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3 years ago

4. Which of the following describes a long term effect of exercise on breathing rate?

Biology

1 answer:

igor_vitrenko [27]3 years ago

7 0

Answer:

Effects of exercise on breathing

During exercise there is an increase in physical activity and muscle cells respire more than they do when the body is at rest.

Woman jogging along a tree-lined path in a park.Exercise increases the rate and depth of breathing

The heart rate increases during exercise. The rate and depth of breathing increases - this makes sure that more oxygen is absorbed into the blood, and more carbon dioxide is removed from it.

The rate of breathing can be measured by counting the number of breaths in one minute. The depth of breathing can be measured using a spirometer (a device that measures the volume of air inhaled and exhaled).

To investigate the effects of exercise on breathing, record the rate of breathing for a few minutes when the person is at rest. After they do some exercise, record their rate of breathing every minute until it returns to the normal resting value.

Explanation:

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What type of reproduction occurs when animals produce cloned offspring

gtnhenbr [62]

This is called asexual reproduction.

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3 years ago

HELP i need to create a story about cells and their functions the organelles are Cell membrane

Katen [24]

Answer:

More than 8.7 million species are living on the planet. Every single species is composed of a cell and it includes both single-celled and multicellular organisms.

The cells provide shape, structure and carries out different types of functions to keep the entire system active. The cell contains different functional structures which are collectively called Organelles, and they are involved in various cellular functions.

Also Read: Difference between organ and organelle

Let us learn more in detail about the different types and functions of Cell Organelles.

Table of Contents

What are Cell Organelles?

List of Cell Organelles and their Functions

Plasma Membrane

Cytoplasm

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5 0

3 years ago

Determine whether each of the following is a characteristic of the life cycle of a seed plant, a seedless plant, or both. Double

Gnoma [55]

Double fertilization-plants with seeds (flowering plants), two male gametes joining with female gametophyte

Gametophyte generation-both (haploid, sexual stage stage-gametophyte, and the diploid stage that produces spores – sporophyte)

Endosperm formed-plants with seed because it is a tissue formed inside the seed which surrounds the embryo and provides nutrition

Mitosis-both (mitosis occurres in spores)

Spores develop into gametophytes-both but, in seedless plants sporophyte produces spores that will develop into a new organism (multicellular gametophyte) using mitosis, while spores of seed plants are produced internally and develop into more complex structures.

7 0

3 years ago

3. In centaurs, the allele for curly tails (T) is incompletely dominant to the allele for straight tails (t). The hybrid genotyp

Reptile [31]

Answer:

a. Determine the allele frequencies of:

f(T) = 0.485 ≅ 0.48

f(t) = 0.515 ≅ 0.52

b. Determine the genotype frequencies of the exposed generation

F (TT) = 0.21
F (Tt) = 0.55
F (tt) = 0.24

the genotype frequencies of the next generation

F(TT) = 0.23
F(Tt) = 0.5
F(tt) = 0.27

Explanation:

Due to technical problems, you will find the complete answer and explanation in the attached files

Download pdf

3 0

3 years ago

What is the difference between a lake and a pond? a. A pond is smaller in size and does not have a temperature gradient. b. A po

Ksju [112]

Answer:

I think the answer is A.

Explanation:

Ponds and lakes are both inland bodies of freshwater that contain living creatures. Lakes are normally much deeper than ponds and have a larger surface area. ... All the water in a pond is in the photic zone, meaning ponds are shallow enough to allow sunlight to reach the bottom.

The yearly process known as thermal stratification. A pond that is thermally stratified simply means that there is a noticeable temperature gradient as the water gets deeper. You may have noticed this in summer while swimming.

6 0

3 years ago