Biology, 21.12.2019 12:31 irishvball7
Why was the evolution of cyanobacteria such a significant event in earth’s history
Answers: 3
Biology, 22.06.2019 16:30
Organize the following objects from lowest volume to highest volume
Answers: 2
Biology, 22.06.2019 16:30
Astudent sees several ants walking up a wall following the exact same trail that an ant took earlier. she wants to apply the scientific method to determine how the ants detected the trail. which of these steps would come first in her application of the scientific method? perform an experiment by cleaning the scent away from part of the trail. draw a conclusion that the ants follow a scent trail. make a prediction about what the ants will do after she cleans away part of the trail. hypothesize that the ants are following a scent trail that the first ant left.
Answers: 1
Biology, 22.06.2019 18:30
Which of the following are not matched correctly? cd8+: directly destroy infected or cancerous cells t reg cell: reduce the adaptive response once threat passes t l: activate cellular branch (cytotoxic t cells, macrophages, nk cells) t 2: stimulate b cells to make antibodies t (cd4+): mhc i
Answers: 3
Biology, 22.06.2019 18:30
12) several teeth were found in an area of flat land covered with trees and plants. the teeth were examined by a paleontologist, and it was determined that the teeth came from a shark. they found many other shark teeth in this area. however, the people who discovered the teeth were puzzled, because there was no source of water near where the fossils were found. what is the paleontologist's best explanation for why the teeth were found in this area? a) sharks used to live on flat land. b) this area was once covered with salt water. c) this area was once covered with freshwater. d) someone buried the shark teeth deep in the ground.
Answers: 1
Why was the evolution of cyanobacteria such a significant event in earth’s history...
Mathematics, 25.01.2021 08:00
Spanish, 25.01.2021 08:00
English, 25.01.2021 08:00
Mathematics, 25.01.2021 08:00
Mathematics, 25.01.2021 08:00
Advanced Placement (AP), 25.01.2021 08:00
Mathematics, 25.01.2021 08:00
History, 25.01.2021 08:00
Mathematics, 25.01.2021 08:00