During the Cambrian Explosion, what trait became much more prevalent in animals?

Question

During the Cambrian Explosion, what trait became much more prevalent in animals?

a) Autotrophy

b) Bilateral symmetry

c) Cnidocytes

d) Having 4 limbs

e) Gastrovascular cavities

The existence of evolutionary trends, such as increasing body sizes among horse species, is evidence that

a) a larger volume-to-surface area ratio is beneficial to all mammals.

b) evolution always tends toward increased complexity or increased size.

c) in particular environments, similar adaptations can be beneficial in more than one species.

d) evolution generally progresses toward some predetermined goal.

Which of the following groups of plants lacks a vascular system?

a) Gymnosperms

b) Monilophytes

c) Bryophytes

d) Angiosperms

e) Lycophytes

Which of the following is a key innovation from the evolutionary history of insects (hexapoda)?

a) Chelicerae

b) Book lungs

c) Cuticle

d) Gills

e) Wings

Explanation / Answer

During the Cambrian Explosion, what trait became much more prevalent in animals?
d) Having 4 limbs

The existence of evolutionary trends, such as increasing body sizes among horse species, is evidence that
c) in particular environments, similar adaptations can be beneficial in more than one species.

Which of the following groups of plants lacks a vascular system?
c) Bryophytes

Which of the following is a key innovation from the evolutionary history of insects (hexapoda)?
e) Wings

Related Questions

Navigate

• Browse (All)
• Browse D
• Subjects

Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.