Question

multiple choice question
an animal that resembles a small version of the adult at hatching or birth exhibits ____ development, whereas an animal that spends part of its life in immature stages, such as larvae, exhibits ____ development.
o indirect, direct
o incomplete; complete
o direct: indirect
o complete; incomplete

Explanation:

• Direct development: In direct development, the young (at hatching or birth) resembles a small - sized adult. There is no distinct larval stage. For example, in many mammals, the newborn has a similar body plan (though not fully grown) to the adult.
• Indirect development: In indirect development, the organism has a larval stage that is morphologically different from the adult. The larva often has a different lifestyle (e.g., feeding habits, habitat) than the adult. For example, in a butterfly, the larva (caterpillar) is very different from the adult butterfly in terms of morphology (worm - like vs. having wings) and feeding (caterpillars eat leaves, adult butterflies drink nectar).

Answer:

C. direct; indirect