For a plant, carbon and nitrogen are ________.
A) macronutrients
B) micronutrients
C) minerals
D) compost
Ans: A) macronutrients
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Molluscs with a tubular shell and sheath foot are:
a. scaphopods. b. gastropods. c. bivalves. d. cephalopods. e. nudibranchs.
Deciduous trees are the dominant plant in which type of biome?
a. tropical forest b. temperate forest c. chaparral d. savanna
Vestigial organs
a. did not have a function when they first developed, but do so today. b. are similar in many organisms. c. must have evolved individually in different organisms. d. are not found in present-day organisms. e. include the human appendix and wisdom teeth and a snake's hipbones.
The ________ is the minimum energy required before two molecules can be successful in producing a reaction
Fill in the blank with correct word.