Which two biomes are sometimes converted by humans to a desert?

a. Coniferous forests and grasslands
b. Woodlands and grass lands
c. Savannas and tundra
d. Tropical rain forests and savannas
e. Woodlands and deciduous forests


b

Biology & Microbiology

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An endosperm develops when the

a. pollen grain begins to form. b. pollen grain sticks to a stigma. c. sperm fertilizes the central cell. d. sperm fertilizes an egg

Biology & Microbiology

Which statement about cytokinesis is true?

a. In animals, a cell plate forms. b. In plants, it is initiated by furrowing at the membrane. c. It immediately follows the G1 phase of the cell cycle. d. In animal cells, actin and myosin play an important role. e. It is the division of the nucleus.

Biology & Microbiology

Asexual fungal spores that are not enclosed within a spore-bearing sac, but form from a special fertile hypha are called _______.

A) Sporangiospores B) Condia C) Zygospore D) Ascospore E) Basidiospore

Biology & Microbiology

"Green revolution" plants caused many ecological problems.

Answer the following statement true (T) or false (F)

Biology & Microbiology