The oldest megafossils of vascular plants belong to the phylum Rhyniophyta
____________________ Indicate whether the statement is true or false.
T
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Which of the following statements regarding fern alternation of generations is not correct?
A. Ferns have a dominant, diploid sporophyte. B. The fern gametophyte is very small, but very hardy. C. Most fern gametophytes are capable of producing both male and female gametes. D. Chemical signals released by gametophytes producing eggs cause other, nearby gametophytes to also produce eggs. E. The diploid zygote will grow to become the sporophyte.
____ tissue allows the body to detect and respond to internal and external changes
a. Nervous b. Adipose c. Epithelial d. Connective e. Skeletal muscle
Which of the following is an example of in vivo gene therapy?
A) Using retroviruses to deliver therapeutic genes directly into a patient B) Pharmacogenomics C) Using retroviruses to deliver therapeutic genes into cultured cells D) Injecting stem cells into a patient E) None of these choices
How does the evolutionary species concept differ from the phylogenetic species concept?
What will be an ideal response?