Fish and clams are similar in that both use ________ for gas exchange.
A. the moist surface of their skin
B. the mantle
C. lungs
D. tracheal tubes
E. gills
Answer: E
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Answer the following statements true (T) or false (F)
1. Tagmata are segments of the body that represent two or more previous body segments fused together. 2. Scorpions do not lay eggs but rather give birth to live young. 3. Millipedes have a thousand legs whereas centipedes have only a hundred legs. 4. The diversification of flowering plants was responsible for the diversification of insects.
The ________ connects the larynx with the bronchi
Fill in the blank(s) with correct word
Briefly describe the differences in the digestive tracts of animals with an incomplete and a complete gut.
What will be an ideal response?
Which of the following does not occur before a eukaryotic mRNA is exported from the nucleus?
(a) The ribosome binds to the mRNA. (b) The mRNA is polyadenylated at its 3? end. (c) 7-methylguanosine is added in a 5?-to-5? linkage to the mRNA. (d) RNA polymerase dissociates.