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Liula [17]
3 years ago
10

Which evidence originally supported Hess’s idea of seafloor spreading in 1968

Biology
2 answers:
lesya [120]3 years ago
8 0

correct answer:

b- the direction iron in ocean rocks points

d- the age of different rocks on Earth’s surface

e- pillow-shaped rocks found in the sea

eimsori [14]3 years ago
6 0

Answer:

2 4,5 are all right

Explanation:

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What four body plan innovations were found in an ancient flatworm
Oksanka [162]

Answer:

Four innovations are central nervous system, eyes, bilateral and hermaphrodites.

Explanation:

Innovations found in an ancient flatworm were the presence of central nervous system means head and a brain. The head had eyes which is the first in the animal world. Their body is bilateral means equally divided into two parts. They are also hermaphrodites means having male and female on a single organism which was not present at that time of animals.

5 0
3 years ago
3 advantages and disadvantages of the natural ecosystem<br>​
Andrei [34K]

Answer:

Urbanization has environmental and economic advantages for humans, but also substantial disadvantages, including increased problems with physical and mental health/stress, a modified climate, water and energy management, and air pollution.

7 0
3 years ago
4. Which of the following is NOT an inherited trait?
Goryan [66]
D. Ability to read

Hope this helped
4 0
2 years ago
Read 2 more answers
In corn, the allele A allows the deposition of anthocyanin (blue) pigment in the kernels (seeds), while aa plants have yellow ke
lara31 [8.8K]

Answer:

<h2>A) Yes, 12 mu</h2><h2>B) AaWw</h2><h2>C) 0.25%</h2><h2 />

Explanation:

As given,

Allele A for  blue anthocynin.

aa for yellow kernel;

at  second locus;

W produce smooth kernel,

ww for wrinkled kernel;

Parents as given are:  AaWw and aaww

Progeny are:

blue smooth ( AaWw)= 1447;

blue wrinkle (Aaww)= 169;

yellow smooth (aaWw)= 186;

yellow wirnked (aaww)= 1510

a)

Recombinant progeny are  169+ 186= 355

non- recombinant progeny are = 1447+ 1510= 2957

so recombination frequency (RF)= 346/2957×100= 12.0054%

So a and w are linked genes.

They are 12 mu far away from each other.

b) Blue smooth parent= AaWw.

c) Aaww crossed with  aaWw

progeny are= AaWw, Aaww, aaWw, aaww,

They all are produced in same proportion =0.25% or 1/4.

5 0
3 years ago
What determines the function of a protein​
Sauron [17]

Answer:

The sequence of amino acids. - The three-dimensional shape of the folded protein. - If the coding sequence has a mutation that leads to a change in the amino acid sequence, the protein may have a different three-dimensional shape, reducing its activity.

Explanation:

3 0
3 years ago
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