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faltersainse [42]
3 years ago
5

20 heterozygous purple flowering pea plants are crossed. If purple is dominant over white, what are the expected phenotypic resu

lts?
Biology
1 answer:
Elenna [48]3 years ago
3 0
Let's call the colour alleles C for dominant purple, and c for recessive white.

We have crossed Cc with Cc.  So if we put that in a Punnett square, we'd have a CC, two Cc and a cc.  That would give us a 3:1 ratio of purple to white, so you'd expect 15 purple and 5 white flowers. :)
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From which of the following does the right atrium receive blood?
olga2289 [7]

The right atrium receives blood returning from others parts of the body through the superior vena cava and the inferior vena cava.  

Explanation:

The pathway of circulation begins in the right atrium which receives the carbon dioxide-rich deoxygenated blood returning through the systemic circulation.  

The deoxygenated blood from regions superior to the heart, i.e., the head, neck, shoulder areas are collected through the superior vena cava and that from the parts inferior or lower to the heart like visceral organs, extremities, trunk, hip etc are brought through the inferior vena cava.

Both these venous systems (superior and inferior) fill the right atrium.

The right atrium then pumps the deoxygenated blood to the right ventricle via the tricuspid valve.

The right atrium is filled with blood during diastole.

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yulyashka [42]
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3 years ago
What internal body parts help an owl hunt??
mars1129 [50]

Answer:

Talons

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Talons are an owl's primary weapon for catching its prey. When an owl catches its prey, two of its talons go forward and two go backwards to ensure that when the prey is caught, it cannot escape.

4 0
3 years ago
A person is told to take 1.25 mg of vitamin d daily. how many 0.125-mg tablets should this person take?
vovikov84 [41]
This is a simple calculation involving drug doses.

The solution is as follows:

(0.125 mg/tablet)(n) = 1.25 mg
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7 0
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RSB [31]

Answer:

24 hours

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Role of air temperature: Plant respiration occurs 24 hours per day, but night respiration is more evident since the photosynthesis process ceases.

7 0
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