If all trees have a characteristic life cycle that includes alternation of generations, then what has a life cycle that includes alterations of generations? Answer choices: - apple - trees - salmon - Spruce - insects - animals - Cane. - bees
trees

If sharpening a knife causes it to change shape, then what does sharpening a knife do? Answer choices: - change its material - make it stay the same - lowered energy cost - duplicate itself - Relieve pain - change its shape - change its color - It gets heated up
change its shape

Q: If using an engine requires burning flammable liquid, then using an what requires burning flammable liquid? Answer choices: - light bulb - engine - toaster - Decibels - cigars - barrel - Cooking - battery
A: engine

Question: If substances in the pituitary control the endocrine glands, then what do substances in the pituitary control? Answer choices: - To keep their body heat. - sweating - endocrine glands - temperature - preventing heat transfer - an organism's body - movement - Veins and arteries.
Answer: endocrine glands

*Question*
If coal is used for generating heat and can explode, then coal is used for generating heat and can what? Answer choices: - melt - explode - run - kill - heat - energy - stay warm - freeze
**Answer**
explode

(Q).
If pushing on the pedals of a bicycle cause that bicycle to move, then what do pedals usually cause a bicycle to do? Answer choices: - move diagonally - get started - move forward - stop - Movement - move backwards - kinetic energy - staying warm
(A).
move forward