Refer to Figure 50-2. The function of the structure labeled 6 is:
a. to secrete an alkaline fluid that neutralizes the acids of the vagina.
b. to produce a nutritive fluid for the sperm.
c. to provide a place for maturation and storage of sperm.
d. to secrete mucus that lubricates the penis.
e. to maintain sperm at a low body temperature.
C
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Answer the following statements true (T) or false (F)
1. Myosin is a motor protein that walks along intermediate filaments. 2. The flagellum is composed of a 9 + 2 arrangement of microtubules called the axoneme. 3. The Golgi apparatus is much like a warehouse; it processes proteins and sorts them for delivery to certain parts of the cell. 4. Materials move in and out of the nucleus via endocytosis and exocytosis. 5. Both lysosomes and peroxisomes are important for detoxifying substances in the cell.
Which of the following would be considered a +/- relationship?
a) commensalism b) predation c) mutualism d) dominance
Which species is considered to be the most ancient?
A. Homo erectus B. Australopithecus afarensis C. Australopithecus sediba D. Homo sapiens E. Sahelanthropus tchadensis
When the method is perfected, it will be possible to transfer "healthy" genes into cystic fibrosis patients via aerosol inhalants to "cure" this genetic disease. Is this type of gene transfer an actual cure or is it a treatment? In other words, could this person still pass along cystic fibrosis genes?
What will be an ideal response?