How long does it take blood to circulate through the body

What are some aquatic organisms that live in cold water temperatures?

Ascience research group is testing a new type of plant food. one trial is conducted in a controlled experiment. the data from the trial show that the plant that received the new food grew faster than the control plant. the group announces that the new plant food makes plants grow faster. what is the main weakness in this scientific claim?

Genes that come together with different alleles are heterozygous. homozygous. genotype. segregated.