Chemistry, 11.01.2020 05:31 samueldfhung
Allison is trying to identify the type of bacteria found on common surfaces like doorknobs, table tops, etc. for this experiment, she will collect samples of bacteria and allow them to grow for several days. then, she will observe the bacterial colonies that are formed and compare their appearance with pictures of bacterial colonies in her textbook. which of the following pieces of equipment will allison most likely use for the growth of the bacteria? a. microscope b. graduated cylinder c. barometer d. petri dish
Answers: 1
Chemistry, 21.06.2019 17:00, debordc17
Two friends at different locations want to communicate with each other by sending low energy signals. which of the following methods can they use to communicate? a) produce x-rays using colliding electrons and send them to radios, which capture sound b) send messages using infrared radiation, which travel in the form of waves c) send radio waves through intervening media like radio and television d) produce sound waves using microwaves from heated objects
Answers: 2
Chemistry, 22.06.2019 08:30, lpssprinklezlps
What method(s) do plants use to obtain nitrogen? select all that apply. absorb it from the atmosphere use bacteria to convert nitrogen to usable form obtain usable nitrogen compounds from the soil absorb nitrogen from water taken in at the roots
Answers: 3
Chemistry, 22.06.2019 14:30, isaiahrodriguezsm17
What type(s) of intermolecular forces are expected between ch3ch2cooh molecules? dipole forces, induced dipole forces, hydrogen bonding
Answers: 1
Chemistry, 22.06.2019 21:50, namoralessimon03
28. which is not a reason that water is used to store spent fuel rods from nuclear power plants? water increases the speed of the chain reaction in the fuel rods. water protects nuclear power plant workers from the high temperature and radiation of the fuel rods. water acts as a radiation shield to reduce the radiation levels. water cools the spent rods. salts action
Answers: 1
Allison is trying to identify the type of bacteria found on common surfaces like doorknobs, table to...
Mathematics, 23.05.2020 11:58
Mathematics, 23.05.2020 11:58