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deff fn [24]
3 years ago
5

Most animals with backbones, vertebrates, have a similar body plan: skull, ribs, two pairs of limbs, tail. What does this sugges

t about vertebrates?
A. Vertebrates are the best designed organisms.
B. Vertebrates all adapted to similar environmental conditions.
C. Vertebrates all have similar lifestyles.
D. Vertebrates have been around longer than most other organisms.
E. Vertebrates are all related to a common ancestor.
Biology
2 answers:
galben [10]3 years ago
7 0

Answer:

E

Explanation:

daser333 [38]3 years ago
3 0

The correct answer is E. Vertebrates are all related to a common ancestor

Explanation:

According to biology and evolution, organisms from different species but that share similarities in morphology (body structures) as well as in genetics often have a phylogenetic relationship which means they descend from the same organism or share a common ancestor. This applies to multiple taxonomical levels including classes such as mammals or birds as it has been proved each of this derived from a common ancestor. Therefore, the similarity in the body structure (morphology) in all mammals suggest vertebrates are related to a common ancestor and as they evolved from this, they share similarities not only in terms of morphology but also in genetics.

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Answer:

B, deoxyribose means it has fewer oxygen molecules than ribose, choice B has fewer oxygens.

Explanation:

Dna stands for deoxyribose

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Who discover the first cell
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Answer:

scientist Robert Hooke

Explanation:

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Indicate whether each of the following occurs mainly in G1 phase (G), S phase (S), or G2 phase (H) of the cell cycle. Your answe
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Answer:

Correct choice should be:

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Explanation:

The cell cycle consists of G1, S, G2 and M phase. The former three phases include the interphase and M phase is the dividing phase of cell . G1 prepares cell for DNA synthesis. S phase is the phase where DNA replication takes place. G2 phase prepares cell for cell division or M phase.

G1 phase preceeds replication or S phase and G1 phase licences DNA replication.

During other phases of cell cycle, ORC complex masks origin of replication. ORC phosphorylation takes place at S phase, which removes this omplex and unmasks origin of repication site so that replication machinery can bind to it.

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Hence correct choice should be:

SGSG

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