Biology, 06.05.2020 00:26 shanilafaridor97hl
Use the drop-down menus to complete the statements. are pure substances that cannot be broken down into a simpler form. are units of two or more atoms. are the smallest possible particles of an element. are pure substances made of two or more atoms of different elements.
Answers: 2
Biology, 22.06.2019 11:30
Ihave no idea how to solve these. plus there's another question that is 2) a 10 kilogram meteorite is collected in space and brought back to earth. it is composed of 1.25 kg of uranium-238 and 8.75 kg of lead-206. how many u-238 half lives have passed? what is the approximate age of the meteorite?
Answers: 1
Biology, 22.06.2019 20:50
Which of these internal feedback reactions does not need your brain? oa. your leg jumping when it is hit by a reflex hammer b. your deeper breathing when you need more oxygen c. your body temperature rising when you have an infection d. your heart beating faster when you are in danger
Answers: 1
Biology, 23.06.2019 01:30
Peat deposits are found in waterlogged places where dead plant material piles up. when peat is buried, it undergoes compaction. it is subjected to heat and pressure for a long time, and a lot of water is squeezed out during this process. nearly ten vertical feet of original peat material becomes one vertical foot of coal. which of these remains unchanged in the system during the conversion of peat to coal? a) area b) density c) mass d) volume
Answers: 2
Biology, 23.06.2019 05:30
Plasmids are used in biotechnology. plasmids question 5 options: can replicate independently of the bacteria's main chromosome.used in the production of medicine to treat illnessesall answer options describe plasmids.a circular piece of bacterial dna
Answers: 1
Use the drop-down menus to complete the statements. are pure substances that cannot be broken down i...
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