Biology, 08.01.2021 19:40 miguelturner
Josh did an experiment, recording the changes in temperature in sand and water when exposed to a light
source, and then when the light source was removed. Josh decides that
A)
sand and water conduct heat the same.
B)
sand conducts heat better than water.
C)
water conducts heat better than sand.
D)
neither sand nor water conducts any heat.
Answers: 3
Biology, 21.06.2019 16:00, caitlin89
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
Answers: 2
Biology, 21.06.2019 21:30, irishdreamer0689
List the advantages and disadavantages of the switch from persistent chlorinated hydrocarbon pesticides (such as ddt) to nonpersistent organophosphate pesicides. have the benefits of the switch outweighed the disadvantages? explain.
Answers: 3
Biology, 22.06.2019 09:00, risaroo070618
What is the significance of the protein-lined pits? a. protein attracts other proteins needed for atp synthesis within the cell. b. protein-lined pits are able to transport one molecule at a time down the concentration gradient within the cell. c. the polarity of proteins allows other polar molecules to attach and be transported in the cell by transport channels. d. receptors within the pits allow ligands to fuse and be transported into the cell by endocytosis.
Answers: 2
Biology, 22.06.2019 14:30, joejoefofana
Which of the following shows the results that you would get if you tested beef using the four tests in the gizmo
Answers: 1
Josh did an experiment, recording the changes in temperature in sand and water when exposed to a lig...
Physics, 24.11.2020 17:20
Mathematics, 24.11.2020 17:20
Biology, 24.11.2020 17:20
Biology, 24.11.2020 17:20