You are presented with the question "An object can be seen when it reflects something that comes from what?" and the following answer choices: - Mercury - Neptune - Eyes - rays - skin - Mars - UV - Sun Now knowing that if an object reflects light toward the eye then that object can be seen and light comes from the sun, choose the best answer.
Sun
You are presented with the question "What causes objects to attract?" and the following answer choices: - heat energy - mussels - insects - animals - magnetism - electrically - hormones - power Now knowing that magnetism can cause objects to repel each other and magnets attract and repel, choose the best answer.
magnetism
Q: You are presented with the question "pushing on the pedals of a bike cause what?" and the following answer choices: - electromagnetic energy - Pollution - friction reduction - kinetic energy - decreases its bodily water - mechanical - get started - Heart rate Now knowing that pushing on the pedals of a bike cause that bike to move and wheels reduce friction with the floor to help cars move, choose the best answer.
A: friction reduction
Question: You are presented with the question "what lack a centralized nervous system?" and the following answer choices: - Pesticides - neurons - barnacles - alpacas - insects - fish - humans - starfish Now knowing that echinoderms lack a centralized nervous system and starfish and sea urchins are also echinoderms, choose the best answer.
Answer: starfish
*Question*
You are presented with the question "What mostly contain the instructions for a single protein?" and the following answer choices: - resistance activities - Veins and arteries. - A Greek letter - sensory neurons - fur seals - parasites - units of heredity - colors of the spectrum Now knowing that most genes contain the instructions for a single protein and genes are the basic unit of heredity, choose the best answer.
**Answer**
units of heredity
Q: You are presented with the question "What is provided by vanes rotating in an electric fan?" and the following answer choices: - heat energy - cool breezes - torrential rains - Animal survival - kinetic energy - loud storms - energy - hot winds Now knowing that the vanes rotating in an electric fan causes air to move and fans move air, providing a cooling breeze, choose the best answer.
A: cool breezes