Where in the stem cell of an embryo are the instructions located for how to build the heart
a- amino acids
b-mitochondria
c-endoplasmic reticulum
d-deoxyribonucleic acid
apex

Did you know that a blue wales tongue weighs more than an elephant?

Cattle with brown fur and cattle with white fur will produce a reddish roan calf . when examined closely, the calf show about an even number of brown hairs and white hairs that give a reddish appearance when viewed from far away. the fact that both the brown fur allele and the white fur allele are expressed equally in the offspring is an example of

Which of the following describes the difference in stimuli required to detect a difference between the stimuli? a. just noticeableb. signal detectionc. subliminald. top down