Which two important things do many economics systems not considered to have value?

A. natural resources and human labor

B. supply and demand

C. capital and consumption

D. good and services

i was thinking A

Describe the common tissues and structures found in accessory organs.

Which of the following correctly identifies the producers in the forest food web shown below?

To warm up before a run, David begins by completing quad and hurdler's stretches. Choose the answer that accurately evaluates his choice of warm-up activities. a) These activities are appropriate because they prepare muscles for intense movement.

Behavior is defined as the actions and reactions of human beings and other animals. true or false

Which one of the following statements is accurate? A. Agriculture has been challenged by the use of selective breeding. B. Gymnosperms provide humans with the most food. C.

Salt deposits form on a car in the winter. Over time, the salt covers more of the car. Is the salt alive? a. Yes, salt deposits are alive because they maintain their structure. b. No, salt deposits are not alive because they do not reproduce. c.

Belinda recently completed a treatment program for breast cancer. For the last year, she took a drug treatment that worked to interfere with rapid cell division; what type of cancer treatment did Belinda undergo?

What do scientists call the theory that the universe will shrink in the future?

Which types of stress on the earths crust is due to tectonic plates colliding?

This is my last question. A certain location with many tall trees experiences a wildfire for several days. Which of the following will most likely happen in the location? Pollution will decrease. Bird population will increase.