1.true or false: it may be possible to save a significant proportion of earth's biological diversity by establishing sustainable biological reserves at 25 locations on the globe that are especially rich in species.
2
a) the root means affection or love
b) the root means food or nourishment
c) the root means hoom or habitation
d) the root means true or good
-trophic
eu-
-philia
eco-
3.what is the difference between a habitat and an ecosystem?
4.what flows through an ecosystem?
5.which type of organism comes first in a food chain?
6.what kind of energy source directly supplies nutrients to producers?
7.which of the following is most likely to threaten the survival of a species?
8.imagine a food chain that goes from photosynthetic microorganisms through fish to seals to polar bears. which organism is most susceptible to extinction?
9.from what evidence have scientists calculated the background extinction rate?
Answers: 3
Biology, 21.06.2019 19:50
Which of the following statements about c4 carbon fixation is not true? a c4 carbon fixation is an adaptation for plants exposed to high light intensityb. c4 carbon fixation occurs in more plants than c3 carbon fixation.c c4 carbon fixation is more common in areas of high temperatures than c3 carbon fixation.d. c4 carbon fixation occurs in the inner cells of a leaf rather than the entire leaf.
Answers: 3
Biology, 21.06.2019 21:00
1. environmental factors, such as ph and temperature, can affect the function of an enzyme. a. true b. false 2. which of the following is an organic molecules (ex. vitamins) that an enzyme? a. coenzyme b. product c. active site d. substrate 3. how do enzymes effect the speed of a chemical reaction? a. they speed it up b. they slow it down c. they have no effect on the speed of a reaction 4. during a chemical reaction, an enzyme is used up so that it can only be used one time. a. true b. false 5. which of the following results from a chemical reaction that is catalyzed by an enzymes? a. active site b. product c. substrate d. coenzyme
Answers: 3
Biology, 21.06.2019 21:20
In what part of a chloroplast does glucose production occur? a. atp synthase b. photosystem ii c. photosystem d. stroma
Answers: 2
Biology, 22.06.2019 00:20
The buildup of sediments where a river empties into a slow-moving or nonmoving body of water is known as a/an
Answers: 1
1.true or false: it may be possible to save a significant proportion of earth's biological diversit...
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