Low sperm count may result in an insufficient amount of enzyme to clear a path through the ____to the egg plasma membrane.

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


zona pellucida

Biology & Microbiology

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A scientist using systematics relies on which of the following?

Biology & Microbiology

Which phylum includes organisms that have bilateral symmetry and protostome development?

a. Porifera b. Echinodermata c. Cnidaria d. Platyhelminthes e. Chordata

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Fungi

a. are producers. b. usually have life cycles in which the diploid phase dominates. c. include Focus and liverworts. d. are typically marine forms. e. are generally saprobes

Biology & Microbiology

alpha hemolysis

What will be an ideal response?

Biology & Microbiology