Which of the following is the most numerous phylum on Earth?
a) Actinopterygii
b) Chordata
c) Platyhelminthes
d) Arthropoda
e) Annelida
Answer: d) Arthropoda
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Ribosomes consist of ________ separate subunits that come together as part of the initiation process and dissociate immediately after termination.
A. four B. five C. two D. three
Free energy change is a measure of the rate of reaction.
Answer the following statement(s) true (T) or false (F)
When species-specific MHC proteins on xenotransplants trigger a complement-mediated rejection in the recipient, a(n) ____________________ results
Fill in the blank(s) with correct word
What are homologous traits?
a. characteristics that are similar in two species because they inherited the genetic basis of the trait from their common ancestor b. characteristics that are different in two species because they inherited the genetic basis of the trait from a different ancestor c. characteristics that are similar in two species because they are used for the same function d. characteristics that are similar in two species because two species look similar