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Rufina [12.5K]
3 years ago
7

Why do birth control pills contain progesterone? Help please!!

Biology
2 answers:
goldenfox [79]3 years ago
8 0
D is the answer mmmmm
Artist 52 [7]3 years ago
6 0

Answer:c  u take birth control to not get pregant so if  thers no sperm and eggs mixed no prego

Explanation:

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ella [17]

Answer:

Executive

Explanation:

having the power to put plans, actions, or laws into effect.

8 0
2 years ago
1. An animal cell has a 2% salt concentration. It is placed into a solution with a 0.05% salt concentration. What would happen t
jenyasd209 [6]

Answer: water will move out of the animal cell causing it to swell and burst  (Option C)


Explanation:


When a cell is immersed into a salty solution, the osmotic pressure generated by concentration differences of salt, will make the salt come in due to cell self-protection mechanism of the cell and water will come out, eventually the cell can burst .But since the animal cells has a higher concentration of salt and the solution has a lower concentration osmosis will take place and salt will move from higher salt concentration to lower.



3 0
3 years ago
From which source is it thought that chloroplasts in algae originated
Mashcka [7]
They are considered to have originated from cyanobacteria through endosymbiosis—when a eukaryotic cell engulfed a photosynthesizing cyanobacterium that became a permanent resident in the cell
5 0
3 years ago
The difference in the concentration of dissolved particles from one location to another is called a
Anvisha [2.4K]
I believe this difference in concentration of dissolved Particles from one location to another is called a concentration gradient.
7 0
3 years ago
What is the impact of the depletion of fishing stocks?
ziro4ka [17]
It is the same as creating more pests or setting up dominant species which upset the ecological food pyramid leading to decimation of trophic levels or predators and energy cycling. Fishes feed on microscopic algae and animals the primary base of the food chain in water, if they are not checked they will choke the rivers and oceans causing toxic waters. Fish feed to contain them, in the process they grow and increase in numbers but their population is checked by bigger fishes and so on till it reaches a top predator which is usually a large animal.
3 0
3 years ago
Read 2 more answers
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