________, a chemical that hardens cell walls and supports terrestrial plants, is found in all plants EXCEPT ________
A) Lignin... bryophytes
B) Cellulose... bryophytes
C) Cellulose... ferns
D) Lignin... ferns and bryophytes
A
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Osteocytes are bone cells. Collagen fibers and calcium salts are found in abundance between and among the osteocytes. The collagen and calcium salts are _____
A) components of the plasma membrane of osteocytes B) part of the extracellular matrix C) extensions of the endoplasmic reticulum D) deposited by the circulatory system but not associated with the osteocytes
Which classification includes animals that eat only meat?
a. herbivore b. carnivore c. omnivore d. decomposer e. photosynthetic organism
The resistance to reinfection with measles virus following recovery from measles infection is called __________.
A) naturally acquired passive immunity B) natural selection C) innate immunity D) naturally acquired active immunity E) artificially acquired active immunity
You have been asked by your instructor to go to the greenhouse and select a plant that exhibits secondary growth. Which of the following plants would you choose?
A) Daffodil B) Pansy C) Rose bush D) Bermuda grass E) Strawberry