Because H2 levels in oxic environments are transient, it is likely that aerobic hydrogen bacteria shift between chemoorganotrophy and chemolithotrophy depending on levels of organic compounds and hydrogen in their habitats
Indicate whether the statement is true or false.
Answer: TRUE
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You inherited from your mom both her crooked nose and her recipe for chocolate chip cookies (both favorable traits). Which trait will be spread more quickly through the
A. the nose because it is a genetically based trait B. the recipe because it is a genetically based trait C. the nose because it can be passed on to all relatives D. the recipe because it can be passed on to all relatives E. They are both advantageous traits and spread at the same rate. F. It depends on if you are male or female.
Transcriptionally active genes are characterized by:
A. an increase in H1. B. the presence of bound nucleosomes at the promoter regions. C. the presence of specialized chromosome remodeling complexes. D. the absence of histone variants such as H2AZ and H3.3. E. All of these choices are correct.
In women, blocked oviducts can result from sexually transmitted diseases
a. True b. False
The most unique feature of the echinoderms is their:a
digestive system. b. nervous system. c. closed circulatory system. d. water vascular system. e. mantle.