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RSB [31]
3 years ago
10

Science questions I need help! 2 quick questions

Biology
1 answer:
Lena [83]3 years ago
7 0

Answer:

Osmosis:The movement of solute across a semi-permeable membrane

Cell membrane:It is a semi-permeable allowing the movement of water and nutrients to move in and out of the cell.

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Suppose that tomatoes with the RR genotype are red and those with rr are green. Assuming that this reflects conventional genetic
netineya [11]

Answer:

B. R is dominant to r, and Rr individuals are red.

Explanation:

In genetics the dominant allele is represented by the uppercase letter and the recessive allele is represented by the lower case letter. A dominant allele always shows its dominance over the recessive allele. So in heterozygous condition dominant allele will reflects itself in the phenotype.

Here allele of red color allele is in capital letter and alleles of green color are shown in lower case which means R allele is the dominant allele and r is the recessive allele. Therefore R is dominant to r and in homozygous condition(Rr) red individual will be formed. So the right answer is B.

5 0
3 years ago
What is the difference between plants and fungi?
malfutka [58]

Answer:

While both are eukaryotic and don't move, plants are autotrophic - making their own energy - and have cell walls made of cellulose, but fungi are heterotrophic - taking in food for energy - and have cell walls made of chitin.

Explanation:

While both are eukaryotic and don't move, plants are autotrophic - making their own energy - and have cell walls made of cellulose, but fungi are heterotrophic - taking in food for energy - and have cell walls made of chitin.

8 0
3 years ago
The _____ theory of dreaming proposes that dreaming occurs when the cerebral cortex synthesizes neural signals generated from ac
jeka94

Answer:

The correct answer is- activation synthesis theory

Explanation:

The activation-synthesis theory tells us about the role of neuron in dream production during sleep. It was first proposed in 1977 by Allan Hobson and Robert McCarley which was psychiatrists at Harvard University.

This theory says that in REM sleep some neurons in the lower brains for example in the brain stem randomly activates due to change in neural signals and dream occurs when the cerebral cortex tries to interpret the meaning of these neuron signal changes.  

So the correct answer to this question is- activation-synthesis theory.

7 0
3 years ago
Select the correct answer.
emmainna [20.7K]

it's D but I might be wrong

7 0
3 years ago
Read 2 more answers
Which city is warmer, Columbia -1.5F or Seattle -1.2F
77julia77 [94]

Answer:

Seattle

Explanation:

-1.5f is colder than -1.2f.

7 0
4 years ago
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