MYP Biology Topic 5.6 Life Cycles Questionbank

In a life cycle featuring complete metamorphosis, what is the specific role of the pupal stage?

If a species' sexual life cycle failed to include meiosis, what would be the chromosome number of the offspring after two generations of reproduction, assuming the original parent was diploid ( $2n$ )?

In the transition between life cycle stages, __________ act as the internal messengers that travel through the organism to initiate physiological and structural changes.

Gametes are always __________, meaning they contain half the usual number of chromosomes found in somatic cells.

Why might direct development be favored in species where the young are born or hatched in a protected environment, such as a womb or a leathery egg?

To provide a period of rapid feeding and growth

To act as the stage where gametes are produced

To facilitate the radical internal and external transformation from larva to adult

To allow the organism to disperse to new habitats before becoming an adult

It allows the organism to skip the reproductive stage

It ensures that the offspring do not compete with the parents for food

It provides a steady path to adulthood without the energy-intensive radical changes of metamorphosis

It allows the organism to change its body plan based on the environment

MYP Biology 5.6 Life Cycles Questionbank

MYP Biology 5.6 Life Cycles Questionbank

MYP Biology 5.6 Life Cycles Questionbank

MYP Biology 5.6 Life Cycles Questionbank

MYP MYP Biology Topic 5.6 Life Cycles Questionbank