How do fern sperm reach the archegonium for fertilization?
a. using multiple flagella to follow chemoattractants released by the archegonium
b. unusually among vascular plants, it is the archegonium that seeks out the sperm
c. they are ejected from the xylem in jets of water toward nearby gametophytes
d. the fern sperm and archegonium develop within the same strobili
a. using multiple flagella to follow chemoattractants released by the archegonium
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Two species of spiny anteaters (echidnas) and the duck-billed platypus are the only known living members of the ____ mammalian lineage.
a. Strepsirhini b. monotremes c. Rodentia d. Haplorhini e. marsupials
Which geological timescale contains the greatest number of years?
A. Periods B. Epochs C. centuries D. eras E. Decades
Answer the following questions true (T) or false (F)
1. In chemiosmosis, protons funnel through ATP synthase from an area where they are more concentrated to an area where they are less concentrated. 2. The Entner-Doudoroff pathway is a less efficient alternative to glycolysis which likely evolved early in the history of life to catabolize glucose. 3. A bacterial culture which is growing under conditions that only allow for fermentation will grow at the same rate as a culture of the same species growing under conditions which allow for aerobic cellular respiration, all other conditions being identical.
What number process does incubation correspond with?
What will be an ideal response?