An organism's genotype describes its specific combination of alleles. for example, an aa genotype is heterozygous for the a allele. an organism's phenotype describes a visible trait, such as tall height, brown eyes, or black fur. how does genotypic variation occur?

Darrel conducted an experiment with the following procedure: fill two cups with ice water. place an uninflated balloon snuggly onto your left index finger. blow a little air into an identical balloon, and place it onto your right index finger. place both fingers into the cups of ice water. darrel noticed that his right finger felt warmer in the ice water than did his left finger. which of the following does the experiment show? a. air is a good radiator of heat. b. air is a good insulator of heat. c. air is a good conductor of heat. d. air is a good convector of heat.

What is the following best defines climate?

What part of the brain is highlighted in the diagram below?