What does a hydrologist study?

Unlike animal cells, plant cells have cell walls that make them rigid. Which organelle, other than the cell wall, also plays a vital role in providing rigidity to plant cells? A) Nucleus B) Chloroplast C) Central vacuole D) Endoplasmic reticulum

What is overproduction? An individual produces more waste than it can dispose of. The species produces more waste than can be supported by the ecosystem. An individual produces more young than it can feed and nurture.

If tomatoes a fruit wat is ketchup?

A researcher is studying the effect of sleep on aggression, thinking that less sleep will lead to more aggression. She has some people sleep 6 hours per night, some people sleep 3 hours per night and some people sleep as much as they want.

What happened to the structure of protein when it was heated? How would this affect the ability of a protein to function?

I just had bladder cancer surgery. i have a balloon stent. do i need to wear a bag or can i just remove the cap and urinate on my own

A student is measuring the effects of an electric circuit on a compass, and he is testing to see if increasing the current will cause the compass needle to change its direction faster.

What is the first amniote?

What was the first period of the Paleozoic era? A. Ordovician B. Siberian C. Cambrian D. Precambrian

What makes up the atomic weight of an atom?