Earth's tectonic plates A. are constantly in motion. B. move only once. C. move only up and down. D. do not move.

What is the definition of heterotroph

One type of personal health monitor measures the amount of time you spend in REM sleep. A. True B. False

Following carbon atoms around the Calvin cycle, The net reaction of the Calvin cycle is the conversion of CO₂ into the three-carbon sugar G3P.

Individual members of the same species are genetically very different because of a process called which creates gametes

In chickens, comb shape is determined by genes at two loci (R, r and P, p). A walnut comb is produced when at least one dominant gene R is present at one locus and at least one dominant gene P is present at a second locus (genotype R_ P_).

1. true false Carbon atoms form the building blocks of most living things.

Inhibiting enzymes involved in cell wall synthesis leads to which of the following? A) cell death by osmotic lysisB) a reduction in protein synthesisC) the incomplete synthesis of the bacterial cell wallD) a reduction in the amount of usable energy

In the 20th century where did the most ecologically destructive oil spill in the US

Which of the activities listed below are functions of the Lymphatic System? 1 transports lipids to the blood 2 transports lipid-soluble vitamins to the blood 3 drains excess interstitial fluid from tissue spaces and returns it to the blood 4

Under which circumstances must facilitated diffusion be used instead of simple diffusion?