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lana66690 [7]
3 years ago
5

Which is an organ? heart circulatory system blood muscle tissue

Biology
2 answers:
DochEvi [55]3 years ago
8 0

Answer:

Heart

Explanation:

spin [16.1K]3 years ago
4 0

Answer:

heart !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!11

Explanation:

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what makes up cell membranes and is used to create hormones?(1 point) glucose glucose cholesterol cholesterol starch starch hydr
RUDIKE [14]

Cholesterol makes up cell membranes and is used to create hormones.

Cell membranes are the outer covering of the cell that protect it from the outer environment. A cell membrane is a bilayer of lipid, composed of protein and cholesterol as well. The cholesterol is essential to maintain the proper integrity of the cell membrane.

Hormones are the chemical messengers that are released at one site and they perform their function at another location of the body. Hormones can be made up of several macromolecules like polypeptides, amine acids or cholesterol. The example of hormones made up of cholesterol are: glucocorticoids, mineralocorticoids, and sex hormones.  

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5 0
2 years ago
1) which is a role of cellular respiration in cycling materials between the atmosphere and biosphere?
ollegr [7]

Answer:

1) The correct answer would be A. it transfers carbon to the atmosphere as carbon dioxide.

Cellular respiration refers to the set of biochemical reactions take place in a cell in order to convert the energy of glucose into adenosine triphosphate (ATP).

The carbon dioxide is released as the byproduct of the process.

C₆H₁₂O₆ + 6O₂ →  6CO₂ + 6H₂O + ATP

2) The correct answer would be D. fermentation can occur without oxygen.

Fermentation is the process which occurs in oxygen is either absent or present in very less amount.

Thus, it enables the cell to survive when oxygen is not available.

For example, in humans, the muscle cells switch to lactic acid fermentation when oxygen supply is decreased during intense exercise.

It produces very less amount of ATP as compared to the aerobic respiration.

7 0
3 years ago
Read 2 more answers
What is the difference between chromosomes and sister chromatids in the m phase?
denpristay [2]

Answer:

Before cell division must occur, the chromosomes must replicate themselves. Sister chromatids are the two initially identical copies.

6 0
3 years ago
Fill in the information missing in the table to the
morpeh [17]

Answer: Protiens hydrates acids

Explanation:

8 0
4 years ago
Which of the following types of electromagnetic radiation has the shortest frequency? (2 points) Infrared waves Microwaves Ultra
NemiM [27]
The electromagnetic radiation with the shortest frequency is MICROWAVES.
Electromagnetic spectrum refers to the distribution of electromagnetic radiations according to their frequency or wavelengths. Electromagnetic spectrum is made up of many type of radiation, which have different properties. The frequency of electromagnetic radiation refers to the number of wave cycle that is formed per second. The electromagnetic radiation with the highest frequency is gamma ray while the radiation with the shortest frequency is radio wave. For the question given above, the radiation with the shortest frequency is microwaves.
3 0
3 years ago
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