What happened during the cambrian explosion ?
a. groups of dinosaurs began to evolve in...
Answers: 2
Biology, 21.06.2019 16:00
Elements and compounds are pure substances that cannot be broken down physically into a simpler substance. a physical change doesn’t break the bonds between atoms of a substance or form new ones. compounds can be broken down by a chemical change. a chemical change breaks chemical bonds and/or forms new ones between atoms of a substance. what simple substance would a compound break into? the basic elements that make it up! for example, if you passed a very strong electric current through water you’d break the chemical bonds in water and be left with oxygen and hydrogen. which of the following is an example of a chemical change? a separating water into different glasses b breaking frozen ice cubes with a hammer c running an electric current through water d boiling water to evaporate it on a stove
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Biology, 21.06.2019 20:00
How many copies of each chromosomes should be present in each of the 4 final haploid versions of gamete?
Answers: 1
Biology, 21.06.2019 21:00
Amylase is an enzyme found in the human digestive system. why do you think it was important to keep the enzyme temperature above 37 degrees celsius (98.6 degrees f)? describe what might happen if the temperature decreased by 10 degrees celsius.
Answers: 1
Biology, 22.06.2019 02:30
Acertain species of fish can have either long or short fins. the allele for long fins is dominant over the allele for short fins. a heterozygous, long-finned fish is crossed with a homozygous, short-finned fish. of the offspring, will have long fins and be , and will have short fins and be .
Answers: 2
Mathematics, 11.01.2020 06:31
Mathematics, 11.01.2020 06:31
Mathematics, 11.01.2020 06:31
English, 11.01.2020 06:31
English, 11.01.2020 06:31
English, 11.01.2020 06:31
Mathematics, 11.01.2020 06:31