This term is used to describe the physical appearance of an organism based on their genetics. A
genotype
B
phenotype
C
alleles
D
genes
E
I do not know at this time.

Is a measure of the different types of organisms in a community. question options: tertiary secondary primary none of the above

The greenhouse effect a. something that has occurred for millions of years b. an unnatural phenomenon caused by humans that maintains earths temperature range. c. the results of the differences in the angle of the suns rays d. an unnatural phenomenon that causes heat energy to be radiated back into the atmosphere

All phases of matter may have a fixed mass