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Alinara [238K]
2 years ago
8

If all species originated on the primitive Earth at the same

Biology
1 answer:
MakcuM [25]2 years ago
8 0

Answer:

If all species originated on the primitive Earth t the same time and did not change, which patterns would be expected in the geologic record? The upper rock strata would contain fossils of only more complex organisms.

Explanation:

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In angiosperms, what is the name of the outer epidermal layer that protects the plant body?
Mamont248 [21]

Answer:

cuticle

Explanation:

6 0
2 years ago
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Which of the following statements is true?
AnnyKZ [126]

Answer:

Explanation:

Cold blooded animal did not have cold blood.

Cold blooded animals can’t change their body temperature to match the environment.

Mammals and birds are not cold blooded.

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3 years ago
What happens to water on Earth’s surface as it is heated by the sun? What is this process called?
anyanavicka [17]

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As the water is heated by the sun, water vapor is created and released into the air (process is called evaporation)

Explanation:

The heat coming from the sun heats up the water droplets and turns those droplets from a liquid into a gas (water vapor)

4 0
3 years ago
To be a possible answer to a scientific question , a hypothesis must be ?
Arisa [49]

Answer:

Testable?

Explanation:

6 0
2 years ago
Imagine a genetic counselor working with a couple who have just had a child who is suffering from Tay-Sachs disease. Neither par
adoni [48]

Answer: The correct answer to the question is option C

BECAUSE YOU HAVE HAD ONE CHILD WITH TAY-SACHS,YOU MUST EACH CARRY THE ALLELE.ANY CHILD YOU HAVE HAS A 25% CHANCE OF HAVING THE DISEASE.

Explanation: Tay- Sachs is a rare disorder that is inherited,it is characterised by a progressive destruction of the nerves of the brain and spinal cord.its onset is from around 6months of life to around 4-5years of age when the child affected eventually dies.

A Child that have Tay-Sachs experiences problem with coordination,muscle contraction, must stiffness and weakness.there is also difficulty is speaking, swallowing, wasting(uncontrolled weightloss), hearing loss,seizure, and vision loss.

Since the parents of the child in the question claims they don't have Tay- Sachs and no one in the family has it but they came down with a child having Tay-Sachs and one of the major factors to Tay-Sachs as stated above is heredity,the main point to counsel the couples on is that because they have had one child with Tay-Sachs,they most each carry the allele which is obviously recessive so any child they had have has 25% chance of having the disease.

8 0
3 years ago
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