Which of the following events happens first in the development of a new organism? A. A sperm fertilizes an egg to form a zygote. B. A morula is formed. C. A blastocyst implants into the uterine wall. D. A zygote undergoes mitosis.

We know today that atoms cannot be divided into smaller parts true or false

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If i wanted to talk to someone who would i talk to

A group of friends began talking about environmental issues. Every time they got together, they would talk and the group began to divide into sides, one side saying that the environment was in danger, and the other side saying it was not.

A ball is thrown straight upward with a velocity of 24m/s How much time passes before the ball strikes the ground? Disregard air resistance.

Which of the following statements is true regarding the use of refrigerants? a. if your equipment is recovery only, refrigerant that is removed from vehicles should be poured down the drain b.

When would the velocity of a wave traveling in a medium change? A - only if a property of the wave changes B - only if a property of the medium changes C - if a property of both the wave and the medium changes D - never

If the moon did not have an atmosphere what would happen to it

a 2.0 kg mass moving to the east at a speed of 4.0 m/s collides head-on in a perfectly inelastic collision with a stationary 2.0 kg mass. how much kinetic energy is lost during

How did people years ago find out which side of a magnet was north and which was south?