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Fiesta28 [93]
3 years ago
9

What was special about the nucleus?

Biology
1 answer:
Rzqust [24]3 years ago
7 0

Answer:

D) It held DNA

Explanation:

The nucleus controls and regulates the activities in a cell. It carries the genes or structures that contain the hereditary information. (DNA)

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Write about the reasons your body might need new cells.
nekit [7.7K]

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❖ Your body might need new cells to replace the old, damaged, cells that need to be repaired, or dead cells. Your body might also need more cells for you to grow.

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~ ᴄʟᴏᴜᴛᴀɴꜱᴡᴇʀꜱ

8 0
3 years ago
Which sentence uses the past participle form of the verb draw?
nirvana33 [79]
Choice b choice b choice b choice b choice b

6 0
3 years ago
Are there vacuoles in the human body?
Andrew [12]
No there are no vacuoles in a human but there are in a plant but not humans.
3 0
2 years ago
How do animal cells, Plant cells, freshwater protists, and
Romashka [77]

Answer:

Plant cells deal with osmosis by being enclosed in a cell wall.

Animal cells use active transport systems to deal with the problem of osmosis.

Fresh water protists have contractile vacuoles to deal with osmosis.

Many bacteria have cell wall to protect them from osmosis.

Explanation:

Plant cells have a rigid cell wall. If a plant cell is places in a place where the conditions are hypotonic, then the cell will tale up water by osmosis but the cell wall will prevent it from bursting. This condition is termed as the cell being 'turgid'.

As animal cells do not have the rigid cell wall, they use the mechanism of active transport system to stop the cell from bursting during osmosis. In this process, ions are moved out of the cell so that the pressure in the cell due to osmosis can be reduced.

Fresh water protists have a structure present in them called as the contractile vacuole. The contractile vacuole has the capability to remove any excess water from the cell as well storing water if there is not enough water.

Bacteria have peptidoglycan cell walls to prevent osmosis.

6 0
3 years ago
Hhv-5 infectious in pregnant women can be particular concern because this virus can be?
kow [346]

Hhv-5 infectious in pregnant women can be particular concern because this virus can be teratogenic.

<h3>What is teratogenic?</h3>
  • Teratology is the study of aberrant physiological development across the whole life cycle of all species, including plants.
  • Dysmorphology is a branch of medical genetics that focuses on the classification of congenital deformities.
  • Teratogens are substances that, when exposed to a pregnant woman, may result in physical or functional abnormalities in the human embryo or fetus.
  • Such substances include, for example, alcohol and cocaine.
  • A teratogen is an agent that increases a baby's risk of developing a birth defect or can actually cause one.
  • They are items to which a mother might be exposed while expecting.
  • Teratogens can result in neural tube abnormalities like spina bifida during this time.
  • Throughout the entire pregnancy, certain organs are vulnerable to teratogens.
  • The baby's brain and spinal cord are included in this.
  • Alcohol can be harmful at any point during pregnancy since it has an adverse effect on the brain and spinal cord.

Learn more about teratogenic here:

brainly.com/question/14970129

#SPJ4

8 0
1 year ago
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