Francisco wrote these notes on one of the scientists who contributed to cell theory: 1838 Studied plants Used a microscope Concluded that plants are made of cells Who are these notes about? Virchow Schleiden Leeuwenhoek Schwann

The genetic information is coded in DNA by the regular alternation of sugar and phosphate molecules. The genetic information is coded in DNA by the regular alternation of sugar and phosphate molecules. True False

Throughout the Earth's history, there have been long periods of time when glaciers and ice sheets cover large parts of the Earth. What are these periods called?

Describe the process by which most fossils are formed in rock

If you remove the biological (etiologic) contamination hazards through destroying microorganisms and their toxins, what mechanism of decontamination did you use?

Consider the three sets of gels below. Each set shows an RNA gel and a protein gel for the products of the same gene. For each gel, "WT" indicates the normal wild type products and "Mut" indicates the mutant products.

Which statement describes the reaction for cellular respiration? The equation is carbon dioxide + water → glucose + oxygen + water and energy is required in the form of light O The equation is glucose + oxygen carbon dioxide + water and energy is

When is energy needed to move substances across the cell membrane

Which term describes the highest pressure against the walls of the blood vessels?

How might more than one agent of physical weathering operate in the same place

What is the primary source of energy for food chains in an ecosystem? decomposers producers consumers the sun