Psychrophiles and thermophiles
What will be an ideal response?
•Psychrophiles
-slow growth
-heavy metal transport
-metal resistance proteins
•Thermophiles
-Biofilms
-Lithotrophs
-Symbionts
•Thioautotrophic symbionts
-Redox of inorganic compounds
-H2S (electrons)
-Reduce carbonates
•Can have photosynthetic bacteria!
-Chlorobium (green sulfur bacterium)
-How do they get energy?
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Which of the following has been correlated
with the ability of rats to cope with stress as adults? a. A nurturing mother. b. The number of siblings they have. c. The temperature they are raised in. d. The altitude they are born at. e. All of these.
There is an autosomal gene that controls baldness, and its expression is sex-influenced. The gene for
baldness (B) is dominant in males but recessive in females. In females, the allele B1 for nonbaldness is dominant over the gene for baldness. If heterozygous, nonbald woman marries a nonbald man, what will be the appearance of their children? Work out the possibilities for each sex. What will be an ideal response?
Normal microbiota help humans by the following ways, except
A. preventing harmful bacteria from colonizing our epithelial tissues. B. helping us digest food. C. synthesizing essential nutrients. D. influencing our immune function. E. providing nutrients to the nervous system.
Resource partitioning would be most likely to occur between allopatric populations of species with similar ecological niches.
Answer the following statement true (T) or false (F)