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SpyIntel [72]
3 years ago
15

What is am example of external ?

Biology
1 answer:
statuscvo [17]3 years ago
3 0

between selfish and selfless impulses.


mark brainliest  :)

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1 pts
sladkih [1.3K]
The answer is fog because it thick smoke
5 0
3 years ago
Suppose the interior of the thylakoids of isolated chloroplasts were made acidic and then transferred in the dark to a pH-8 solu
Olenka [21]

Answer:

The correct answer will be option-A

Explanation:

Thylakoid is the structure in the chloroplast where the light-dependent reaction takes place which forms the ATP and NADPH.

The production of ATP takes place due to the movement of Hydrogen ions across the membrane from the interior or lumen to the stroma of the chloroplast.

If the thylakoid were made acidic that is hydrogen ion concentration increases inside the lumen and then kept in a basic solution where the hydrogen concentration is low then it will lead to generation of a proton gradient.

The generation of the proton gradient will cause the movement of the protons from the lumen to the outside through ATP synthase which will produce ATP.

Thus,  option-A is the correct answer.

7 0
3 years ago
Infection caused by __________ is of greatest concern to pregnant women and those with compromised immune systems.
Anarel [89]

Answer:

<em>Listeria</em>

Explanation:

<em>Listeria</em> causes invasive syndromes such as meningitis, sepsis, and stillbirth in pregnant or immunosuppressed people. It is an intracellular pathogen and affects the persons with deficient cell-mediated immunity. Bacteria from this genus are part of the normal gastrointestinal microbiota in healthy individuals. However, in immunosuppressed individuals, the bacterium uses proteins such as internalin and phospholipase C for invasion, intracellular multiplication, and cell-to-cell spread.

Pregnant women are at the increased risk of infection due to both systemic and local immunological changes that mostly occur during pregnancy. For example, local immunosuppression at the maternal-fetal interface of the placenta may support the intrauterine infection.

5 0
4 years ago
What is a half life in science? urgent
eimsori [14]
The half life is the measure of the time during which half of the atoms of an element are broken down. e.g; if an element has half life of one day. it means that 1 day is the time for the half of the atoms of that element to decay. this term can also be use in biology relating medications. the half life of drugs is the time taken by the drugs to be eliminate from the body.
4 0
3 years ago
The karyotype indicates a problem with chromosome 18. What is the problem and what is the BEST explanation for why it occurred?
Solnce55 [7]
A karyotype views the nucleus of the cell and the inspects the number and the appearance of the chromosomes. This would mean that the nature of the problem could be
<span>A) extra chromosome; insertion 
AND
</span>D) mutated chromosome; crossing over<span />
7 0
3 years ago
Read 2 more answers
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