What organic molecule has up to 4 levels of structure

If steelhead were removed from the web, what would you predict would happen to the numbers of tuft-weaving chironomids? A. They would decrease. B. They would stay the same. C. They would increase.

The cells in the stem of a plant often have thicker cell walls than the other parts of the plant in order to A. allow more light to penetrate through the stem. B. secrete water and oxygen through the stem. C increase gas exchange in the stem.

What percent of our atmosphere is made up of gases other than oxygen and nitrogen?

What gas does a plant release in photosynthesis? If you answer this u are very kind

If it is determined that the spiral organ of corti is the source of the problem, which region of the organ would be defective

Why can eukaryotes carry out more specialized functions than prokaryotes can? A) eukaryotes have more organelles B) Prokaryotes have more organelles C) eukaryotes are bigger D) prokaryotes are bigger

How might mendel's conclusions have differed if he had studied two traits determined by alleles carried on the same chromosome?

A healthy immune system depends on an adequate supply of proteins that bind to and neutralize harmful invaders. what are these proteins known as?

Which process happens during interphase? g3 meiosis prophase s

How are radioactive probes useful in DNA fingerprinting