Unpigmented hair on a fetus is called ________.

What will be an ideal response?


downy
downy hair
lanugo

Anatomy & Physiology

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Microfilaments do not

A) anchor the cytoskeleton to membrane proteins. B) help determine the consistency of cytoplasm. C) produce cell movement, with myosin. D) consist of the protein called actin. E) distribute chromosomes to opposite ends of a dividing cell.

Anatomy & Physiology

The rubrospinal tracts originate in the

A) primary motor cortex. B) vestibular nuclei. C) thalamus. D) red nuclei. E) reticular formation.

Anatomy & Physiology

The alternate forms of any one gene are called

A) homologous. B) homozygous. C) heterozygous. D) autosomes. E) alleles.

Anatomy & Physiology

An increase in bone growth is promoted by which hormones?

a) calcitriol and parathyroid hormone b) calcitonin and calcitriol c) human growth hormone and parathyroid hormone d) parathyroid hormone and insulin e) All of the other selections are correct.

Anatomy & Physiology