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3 years ago

What statement best illustrates how an organism maintains homeostasis ?

Biology

2 answers:

Otrada [13]3 years ago

7 0

Answer: B) Desert pack rats are active at night to conserve water.

Explanation:

Homeostasis is the ability or quality of the body to maintain the internal temperature constant and stable with respect to the changes occurring in the external environment. This involves maintenance of the internal temperature, pH, and conservation of water.

B is the correct option this is because of the fact that in desert water conservation will be the beneficial adaptation. The rat may experience dehydration in day but water will not be lost in night. This will help in maintaining the homeostasis.

Softa [21]3 years ago

4 0

The answer to this question is D

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Softa [21]

Answer:

IDK SORRY I hAVE DISLEXIA

Explanation:

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2 years ago

A television advertisement claims that a certain brand of cough drop reduces coughing for 8 hours. Describe an investigation tha

Liono4ka [1.6K]

Answer:

See explanation below.

Explanation:

Study Design - Partially double-blinded study

The cohort study will be composed of 80 adults (aged ≥18 years) with a clinical diagnosis of constant coughing present as a result of a cold, which would be measured by semiautomated ambulatory cough monitor.

This study will be divided into an experimental group and a control group:

No medication (natural drops; e.g. water; saline solution) - Control group
Cough treatment - Experimental group

Data to be collected:

Participant cough will be recorded every hour (until 8 hours are reached) for two consecutive days (for repetitions) in both groups using semiautomated ambulatory cough monitor and analyzed statistically.

Observations:

Experimental group: If coughing is significantly (statistical analysis) reduced within the 8 hours (after repetitions) and a symptom improvement is observed, the hypothesis that cough drops are effective is valid.

Control group: To determine that cough drops treatment is effective, the no-treatment group should score worst and participant should not show significant improvement.

*In scientific experiments, repetitions are important to prevent bias and error.

6 0

3 years ago

The arterioles (small arteries) leading to an organ, constrict in order to decrease flow to the organ. To shut down an organ, bl

Elodia [21]

Answer:

The main factor that causes vasoconstriction is the high concentration calcium inside muscle cells.

Explanation:

When the vessels suffer vasoconstriction, the blood supply is decreased and in this way the heat of the body is maintained. The way this happens is because the blood can no longer reach the surface and therefore decreases outward heat radiation. The main factor that causes vasoconstriction is the high concentration calcium inside muscle cells. There are several factors that cause vasoconstriction, internal or external. Environment is one of the external factors, and what happens to the penguins' feet is an example for it, since they are trying to preserve body heat to survive.

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3 years ago

6)Why do the walls of the stomach secrete hydrochloric acid?

Anon25 [30]

1.The enzyme pepsin.Pepsin breaks down proteins in the stomach

2 Im pretty sure its the duodenum and the ileum

8 0

2 years ago

A mixture that cannot be separated by a semipermeable membrane

saul85 [17]

Transparent solute cannot be separated from solvent by filtration or by passing through semipermeable membrane.

<h3>Can suspensions be separated by semipermeable membrane?</h3>

Suspensions are heterogeneous that are various from solutions or colloids.

The particles of a suspension are so large that they can often be seen with the eye. They are trapped by filters and semipermeable membranes.

Thus, Transparent solute cannot be separated from solvent by filtration.

To learn more about semipermeable membrane click here;

brainly.com/question/3446165

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2 years ago