Which of the following statements about asexual reproduction is NOT true?
A. A large number of offspring can be produced in this way in a short time.
B. Asexual reproduction occurs with only one parent.
C. Asexual reproduction is less commonly used by vertebrates.
D. Asexual reproduction can occur by budding or by division and regeneration.
E. Asexual reproduction produces variation that allows the species to adapt quickly to changing environmental conditions.
Answer: E
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You are a forester charged with increasing productivity in a South American forest newly planted with pines from Oregon
You believe that the southern forest lacks the fungal diversity needed by the North American pines, and that this lack of fungi is affecting the pines' productivity, but you have no evidence to support your ideas. To count how many fungal species were present in the Oregon forest, which methodology would you choose? A) Count all the plant species and multiply by six, as David Hawksworth did when determining the ratio of fungal to plant species in England. B) Collect all the fruiting structures (mushrooms, morels, etc.) found above ground. C) Do direct sequencing on representative soil samples from across the forest. D) Expose the trees to radiolabeled carbon dioxide and then collect the soil samples with the greatest radioactivity and do direct sequencing.
Lectin binds to certain carbohydrates to begin the activation of the classical complement pathway.
Answer the following statement true (T) or false (F)
Which class contains members that, due to their high activity and resulting need for lots of oxygen, have a closed circulatory system?
a. Bivalvia b. Scaphopoda c. Cephalopoda d. Gastropoda
The cell type that breaks down fibrous connective tissue is termed __________________?
Fill in the blank(s) with the appropriate word(s).