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Lynna [10]
3 years ago
13

13

Biology
1 answer:
hram777 [196]3 years ago
6 0
The amoeba is a eukaryote whose bodies most often consist of a single cell.
The cells of amoebae, like those of other eukaryotes, possess certain characteristic features. For example:-
1. Their cytoplasm and cellular contents are enclosed within a cell membrane.
2. Their DNA is packaged into a central cellular compartment called the nucleus.
3. They contain specialized structures called organelles, which execute a range of cellular functions including energy production and protein transport.

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Can anyone answer the one with the explain
Katena32 [7]

Answer:

the yellow one right

Explanation:

7 0
2 years ago
1. Suppose that you take your boat offshore for a day of deep-sea fishing. You drop anchor at a supposed ‘hot spot’ and you noti
Mashcka [7]

The swim bladder is more or less an oval, soft-walled pouch located in the abdominal cavity, just below the spinal column. Its shape varies greatly, but the volume is constant between species, most often around 5% of body.

<h3>Day of deep-sea fishing</h3>

1. The volume of your swim bladder when you put it back in the water would be 7.5 liters.

2. The time the fish would float on the surface before the oval could restore neutral buoyancy would be a few seconds.

3. If I were a red blood cell that has just delivered its oxygen to the tail musculature of a mako shark, the route through the circulatory system to eventually reach the mako's swim bladder would be the venous route, like other fish, they have a heart with two chambers, an atrium and a ventricle, and closed circulation.

With this information, we can conclude that the volume of her swim bladder when she was put back in the water would be 7.5 liters.

Learn more about swim bladder in brainly.com/question/22849660

5 0
2 years ago
Anthony ortega was suffering from an accumulation of blood in the pleural cavity. this condition is known as
il63 [147K]
<span>Anthony Ortega was suffering from an accumulation of blood in the pleural cavity. this condition is known as hemothorax. It is <span>characterized by pleural fluid hematocrit values greater than 50% of peripheral blood. The main causes are trauma, iatrogenic factors, malignancy, anticoagulation therapy, pulmonary infarction, and aortic rupture.</span></span>
3 0
3 years ago
Activation of the sympathetic nervous system A. increases salivation and increases blood pressure. B. decreases salivation and i
yaroslaw [1]

Answer:

B. decreases salivation and increases blood pressure

Explanation:

The sympathetic nervous system is part of the autonomous nervous system which controls involuntary responses of the body such as salivation and blood pressure.

The sympathetic nervous system  is majorly responsible for body actions that are produced when threat is perceived. It generates responses referred to as the “fight or flight” response. Examples of such responses include, increased breathing, increased high blood pressure, dilation, decreased salivation, etc.

Activation of the sympathetic nervous system would result in rise in the blood pressure as can be witnessed by someone whose body has perceived a threat or reacting to a stressful situation.

The control of salivary production by the sympathetic nervous system  leads to the release of noradrenaline which acts on certain receptors that results in decrease in the production of saliva. This is evident in a person that is facing a threat also.

8 0
2 years ago
Need help on 12-19 <br> if u don't know don't answer
Bogdan [553]

Answer:

sup bus down totoan  or nle top shootasup bus down totoan  or nle top shootasup bus down totoan  or nle top shoota

Explanation:

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