Chromosomes are made from proteins and what other molecule?

A student observes a leaf epidermis under a microscope. it has many stomata but they all appear closed. this epidermis was most likely from:

Which cell is released during ovulation?

The release of? From a rock is one of the example of an agent of physical weathering

Understanding what you do about the structure of DNA so far, do you think that every organism's DNA will look and act the same? Why or why not?

What "trait" determines whether two animals belong to the same species? A. Their physical appearance B. Their ability to breed with one another C. Their environment they live in D. Their evolutionary relationship to humans

Carla is using a fertilizer that contains nitric acid. How is nitric acid classified?

Over Hydration/low sodium levels are a problem with which system?

Which option associates a type of animal cell with the genetic condition of another kind of animal cell?

Who Viewed moving objects from pond water under his microscope and named them "animalcules

Which of the following cycles tracks the movement of water in the hydrosphere?