Organisms that are radially symmetrical have ________ embryonic germ layers

A) two B) three C) four D) five E) six


A

Biology & Microbiology

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Most conifers are __________, meaning that they retain their leaves throughout the year

A. deciduous B. evergreen C. ephemeral D. dioecious E. monecious

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Realized heritability may be determined from artificial selection experiments

Indicate whether the statement is true or false

Biology & Microbiology

Lisa has a rare genetic defect that causes acute sun-sensitivity. Her mother has the defect, but her father does not. All

of Lisa’s siblings, two brothers and a sister, are also affected. All four siblings are married, but none of their spouses has the mutant gene. Draw a pedigree for this family. Identify and explain the most likely mode of transmission for this disorderWhat will be an ideal response?

Biology & Microbiology

Penicillin and streptomycin are commonly used in synergism because they display the same mode of action

Indicate whether the statement is true or false

Biology & Microbiology