The failure of chromosomes to separate during anaphase is called __________
A. synapsis
B. maternal effect
C. epistasis
D. nondisjunction
D
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A drawback of the morphospecies concept is that it cannot be applied to:
A. polymorphic species. B. species that are very similar in appearance. C. extinct organisms (e.g., fossils). D. polymorphic and similar-looking organisms. E. all of the answer options are correct.
You are being asked to apply your knowledge about the properties of water.
What will be an ideal response?
The four elements that make up more than 96% of the weight of living organisms are oxygen, carbon, hydrogen and
calcium.
Indicate whether the statement is true or false.Which of the following have thick secondary cell walls strengthened with lignin, and support plants like steel beams in a building?
A) parenchyma cells B) collenchyma cells C) sclerenchyma cells D) water-conducting cells