The major diversification of fishes occurred in the Devonian period; since that time fish have changed little.

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


False

Biology & Microbiology

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Which of the following are characteristics of biomes? Check all that apply.  

_____  A biome is a large geographical area with distinctive plant and animal groups.  _____  Biomes are only located at certain longitudes and latitudes. _____  The climate and geography of a region determines what type of biome can exist in that region. _____  Each biome consists of only one type of ecosystem. _____  Temperate evergreen forest is one of the major biomes.

Biology & Microbiology

A population with an abundance of resources and no limiting factors will experience 

A. a lag phase. B. exponential growth. C. death. D. a stable population.

Biology & Microbiology

What is the difference between a first messenger and a second messenger? Give an example of each. What will be an ideal response?

Biology & Microbiology

The wobble hypothesis states that:a

more than one ribosome can bind to an mRNA molecule. b. some amino acids are coded for by more than one codon. c. there is more than one stop codon in the genetic code. d. a particular amino acid may be linked to more than one type of tRNA molecule. e. certain tRNA anticodons can pair with more than one codon sequence.

Biology & Microbiology