Thatch palm and curly palm are thought to have diverged from an ancestral species by ________

a. temporal isolation
b. gamete incompatibility
c. mechanical isolation
d. hybrid inviability


a

Biology & Microbiology

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Scientists have found that extracellular matrix components may induce specific gene expression in embryonic tissues such as the liver and testes. For this to happen there must be direct communication between the extracellular matrix

and the developing cells. Which kind of transmembrane protein would most likely be involved in this kind of induction? A) integrins B) collagens C) actins D) fibronectins

Biology & Microbiology

In lineages that moved onto land, gills were replaced by lungs; kidneys became better at conserving __________, and

the circulatory system became more efficient. Fill in the blank(s) with the appropriate word(s).

Biology & Microbiology

A blood vessel is indicated by the letter ____

a. A b. B c. C d. D e. E

Biology & Microbiology

Moist heat sterilization at 100°C kills all of the following EXCEPT ________.

A. viruses B. protists C. bacterial endospores D. fungal spores

Biology & Microbiology