Nematocysts are used for ____
a. reproduction
b. excretion
c. muscle action
d. circulation
e. defense
ANSWER: e
You might also like to view...
Which two groups of primates share the closest relatedness?
a. Chimpanzee and hominids b. Lemurs and Old World monkeys c. Tarsiers and orangutans d. Orangutans and Old World monkeys e. Gibbons and hominids
Water covers about ______ percent of the Earth's surface.
A. 33 B. 40 C. 50 D. 70 E. 80
Large biological molecules are synthesized by removing
A) covalent bonds. B) carbon. C) peptides. D) water. E) oxygen.
TRAIT SPECIESABCDE111011210010310011411111511111600010 The table shows the distribution of traits (A-E) in six extant species (1-6). A "0" indicates the ancestral condition, and a "1" indicates the derived condition. Which species has the greatest number of ancestral character states (pleisiomorphies)?
A. 1 B. 2 C. 3 D. 4 E. 5 F. 6