Acactus stem is used for storing water, and other animals eat cactus to get water. Given these facts, why do animals eat stems among the following options: - Animal survival - A transportation fuel - it keeps an organism warm - It gets more light - basic building blocks of life - Plants store liquids there - it needs them - Help plants grow
Plants store liquids there

Biomass is the total mass of organisms at a trophic level, and herbivores are the second trophic level and graze on plants. Given these facts, biomass is the total mass of organisms on a level such as what among the following options: - Energy - trees - Energy. - bottom of feet - herbivores - kinetic energy - animals - energy usage
herbivores

Plants have specialized reproductive organs, and flowers are a plant's reproductive organs. Given these facts, plants have flowers for what among the following options: - warmth - reproduction - hiding - eating - reproduce - seeing - survival - food and shelter
reproduction