What organelle in muscle cells was affected most during exercise?

How is the flow of matter and energy through an ecosystem connected to the carbon and nitrogen cycles?

What form of deafness is caused by disease to the three tiny bones of the inner ear?

Why were outbreaks and deaths from outbreaks more common before the 1900s

Which feature distinguishes slime molds from fungi? 1. Slime molds are heterotrophs. 2. Fungi are decomposers. 3. Slime molds are able to move. 4. Fungi reproduce by spores.

The heart is a muscular organ that pumps blood, Blood that contains waste materials is brought to the heart by blood vessels. This blood enters the and then moves down. The presence of the prevents the backflow of blood inside the heart

What object in our solar system has the greatest gravitational pull, and why?

How could changing one nucleotide of DNA (one letter) change a protein?

What effect does food color have on the amount of food fish eat

An object with a mass of 2000 g accelerates 8.3 m/s2

As the earth formed, the force of gravity increased due to increased mass. What effect did this increased gravity have on the forming planet