I need help with these questions. Will give brainliest

Biology

1 answer:

Scrat [10]3 years ago

6 0

Answers:

1 = A “Presence of Haemoglobin”

2 = B “sickle-cell anaemia”

3 = C “sickle-cell anaemia”

4 = B “damages the immune system”

5 = A “leukaemia”

6 = C “leukaemia”

Hope this helps!!!

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In which brain region are the cerebral peduncles located?

Scrat [10]

Answer:

midbrain

Explanation:

The midbrain is the smallest region in the brain and helps to relay information for vision and hearing. The cerebral peduncles are located on either side of the midbrain and are its most anterior part, acting as the connectors between the rest of the midbrain and the thalamic nuclei.

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4 years ago

Does anyone know the answer to this?

snow_tiger [21]

Answer:

hello! it is A.

Explanation:

during mitosis the cell divides into two identical daughter cells!

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3 years ago

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Explain how you could determine wheater seeds in packets of round pea seeds have a genotype rr or rr

mezya [45]

I think you mean Round could be RR or Rr (round is dominant to wrinkled)
R=round
r=wrinkled
RR would be round phenotypically
Rr would be round phenotypically
To determine if they are RR or Rr you should perform a backcross with a wrinkled mutant!
I put a picture to demonstrate this.
If they are RR then if you cross with rr you would only get phenotypically Round pea plants.
If they are Rr then if you cross with rr you would get 50% round and 50% wrinkled. Any wrinkled? Definitely the heterozygote Rr!!

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3 years ago

In what sphere do chemicals have the shortest average residence time

swat32

a. biosphere

Matter moves through the biosphere by being cycled through various organic and inorganic stages. They are neither created nor destroyed. The biosphere is known as a closed system so no elements can escape. They are continually being recycled.
The flow of energy moves through living organisms via the food chain. A food chain is a diagram which shows how every living thing gets energy to live. Plants use the sun, nutrients in the soil and water to generate energy. Herbivores eat the plants to generate energy to survive. Carnivores eat the herbivores to generate energy.

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4 years ago

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Which type of contraction causes a skeletal muscle to shorten?

Sati [7]

Answer:

concentric contraction

Explanation:

A concentric contraction causes muscles to shorten.

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3 years ago