True/False: proteins that speed up the rate of reactions in living things are substrates

1. Nervous systems are required by animals to respond to stimuli and have complex senses such as taste, touch, sight, smell, or sound. These are carried by nerves to and from the brain and spinal cord.

Urine culture and sensitivity is a laboratory test used to identify the cause of a urinary tract infection true or false

Which molecular formula corresponds to this model of a chemical compound? (black = carbon; red = oxygen; white = hydrogen) Cz (OH) 4 C2H204 C₂H4O2 C4H₂O2

Why couldnt water vapor have come to the earth when it was created? a. All the water vapor was directed to Mars. b. The atoms forming water were too light to stay in the inner Solar System and were blown out by the solar winds. c.

What are the basic building blocks of DNA and RNA? A. nucleotides B. phosphorous C. proteins D. sugar

Which ratio between primary neuron and secondary neuron would allow for the greatest receptive field sensitivity?

Which of the following is NOT generally associated with a thunderstorm? A. tornado B. lightning C. dry air

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_).

Why does DNA replication happen before Meiosis I but not before Meiosis lI

What genotypes would be produced by crossing a grasshopper with both color stripes and one with yellow stripes