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zavuch27 [327]
3 years ago
11

The mechanism of action of oral combined contraceptives that prevents pregnancy is:

Biology
1 answer:
nadezda [96]3 years ago
3 0
They inhibit lh and fsh hormone this stop the maturation of follicles henve they are not released and sperm has nothing to fuse so fertilisation doesn't occur
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A regular progression of species replacement is called __________.
skad [1K]

Answer:

this should help you figure this out!

Explanation:

a somewhat regular progression of species replacement is called succession consists of a community and all the physical aspects of its habitat such as the soil water and weather. Ecosystem.

4 0
3 years ago
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Name the two high energy molecules that are produced during the light dependent reactions?
irakobra [83]

Answer: atp and adp

Explanation: atp is an unstable molecules which hydrolyzes to adp and inorganic phosphate when it is in equilibrium with water.

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3 years ago
Using the 10 percent rule, explain why there is typically smaller populations of quaternary consumers compared to primary consum
grandymaker [24]

Answer:

As we know 10% law is transfer of energy from higher trophic level to lower trophic level. So as the energy are transfer from one organism to another there is a loss of energy as that energy are utilised by the oragnism and only 10% of the total energy is transferred to the second consumer.

Explanation:

Quetinary consumer are at the higher position in the food chain so they do not get enough energy from prey they have to feed on several organism for the enegy. And also they are at the top of the food chain so they are not eaten by other animal, their life span are also more than primary consumer.

In other hand primary consumer get enough energy but they are prey for other higher tropic level.

Primary and secondary consumer are maintend in such a way by the nature thats make a ecological balance of the habitant.

6 0
4 years ago
List the color of the stars from hottest to coldest.
Marrrta [24]

Answer:

Summary. Stars exist in a range of colors: red, orange, yellow, green, white and blue with red being the coolest and blue being the hottest. A star's color indicates it's temperature, composition and relative distance from earth.Explanation:

6 0
3 years ago
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Prokaryotic DNA is:<br> (Fill in the letters, this is for a crossword)<br><br> _ e _ _ _ _ _ _ _
Stells [14]

Answer:

Prokaryotic DNA can be found in the cytoplasm whereas eukaryotic DNA is found in the nucleus, enclosed by the nuclear membrane.

Explanation:

3 0
2 years ago
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