Most strains of gonococcus do not survive long outside the body
Indicate whether this statement is TRUE or FALSE.
TRUE
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A form of natural selection favoring the spread of alleles that promote behaviors that help close relatives is called ____ selection
Fill in the blank with the appropriate word.
Organisms that are characterized by being unicellular, photosynthetic, and having double shells made of silica are known as
A. dinoflagellates. B. diatoms. C. kelps. D. euglenoids. E. foraminifera.
What is the advantage of radial symmetry in cnidarians? a. It allows for larger availability of food
b. It can be cut multiple ways. c. It allows for the growth of protective tentacles. d. It allows for cnidarians to respond to their environment from all sides, equally.
Which of the following is NOT true about the discovery of DNA structure by Watson and Crick?
a. From the structure of DNA, it was clear how genes encoded information for proteins. b. Determining the structure of DNA almost immediately revealed how chromosomes duplicate. c. X-ray pictures of DNA were helpful in deducing its structure. d. Hydrogen bonds were shown to hold the two strands of DNA together. e. Because of base pairing, there always is an equal number of G and C, and A and T.