Animal Social Behavior and Evolution

What is sociality in animals?

• When animals live alone and only interact for mating.

• When individual animals associate in groups and cooperate towards a shared goal.

• When animals only care for their own offspring.

• When animals fight off rivals to protect their territory.

Which of the following is a characteristic of eusocial animals?

• Individuals live alone and only interact for mating.

• Parents take care of their young for a short period.

• Many generations are alive at the same time, with extreme division of labor.

• Animals live together in a single place but do not cooperate.

What is altruism in the animal kingdom?

• When an animal acts aggressively to protect its territory.

• When an animal does something that benefits another at its own expense.

• When animals only help their direct offspring.

• When animals compete for resources within their group.

How can an individual animal increase its evolutionary fitness through inclusive fitness?

• By having as many offspring as possible.

• By competing with other individuals for resources.

• By supporting its non-offspring relatives.

• By living a solitary lifestyle to avoid competition.

What term describes the individual "mini animals" that make up a colonial organism like the Man O'War?

• Cells

• Organs

• Zooids

• Tissues

Which part of the Man O'War is responsible for secreting digestive proteins?

• Pneumatophore

• Tentacular Palpon

• Gastrozooid

• Gonodendron

What is a key evolutionary advantage of colonial organisms?

• They can easily hide from predators.

• They can grow and adapt indefinitely.

• They can move faster through water.

• They require less food than individual organisms.

In colonial organisms like bryozoans, where does natural selection primarily apply?

• To the individual zooids.

• To the entire superorganism (zoon).

• To the reproductive cells only.

• To the environment they live in.