Biology, 08.10.2019 19:00 putaprincess16
Liz wants to know if sand heats up faster than water. how can she find out? a. put her right hand in a cup of sand and her left hand in a cup of water. record which one feels the hottest. b. pour a cup of water into a cup of sand. measure the sand's temperature to see if it changed. c. place a cup of sand and a cup of water in the sunlight. measure their temperatures as they change. d. place a cup of sand and a cup of water in the freezer. see which one freezes first.
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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 10:30
Error analysis: what might be the reason that some of your percentages didn't exactly match your predicted results? gametes aren't responsible for inheritance. mice don't have large litters, so the sample size was not large enough. the wrong type of mice were used.
Answers: 3
Biology, 22.06.2019 11:30
Graded assignment lab report answer the questions below. which combinations of substances resulted in a chemical change? for each metal that participated in a chemical change, write the type of metal it is, based on your examination of the periodic table. were there any metallic compounds that did not react with either the acid or the base? write the type of metal, based on your examination of the periodic table. make a general statement about the reactivity of the metals in this experiment.
Answers: 1
Liz wants to know if sand heats up faster than water. how can she find out? a. put her right hand i...
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