By the end of this century, it is estimated that the emission of CO2 will be double that of preindustrial levels
Indicate whether the statement is true or false
TRUE
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Very high solar energy input; temperature and moisture not limiting; high biomass, high total productivity; many species.
A. desert B. savanna C. taiga D. temperate grassland E. tropical rain forest
Which of the following microbial groups is MOST resistant to desiccation due to their cell wall?
A) gram-positive B) gram-negative C) mycoplasmas D) viruses
Successive cell divisions convert the zygote into a
multi-cell embryo during a. meiosis. b. parthenogenesis. c. embryonic induction. d. cleavage. e. invagination.
Which of the following is false about chlamydias?
a. they are intracellular pathogens b. they have a diminished or absent cell wall c. their spiral shape allows them to drill into tissues d. all of these are true