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harkovskaia [24]
3 years ago
11

Why do all the normal cells in the human body have the same number of chromosomes?

Biology
1 answer:
Luba_88 [7]3 years ago
8 0
In a one word response,  mitosis.
In an explanation: Before the replication process, an ordinary sex cell contains only has 23 chromosomes. That is half the amount of a normal cell. So when the cells join together they make up the 46 pairs.  Then through replication and division(i.e mitosis), the cells are copied to form in short a tiny human.  You then forever live with the same amount of chromosomes in your normal cells. 
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1 Explain the mcaning of the word molecule​
r-ruslan [8.4K]

Answer:

The meaning of word molecule is The group of atoms forming a group is called molecule

In simple word , 2 or more atoms combine together to form a molecule for ex - Carbon dioxide ( 2 atoms of carbon and 1 atom of oxygen)

6 0
3 years ago
If one amino acid in a protein sequence is changed, what could happen?
Mrac [35]
If one amino acid in a protein sequence is changed then normal bodily functions can change.So the answer will be B. Hope this can help a lot
4 0
3 years ago
Read 2 more answers
According to the passage, what two things do jewelers have to consider when<br> making jewelry?
arlik [135]

Answer:

A. beauty and value

Explanation:

options are the following.

A. beauty and value

B. science and elements

C. beauty and science

D. gold and platinum  

Jewelers have to consider both beauty and science when  making jewelry because people chose those jewelry which is more attractive so beauty is the key component for the making of jewelry. Jewelers also know about the science which means he has to know different characteristic of metals which are used in making jewelry. Without this knowledge, the jewelry which is formed is of low quality.

8 0
3 years ago
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A study comes out that says that eating sugar
Troyanec [42]
C is the correct answer
8 0
3 years ago
Select the endocrine organ from the drop-down menu that matches with its hormone.
Papessa [141]

Answer: The options were missing, but the endocrine organs that secret each gland are:  

Pituitary gland: Thyroid-stimulating hormone

Pituitary gland: Adrenocorticotropic

Hypothalamus: Gonadotropic

Pituitary gland: Prolactin

Pituitary gland: Growth hormone

Thyroid gland: Thyroxine

Thyroid gland: Calcitonin

Thyroid gland: Triiodothyronine

Hypothalamus: Antidiuretic

Hypothalamus: Oxytocin

Adrenal gland: Glucocorticoids

Adrenal gland: Mineralocorticoids

Adrenal gland: Epinephrine

Pineal gland: Melatonin

Thymus gland: Thymosins

Pancreas: Insulin

Pancreas: Glucagon

Explanation:

  • The pituitary gland, also known as the hypophysis, produces the thyroid-stimulating hormone, the adrenocorticotropic, prolactin, and growth hormone. The hypophysis has two parts, the anterior one and the posterior one. The anterior one secretes these hormones thanks to the action of hormones that comes from the hypothalamus.
  • The hypothalamus, which is a gland that is in the brain, produces:

gonadotropic, antidiuretic, and oxytocin. Once produced, they are stored and secreted by hypophysis. In this case, these hormones are in the other portion of the hypophysis, the posterior part. The hormones act in the reproductive system.

  • The thyroid gland, which is in the neck, produce and secretes:

thyroxine, calcitonin, and triiodothyronine. The calcitonin controls calcium concentration, while the thyroxine and triiodothyronine impact the cells' metabolism.

  • The adrenal gland is above the kidneys. It secretes Glucocorticoids, Epinephrine, and Mineralocorticoids. The mineralocorticoids regulate the concentrations of water and salt in our body; glucocorticoids have many functions, one is fighting inflammation; lastly, epinephrine, also known as adrenaline, is released in a fight or flight reaction.
  • The pancreas is an organ and a gland. As a gland, it secretes glucagon and insulin to regulate the concentration of glucose in the blood.
  • The pineal gland is on the brain. This gland secretes melatonin, which is a hormone that helps us to sleep.
  • The thymus gland is in the chest, and it produces a hormone called thymosin. This hormone helps in the production of leucocytes, which the thymus produces.

8 0
3 years ago
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