Which of the following is an effect of organic matter on soil?

a.

improved soil structure

b.

decreased water retention

c.

increased nutrient loss

d.

all of the above

Energy is one of the underlying themes of science. Which of these best represents how the concept of energy will shape our future?

Which options describe Darwin's theory of natural selection? Select all that apply. Natural selection results in descent with modification. Evolution occurs because of natural selection. Natural selection occurs because of evolution.

How is genetic drift like molecular diffusion? Group of answer choices Both are the result of directed movements. Both are the result of directed movements. Both involve random events without regard to ultimate outcome. They are not alike.

Wich pair of molecules both contain carbon atoms?

Whats the difference by a transverse wave and a longitudinal wave?

A preterm newborn is noted to have hypotonia, apnea, bradycardia, a bulging fontanelle, cyanosis, and increased head circumference. these signs indicate the newborn has which complication

The organisms that breakdown organic wastes and remains of the dead into simpler substances that can be used by other organisms are known as

Technology can have good and bad affects. what is a bad effect spraying pesticides on crops with the use of airplanes?

Which statement below is false regarding ocean crust and continental crust? A: Ocean crust is more dense B: Continental crust is composed of only igneous rocks C: Ocean crust is younger D: Continental crust is older

Deer need food and water to survive. What are food and water for the deer population? carrying capacity limiting factors population growth scarce resources