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All vertebrate embryos have a tail and gill slits at some point during embryonic development. What does this suggest about vertebrates?(1 point)

Responses

These species share a common ancestor.
These species share a common ancestor.

The embryos of these species require these structures to survive.
The embryos of these species require these structures to survive.

These species have the exact same DNA sequence.
These species have the exact same DNA sequence.

These species evolved in similar environments.
These species evolved in similar environments.
Question 14
Fossil A is found closer to the surface compared to Fossil B. Which of the following conclusions can be made based on this statement?(1 point)
Responses

The species of Fossil A existed at the same time as the species of Fossil B.
The species of Fossil A existed at the same time as the species of Fossil B.

Fossil A is from an older species than Fossil B.
Fossil A is from an older species than Fossil B.

Fossil B is most likely older than Fossil A.
Fossil B is most likely older than Fossil A.

The species of Fossil A evolved from the species of Fossil B.
The species of Fossil A evolved from the species of Fossil B.
Question 15
Vertebrate embryos all follow a very similar developmental process. Which statement could explain this similarity?(1 point)
Responses

All vertebrates develop a backbone that protects the spinal cord.
All vertebrates develop a backbone that protects the spinal cord.

All vertebrates require the same nutrients during embryological development.
All vertebrates require the same nutrients during embryological development.

All vertebrates live in similar environments which require the same adaptations.
All vertebrates live in similar environments which require the same adaptations.

All vertebrates inherit the same sequence of DNA from their parents.
All vertebrates inherit the same sequence of DNA from their parents.
Question 16
Some mutations, or changes in the sequence of DNA, do not have any effect on the characteristics of the organism. Why is this?(1 point)
Responses

The protein built from this mutated sequence is deactivated by the cell.
The protein built from this mutated sequence is deactivated by the cell.

The immune system repairs the mutated sequence during development.
The immune system repairs the mutated sequence during development.

The cell recognizes mutations and ignores them when expressing the gene.
The cell recognizes mutations and ignores them when expressing the gene.

The mutated sequence still codes for the same amino acid.
The mutated sequence still codes for the same amino acid.
Question 17
What is typically studied when analyzing not-yet-born (or unhatched) animals?(1 point)
Responses

evolutionary theory
evolutionary theory

causal records
causal records

DNA sequencing
DNA sequencing

embryological development
embryological development
Question 18
What can scientists analyze to get a better understanding of how plants and animals evolved from a common ancestor?(1 point)
Responses

life cycles and behaviors
life cycles and behaviors

vertebrate embryos
vertebrate embryos

DNA molecules
DNA molecules

petrified bones and imprints of plants
petrified bones and imprints of plants
Question 19
How can embryos help scientists understand evolution?(1 point)
Responses

Embryos are frequently fossilized and illustrate change over time.
Embryos are frequently fossilized and illustrate change over time.

Embryos go through various stages that suggest the animal’s evolutionary process.
Embryos go through various stages that suggest the animal’s evolutionary process.

Embryos provide evidence for which life forms existed at the same time.
Embryos provide evidence for which life forms existed at the same time.

Embryos contain the code for all life on Earth.

1 answer

Here are the suggested answers for the questions you've provided:

Question 13
All vertebrate embryos have a tail and gill slits at some point during embryonic development. What does this suggest about vertebrates?
Response: These species share a common ancestor.

Question 14
Fossil A is found closer to the surface compared to Fossil B. Which of the following conclusions can be made based on this statement?
Response: Fossil B is most likely older than Fossil A.

Question 15
Vertebrate embryos all follow a very similar developmental process. Which statement could explain this similarity?
Response: All vertebrates inherit the same sequence of DNA from their parents.

Question 16
Some mutations, or changes in the sequence of DNA, do not have any effect on the characteristics of the organism. Why is this?
Response: The mutated sequence still codes for the same amino acid.

Question 17
What is typically studied when analyzing not-yet-born (or unhatched) animals?
Response: embryological development.

Question 18
What can scientists analyze to get a better understanding of how plants and animals evolved from a common ancestor?
Response: DNA molecules.

Question 19
How can embryos help scientists understand evolution?
Response: Embryos go through various stages that suggest the animal’s evolutionary process.

Feel free to ask if you need further clarification on any questions or concepts!