Which of the following is NOT a characteristic of most animals?

A. They have Hox genes.
B. They are heterotrophic.
C. They have an extracellular matrix of proteins such as collagen.
D. They have cell walls.
E. They have a nervous system.


D. They have cell walls.

Biology & Microbiology

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Random segregation of chromosomes (by itself) means that a particular daughter cell

a. has some paternal chromosomes and some maternal chromosomes. b. has only paternal chromosomes. c. has only maternal chromosomes. d. has chromosomes containing genes from the paternal and maternal chromosomes. e. has some paternal chromosomes and some maternal chromosomes and has chromosomes containing genes from the paternal and maternal chromosomes.

Biology & Microbiology

Bacterial translation is inhibited by ________ RNA, which is complementary to a portion of a specific mRNA

Fill in the blank(s) with correct word

Biology & Microbiology

To help identify phylogenetic relationships scientists use 

To help identify phylogenetic relationships scientists use 

Biology & Microbiology

Which of the following bacteria are the most prevalent in the human gut?

A. cyanbacteria B. staphylococci C. Borrelia D. Bactericides

Biology & Microbiology