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fredd [130]
3 years ago
10

How does heart rate change during and after an exercise is performed for two different periods of time?

Biology
1 answer:
andrew-mc [135]3 years ago
8 0

Answer:

During exercise, your heart typically beats faster so that more blood gets out to your body. Your heart can also increase its stroke volume by pumping more forcefully or increasing the amount of blood that fills the left ventricle before it pumps.

Explanation:

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Which of the following has the fewest taste receptors?
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Answer:

filiform papillae

Explanation:

The filiform papillae, also called conical papillae, are sensory receptors distributed on two thirds of the lingual dorsum. They are the most abundant papillae on the surface of the tongue and are not associated with taste reception because they have the smallest number of taste receptors.

These papillae are arranged fairly evenly in rows parallel to the central groove of the tongue, especially in the center and back. These papillae are made up of connective tissue and an epithelium that expresses keratin, a protein present in people's skin, hair and nails.

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3 years ago
Which one of the following is not part of a nucleotide?
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Answer:phospholipids is not a part

Explanation:

4 0
2 years ago
In the cell, energy that drives endergonic reactions is often obtained from
IRISSAK [1]

Answer: B) energy released from exergonic reactions.  

Explanation:

Cell metabolism is the set of reactions that occur in the cellular environment to synthesize or degrade biomolecules to produce energy. Synthesis metabolism of biomolecules is known as anabolic (anabolism) and catabolic degradation (catabolism).

Endergonic reaction (product has more energy than reagents) and requires energy to occur. Anabolism occurs when the cell has sufficient energy or substrate. Catabolism, in turn, occurs in situations in which the body needs energy, such as between meals and fasting.

The reactions of anabolism and catabolism are opposite but occur in an articulated manner, allowing the maximization of available energy. Thus, while catabolism occurs spontaneously, an exergonic reaction with ATP production, anabolism is non-spontaneous, or endergonic, requiring energy to occur. In other words energy that drives endergonic reactions is often obtained from B) energy released from exergonic reactions.

5 0
4 years ago
All cells exhibit basic structural similarities. The general plan of cellular organization varies between different organisms, b
kotegsom [21]

Answer:

All cells exhibit basic structural similarities. The general plan of cellular organization varies between different organisms, but despite these modifications, all cells resemble one another in certain fundamental ways. Match each description with a feature. separates contents of cell from surroundings made up of contains sugars, salts, and amino acids contains prokaryotic DNA contains eukaryotic DNA matrix?

1. Prokaryotic and eukaryotic cells both has a nucloid/nucleus, organelles, cell membrane, contains ribosomes, has cytoplasm

2. Nucleus; contains eukaryotic DNA

3; Nucloid; contains prokaryotic DNA

4; Cytoplasm; semi fluid matrix, contains sugars salt and amino acids

Explanation:

The cell from latin cella, meaning "small room" is the basic structural, functional and biological units of all known organisms. A cell is the smallest units of life and they are often called the building blocks of life the study of cell is called cytology. cells contains cytoplasm enclosed within a membrane which contains many biomolecules such as potein and nucleic acids. most plants and animal cells are only visible under a microscope with dimensions between 1 and 100 micrometers.

8 0
3 years ago
1. Skin cells-
irina [24]

Answer:

these are all correct

Explanation:

i just took the quick check

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