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Veronika [31]
3 years ago
15

Can someone help me asapp

Biology
1 answer:
-Dominant- [34]3 years ago
7 0

Answer: hydrogen bonds

Explanation: The two strands of a DNA molecule are held together by hydrogen bonds between the nitrogen bases on opposite strands.

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Plants are a source of ________.<br><br> food<br> fuel<br> medicine<br> all of the above
den301095 [7]

Answer:

Plants are a source of food, fuel and medicine.

Explanation:

In biology, plants are photosynthetic living beings without locomotive capacity whose cell walls are mainly composed of cellulose.

The importance of plants for humans is indisputable. Without them we could not live, since the plants participated in the composition of the gases present in the Earth's atmosphere and in the ecosystems, and are the primary source of food for heterotrophic organisms. In addition, plants have direct importance to man: as a source of food; as building materials, firewood, fuel and paper; as ornamental; as substances that worsen or improve health and therefore have medical importance; and as a consequence of the latter, as the raw material of the pharmaceutical industry.

7 0
3 years ago
to understand the levels of biological organization, match each of the labels with the correct illustration. Place your cursor o
rewona [7]

Answer:

organelle- part of a cell (example- mitochondrion)

cell- basic unit of structure  (example- muscle cell)

tissue- group of some cells  (example-muscle tissue )

organ- one or more types of tissue (example- stomach)

organ system- group of organs working together (example- digestive system )

Organism- individual living thing (example- goat )

Explanation:

Organization of living things! Hope this helps.

8 0
4 years ago
During child birth what happens to the uterus and the vagina. Explain using dilation and contraction
STALIN [3.7K]
When the baby is being pushed out of the uterus it dialates makeing it easier for the baby to be pushed out when the baby comes out completely the vagina contracts over a month back into its normal size
6 0
4 years ago
"nature is essential for human existence and good quality of life." this report said. which selection from the section provides
lapo4ka [179]

Answer:B

Explanation:

6 0
3 years ago
A blow to the head may cause diabetes insipidus by ______. A blow to the head may cause diabetes insipidus by ______. triggering
Monica [59]

Answer: interfering with the normal transmission of nerve impulses to the posterior pituitary

Explanation: A blow to the head may cause diabetes insipidus by interfering with the normal transmission of nerve impulses to the posterior pituitary. Interfering with the normal transmission of ADH (antidiuretic hormone) to the posterior pituitary is done via the axons of the hypothalamic neurons. The disease is a rare one, characterized by the excretion of large amounts of severely diluted urine which cannot be reduced when fluid intake is reduced. It is generally related to a tumor or an insult to the pituitary gland, where the hormonal signals it gives to the kidneys break down, and the kidneys do not conserve water, but express the water as urine.

7 0
4 years ago
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