Christopher and kate noticed that after a rainstorm some of the rocks in their yard appear to shrink. they wondered how the mass of the rocks changed when dissolved in water. to determine this, kate purchased a variety of rocks from a local shop, carefully recording the types of rocks in a data chart. christopher gathered rocks from the backyard to add to the rocks kate purchased. they measured each rock's initial mass; then they inserted the rocks one by one into 100 milliliters of water and measured the mass of each rock after it had sat in the water for five minutes. both christopher and kate concluded that store-bought rocks do not dissolve in water. they also concluded that to get rocks that dissolve in water they must be gathered directly from the yard.
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Biology, 22.06.2019 13:00
We can be sure that a mole of table sugar and a mole of vitamin c are equal in their 1) mass in daltons. 2) mass in grams. 3) number of molecules. 4) number of atoms. 5) volume.
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Biology, 22.06.2019 16:30
In guinea pigs, black fur (b) is dominant over white fur (b). cross a heterozygous (hybrid) black guinea pig with a homozygous (purebred) white guinea pig. complete a punnett square, identify the genotype(s), phenotype(s), and probability (% and fraction) that the offspring will be black and white?
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Biology, 22.06.2019 17:00
In cattle a single gene with two alleles determines fur color the fur can be red white or roan roan fur has both red and white hair which of the following statements is true a the allele for roan fur color is dominant over red and white fur color b the allele for red fur color is dominant over white and roan fur color c the roan and white alleles are expressed independently of the other d the red and white alleles are expressed independently of each other
Answers: 1
Biology, 22.06.2019 19:10
Which statement does lola need to correct, and why? a) statement 1 because spiral galaxies do not havearmsb) statement 2 because the bulges contain mostlyyoung red stars.c) statement 3 because the arms are made of mostlyyoung blue and blue-white stars.d) statement 4 because spirals galaxies contain littleto no dust.(c)
Answers: 1
Christopher and kate noticed that after a rainstorm some of the rocks in their yard appear to shrink...
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