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katrin2010 [14]
3 years ago
15

What part of a cactus does photosynthesis occur?

Biology
1 answer:
Vikentia [17]3 years ago
4 0
Like other succulent plants, most cacti<span> employ a special mechanism called "crassulacean acid metabolism" (CAM) as </span>part<span> of </span>photosynthesis<span>. Transpiration, during which carbon dioxide enters the plant and water escapes, </span>does<span> not </span>take place<span> during the day at the same time as </span>photosynthesis<span>, but instead </span>occurs<span> at night.</span>
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BRAINLIESTTTT ASAP!!!
Likurg_2 [28]

<em>Examples of a nonspecific external response to infectious agents and harmful bacteria are the following;</em>

Mucus, saliva, and tears.

They are nonspecific external responses that help to prevent pathogens from entering our bodies.

The specifics contain types of enzymes that break down the bacterial cell walls. An external response of Mucus tends to trap pathogens as well.

7 0
3 years ago
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Based on the anatomical and physiological differences between an infant and an​ adult, which finding would suggest respiratory d
frosja888 [35]

Answer: Excessive movements of the walls of the  abdomen

Basically babies belly breathe, that is they undergo abdominal pattern of respiration( instead of the abdomino- thoracic pattern in  adult), through their abdomen.

<u>This is because,  their thoracic walls are not fully functional to undergo  the normal adult mechanisms  of breathing</u>.

<u>The ribs are short in length due to incomplete ossification. They curve out wards, at low angle, their sternum, is shaped horizontally.</u>

These features reduce the activities   of the inter coastal muscles and the thoracic cage  in the mechanism of  infants breathing,compare to the long ribs, obliquely shaped rib cage,  with lower  sternum  of  adult which  permit the  abdominal-thoracic  breathing pattern.

Therefore ,when the diaphragm distends during breathing ,its movement pushes the organs of the abdomen down; because infants have rapid respiratory  rates, the distends created  rapid  expansion and contraction of the walls of the abdomen to gain enough abdominal pressure.

This together with the movement of  organs of the abdomen   from  the  pathways of diaphragm  created the  excessive  movements of the abdominal walls. This rapid abdominal wall movements creates discomfort and distress for the infant during this mechanisms.

Explanation:

7 0
3 years ago
Chromosome 17 is made of over _ million base pairs
marissa [1.9K]

I think it's 83 million base pairs.

5 0
3 years ago
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The genetic code is thought to have evolved to maximize genetic stability by minimizing the effect on protein function of most s
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Answer:

The six codons for arginine are the following:

GCA, GCG, GCT, GCC, TCT, TCC

A) Considering the individual bases in each codon, three mutations are possible at each base position. Hence, 3 × 3 × 6 = 54 mutations are possible.

B) Considering the mutations at the 3rd base: 3 × 4 + 1 × 2 = 14 of these mutations are silent mutations.

C) Lysine codons are the following:

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There are two possible mutations that can give a lys codon.

Hope that answers the question, have a great day!

8 0
3 years ago
Which of the following is NOT a stage of the Cell Cycle (somatic cells)?
mestny [16]

Answer:

Meiosis

Explanation:

Only reproductive cells/gametes use meiosis.

7 0
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