Question

Question 4

Animals in the phylum Mollusca:

Question 4 options:

	a) have a body plan divided into a foot, a visceral mass, and a mantle.
	b) all have only simple nervous systems and sensory organs.
	c) are found only in aquatic habitats.
	d) often secrete a shell made of calcium carbonate.

Question 5

The phylum Arthropoda:

Question 5 options:

	a) contains the insects, spiders, and nematodes.
	b) is the most diverse animal phylum in terms of species.
	c) must shed their endoskeletons in order to grow.
	d) is one of the only animal groups to have colonized terrestrial, aquatic, and aerial habitats.

Question 6

Animals:

Question 6 options:

	a) only undergo sexual reproduction.
	b) coordinate muscle movement using their nervous systems.
	c) directly produce male and female gametes by meiosis.
	d) rely on cell walls for support.

Answer 1

Animals:

*Animals undergo anly sexual reproduction

*The nervous system of animals coordinate the muscle movements.

*The cell divison meiosis directly produce the male and female gametes.

*Animal cell does not have the cell wall to rely on.