The two hormones involved in seed germination and seed dormancy are
A) auxin and ethylene.
B) gibberellin and auxin.
C) ethylene and cytokinin.
D) abscisic acid and gibberellin.
E) cytokinin and auxin.
D
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________ are organisms that are unable to regulate their body temperature.
Fill in the blank(s) with the appropriate word(s).
Which progression represents the correct hierarchy of organization in the human body?
a. cells ? tissues ? organ systems ? organs b. cells ? tissues ? organs ? organ systems c. tissues ? cells ? organs ? organ systems d. tissues ? organs ? cells ? organ systems e. tissues ? cells ? organ systems ? organs
Suppose you are presented with a tissue sample that contains long rows of cells surrounded by parallel bundles of collagen and elastin fibres. What is that tissue most likely to be?
a. cartilage b. blood c. fibrous connective tissue d. adipose tissue
Which of the following is not an advantage of molecular phylogenetics as compared to morphological phylogenetic methods?
A. A single gene can provide a lot of information B. Nucleotide sequences are clearly delineated, so unlike morphological characters, are unambiguous C. Molecular data is easy to use in mathematics and statists D. It doesn't require any specialized equipment