is contained in each part. (no links or I'll report

Answers

Answer:

look in the photo online it shows hope it helps

Explanation:

Other Questions
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