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lions [1.4K]
4 years ago
12

Genetic variation, provided through sexual reproduction, offers more opportunity for offspring to survive in changing environmen

ts. What two aspects of meiosis provide sources of such variation?A. Mutation and fertilizationB. Crossing over and allelic exclusionC. Segregation and independent assortmentD. Crossing over and independent assortment of chromosomes
Biology
1 answer:
Phoenix [80]4 years ago
7 0

Answer:

Option D.

Explanation:

Crossing over is an important characteristic of meiosis which provides the genetic variation and various allelic combinations present in the offspring. Hence the answer is option D.

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Please place the following vessels in the correct order to represent the arterial circulation leading up to the glomerulus.
Ymorist [56]

The following vessels are connected as below:

aorta ->renal arteries ->segmental arteries ->interlobular arteries ->arcuate arteries ->cortical radiata ->afferent arteries ->glomerulus.

1) aorta : arises from heart which carry blood from heart to the rest of the body

2) renal artery :it arises from the aorta which carry blood to kidney .it carry unfiltered blood .

3)segmental arteries : it arises from renal artery .it has  5 branches or segments.

4)interlobular arteries : it arises from segmental arteries. the interlobular arteries pass directly outward between the medullary rays to reach the fibrous tunic ,where they end in the capillary network of this part.

5)Arcuate arteries: it arises from interlobular arteries .it is also known as arciform arteries, are vessels of the renal circulation. they are located at the border of the renal cortex and renal medulla.

6) cortical radiata: it arises  from arcuate arteries.

7) afferent arteries: it arises from interlobular arteries and also connects to glomerulus. they are a group of blood vessels that supply the nephrons in many excretory systems .they play a important role in regulation of blood vessels.

8) glomerulus : it connects from afferent arteries.it is the filtering unit of kidney ,is a specialised bundle of capillaries that are uniquely situated between two resistance vessels.

Disclaimer: the given question is incomplete means it contains incomplete data .the correct question is given below.

Question: Please Place The Following Vessels In The Correct Order To Represent The Arterial Circulation Leading Up To The Glomerulus. Aorta Interlobar Artery Segmental Artery Afferent Arteriole Cortical Radiate Renal Artery Arcuate Artery Glomerulus

Please place the following vessels in the correct order to represent the arterial circulation leading up to the glomerulus.

Aorta

Interlobar artery

Segmental artery

Afferent arteriole

Cortical radiate

Renal artery

Arcuate artery

Glomerulus

Learn more about blood vessels here :

brainly.com/question/11763276

#SPJ4

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2 years ago
Anybody want free brainlist and 15 points??
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Answer:

me!    PLZZZZ

Explanation:

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3 years ago
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What might occur when mitosis is not stopped or occurs quickly due to the presence of cancer.  
leva [86]
In a cell, there are several parts of it that are there to stop this from happening. Cancerous cells do not have the genetic code to stop growing and reproducing. A regular cell will actually destroy itself it there is a mutation. If it does not get destroyed, it could potentially be tumorous, then it could eventually be cancerous.

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3 years ago
Fill in the blanks to make the following statement true
Arisa [49]

Answer:An inherited, natural selection.

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