Consider the following list of animals: giant squid, earthworm, fish, snail, tapeworm, coral, and sea star. The two that belong to the same phylum are the _____, and their phylum is _____.
Fill in the blank(s) with the appropriate word(s).
Answer: giant squid and snail; Mollusca
You might also like to view...
Cell differentiation occurs due to ____
a. unequal cytoplasmic divisions b. the removal of different genes in different cell types c. polarization of the cell d. the presence of the X and/or Y chromosome in the cell e. changes in gene expression in different cell types
A squirrel living in a park bisected by a busy street passes on a mutation to its offspring that allows them to judge the speed and distance of passing cars more accurately based on the vibration they cause in the ground. Over several generations, the percentage of squirrels expressing this mutation increases equally on both sides of the street. What principle does this demonstrate?
a. founder effect b. genetic drift c. microevolution d. equilibrium
Most of the plant species we grow for food are the result of _______________ speciation.
Fill in the blank(s) with the appropriate word(s).
What is the name of the small circles of DNA that occur in bacteria in addition to the main circular chromosomal DNA molecule?
a. plasmids b. plastids c. transformants d. plasmitrons