Compound weighing 115 g contains 68.3 g of carbon, 13.2 g of hydrogen, 15.9 g of nitrogen, and some amount of oxygen. What is the mass percent of oxygen in the compound?

What would be the best microscope to view living single-celled organisms in a sample of pond water?

If a child cannot maintain her balance, control her motor behavior, or coordinate her eye movements with bodily sensations, which part of the brain might be faulty?

Which of these is a behavior adaptation in birds? A sharp beaks B light bones C wings D migration

What potential problems might an organism have if it doesn't obtain enough protein in the food it consume

Which description is an example of a phenotype? A certain duck has a blue beak. A mutation occurred to a flower. Most cheetahs live solitary lives. both a and c

A male tree frog migrates to a new habitat with little ground vegetation and many tall trees. Jumping is the safest way for the frog to move from tree to tree.

Select the correct answer. Neurofibromatosis, a genetic disease caused by mutation on the NF1 gene, follows an autosomal dominant pattern of inheritance.

Which of the following is NOT a way a cell can increase its surface area A. decrease its volume B. add organelles C. let water out of the cell D. all of the above

Using a pH meter, you find that egg whites have a pH of nearly 8 and egg yolks have a pH near 6, if litmus paper turns blue in bases and red in acids, which part of eggs would turn litmus paper blue? A. both B. egg whites C. egg yolks D. neither

With all his gear neil armstrong weigh 360 pounds on earth when he landed on the moon he weighs 60 pounds why