Biology.... muliple choice questions?

[miguel g]

1. A most striking characteristic of animals that distinguishes them from the members of the other kingdoms is that members of the animal kingdom
Aare capable of more complex and rapid movements than members of the other kingdoms.
Bpossess cells with rigid cell walls.
Cinclude both aquatic and terrestrial species.
Dcontain choanocytes within their tissues.
2. Specialized cells
Acan carry out their tasks more effectively than cells that must do many tasks.
Bare found only in chordates and echinoderms.
Calways operate independently of all other cells.
DAll of the above
3. The most important advantage to multicellularity is that
Aorganisms can grow to a larger size.
Borganisms can produce a larger number of cells.
Corganisms can become a “higher” species.
Dindividual cells can specialize in one life task.
4. As an animal develops, the ectoderm becomes the
Aheart. Bskin and nervous system.
Ctissue that lines the gut. Dmuscle