Speciation events that occur when the geographic ranges of the populations involved overlap are termed ________

Fill in the blank(s) with correct word


sympatric

Biology & Microbiology

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A line transect would probably be the preferred method to quantify the population density of ______.

A. birds B. lions C. fishes D. trees E. butterflies

Biology & Microbiology

Which of the following is not true of the main structural forms of actin?

A) Actin filaments may form a filament network (gel). B) Actin monomers may form actin filaments or G-actin protein complexes. C) Actin filaments are severed to form filament bundles. D) Capped filaments are made from actin filaments. E) Actin filaments form filament bundles.

Biology & Microbiology

Which of the following is NOT a characteristic of a morphogen?

A. a morphogen will only elicit effects in areas where it is at a high enough concentration B. morphogens can be distributed asymmetrically throughout a cell C. morphogens can be secreted to act on neighboring cells D. morphogens can cause cell death E. morphogen gradients are always established in the oocyte

Biology & Microbiology

The most abundant protein found in the extracellular matrix of animal cells is _____.

-collagen -pectin -cellulose -hemoglobin

Biology & Microbiology