In diffusion, movement of particles across a membrane is driven by differences in

A. force.

B. concentration.

C. size.

D. shape.

Do plant and animal cells have the same structures?

What are volcanoes and describes the type of volcanoes

A student feels stress and anxiety after seeing a traffic accident. Immediately, an increased heart rate and extra energy with the release of adrenaline is felt. Which of the following systems of the body are working together? A.

Most of the cells i the human body are Haploid Dipoloid

What is the genotype of a white-eyed male fruit fly?

When dust and ash particles from a volcanic eruption block out sunlight and reduce solar radiation, earth experiences the. This results in temporary climate cooling

Which of Jupiter's moons is volcanically active? Io Ganymede Europa Callisto

Risk assessment depends on

DNA is genetic material that makes up living things, and folic acid plays an important role in the formation of DNA. Jon wants to study the effect of folic acid on DNA formation in microbes.

Your alien friend from planet Xenon is visiting and wants to learn how to breed pea plants. You show your friend a recent batch of pea plants with purple flowers that you grew by crossing plants that had purple flowers with plants that had white