Cephalization, the clustering of neurons and interneurons in the anterior part of the animal, is apparent in _____

A) cnidarians
B) Planaria
C) sea stars
D) invertebrate animals with radial symmetry


B

Biology & Microbiology

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Biological membranes are one dimensional fluids

__________________ Indicate whether the statement is true or false.

Biology & Microbiology

Which of the following conditions is necessary to maintain the Hardy-Weinberg equilibrium?

A. random mating B. gene flow C. genetic drift D. mutations E. sexual selection

Biology & Microbiology

The first group to exhibit an amniotic egg was the ____.

A. birds B. amphibians C. reptiles D. bony fish E. mammals

Biology & Microbiology

When one microbe's metabolic activities create favorable conditions for another microorganism, this is referred to as (competition/cooperation/facilitation).

Fill in the blank(s) with the appropriate word(s).

Biology & Microbiology