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andre [41]
3 years ago
10

What evolutionary changes were essential to the development of complex body plans?

Biology
1 answer:
andrezito [222]3 years ago
3 0

The answer is C. This was achieved through gene regulatory networks. The ability of the cells to segment and differentiate gave the metazoans a great advantage. This is thought to have begun in the Cambrian period with complete bodies existing by the Paleozoic era.






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What does Bioindicator mean?
jolli1 [7]
A bioindicator is a living organism that gives us an idea of the health of an ecosystem. Some organisms are very sensitive to pollution in their environment, so if pollutants are present, the organism may change its morphologyphysiology or behaviour, or it could even die. Hope that helped!
4 0
3 years ago
Where does the NADH from Glycolysis go?
Triss [41]

Answer:

mitochondria

Explanation:

In aerobic glycolysis: NADH is transferred into mitochondria via the mitochondrial shuttle, where it is oxidized to NAD in the respiratory chain, ultimately producing ATP.

4 0
4 years ago
Phosphate and deoxyribose make up what part of dna?
insens350 [35]

Answer:

The backbone of the dna

5 0
4 years ago
You are doing lab work with a new species of beetle. You have isolated lines that breed true for either blue shells and long ant
Alex73 [517]

Answer:

33.3 cM

Explanation:

Parent 1: blue shell, long antenna : BBLL

Parent 2: green shell, short antenna : bbll

BBLL X bbll :

F1 : BbLl ( blue shell, long antenna )

BbLl X bbll :

BL/bl = 82 : Parental

bl/bl = 78 : Parental

Bl/bl = 37 : Recombinant

bL/bl = 43 : Recombinant

Total = 240

Recombination frequency = (Number of recombinants/ Total offspring)*100

= (80/240) * 100 = 33.33 %

Map distance = recombination frequency

Hence, map distance = 33.3 cM

3 0
3 years ago
At one time, Chondrichthyes were thought to have diverged from other vertebrates before the evolution of bone. Now we have concl
Ray Of Light [21]

Answer:

The correct answer would be - Characteristics can be lost in evolution.

Explanation:

The new evidence helps in developing a new hypothesis. In this case, new evidence proved that the Chondrichthyes diverged after the evolution of bone had started instead of before the evolution started. This process called atavism where an ancestral genetic trait reappears after having lost. This leads to loss of the traits in the evolution

This can take place by knocking the mutation out to overriding the gene by the old gene or overriding the new trait by the old trait during the evolution period.

6 0
3 years ago
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