A major function of keratin is to:
a. absorb UV radiation.
b. insulate the body.
c. nourish sensory receptors.
d. synthesize fats and waxes.
e. create a diffusion barrier.
e
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These anchorage junctions interact with intermediate filaments and anchor cells to the extracellular matrix.
A. adherens junctions B. desmosomes C. hemidesmosomes D. focal adhesions E. fibronectin
Poriferans are ____
a. Herbivores b. filter feeders c. Scavengers d. Predators e. carnivores
In humans, normal skin pigmentation is influenced by a dominant gene (C), which allows pigmentation to develop
All individuals who are homozygous for the recessive allele (c) are unable to produce an enzyme needed for melanin formation and are therefore referred to as albino. Two normal parents produce an albino child. What are the chances that the next child will be an albino? What will be an ideal response?
What is an adaptation (in the context of evolutionary theory)?
What will be an ideal response?