Invertebrate chordates include __________ and __________, both marine filter-feeders. Fill in the blank(s) with the appropriate word(s)
tunicates; lancelets
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The evolution of horses involves primarily anagenesis
Indicate whether the statement is true or false.
what general category of disinfectant alters membrane phospholipids in bacteria?
What will be an ideal response?
It is estimated that 4.6% of SNPs and about 17% of all genes can be defined as pleiotropic. Based on this finding, which of the following should a consumer of genetic information keep in mind?
A) A test identifying a gene for a disease might actually be a test for a different disorder instead. B) Any variant that we gain information about might in the future be found to associate with a more stigmatizing condition. C) A physician might be treating the major condition but not notice even more deleterious outcomes. D) The classification of my genetic disorder might be incorrect. E) Sequencing of the candidate gene might find the wrong expected functional significance.
You have isolated a cell that is unable to produce cholesterol for its cell membranes. Which of the following defects is this cell most likely to have?
A) The cell will not be able to regulate the transportation of substances into and out of the cell. B) The cell will burst as a result of osmosis. C) The cell will be unable to transport nutrients. D) The cell will not be able to communicate with other cells. E) The cell membrane will not have the correct fluidity.