HELP PLEAS Why are males affected by sex linked traits more often than females? 1. Males have only one X chromosome, so recessive traits are expressed with the inheritance of one recessive allele.
2. Mutations on a Y chromosome can amplify the effects of an X-linked mutation.
3. Y chromosomes in males often have more mutations than X-chromosomes in females.

Exit what always affects measurement error in an experiment? a. investigator bias b. variability in nature c. instrument precision d. misreading the instrument

What sentence best supports the statement that hormones are involved in the regulation of homeostasis? a. the hormone erythropoeitin increases the production of red blood cells when oxygen levels are low. b. the hormone oxytocin promotes labor contractions of the uterus during childbirth. c. the hormone melatonin induces sleep and its production is slowed by exposure to light. d. the hormone cortisol suppresses the immune system and is produced when the body is under stress.

Which feature of a human community is similar to a niche in a biological community