____ is an important food additive that is obtained from giant kelp
a. Carageenan
b. Alginate
c. Agar
d. Dulse
e. Diatomaceous earth
B
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According to the fluid mosaic model of cell membranes, the fluid part of the model refers to ____
a. the constant movement of the hydrophilic tails in the interior of the membrane b. a thin layer of water found sandwiched between the two layers of phospholipids c. the phospholipid molecules which vibrate, spin, and exchange places within the same layer of the bilayer d. the free movement of cholesterol molecules within the membrane e. the frequent flip-flop of phospholipids from one side of the membrane to the other
Some asteroids show evidence of surface activity such as lava flows
a. True b. False Indicate whether the statement is true or false
The collection of genes and the corresponding alleles is a population's
A. recessive traits. B. genotype. C. gene pool. D. phenotype. E. dominant traits.
Plantae Terrestrial, multicellular, photosynthetic organisms
Anthophyta Vascular plants with flowers, fruits, and seeds Monocotyledones Monocots. Flowering plants with one seed leaf (cotyledon) and flower parts in threes Commelinales Monocots with reduced flower parts, elongated leaves, and dry 1-seeded fruits Poaceae Grasses with hollow stems; fruit, a grain; and abundant endosperm in seed Zea Tall annual grass with separate female and male flowers mays Only one species in genus -- corn . Based on the accompanying table, one characteristic used at the class level of classification for corn is: a. separate male and female flowers. b. the presence of a single seed leaf. c. flower parts in fours or fives. d. flowering vascular plants. e. tall annual grasses.