(correct answers only) The two water biomes are the marine biome and the ocean biome.
a. true
b. false
17
A lichen is a combination of an alga and a fungus growing together.
a. true
b. false
18
Musk oxen, lichens, and lemmings would be found in a grassland.
a. true
b. false
19
Oaks, maples, beeches, and hickories are usually found in a
tropical rain forest.
a. true
b. false
20
Winter temperatures may drop below freezing in a desert.
a. true
b. false

Which best describes an adaptation that could be found in a fish that lives in a slow-flowing stream? the ability to attract prey by glowingextra gills, for oxygen extractionthe ability to grow largerextra fat, for warmth

Match each symbol with its description.

Which of these is true of the cytoplasm of an unfertilized egg? a. it is an unevenly distributed mixture of mrna, proteins, organelles, and other substances. b. it does not contain substances that are important in directing development. c. these substances are supplied by the sperm. d. it does not contain substances that are important in directing development. e. development is directed solely by the surrounding cells. f. it is a homogeneous mixture of mrna, proteins, organelles, and other substances. g. it does not contain substances that are important in directing development. h. these substances are produced by the dna of the fertilized zygote.