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Sidana [21]
3 years ago
11

What is a meristematic cell?

Biology
1 answer:
satela [25.4K]3 years ago
7 0

Answer:

A

Explanation:

Pluripotency means the cell can grow to any part of the plant including the whole plants. This why meristematic stem cells are harvested from plants and used to make cultivars <em>in vitro</em>. Meristematic stem cell in plants are found in apical  shoots and roots and are responsible for the growth of height and girth of the plants.

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What are the main parts that make up the endocrine system and what are their function
Anna11 [10]
Main parts and their functions :

- Hypothalamus : Links the nervous system to the endocrine system via the pituitary gland. It controls the release of 8 hormones by the pituitary gland, controls body temperature, control of food and water intake, hunger and thirst!

- Pituitary gland : Produces essential hormones for everything living such as the growth hormone, adrenocorticotropic hormone, thyroid stimulating hormone, luteinizing hormone and follicle stimulating hormone, etc.

- Thyroid gland : Produces thyroid hormones that regulate the body metabolism, play an important role in bone growth and development of the brain and nervous system in children!

- Parathyroid glands : Release parathyroid hormone which plays a role in regulating calcium levels in the blood and bone metabolism.

- Adrenal glande : Produce hormones that help the body control blood sugar, burn protein and fat, react to stressors, and regular blood pressure.

- Pineal body/gland : Secretes the melatonin hormone which may help regulate the wake-sleep cycle of the body.

- Reproductive glands : Main source of sex hormones for males and females.

- Pancreas : Has digestive and hormonal functions. One part of the pancreas called the exocrine, secures digestive enzymes. While the other part of the pancreas called the endocrine, secretes hormones called insulin and glucagon. Overall, these hormones regulate the level of glucose in the blood.

Hope this helps :)





7 0
3 years ago
Which mission saw the first American spacewalk? A. Apollo B. Gemini C. Mercury D. Skylab
Sliva [168]

Answer:

B

Explanation:

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8 0
3 years ago
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HELP FAST !! 20 p. When matter evaporates or boils, both processes end up with the same result.
PolarNik [594]

Answer:

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Explanation:

7 0
3 years ago
Bark of a tree is impervious to gases and water
Naddika [18.5K]
The bark of a tree is impervious to gases and water because bark cells are dead cells of the epidermis and compactly arranged without intercellular spaces. They contain a chemical called suberin in their walls that make them impervious to gases and water and it doesn't allow gases or water into the tree as bark cells are in the bark outer most layer of the tree. 
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3 years ago
There are two rainforest biomes, a temperate and a tropical. What makes them so different? PLS HELP ME!!!
Ivan

Answer: Tropical rain forests experiences no seasons because it is just hot all year round while temperate rain forests experiences four seasons. Tropics also receive the most sunlight in the planet while temperate rain forests receive light at a slanted angle.

6 0
3 years ago
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