Protein synthesis occurs as a series of events that begins with DNA in the nucleus and ends with a fully formed and shaped protein molecule. Which of the events in protein
synthesis demonstrates that the expression of genes is a regulated process?
Answer
A An mRNA molecule is transcribed from a section of DNA.
B The mRNA exits the nucleus through nuclear pores.
The mRNA is translated by a ribosome to form a polypeptide strand.
The polypeptide strand is folded into the appropriate shape.
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Answer:

Smoke would make sense but I cant be sure.  Is it a multiple choice question?

(also it could be water from a geyser)

Answer:

If an ecosystem has 1,000,000 kilocalories of energy in the producers only 100,000 kilocalories of energy would be available to the primary consumers.

Explanation:

Answer:

True

Explanation:

Answer: A finding a fossil of a shark in the desert .

Explanation: with fossils we can dna test them and trace them back millions of years . If you find a fossil of a shark in the desert a dna test may be conducted and this can prove the point .

Answer:all to the answers

all Explanation:

Answer: Epididymis

Explanation:

This is where the sperm matures at

Answer: Averge

Explanation:

Answer:

its 10 points but it's fine

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The answer is C

Explanation:

Answer:

I think the answer is C, so sorry if I got it wrong.

Answer:

Because Mercury  and Venus are too close to the Sun and its gravity.

Explanation:

Mercury and Venus do not have moons because of their proximity to the Sun and their specific orbital characteristics.

Both planets are located relatively close to the Sun, and their gravitational interaction with the Sun is strong.

Additionally, their orbits are relatively stable, which means that any small celestial bodies that might have approached them in the past were likely captured by the Sun's gravitational pull or flung out of the solar system.

Unlike outer planets such as Jupiter and Saturn, which have strong gravitational influences and numerous moons, the inner planets like Mercury and Venus have not been conducive to capturing or retaining moons due to their specific orbital dynamics.

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Answer:

I believe the answer is A. Produce their own food.

Hope this helped :)

Answer:

c

Explanation:

According to H-W, a population is in equilibrium if it meets five conditions, and have the same allelic and genotypic frequencies through many generations. 1) Infinite population size / 2) p=0.9 and q=0.1 / 3) 25 cats

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Let us review some theoretical framework about Hardy-Weinberg equilibrium, while we answer the questions.

⇒ Hardy-Weinberg assumption for a population in equilibrium:

Q1. Identify ONE of the five conditions required for Hardy-Weinberg equilibrium that this population of cats does not meet.

Since this population is composed of two Siamese and three Persian cats, the condition that this population does not meet is infinite population size.

This population is under the effect of genetic drift for being only 5 individuals colonizing an island.                                    

                                           *****************

⇒ According to Hardy-Weinberg, p and q represent the allelic frequencies in a locus, referring to the allelic dominant or recessive forms.  

The genotypic frequencies after one generation are p² (H0m0zyg0us dominant), 2pq (Heter0zyg0us), q² (H0m0zyg0us recessive).  

Populations in H-W equilibrium will get the same allelic frequencies generation after generation.

Being

Q2. If you assume Hardy-Weinberg equilibrium for this population, what would be the frequencies of the two alleles after 10 generations?

Allelic frequencies, f(x), are

If this population is in H-W equilibrium, the allelic frequency will be the same through many generations.

So, after 10 generations, the allelic frequencies will still be p = 0.9 and q = 0.1.

Q3. Knowing that the frequency of the folded ears genotype ff is equal to to the frequency of the f allele squared (0.1 x 0.1), how many cats would have folded ears if after 10 generations there are 2,500 cats on the island?

We know that,

To get the number of individuals with folded phenotype, we should get the phenotypic frequency, which equals the genotypic frequency because it is the recessive phenotype.

Genotypic and Phenotypic Frequency

Now that we have the phenotypic frequency, we just need to multiply it by the total number of individuals in the population, N.

N = 2500 individuals

So, after 10 generations and a population size of 2500 cats, there will be 25 folded-eared individuals.

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Answer:

Hope this helps!!! Pls mark brainiest!!

Explanation:

Name: Elaina King

Date: 12/4/2020

1. The muscular system is composed of specialized cells called muscle fibers. Their predominant function is contractibility. Muscles, attached to bones or internal organs and blood vessels, are responsible for movement. Nearly all movement in the body is the result of muscle contraction. Exceptions to this are the action of cilia, the flagellum on sperm cells, and amoeboid movement of some white blood cells.

2.

Skeletal: It is a form of striated muscle tissue which is under the voluntary control of the somatic nervous system. Most skeletal muscles are attached to bones by bundles of collagen fibers known as tendons.

Smooth: composed of sheets or strands of smooth muscle cells. These cells have fibers of actin and myosin which run through the cell and are supported by a framework of other proteins.

Cardiac: It is an involuntary, striated muscle that constitutes the main tissue of the walls of the heart.

