What survival advantage does a seed have that has enabled the seed plants to be the most successful of all plants?
What will be an ideal response?
Seeds contain immature sporophytes surrounded by a protective seed coat. They also contain stored food material. A seed can remain dormant until environmental conditions are such that the embryo stands a better chance for survival as compared with immediate germination. The stored food gets the seedling off to a “head start” so that growth and development of roots and shoots, the organs used to absorb and produce nutrients, take place rapidly.
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One reason to study DNA-protein interactions is because many proteins (e.g., regulatory proteins and proteins involved in replication and transcription) directly interact with DNA, and by understanding those interactions, we may be able to inhibit microorganism pathways in the future.
Answer the following statement true (T) or false (F)
True or False: If B = the benefit of a behavior to a recipient, C = the cost of the behavior of the donor, and r = the degree of relatedness between the recipient and donor, then if rB > C, altruism can evolve
A. true B. false
Thrush in a newborn's oral cavity becomes less frequent as the infant ages. What is the most likely reason for this?
A. The acquisition of normal microbiota prevents the overgrowth of yeast. B. The infant begins to produce antifungal antibodies. C. Vaccines given in early infancy prevent the development of thrush. D. The eruption of the teeth inhibits the growth of yeast.
A patient has a stroke that leaves him unable to hear. Where is the most likely location of the brain damage?
a. limbic association cortex b. prefrontal association cortex c. Wernicke's area d. temporal lobe e. somatosensory cortex