If vision requires the pupil, then what requires the pupil? Answer choices: - olfaction - Summer - chemicals - hearing - bushes - touch - vision - Energy
vision

If heat is necessary for the survival of animals, then what is necessary for the survival of animals? Answer choices: - honey - acid rain - woods - warmth - genes - food - oxygen - heat
heat

Q: If pesticides can cause entire ecosystems to be destroyed, then pesticides can cause what to be destroyed? Answer choices: - Plant growth is reduced - swamp vegetation - most organisms - important habitats - entire ecosystems - one celled organisms - harmful substances - genetic diversity
A: entire ecosystems

Question: If cells have multiple repair mechanisms to fix damage to DNA, then what do cells have multiple repair mechanisms to repair? Answer choices: - Veins and arteries. - damage to DNA - a cuticle - animals - mammals - peachleaf willow - gastropod shells - an organism's body
Answer: damage to DNA

*Question*
If most animals with external skeletons and jointed legs are insects, then most animals with external skeletons and jointed legs are what? Answer choices: - homogenous - spiders - animals - mechanical - strong - octopus - insects - scorpions
**Answer**
insects

(Q).
If solid waste has a negative impact on the environment, then what has a negative impact on the environment? Answer choices: - cigarettes - animals - deforestation - rain - wind - Pesticides - Pollution - solid waste
(A).
solid waste