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slava [35]
3 years ago
15

When is mitosis necessary

Biology
1 answer:
shepuryov [24]3 years ago
4 0

Answer:when you need to replace cells that are old lost or broken

Explanation:

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діти з синдромом дауна мають ті ж алелі що і батьки у чому ж тоді причина настільки суттєвих відмінностей у будові та функціонув
Anit [1.1K]

Answer:May you please translate that into english

Explanation:

4 0
3 years ago
Heat is a form of? what is it?​
Evgesh-ka [11]

Heat is a form of energy.

7 0
3 years ago
Which is a biotic factor that characterizes the tropical savanna biome?
Oksi-84 [34.3K]

Answer: D

Explanation:

Seasons are not biotic bc they are not living, and we know from playing Minecraft that savannas are not covered in conifers but are covered in grass and a few trees

*Beep Beep*

Lettuce

8 0
3 years ago
!!!almost done!!!
Vitek1552 [10]

Answer:

1.

Explanation:

Xylem cell is a plant vascular tissue that conveys water and dissolved minerals from the roots to the rest of the plant and also provides physical support. Xylem tissue consists of a variety of specialized, water-conducting cells known as tracheary elements.

2. Phloem is the vascular tissue in charge of the transport and distribution of organic nutrients. The phloem is also a pathway to signaling molecules and has a structural function in the plant body.

3. Stomata are composed of a pair of specialized epidermal cells referred to as guard cells. Stomata regulate gas exchange between the plant and environment and control water loss by changing the size of the stomatal pore.

4. Guard cells optimize leaf gas exchange in response to changing environmental conditions and their turgor is controlled by alterations in atmospheric CO2 concentration, light intensity, humidity, and the drought hormone abscisic acid.

4 0
3 years ago
Joint and bone pain, fever, weight loss, fatigue, weakness, hepatomegaly, splenomegaly and enlarged lymph glands are typical sym
kvasek [131]

Answer:

True.

Explanation:

White blood cells cannot function properly and their reduced production can lead to fever and frequent infections. This is because the function of white blood cells in fighting germs has been disrupted.

Other signs and symptoms:

- Weak and tired.

- Lack of appetite and weight loss.

- Swelling and bleeding gums.

- Headache.

- Abdominal swelling is caused by enlargement of the liver and lymph.

- Bone pain, can cause weakness.

Joint pain.

- The glands are swollen. If the glands in the neck and chest are swollen, it can cause blood flow to be blocked. This causes the face to swell, difficulty breathing and snoring.

#If i'm wrong, i'm sorry

4 0
3 years ago
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