You are presented with the question "What keeps mammals' metabolic rates high?" and the following answer choices: - gas - muscle - fur - sleep - water - Fe - food - ice Now knowing that mammals generate heat mainly by keeping their metabolic rate high and humans use food to generate body heat, choose the best answer.
food
(Question)
You are presented with the question "What causes an image to reflect?" and the following answer choices: - the sun - fibers - erosion - a wave - Light - heat - photons - forces Now knowing that an image in a mirror is formed by reflecting light and reflection is the bouncing of light off of a reflective surface, such as a mirror, choose the best answer.
(Answer)
Light
Ques: You are presented with the question "What does population size influence on a species?" and the following answer choices: - Quality of life - their migration pattern - their home - characteristics - Plant reproduction - their chance of living - their food preference - metabolic reaction Now knowing that population size influences the chances of a species surviving and survival is to live, to live means hope, choose the best answer.
Ans: their chance of living
(Q).
You are presented with the question "If an object reflects what toward the eye then that object can be seen" and the following answer choices: - observe it - sunlight - ultraviolet light - neutrons - Joules - photons - x-rays - positive Now knowing that if an object reflects light toward the eye then that object can be seen and light is made up of particles called photons, choose the best answer.
(A).
photons
Ques:You are presented with the question "Living things can be protected by" and the following answer choices: - foolish behavior - exoskeleton - shells - Quasars - coral reefs - malnutrition - layers of fat - pesticides Now knowing that insect bites cause harm to living things and pesticides kill insects and disease pathogens, choose the best answer.

Ans:pesticides
Question: You are presented with the question "Plants require what for survival?" and the following answer choices: - warm nights - Organic compounds - long winters - cool air - nutrients - sunlight - Energy. - cell hydration Now knowing that aplants require water for survival and water hydrates the cells, choose the best answer.
Answer:
cell hydration