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Zinaida [17]
3 years ago
9

Over the past century, several scientists around the world have made the following observations:

Biology
1 answer:
prohojiy [21]3 years ago
3 0

Mitochondria and plastids were once free living bacteria that underwent endosymbiosis inside a eukaryotic cell, which helped with cell respiration

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What is the main stimulus for bile secretion from the gallbladder?
Neporo4naja [7]
The bile is produced by the liver and the gallblader only serves as storage between meals. The main stimulus for the release of bile from the gallblader comes from the nervous system,after food is put in the mouth.
5 0
3 years ago
Explain why competition between individual of the same species is more often more intense than competition between memories of d
puteri [66]
One big reason for this is because individuals of the same species often have to fight over shared resources (this means shared food and shared environment).

Because they fight over a limited amount of space and food, competition between individuals within one species can be present and very tough.

On the other hand, having members of different species also possibly means different territories and different food sources. A lion has no quarrel with dolphins, while it can have a lot of fights with lions from different prides (large group of lions).
8 0
3 years ago
Photosynthesis is undergone by plants to produce a usable food source. Which of
arlik [135]

Answer:

Chloroplast

Explanation:

Chloroplasts are organelles found in green plants. They are the sites of photosynthesis. Chloroplasts contain chlorophyll, a photosynthetic pigment that traps light energy. This energy is used to power a series of reactions that convert water and carbon dioxide into sugars.

4 0
3 years ago
How does the nurse apply the identity versus role confusion stage in the care delivery of an adolescent ? select all that apply?
Mrrafil [7]
Childbirth is scary enough for adult women, let alone an uneducated adolescent (depending on age). all women in labor need a coach, spouse or parent to comfort them through the delivery process to let the future mother know these stages are normal.
7 0
3 years ago
.(choose all which
11111nata11111 [884]

Answer:

Myogenic mechanisms

Hormones

Sympathetic nervous system  

Explanation:

Myogenic mechanisms work in the arterioles that serve the glomerulus.

They cause the smooth muscle cells in the arterioles to contract and relax in response to blood pressure changes.

The sympathetic nervous system increases blood flow through the kidneys during resting conditions.

At times of stress, it decreases blood flow through the kidneys, making it more available to the rest of the body.

The hormones angiotensin and aldosterone regulate blood volume by controlling retention of Na⁺ and water.

C is wrong. The parasympathetic nervous system mainly controls visceral organs such as glands.

6 0
3 years ago
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