Obligate ______ live at low pH extremes and sometimes maintain the low pH by releasing strong acid.
A) Acidophiles
B) Halophiles
C) Alkalinophiles
D) Osmophiles
A) Acidophiles
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Antibody and antigen are held to one another by covalent bonds
Indicate whether this statement is true or false.
Using an ecosystem with which you are familiar (deciduous forest, grassland, desert, freshwater pond, etc.) draw a diagram of a food chain, using at least four organisms at different levels. Indicate in your diagram the ultimate source of energy. As much as possible, account for all of the energy as it moves through the chain
What will be an ideal response?
Crossing over is one of the most important
events in meiosis because a. it produces new combinations of alleles on chromosomes. b. homologous chromosomes must be separated into different daughter cells. c. the number of chromosomes allotted to each daughter cell must be halved. d. homologous chromatids must be separated into different daughter cells. e. all of these reasons are true
A woman with a college education is more likely to have a large family than a woman with an eighth-grade education
Indicate whether the statement is true or false