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Vaselesa [24]
3 years ago
14

Which statement correctly describes an example of homeostasis in humans?

Biology
2 answers:
Kay [80]3 years ago
6 0
4. The kidneys remove excess water from blood
ad-work [718]3 years ago
5 0

Answer: 4. The kidneys remove excess water from blood.

Explanation:

Homeostasis is the ability or quality of the body to regulate and maintain it's internal environment constant with respect to the changes occurring in the external environment. This makes the organism survive in the changing environment. Maintaining the temperature, pH, blood pressure, controlling the fluid balance all are example of the homeostasis.

The kidneys remove excess water from the blood along with the excess water many impurities and wastes are removed from the body by the process of urination. This way kidneys purifies the body by excreating wastes.  

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identify an independent variable in the experiment graphed in figure 1. based on the data in figure 1, identify a control that s
choli [55]

Answer:

Explanation:

This question is incomplete because of the absence of the graph. However, the independent variable of an experiment is the variable that is not affected by any other variable during the course of the experiment but is however intentionally or unintentionally predetermined by the researcher conducting the experiment. For example, in an experiment to determine the effect of age on blood pressure; age is the independent variable because the age class/groups of the individuals to be used can be determined by the researcher also the age cannot be affected by the pressure (the age of a person cannot change because of an increase/decrease in blood pressure).

Also, the control of an experiment is the variable/data in which other data in the same experiment are compared to. For example, in an experiment to determine the effect of a substance (such as sepin-1) on the growth of cancer cells (using a culture medium), the control can be the culture medium that was not given any substance or the culture medium that was given a pure substance of no effect like water. This means, in this control culture medium, the cancer cells will continue to grow normally while that growth will be compared with what is seen in the culture medium treated with sepin-1.

7 0
3 years ago
Greg remembered a recent dream in which his girlfriend suddenly grabbed the wheel of his speeding car. Greg's therapist suggeste
aleksandrvk [35]

Answer:

The given blank can be filled with latent content.

Explanation:

The latent content signifies the hidden meaning of a dream, that is, present behind the dream's literal content. On the basis of Freud, a dream's latent content signifies the hidden psychological meaning of the dream.  

Freud considered that the content of the dreams is associated with fulfillment of wish and recommended that dreams possess two kinds of content. These are latent content and manifest content. The actual literal subject matter of the dream is known as the manifest content, while the underlying significance of these symbols is the latent content.  

7 0
3 years ago
When there are not enough available nutrients to support bacterial growth, some bacteria survive by
Genrish500 [490]

Answer:I’m not sure but I think it is the last one

Explanation:

6 0
2 years ago
⦁ Está constituido mayoritariamente por agua; diferentes moléculas orgánicas, como carbohidratos; y moléculas inorgánicas, como
Marina86 [1]

The question is in another language so, English translation for the given question is as follows:

It is made up mostly of water; different organic molecules, such as carbohydrates; and inorganic molecules, such as mineral salts. It carries out most of the chemical reactions of the synthesis of molecules and obtaining energy. To which of the following cell structures does the above description correspond?

a) Nucleus. b) Genetic material. c) Cytoplasm. d) Cell membrane.

Answer:

c) Cytoplasm

Explanation:

The Cytoplasm is defined as a thick solution filled inside each cell and all the organelles float in the cytoplasm.

The Cytoplasm is majorly made up of water, carbohydrates, salts, and proteins. Cytoplasm contains different molecules and enzymes that carries out most of the chemical reactions and obtain energy. Cytoplasm also helps in providing shape to the cell.

Hence, the correct option is c) Cytoplasm.

6 0
3 years ago
What is the purpose of using control groups in an experiment
Brums [2.3K]
Typically you use experimental and control groups in an experiment. a control group is like the default, and the experimental is the one you actually experiment with.

for example if i run an experiment on the effects of food dye on a leaf stem, i’ll have my control group (the ones without food dye) to compare to the experimental group (the ones with food dye)

the control group is a way for scientists to see how an experiment truly affected or altered the subject

6 0
3 years ago
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