What is a signal to which an organism responds

A group of college students working on a project on bio-gas have found some bacteria in the bio-gas plant. These bacteria can utilize methane as their source of energy and do not need oxygen for their survival. What kind of bacteria could they be?

What behavioral effect may have occurred as humans began to select for tameness? A. Dogs became more independent. B. Dogs lost their instinct to live in packs. C. Dogs no longer worked in cooperative groups. D.

The Hardy-Weinberg principle is written as an equation: p 2 + 2 pq + q 2 = 1. What does the q represent? frequency of the dominant allele the size of the population frequency of the recessive allele the size of the gene pool

Capillary action is the result of which of the following? a. cohesion between water and other molecules b. cohesive and adhesive properties of water c. adhesion between water molecules d. a high heat capacity in water

What causes klebsiella urinary tract infection?

How many homologous chromosome alignments are possible for independent assortment during meiosis? one two three four

What kind of tests are used to analyze data for experimental treatments?

Luis is doing an experiment on plants. He wants to find out if they grow taller when they are given more water.

Which is the last step that occurred in the speciation of the galápagos finches? a. establishing genetic equilibrium b. founders arrived c. geographic isolation d. ecological competition?

Intact skin and mucous membranes: First line of defense. 2. : Second line of defense. 3. : Third line of defense. 4. : Innate defense system. 5. : Adaptive defense system.