During a controlled experiment, no fewer than 2 factors are tested at one time.

True

False

A substance that speeds up a rate of a chemical reaction I called

Which of the following describes part of a phenotype

What is the carbon in CO2 used to make

Scientist use past experience or evidence to make blank about what will happen in the future

A primary consumer would receive about 10%90%1%0.1% of the original energy that enters an ecosystem from the Sun.

What is the best distinction between birds and other animals? A birds eat seeds B birds have amniote eggs C bird have feathers D birds can fly

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