Which of the following organisms spends its life cycle in the haploid state?

A) bacteria
B) fungus
C) Drosophila
D) trees
E) humans


A) bacteria

Biology & Microbiology

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Which of the following represents a density-independent cause for the extinction of wooly mammoths?

a. human hunting b. reduction of habitat c. climate change d. disease

Biology & Microbiology

Deafness may be caused by malformation of the stapes bone. This may occur by...

A. failure of Meckel's Cartilage to degenerate properly. B. failure of paraxial mesoderm and neural crest cells to merge properly and form the stapes. C. failure of Reichert's Cartilage to degenerate properly. D. failure of the stapes to arise from the incus. E. failure of the stapes to arise from the tympanic membrane.

Biology & Microbiology

The above figure represents which of the

following chromosomal changes:a. inversion b. deletion c. duplication d. translocation e. aneuploidy

Biology & Microbiology

When an owl catches and kills a mouse for food, the owl is

a) a scavenger b) a predator c) prey d) a parasite

Biology & Microbiology