One way scientists have shown evolutionary history and common ancestry in species is through molecular evidence. True False

Answers

Answer 1
Answer: False, they have no proof.


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Though hen and frog both are oviparous but they have different types of fertilization. Justify.

What does torso mean in a frog

Answers

Main part of the frog

What happens when the spinal cord is injured?

Answers

Not all the time if the spinal cord is damaged that you will be paralyzed it is only when the nerves that are rapped around it become damaged that you might not be able to function well

While dna in a human cell was being replicated, a single base was miscopied. what will most likely be the result for the cell in which it happened?

Answers

Answer:

The options to this question are missing, they are:

A) All the proteins the cell creates from the miscopied strand will do different jobs than the old ones.

B) Any miscopied DNA will be replaced with an accurate DNA copy once the cell divides.

C) Both new DNA strands will end up together in a new cell, and the inaccurate one will be discarded.

D) If the new sequence codes for the same amino acid as the original cell, it will function normally.

THE CORRECT ANSWER IS D

Explanation:

What occured to this cell replicating its DNA is called MUTATION, which is a change (small or big) in the nucleotide sequence of a DNA. The miscopied base will alter the nucleotide sequence of the DNA. Since a single base is involved, it is referred to as a POINT MUTATION.

A point mutation, such as the one in this case, can produce varying effects in the resulting organism. The mutation can either lead to a different protein in that particular sequence the mutation occured or have no effect on the organism.

The mutation will have no effect on the organism in a case where the base that was miscopied produced a codon that codes for the same amino acid as the original codon. Hence, the same protein will be produced and have both effect on the cell. This is possible because of the degenerate nature of the genetic code, as more than one codon codes for a given amino acid.

Mutation I presume ??

A botanist observes a large population of a particular type of beetle eating the leaves of one tree but not the leaves of a nearby tree. What should the botanist do first to study the interaction of these organisms in the ecosystem?A. Remove the beetle population from the tree, and study them in the lab.
B. Identify the species of the beetle and the species of both trees.
C. Determine why the beetle is eating one tree but not the other.
D. Recommend a treatment that will keep the beetles from eating the trees.

ANSWER: B. identify the species of the beetle and the species of both trees (quizlet)

Answers

The botanist should  firstly  study the interaction of these organisms in the ecosystem by identifying the species of the beetle and the species of both the trees. Therefore, the correct option is B.

What are species?

A species is a group or organisms that can interbreed and produce viable offspring. The concept of species is used to define a unique type of organism, and it is the basic unit of biological classification.

Species are considered to be different from one another if they are unable to interbreed and produce offspring that can survive and reproduce. This definition of species is known as biological species concept.

In the case given in the question, the botanist should first identify the species of both the beetles and the trees. Then try to deduce a relationship between them which could clarify that the reason of the beetles feeding on those specific trees. Hence, the correct option is B.

For more details regarding species, visit:

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Answer: It's B,

"Identify the species of the beetle and the species of both trees."

Most European nations have a dominant culture.
a. True
b. False

Answers

True most European countries do have a dominant culture 

What is the purpose of a pufferfish spines

Answers

the spines of a puffer fish holds a venom protecting the fish