Some beetles and flies have antler-like structures on their heads, much like male deer. The existence of antlers in beetle, fly, and deer species with strong male-male competition is an example of ________.

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#Question id: 24446

#Unit 13. Methods in Biology

What is the purpose of holter moniter in EKG ?

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#Question id: 32588

#Unit 2. Cellular Organization

Cytoplasmic dynein, itself a huge protein complex, requires association with a second large protein complex which is requires to translocate organelles effectively, called:

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#Question id: 12429

#Unit 10. Ecological Principles

Flycatcher birds that migrate from Africa to Europe feed their nestlings mostly with moth caterpillars. The data presented show the mean dates of egg laying, hatching, and fledging of flycatcher young, and the 1980 and 2000 peak mass of caterpillars.

Which of the following organisms is incorrectly paired with its trophic level? 

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#Question id: 878

#Unit 1. Molecules and their Interaction Relevant to Biology

Can a peptide bind more strongly to an unfolded than the same protein in a folded state?

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#Question id: 8849

#Unit 9. Diversity of Life Forms

Humans can digest starch but not cellulose because