Biology, 25.07.2019 14:40 igotit1234
What effect does eutrophication have on aquatic ecosystems? a.)it prevents sunlight from reaching aquatic life below the water’s surface. b.)it negatively impacts aquatic vegetation but is beneficial for all aquatic animals. c.)it decreases carbon dioxide concentration, which is harmful for aquatic animals. d.)it lowers the concentrations of nitrogen and phosphorous available to marine animals.
Answers: 1
Biology, 21.06.2019 20:00
Aresearcher has developed two stains for use with seed plants. one stains sporophyte tissue blue; the other stains gametophyte tissue red. if the researcher exposes pollen grains to both stains, and then rinses away the excess stain, what should occur? a) the pollen grains will be pure red.b) the pollen grains will be pure blue.c) the pollen grains will have red interiors and blue exteriors.d) the pollen grains will have blue interiors and red exteriors.
Answers: 1
Biology, 22.06.2019 02:30
Which list is in order from simplest to most complex? a bacteria - virus - plant - protist b protist - bacteria - virus - plant c virus - bacteria - plant - protist d virus - bacteria - protist - plant
Answers: 2
Biology, 22.06.2019 11:00
In the united states there are strict fishing seasons and limits, but not all countries enforce similar laws. in bangladesh there are few if any fishing restrictions. what might be the reason for less restrictions in smaller countries like bangladesh? a) the united states is the only country worried about overfishing. b) the united states wants to limit the supply of fish to increase the price. c) bangladesh and smaller countries have an unlimited supply of fish in their coastal waters. d) small countries, such as bangladesh, are practicing subsistence fishing, taking only the fish needed to survive.
Answers: 1
What effect does eutrophication have on aquatic ecosystems? a.)it prevents sunlight from reaching a...
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