Test on Animal Reproductive Strategies and Development

Question 1: Individuals displaying a Type II survivorship curve have the same chance of dying at any age.

A. Ano

B. Ne

Explanation: Type II survivorship curves are characterized by steady survivorship and steady mortality at all ages, meaning individuals have the same chance of dying at any age.

Question 2: Which of the following characteristics are associated with a Type I survivorship curve, according to the provided study materials?

A. High survivorship and low mortality in young individuals.

B. Low survivorship and high mortality in old individuals.

C. Steady survivorship and steady mortality at all ages.

D. It is characteristic of r-strategy species like frogs.

Explanation: The study materials state that Type I survivorship curves are characterized by "High survivorship / low morality in young individuals" and "Low survivorship / high mortality in old individuals." Steady survivorship at all ages describes a Type II curve, and Type III curves are associated with r-strategy species like frogs, not Type I.

Question 3: The formation of a zygote occurs when the motile egg joins with a sperm.

A. Ano

B. Ne

Explanation: Fertilisation is the joining of the nucleus of an egg and a sperm to form a zygote. The sperm are motile and able to swim, but eggs do not move.

Question 4: Which statement accurately describes the use of reproductive structures for sperm transfer during mating in vertebrates, according to the provided materials?

A. Birds and reptiles primarily use a cloaca for sperm transfer.

B. Mammals commonly utilize a cloaca for sperm introduction.

C. The penis is the primary organ for sperm transfer in both birds and mammals.

D. Reptiles exclusively use a penis for internal fertilization, unlike birds.

Explanation: The study materials state that 'Most birds and reptiles mate using a cloaca – a single opening located in the lower abdomen. During mating the males and females line up their cloacas for the transfer of sperm.' It also clarifies that 'The males of virtually all mammals have a penis to introduce sperm into the female.'

Question 5: The provided study materials indicate that a plantation is characterized by an obscured view of its species.

A. Ano

B. Ne

Explanation: The study materials consistently state that a plantation should have 'A clear view of the species'.