What do you call a collection of objects which interact?A. a system
B. the biosphere
C. Earth
D. organisms

Answers

Answer 1

Answer: the answer would be A, a system because all the others are just again parts of a system.

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What might happen to the organisms in the food web below if the number of phytoplankton and vegetation drastically decreased? The small fish and wading birds would be affected. Only the small fish would be affected. The small fish, bivalves, and invertebrates would be affected. The entire food web would be affected.

Answers

Answer: The entire food web

Explanation: Because the small fish eat the plankton and the birds eat the fish, and other things eat the birds etc. etc., technically if the number of phytoplankton and vegetation dropped, it would cause everyone else to have a lack of food

Answer:The entire food web

Explanation: I took the test

What is the meaning of speed?

Answers

It is the rate at which an object moves.
WELCOME :/

How FAST it is.
NEVER confuse this with velocity.

Why is the apparatus left for 15 minutes at each new light intensity before starting measurements

Answers

The apparatus is the instrument to perform various experiments in the lab. The apparatus is usually made up of glass.

These are the following apparatus used in the lab:-

Test tubes
Beaker
Funnel
Cone
Stove

Apparatus left for 15 minutes at each new light intensity before starting measurements to sterilize and make it pure and get the error-free readings.

Different light intensities are sensitive to the various bacteria and help to kill them.

For more information, refer to the link:-

brainly.com/question/17068050

pressure increases with depth toward the center of Earth. In which layer would you expect pressure to be the greatest?

Answers

Pressure would be the greatest in the outer core.

Describe what happens when you step on a pin ( this is about the nervous system )

Answers

The pin is the stimulus and your skin is the receptor. Your skin sends an electric impulse which travels in a sensory neuron. The electrical impulse travels over synapses by going through a chemical reaction. It travels to your central nervous system. as a motor neuron, it then is an effector which your body shows the response to. The response is you quickly lifting your foot up.

If a certain test follows a normal curve, most of the scores will fall __________.