If insects have special excretory structures, then what has a special excretory structure? Answer choices: - Silk plants. - Insects. - a fish - animals - plants - Architecture structures. - barnacles - Corset structure.
Insects.

If condensation causes rain to form, then what does condensation cause? Answer choices: - water - emptiness - sandstorms - guilt - heat - rain - gas - H20
rain

If animals that begin their lives in water breathe with gills then move elsewhere breathe with lungs, then animals that begin their lives in what breathe with gills then move elsewhere breathe with lungs? Answer choices: - breathe - water - oxygen - a fish - underground - salt flats - air - jungle
water