Biology, 26.07.2019 15:30 holycow4916
What accurately describes physical barriers? i. they are difficult for bacteria and viruses to penetrate. ii. they include the skin and the mucous membranes. iii. they may work in conjunction with secretions like tears and mucus?
Answers: 1
Biology, 21.06.2019 21:00
What is the answer for the complicated molecules that make up living things usually contain carbon. why is carbon so important in these molecules?
Answers: 3
Biology, 22.06.2019 07:00
An ecologist studied the same species of deer during the summer and the winter. she noticed that during the summer, when there was plenty of food, the deer were energetic and playful. however, during winter when food was scarce, the deer moved more slowly and did not run unless they needed to escape a predator. which scientific fact is best supported by her observations?
Answers: 3
Biology, 22.06.2019 13:00
Which type of landforms forms at the plate boundary as a result of divergent stress
Answers: 1
Biology, 22.06.2019 15:30
The image shows a group of fish. the type of social behavior shown in the image is called
Answers: 2
What accurately describes physical barriers? i. they are difficult for bacteria and viruses to pene...
Mathematics, 03.03.2020 23:25
Mathematics, 03.03.2020 23:25
Mathematics, 03.03.2020 23:25
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Physics, 03.03.2020 23:25
Mathematics, 03.03.2020 23:25