Which sentence properly uses the word phenotype?

a. each of the homologous chromosomes on the gametes had matching phenotypes, meaning the offspring were the same.

b. the phenotype of each of the offspring was the result of an adaptational trait that them survive in the environment better than their parents did.

c. even though the parent plants had a phenotype of yellow seeds, they produced some offspring with green seeds, indicating they were heterozygous.

d. even though the parent plants had yellow seeds, the second generation proved their phenotype was heterozygous.

Diego conducted an experiment to find out what kind of ball bounces the highest when dropped from a five-foot platform. he used a golf ball, a tennis ball, and a soccer ball. he dropped each ball from the balcony once. diego recorded his observations after each drop. what can diego do to best improve the reliability of his results? a) drop each ball from the platform three more times b) record his observations in more than one unit c) write at least two scientific questions after the experiment is complete d) share his results with other people who have done similar experiments you for the !

Vaccines are weakened forms of disease causing microorganisms, which are given to patients to prevent disease. after the vaccine is administered, the immune system responds by creating a(n) to recognize the a.) antibody, antibiotic b.) antigen, antibody c.)antibiotic, antibody d.)antibody, antigen

Crossing over is a method of (blank)?