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3 years ago

Which of the statements is accurate?

Biology

1 answer:

Zarrin [17]3 years ago

4 0

Answer:

The correct answer is option A.

Explanation:

In amphibians, reptiles and other animals, the circulation is directed in 2 circulation systems. The blood flow through the lungs and then flow back to the heart, is pulmonary circulation and the other is the rest of the body to organs known as systemic circulation. Amphibians have 3 chambered heart in their body that pumps the blood.

Diving reptiles can change the pattern of blood circulation to bypass their lungs when in water.

Thus, the correct answer is option A.

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You are an almond grower and want to determine whether almond size (measured as shelled almond weight) is a heritable trait. A s

inn [45]

Answer: 1. S = 0.77

2. R = 0.14

Explanation:

1. Selection differential is the difference between the population mean and the average of the selected parents. Its symbol is S.

S = mean of selected parents - population mean

S = 6.48 - 5.71

S = 0.77

2. Response to Selection is how much gain you make when crossing over selected parents. Its symbol is R.

R = mean of offspring of selected parents - population mean

R = 5.85 - 5.71

R = 0.14

3. Heritability is, basically, a statistical variable that shows how much the variation in a trait is due to genetic factors. Its symbol is h².

To calculate it, use Breeder's Equation:

R = h²S

$h^{2}=\frac{R}{S}$

$h^{2}=\frac{0.14}{0.77}$

h² = 0.18

4. You would expect the production to be strongly influenced by environment, because heritability lies between 0 and 1. Low heritability means there is low level of resemblance between offspring and parents. As this program heritability is low, the resemblance is small, which means the characteristics are influenced mostly by the enviroment.

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3 years ago

How many chromosomes does each new cell contain after mitosis if the original cell had 52 original cell chromosomes?

quester [9]

If the original cell had 52 chromosomes then the two daughter cells produced would be identical, both with 52 chromosomes

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4 years ago

Read 2 more answers

Someone pls help me with this, bcs i really dont know what’s happening, as im new to Biology

love history [14]

Answer:

they can cause a lot of harm in human body

Explanation:

based on research, a virus is a submicroscopic infectious agent that replicates only inside the living cells of an organism.

Bacteria are a type of biological cell. They constitute a large domain of prokaryotic microorganisms.

and lots more all can do a lot of damage to the human body they can even take someone's life.

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3 years ago

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People who have leukemia, a cancer that affects white blood cells, are often given Cytrabine. This drug inhibits the synthesis o

OLga [1]

People who have leukemia, a cancer that affects white blood cells, are often given Cytrabine. This drug inhibits the synthesis of DNA.

S-phase of cell cycle is most affected by Cytrabine because cytrabine interfers with synthesis of DNA and we know that in S-phase of cell cycle synthesis of DNA takes place.

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4 years ago

I would really appreciate some help with this science question!

jasenka [17]

so you’d need to find the amount of gallons your family uses in 11 minutes and subtract 73000 from that number

i used the same formula, came up with 80300 gallons a year, and subtracted 73000 from it to get

7300 gallons are saved by reducing showering time by one minute

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3 years ago