How do marine polychaetes use chitin hardened body parts?
a. as an excretory organ
b. the chitin hardened tentacles, to move sand
c. to chew and digest prey
d. the chitin-hardened jaws, to capture prey
e. the chitin-reinforced bristles, for movement and chitin hardened jaws to capture prey
e
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Peroxisomes are examples of:
A. microbodies. B. ribosomes. C. chromosomes. D. nucleosomes. E. lysosomes.
The process of crossover is best defined as genetic recombination that occurs between ________.
a. non-sister homologous chromatids in meiotic prophase I b. sister chromatids in meiotic prophase II c. non-sister chromatids in meiotic prophase II d. sister chromatids in meiotic prophase I
Some methanogenic Archaea are capable of fixing nitrogen.
Answer the following statement true (T) or false (F)
The photosystems are involved in the light reactions of photosynthesis
Indicate whether the statement is true or false