#Question id: 19107
#Unit 8. Inheritance Biology
#Question id: 7699
#Unit 9. Diversity of Life Forms
In the phylogenetic trees, numbers represent species, and the same species are shown in both trees. Which two species are represented as sister species in Tree 2 but are not shown as sister species in Tree 1?
#Question id: 2429
#Unit 2. Cellular Organization
Which of the following statements is (are) true of actin assembly?
a. ADP-actin can assemble into filaments.
b. Actin (+) ends grow faster than actin (-) ends.
c. ATP-actin can assemble into filaments.
d. Toxins that alter the assembly of actin filaments have been used as tools to study actin in living cells.
#Question id: 289
#Unit 1. Molecules and their Interaction Relevant to Biology
Which of the following statements describes a covalent bond between Carbon and Hydrogen:
#Question id: 1858
#Unit 4. Cell Communication and Cell Signaling
Which of the following is an example of an anti-tumor vaccine?