At what week of development does the offspring begin to be called a fetus?
a. Week 16
b. Week 8
c. Week 2
d. Week 4
e. Week 32
b
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Cytokinesis in plants occurs as ________ and in animals as ________.
A) actin fibers pull the membrane inward until the two sides touch; the Golgi apparatus produces membrane-bound vesicles filled with materials to make the cell wall B) the Golgi apparatus produces membrane-bound vesicles filled with materials to make the cell wall; actin fibers pull the membrane inward until the two sides touch C) the centrosome produces membrane-bound vesicles filled with materials to make the cell wall; the Golgi apparatus produces actin fibers to pull the membrane inward until the two sides touch D) actin fibers interact to make the cell wall; the cleavage furrow pulls the membrane inward until the two sides touch E) the Golgi apparatus produces a cleavage furrow; actin fibers pull the membrane inward until the two sides touch
Which macronutrient serves a role in enzyme function support, as well as nutrient transport regulation?
a. magnesium b. potassium c. calcium d. nitrogen
If a mutant organism used mitosis to produce gametes, what would be the result of mating with a wildtype partner?
A. Progeny would be quadraploid, and almost certainly nonviable. B. Progeny would be triploid, and almost certainly nonviable. C. Progeny would be normal -- this is a common occurrence in some phyla. D. The resulting progeny would be identical twins. Clarify Question What is the key concept addressed by the question? What type of thinking is required? Gather Content What do you already know about gametes? What other information is related to the question? Choose Answer Given what you now know, what information is most likely to produce the correct answer? Reflect on Process Did your problem-solving process lead you to the correct answer? If not, where did the process break down or lead you astray? How can you revise your approach to produce a more desirable result?
Which \statement about genome sequencing is false?
A) The genomes of thousands of species have been completely sequenced. B) The first eukaryotic organism to have its genome sequenced was yeast. C) Most of the genomes that have been sequenced to date are eukaryotes. D) The genome of a mouse has been sequenced.