The form of a fern that we are used to seeing is a
a. gametophyte and is haploid.
b. gametophyte and is diploid.
c. sporophyte and is haploid.
d. sporophyte and is diploid
D
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____ is the process by which diverging populations undergo natural selection in favor of enhanced pre-zygotic isolation
Fill in the blank with the appropriate word.
Oil-degrading bacteria are naturally present in the environment but cannot degrade an oil spill fast enough to avoid ecological damage. How can the actions of these bacteria be sped up?
a. Provide oil for them. b. Provide sugar as a carbon source. c. Provide nitrogen and phosphorus. d. Add water. e. Add NaCl.
Process, usually occurring within chloroplasts, that uses solar energy to reduce carbon dioxide to carbohydrate.
What will be an ideal response?
The necessary substances that a cell can't make on its own are called
A) carbohydrates. B) nitrogenous bases. C) vitamins. D) growth factors. E) amino acids.