In the first stage of cell reproduction, the _____________ disappears.
Fill in the blank(s) with the appropriate word.
Answer: nucleus
You might also like to view...
Consider a community in which the vaccination rate for measles is 99 percent. Ryan, a 2-year-old with leukemia, has not received the measles vaccination because of his immunocompromised status. Ryan is unlikely to get measles because
A. the measles virus does not typically affect children with leukemia. B. measles has been completely eradicated and is no longer a threat. C. there is substantial herd immunity in his community. D. he is protected by antibodies from his mother that crossed the placenta.
What is the origin of the energy that animals acquire by eating plants or other animals?
A.) carbohydrates B.) sunlight C.) heat D.) sugars E.) fats
A nondrug substance made to look like a real drug
A) Ecosystem
B) Informed consent agreement
C) Epidemiologic studies
D) Critical thinking
E) Homeostasis
F) Metabolism
G) Placebo
H) Theory
I) Hypothesis
J) Adaptive trait
Males of the fly species Drosophila bifurca are only a few millimeters in length, yet they hold the world record for sperm length, with sperm being 50mm long
Males produce only ca. 100 sperm over the course of their lives, as such large sperm are very costly to produce. One hypothesis to explain such large sperm size is postcop-ulatory sperm competition. Which of the following are reasonable approaches to test this hypothesis? a. test whether the order in which multiple males mated with the same female correlates to the number of offspring sired by each male b. examine the physical location of male sperm in the female reproductive or-gans via microscopy c. document fertilization success in crosses between a single male and a single female d. test whether the degree of sperm competition in related Drosophila species correlates with sperm size e. A, B, and D