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luda_lava [24]
2 years ago
13

What do gasses use to get across the cell membrane

Biology
1 answer:
andreev551 [17]2 years ago
8 0

Answer:

They use oxygen.!

Explanation:

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Use the information from Parts B and C to solve this problem. If a rabbit of genotype AaBb is bred to a rabbit of genotype AaBb,
Kipish [7]

The question is incomplete and the complete question is

Suppose that ear length in rabbits is controlled by two additive genes, each of which has two alleles. A true-breeding female (aabb) with 6-cm ears is mated to a true-breeding male (AABB) with 16-cm ears.

Answer:

AABb or AaBB

Explanation:

We know that,

aabb genotype - 6 cm

AABB genotype- 16-cm

To calculate the length of earlobe contributed by each allele in a genotype is :

1. length of aabb/4 or 6/4= 1.5 cm (a and b contribute for 1.5 cm each)

2. Length of AABB/4 or 16/4= 4 cm (A and B contribute for 4 cm each)

Now to have the earlobe to be 13.5 cm long then the genotype must be

13.5 = 4+4+4+1.5 or A+A+B+b or A+a+B+B

Therefore, the genotype will be-either AABb or AaBB

3 0
3 years ago
The phase in the cardiac cycle when the mitral valve is closed and the aortic valve is open is the A) atrial systole. B) early d
KengaRu [80]

The phase in the cardiac cycle when the mitral valve is closed and the aortic valve is open is the systolic ejection phase (Option D). It is the second phase of the ventricular systole.

The cardiac cycle is a sequence of contraction and relaxation of the atria and ventricles to pump blood throughout the body.

This cycle (cardiac cycle) can be divided into two major periods: diastole and systole.

The diastole is when the heart relaxes and refills with blood, while the systole is when the heart contracts and pumps blood.

The systolic ejection phase is the second phase of the ventricular systole where blood is pumped from the ventricle.

Learn more in:

brainly.com/question/4224481

5 0
3 years ago
Which layer of skin contains living cells, is vascularized, and lies directly above the hypodermis?
kicyunya [14]

Answer:

Dermis.

Explanation:

The skin is the outer most protective layer that differ in structure and composition of the vertebrates. The main function of skin is the regualtion, sensation and protection of the organism.

The skin is divided into different layer : epidermis, basement membrane dermis,  and subcutaneous tissue. Only the dermis layer contains the living cells that are highly vascularized and present beneath the hypodermis. Dermis layer protect the body from the stress and strain.

Thus, the correct answer is option (2).

6 0
3 years ago
Which of the following defines an ecological succession
miv72 [106K]

Answer:Ecological succession is the process that describes how the structure of a biological community (that is, an interacting group of various species in a desert, forest, grassland, marine environment, and so on) changes over time. The structure of this community becomes more complex as new species arrive on the scene.

Explanation:

4 0
2 years ago
HeLP! HeLp ajanjbhdwfbhfrehgbfehrjbger
fredd [130]
Hope this helps. Heiendisksosnsixnsj

6 0
3 years ago
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