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BabaBlast [244]
3 years ago
15

What would happen of the cell membrane were not selectively permeable

Biology
1 answer:
grandymaker [24]3 years ago
4 0
If the cell membrane were not selectively permeable, then unwanted substances would transfer through instead of being blocked out. Think of it like this: you have a sifter with various sizes of spice in it. You only want the finer grains of spice in your food, so when you shake the sifter, the larger pieces of spice don't fit through the small holes that only allow fine grains. Then you are left with the small spices in your food and the large ones stuck in the sifter.
Hopefully this helps and I wasn't too confusing :)
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8. In a population of beetles, there is a gene for color with two codominant alleles. The allele R leads to red beetles and the
Eddi Din [679]

Answer:

The genotypic frequency = 1:1

The phenotypic frequency = 1:1

Explanation:

Given that:

The allele → R = Red beetles

The allele → B = Blue beetles

Since the gene color shows a codominant allele

The Red Beetle = RR

The blue beetles will be = BB

The heterozygous beetle will be = RB

∴

The punnet square showing the crossing of RB × RR is:

                R                   B

R                RR               RB

R                RR               RB

The result shows that we have two red beetles and two heterozygous beetles.

Hence;

The genotypic frequency = 1:1

The phenotypic frequency = 1:1

8 0
3 years ago
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Sveta_85 [38]

The correct answers are:

Tissue level- similar cells work together to accomplish a goal.

Examples of tissue are muscles, skin, bone, and brain (nervous tissue).

A sponge is an example of an organism that is only organized to the cellular level.


4 0
3 years ago
What makes a resource renewable?
MrMuchimi
Renewable energy refers to the provision of energy via renewable resources which are naturally replenished fast enough as being used. it includes e.g. sunlight, wind, biomass, rain, tides, waves and geothermal heat.
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Misha Larkins [42]

Answer:

The answer is C

Explanation:

That is the only one they have in common.

7 0
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