Many scientific discoveries begin with direct observations. which could be a direct observation?
a. ants communicate by airborne chemicals
b. birds navigate by using magnetic fields
c. butterflies eat nectar from flowers
d. fish feel vibrations through special sensors
Answers: 1
Biology, 21.06.2019 19:00
Which describes how weathering and erosion are different? weathering is caused by water. erosion is caused by wind and ice. erosion transports sediments. weathering is a natural process.
Answers: 1
Biology, 22.06.2019 02:30
Plz ! having a smooth seeds is the dominant trait. having wrinkled seeds is a recessive trait. the offspring of two plants with smooth seeds, a. must have smooth seeds. b. may have smooth or wrinkled seeds. c. must have wrinkled seeds. d. have a 25% change of having smooth seeds.
Answers: 1
Biology, 22.06.2019 14:20
9. what area of study applies scientific findings to create ways for solving problems or improving life? a biogeology b mathematics c manufacturing d engineering
Answers: 2
Many scientific discoveries begin with direct observations. which could be a direct observation?
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