3. Voluntary muscles or striated muscles are those which work according to the one’s desire or are under control, whereas Involuntary muscles are not under one’s control. Biceps muscles, respiratory, alimentary and urogenital tracts are the places where voluntary muscles are found, while abdominal muscles, locomotory muscles, middle ear muscles, Diaphragm are the examples of the involuntary muscles.

4.

1st pic: Cardiac

2nd pic: smooth

3rd: Skeletal

5. Skeletal muscle is metabolically and mechanically maladapted to working as the muscle that causes the heart beat. The cardiac muscle has a much higher capacity to extract oxygen from the blood than any skeletal muscle with a higher mitochondrial density so the skeletal muscle heart would, at rest, be working at very near to its metabolic limits. This would not allow the body to do much exercise. The characteristics of skeletal muscle contraction are not the same as the characteristics of cardiac muscle contraction. Cardiac muscle is essentially a network of muscle fibers where most of the signal to contract is propagated by the fibers themselves and the contraction of the whole muscle occurs. The heart beat entails the whole heart contracting at a slower rate of contraction than skeletal muscle. I would conjecture that the relatively slow concentric beat of the whole heart would be better for pumping fluid than the more rapid beat of skeletal muscle. Nerves stimulate any number of motor units in skeletal muscle which, depending on how many nerves are activated, will allow fine gradations in muscle strength. This kind of control would not be necessary for the heart , so inefficient.

Answer:

n The Diary of Anne Frank, the conflict between Peter and Mr. Dussel about Mr. Dussel’s unkind words to Peter’s mother supports the theme that

wartime often brings out the worst in people.

children always tend to defend their parents.

difficult times tend to tear friendships apart.

people are not always as they appear to be.

Explanation:

n The Diary of Anne Frank, the conflict between Peter and Mr. Dussel about Mr. Dussel’s unkind words to Peter’s mother supports the theme that

wartime often brings out the worst in people.

children always tend to defend their parents.

difficult times tend to tear friendships apart.

people are not always as they appear to be.

Answer: C

Explanation:

Answer:

C

Explanation:

bc i did it and got it correct:)

A window screen is an example of selective permeability.  

• Selective permeability is a characteristic and function of the cell membrane, which plays an important role in sustaining homeostasis by monitoring the passage of certain substances while inhibiting others from invading the cell.  

• Of the given options, a window screen is an example of selective permeability.  

• A window screen is also known as the bug screen, insect screen, wire mesh, or fly screen is created to cover the window opening.  

• It is generally a mesh formed of fiberglass, metal, pieces of plastics, plastic wire, and pieces of metal or wood.  

• It functions to prevent the entry of bugs, birds, debris, and other animals into the building, however, it does not prevent the entry of fresh air.  

Thus, a window screen is an example of selective permeability.

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Answer: B.

Explanation:

A large vacuole in each cell because vacuole is only present in plant cells and not animal cells.

Explanation: Scientists believe the increased risk is due to the extra chromosome, chromosome 21, that causes Down syndrome. Persons born with Down syndrome have three copies (instead of the normal two copies) of this chromosome.

The giant impact theory — the idea that a catastrophic collision about 4.5 billion years ago between Earth and a protoplanet about half Earth's size created a disk of molten rock, gas and debris that consolidated to form the moon — was first set forth in the mid-1970s.

The most normally invoked grounds for lunar formation maintain that a giant protoplanet is sometimes called Theia.

When the Chemical differentiation and crystallization delivered dense material that sank to the bottom of the lunar magma ocean and a spirited crust that created the lunar highlands.

The numerous commonly invoked justification for lunar formation holds that a giant protoplanet, sometimes called Theia, struck the recently formed Earth 4.5 billion years heretofore and formed a cloud of debris that fast coalesced into the moon.

But that hypothesis has mourned from a nagging flaw. Simulations of moon-forming crashes have shown Theia would have stood as the immediate donor of lunar material.

But commentaries of Apollo moon rocks have authenticated that the moon appears in many ways a chemical clone of Earth, not Theia.

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Answer:

A) Cytoplasm

B) Chloroplast

C)  Plasma membrane

D) Cell membrane

E) Smooth endoplasmic reticulum & Rough endoplasmic reticulum

F) Cell wall

Explanation:

Look at the picture below

Answer: LINER SIZE TRANSPLANT WEEK FINISH GROW WEEKS. PPP. PPP. PPP. PPP ... NEW Red Garnet Height: 6 to 8 in. (15 to 20 cm) ...

Explanation:

Answer:

increased genetic variation.

Explanation: increased genetic variation

Answer:

A.) Dinosaur Bone

should be the answer

Answer:

it is A

Explanation:

the person above me is right 'life science Cumulative Exam2021'

Answer: off: lac repressor, on: CAP

Explanation:

Answer:

Habitat

Explanation:

Definition: he natural home or environment of an animal, plant, or other organism.

"wild chimps in their natural habitat"

Answer:

B.

Explanation: