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Anna [14]
2 years ago
6

Summarize symbiosis.

Biology
1 answer:
Illusion [34]2 years ago
5 0

Answer:

Symbiosis is a close relationship between two species in which at least one species benefits. Mutualism is a symbiotic relationship in which both species benefit. Commensalism is a symbiotic relationship in which one species benefits while the other species is not affected.

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stiv31 [10]

Answer:

I think its D

Explanation:

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Changes in arterial ph can modify respiration rate and rhythm even when carbon dioxide and oxygen levels are normal. changes in
Evgesh-ka [11]
The answer is

a. True
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Plot blood pressure against time for one cardiac cycle in humans, drawing separate lines for the pressure in the aorta, the left
galben [10]

The expansion of the aorta causes a rise in blood volume and blood pressure.

<h3>What is the cardiac cycle?</h3>

Heartbeat pattern The cardiac cycle includes all of the physiological processes connected to a single pulse, including the electrical, muscular (pressures and volumes), sensory, and other activities. During each cardiac cycle, both ventricles and atria beat alternately.

<h3>Briefing:</h3>

The human heart's cardiac cycle includes two phases: ventricular relaxation and atrial contraction. The right ventricle has low pressure when the right ventricular systolic pressure is frequently less than 30 mm Hg. The left ventricle has a thicker wall and more muscle mass than the right ventricle as a result of the blood flowing at a high pressure. The expansion of the aorta causes a rise in blood volume and blood pressure.

To know more about Cardiac Cycle visit:

brainly.com/question/14797546

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5 0
1 year ago
5) Strawberry plant clones are given different amounts of water for a 3-week period. First strawberry plant
Natalka [10]

Answer:

IV: Amount of water

DV: Height of the strawberry plant

CG: The fourth strawberry plant

Con: Type of strawberry plant, type of water given, type of soil used, amont of sunlight.

Explanation:

When you say <u>independent variable</u> this is the variable in a study that you change or manipulate. In this case, the amount of water is the one that is changing per plant. This is done to test whether this variable will have an effect on another.

The <u>dependent variable</u> is the variable that is not changed by the researcher or scientist. The changes in this variable is what you'd like to take note of. The changes that the dependent variable "depends" on the indepedent variable. This means that the dependent variable is the one affected. In this case, it would be the height.

<u>Control Group </u>is the group that you are not going to test with the Independent variable. We do this to determine or rule out any other intervening variables that may cause a change. If the result of the study would be that there is not difference between the other group and the control group, then that would mean that the independent variable may not have had any effect on the dependent variable. Another purpose to a control group is to provide also a baseline to track changes.

<u>Controlled variables </u>are variables that are kept constant. This is also to eliminate or prevent other variables from interfering with the results. It ensures that only the independent variable is what is causing the change. If there were no controls to this particular experiment, you will not be able to properly conclude that it is indeed the amount of water that is causing the change.

7 0
3 years ago
The third level of cell organization is the _____.
Tanya [424]

The third level of cell organization is the organism level


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3 years ago
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