Red blood cells divide every 4 months. Calculate the number of red blood cells the human body loses due to natural cell death each second. Assume there are 30 days in 1 month

Are substances released into the environment that in excess amounts cause damage

2. in dragons, a gene on chromosome 1 codes for wing color and a gene on chromosome 2 codes for body color. draw out the stages of meiosis for these two chromosomes from a dragon that is heterozygous for both traits. define your alleles. what are all the possible allele combinations of the gametes produced?

What does it mean for a cell membrane to be selectively permable