Jenna is trying to construct a pedigree for the occurrence of red hair in her family. She has two sisters, one older and one younger, and Jenna is the only one in her family that has red hair. What will be components of Jenna's pedigree?

The phylogenetic tree illustrates the relationship between humans and our closest living relatives. the tree was based on biochemical comparisons, including dna and amino acid sequences. according to the biomolecular data, we could infer that

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.

The pronunciation aid that determines the stress placed upon a syllable is the