There are several species of plain-looking, brownish-gray moths that, when they spread their wings, have large bright red or orange eye-shaped circles on their hind wings
What is this adaptation called, and what advantage does it give to the moth?
This is startle coloration. It enables the moth to scare away an approaching predator at the same time that it flies away.
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The function of the glycoprotein spike on some viruses is to:
a. allow viral entry into the host cell. b. protect the nucleic acid. c. prevent drying out and the destruction of the virus. d. stabilize attachment for the lipid envelope.
Skin cancer usually occurs in layer A, which is the __________, and is most often caused by
_____.
a. epidermis; UVA b. epidermis; UVB c. dermis; UVA d. dermis; UVB
All of the following are true about M protein except
A) It is heat- and acid-resistant. B) It is a protein. C) It is found on fimbriae. D) It is found on Streptococcus pyogenes. E) It is readily digested by phagocytes.
Ignoring all other factors, what kind of day would result in the fastest delivery of water and minerals to the leaves of an oak tree?
A) cool, dry day B) very hot, dry, windy day C) warm, humid day D) cool, humid day