During primary succession, debris from rivers and runoff accumulates in a body of water, causing it to
fill in at its margins.
Indicate whether the statement is true or false.
ANS: F, aquatic
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After fertilization occurs in a flowering plant, the ovary becomes a(n) ____
a. gametophyte b. ovule c. seed d. fruit e. endosperm
The replacement model is supported by
evidence from a. the fossil record. b. DNA sequencing data from mitochondria. c. DNA sequencing data from chromosomes. d. global climate change patterns. e. all of these.
CO2 and H2O will not form glucose on their own
because a. CO2 does not contain sufficient energy. b. H2O does not contain sufficient energy. c. neither CO2 nor H2O contain sufficient energy. d. the concentration of CO2 is too low in the atmosphere. e. the bonds of CO2 and H2O are too stable to be broken without an input of energy.
Slash-and-burn agriculture affects global warming by ___
a. adding more methane gas to the environment, thereby increasing greenhouse gases b. removing methan producers from the environment, thereby decreasing greenhouse gases c. removing photosynthetic organisms from the environment, thereby increasing CO2 in the environment d. removing photosynthetic organisms from the environment, thereby decreasing CO2 in the environment e. no effect will be seen in global warming or greenhouse gases from this type of agriculture