In early embryonic development, the cells start to differentiate based on

their location, or layer

amniotic fluid produced by the placenta

hormones secreted by the uterus

chemicals secreted by the blastocyst

Which of the following is a good strategy when it comes to desserts

Oak and maple trees, chipmunks, white-tail deer, and black bears emerging from hibernation are all organisms that may be found in which biome

Which of the following statements is true regarding a basic amino acid? a.) the hydrophilic r group of a basic amino acid will be located on the interior of a protein b.) the positively charged r group of a basic amino acid could bind dna c.) the r group of a basic amino acid would only be able to form covalent bonds with other molecules d.) a basic amino acid would be considered both polar and hydrophobic e.) all of the above