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Savatey [412]
3 years ago
9

Which layers are impermeable ?

Biology
1 answer:
klemol [59]3 years ago
4 0

Answer:

A portion of an aquifer that contains rock material that does not allow water to penetrate; often forms the base of unconfined aquifers and the boundaries for confined aquifers.

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Where does respiration and photosynthesis take place in the cell.
11111nata11111 [884]

Answer:

respiration  - mitochondria, photosynthesis - chloroplasts

Explanation:

Cellular respiration takes place in the mitochondria

Chloroplasts contain a green pigment called chlorophyll which absorb sunlight for photosynthesisi

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So why do cats have tails
Margarita [4]
The cat’s tail helps them to balance. The tail helps to serve as a counterbalance when cats walk on narrow spaces such as fences or shelves. ... Even though cats use their tails for balance, if a cat's tail needs to be amputated due to an injury, the cat will soon learn to compensate for the loss of their tail
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What happens in the tetrad stage?​
boyakko [2]

Answer:

The tetrad occurs during the first phase of meiosis. It is the foursome of chromatids that forms when replicated homologous chromosomes align. It must be formed for crossing over to occur. It is broken apart when the homologous chromosomes separate in meiosis I.

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3 years ago
The main difference between deserts and steppes is the
attashe74 [19]
They <span>are determined by the mean annual temperatures and precipitation. With a little less rain the </span>steppe<span> could easily turn into a </span>desert<span>. More rain and it would be classified a prairie.</span>
8 0
3 years ago
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We know a lot more about animals and plants than Darwin did, and still, not a single case is known to me of a complex organ that
grigory [225]

The given statement is True.

<u>Explanation:</u>

The Charles Darwin developed the theory called Darwinism theory of evolution. The theory states that all the species of the organisms arises and developed through the small, inherited variations in the organisms that increase the individual ability to complete the survive and reproduce.

The individual species are not having identical traits that  are passed from the generation to generation. The offspring are born that can survive, only the survive of the completion for resources will reproduce; he describes how the species can change in shape and character through the selective breeding.

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3 years ago
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