On a phylogenetic tree, each node (branchpoint) represents a divergence event, and the length of the branches represents the number of molecular changes that have taken place between the nodes.
Answer the following statement true (T) or false (F)
True
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Which of the following is primarily responsible for the maternal effect?
A. Sperm cells B. Oocytes C. Nurse cells D. Placenta
In a flower, an anther is typically at the tip of a(n) ____
a. calyx b. receptacle c. carpel d. filament e. ovule
The creosote bush exhibit ____, an adaptation that evolved as a response to their biotic environment
a. chemical defenses to deter carnivores b. 9,chemical defenses to deter herbivores c. drought tolerance d. high success rates of seed germination e. low rates of clonal asexual reproduction
The bases are bonded to what part of the backbone of the DNA molecule?
a. the 1' carbon atom of the sugar molecule b. the 2' carbon atom of the sugar molecule c. the 3' carbon atom of the sugar molecule d. the 4' carbon atom of the sugar molecule e. the 5' carbon atom of the sugar molecule