Sex-Linked traits are recessive traits generally carried on the X chromosome. Females have two X chromosomes, so they need to have the gene on both X chromosomes to show the trait. If only one X chromosome has the gene, the female is a carrier. A male only has one X chromosome and a Y chromosome. This means that the male only needs one X chromosome with the gene to show the trait. X X What are the chances they will have a son? 74= 50% What are the chances they will have a daughter ?14 = _50_%

economic impact of malaria is estimated to cost africa $12 billion every year. this figure factors in costs of health care, absenteeism, days lost in education, decreased productivity due to brain damage from cerebral malaria, and loss of investment and tourism.

the answer is d. chordata

digestion

it excretes wastes

the answer is true when observing or determining population size, a direct observation is use, in which each organism is counted in a population or in an area. one benefit of this measure is that you get the exact population count but it will take a long time to  determine  the  size  of a  population.