People are encouraged to exercise after recovering from a heart attack.
Suggest one reason why.

Which of the following are false concerning microbes? a. microbes generate oxygen through photosynthesis.b. the primary role of microbes on the planet involves causing disease in animals and humans.c. microbes produce vitamins in the intestines.d. microbes play a role in breaking down waste and decomposing dead organisms.

What type of competition exsist between two species. turtles and fish

Why did rutherford say that bombarding atoms with particles was like "playing with marbles" what