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4 years ago

Help me with these please

Biology

1 answer:

jeka944 years ago

5 0

3. is it would spin so fast around the earth that it would make 1 full rotation suck the Earth in.

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Anwer the following:How hard the blood pushes on the inside of the blood vessels is called __________.The total amount of blood

Marina86 [1]

Answer:

How hard the blood pushes on the inside of the blood vessels is called Blood Pressure

The total amount of blood the heart pumps in one minute is called Cardiac Output

When blood vessels open wider during exercise, they are said to dilate

How many times your heart beats in one minute is called Heart Rate

The force that can put unhealthy tension on the heart as it is pumping is called Blood pressure

The amount of blood the heart pumps out in one beat is called Stroke volume.

Explanation:

All this concepts to the heart and cardiovascular system. It is important to know how heart is functioning to see how blood circulates.

3 0

3 years ago

A couple without an ancestral history of Tay-Sachs disease (a rare autosomal recessive) have two normal children and an infant a

Bas_tet [7]

Answer:

The probability is 25%.

Explanation:

Let the dominant allele for the disease be 'T' and recessive allele be 't'.

The couple with normal phenotype produces an infant with the Tay Sach's disease.
As the disease is autosomal recessive in nature, it will get expressed in a homozygous recessive condition, that is, when the genotype is : tt.
As the normal parents are producing a diseased offspring, the both parents must be heterozygous dominant (Tt) for the disease allele.
The brother of the husband and the sister of the wife, both having a normal phenotype, can have the following genotypes, TT or Tt.
If either of the individual (brother or sister) has TT genotype and the other has other has either TT or Tt genotype, there is zero probability that they will produce an offspring with the disease.

T T and T T

T TT TT T TT TT

(N) (N) (N) (N)

T TT TT t Tt Tt

(N) (N) (N) (N)

If both the individuals have a Tt genotype, the probability to produce diseased offspring is one-fourth or 25%.

T t

T TT Tt

(N) (N)

t Tt tt

(N) (D)

(N) stands for normal and (D) stands for diseased phenotype.

7 0

4 years ago

Which structure of human hands makes them especially useful for gripping things?

Klio2033 [76]

Answer:

the thumbs

Explanation:

A fully opposable thumb gives the human hand its unique power grip (left) and precision grip (right).

5 0

3 years ago

C A C G T G G A C T G A G G A C T C C T C <br> What is the mRNA:  <br> What is the Amino Acids:  

Yanka [14]

From DNA to RNA, purines and pirimidines transform in this matter:

(A) adenine => (U) uracile ; because RNA has uracile instead of timine in DNA

(G) guanine => (C) citosine

mRNA: G U G C A C C U G A C U C C U G A G G A G

GUG-valine

CAC-histidine

CUG-leucine

ACU-threonine

CCU-proline

GAG-glutamic acid

Hope this helps!

5 0

4 years ago

Read 2 more answers

URGENT! PLZ HELP! <br> Describe how genes are responsible for differentiation

lutik1710 [3]

Because DNA having cross over can cause differentiation.

5 0

3 years ago