Recently discovered fossils reveal that many dinosaurian ancestors of birds had ____
a. boneless tails
b. toothless mouths
c. enlarged forelimbs
d. wings
e. feathers
ANSWER: e
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Trophic-level transfer efficiency averages about
A. 1%. B. 25%. C. 33%. D. 10%. E. 0.1%.
Which of the following adaptations occurs with aerobic exercise training?
What will be an ideal response?
Current classification of prokaryotes is based on
A. occurrence of transverse binary fission. B. type of colony formation. C. ability to stain the cell wall with Gram stain. D. sequencing of proteins, DNA, and RNA. E. morphology of flagella.
How does the size of fungal hyphae contribute to their ability to decompose detritus?
A. Fungal hyphae have a low ratio of surface area to volume, so they are able to absorb more nutrients. B. Fungal hyphae have high ratio of surface area to volume, so they are able to absorb more nutrients. C. Fungal hyphae have a low ratio of surface area to volume, so they are able to secrete more digestive enzymes into the surrounding environment to break down detritus. D. Fungal hyphae have a high ratio of surface area to volume, so they are able to secrete more digestive enzymes into the surrounding environment to break down detritus.