Biology, 13.11.2019 19:31 walkerrwilson
As aluminum gets hot, the solid metal expands before melting. what best explains this phenomenon? a. the atoms collide with greater force, fusing their nuclei together. b. the atoms eject electrons, becoming positive ions that repel each other. c. the atoms chemically react with each other, releasing heat that melts the solid metal. d. the atoms move faster, increasing the distance between them before breaking some of their bonds.
Answers: 2
Biology, 22.06.2019 01:30
Which best explains how a heat pump can heat a room? cold air from the house is moved through pipes, where it absorbs thermal energy. warm air from outside is pushed into the house to replace the cold air. combustion warms the air when chemical energy is transferred to thermal energy. fuel is used to move a piston, which pushes warm air into the house.
Answers: 1
Biology, 22.06.2019 03:30
If assuming tasting ptc as a simple gene trait,what other genotype would you select to put in this missing genotype box that could result in this phenotype
Answers: 3
Biology, 22.06.2019 09:00
The two tubes contain bromothymol blue. after 24 hours, what will the color of the water be in tube b? a. green (it won't change) b. yellow c. blue d. colorless (clear)
Answers: 1
Biology, 22.06.2019 14:30
Which statement is not an accurate description of meiosis? a) meiosis produces offspring that are genetically diverse. b) meiosis produces offspring that are identical to the parent. c) in sexual reproduction half of the genetic material comes from the father (sperm) and half of the genetic material comes from the mother (egg). d) meiosis decreases the number of chromosomes by half so that when a sperm fertilizes an egg, the resulting zygote has the correct number of chromosomes.
Answers: 1
As aluminum gets hot, the solid metal expands before melting. what best explains this phenomenon? a...
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