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Lady bird [3.3K]
3 years ago
11

Why does menstruation happen?

Biology
2 answers:
DedPeter [7]3 years ago
6 0
The menstrual<span> cycle </span>occurs<span> due to the rise and fall of hormones</span>
Troyanec [42]3 years ago
4 0

During that, menstruation stops because the blood came from the uterus protect it and give nourish to the fertilized egg. It usually happen because a sperm cell meet it. When menstruation happens, it develop an egg cell and carried out with the lining of the uterus called the endumetrium because it dies.

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Within a limited area, if the population of a predator increases, the population of its prey is likely to
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The prey is likely to decrease/decline if the predator's population increases

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12.
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Considering the Mendelian traits tall (D) versus dwarf (d) and violet (W) versus white (w), consider the crosses below and deter
Artyom0805 [142]

Answer:

DDWw x Ddww

DdWw x DDww

DDWw x DDww

Explanation:

D for tallness

d for dwarfness

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w for  white

For Parental Plants that has

tall, violet x tall, white

 The representation will be

DDWW × DDww      (We the apply the mendelian crossing)

This will yield offsprings with the following trait

DDDD × DwDw

DDDD × DwDw

DWDW x WwWw

DdWw x ddww

Ddww x ddWw

DdWw x DdWw

DDWw x ddww

From the above Offsprings

1/2 tall, white and 1/2 tall, violets offspring are

DDWw x Ddww

DdWw x DDww

DDWw x DDww

7 0
3 years ago
How are organism in the domains bacteria and archaea similar
devlian [24]

Answer:

C. They contain nuclei

Explanation:

6 0
3 years ago
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A(n) __________ pathogen causes disease only when conditions are favorable for the microorganism because of transfer to an inapp
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Answer:

Opportunistic.

Explanation:

Pathogen may be defined as the disease causing organism. The opportunistic pathogen causes disease mostly in the organism with weak immune system of the body.

The opportunistic pathogen can cause disease if the environmental condition is favorable for pathogen. These pathogens are not capable of inducing disease in the healthy individual.

Thus, the answer is opportunistic.

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