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Morgarella [4.7K]
3 years ago
11

During periods of vigorous physical activity, a person's breathing and heart rates increase. This enables the cells of the body

to perform more efficiently because it helps the cells to
Biology
2 answers:
Mars2501 [29]3 years ago
7 0

Answer:

Remove the metabolic waste quickly

Explanation:

The increased breathing rate ensures intake of oxygen into the body while the increased heart rate leads to increased oxygen supply to the muscles. The oxygen serves to remove the metabolic waste (for example: carbon dioxide) produced during muscle contraction and thereby, enables the cells of the body to perform more efficiently.

Sati [7]3 years ago
4 0
Activate,cells can be classified by their activity.For example fat cells are one of the least active cells and it's hard to activate them;that's why it's hard to lose weight.The least active cells are bone (aka bone marrow cells) that are never active unless there's a fracture.Cells can also be classified by the amount of water they carry and their age.So when you're doing a lot of physical activity your heart rate and breathing increases because your cells are more active.
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Damage to sensory receptor cells would most likely result in ________. I. confusion of visual and auditory input II. inaccurate
MatroZZZ [7]

Answer:

The correct answer is: None of the above. The accurate answer is: Problem or inability in detecting the sensory information.

Explanation:

  • Sensory receptor cells form the part of the sensory epithelial layer that are present in the form of a lining in all sensory organs.
  • These sensory cells possess some specialised receptor molecules, usually on the surface of the cells, that can sense different types of sensory signals like light, in case of eyes, smell is case of nose, taste in case of tongue and sound in case of ears.
  • Any damage caused to these cells will adversely affect their capability to perceive or receive or detect the sensory signals.
  • Option I is incorrect because sensory cells are not only present in the eyes and ears but also in nose, tongue, skin. The activity of the sensory cells of one organ is independent of the activity of sensory cells of other organs hence, damage to the sensory cells of one organ will not create any confusion in different sensory inputs.
  • Option II is incorrect because integration of all the sensory impulses occur in the brain after the impulse has been received and detected by multiple sensory receptor cells and send to the brain through the sensory neurons.
8 0
3 years ago
Artificial selection has the greatest impact on society by providing which of the following?
Licemer1 [7]

Answer:

Improved food sources

Explanation:

Artificial selection is also known as selective breeding. Its a deliberate process of breeding plants and animals for better breeds.

It's also called genetic engineering.

This in a way impacts the society positively as crops with better yield are produced. Example is wheat that has more grain or in animals, cow that produces more milk.

6 0
3 years ago
What is a basic requirement of a scientific hypothesis must have?
Helen [10]
A scientific hypothesis must be testable and yield results. It must state the intended or predicted result of the experiment
5 0
3 years ago
Manufacturing recombinant dna molecules involves cutting a gene from its normal location, inserting it into a circular piece of
Alex_Xolod [135]
Answer: Plasmid.
A plasmid is a small DNA molecule within a bacteria cell that is separated from the chromosomal DNA and can replicate independently. Through Recombinant DNA, we can insert a gene that we want to see replicated in the plasmid, and when the bacteria multiplies, which it does often, we will obtain a lot of copies of  interest gene.
4 0
3 years ago
How many kcal does a food item containing 20 grams of carbohydrate provide?
NISA [10]

Answer:

b. 80

Explanation:

There are about 4 calories per gram of carbohydrates. As such, if 20 grams of carbohydrate are provided, simply multiply 4 calories per gram with the total amount of grams of carbohydrates.

<em>20 grams of carbohydrates</em> x <em>4 calories per gram of carbohydrates</em> = 80 calories total.

Learn more, here:

brainly.com/question/13584986

3 0
1 year ago
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