Biology, 09.11.2019 11:31 ineedtograduate2020
Apple farmers are currently having a very difficult time with pesticide-resistant insects. these insects are no longer being killed by the current chemical treatments, thus causing a lot of damage to the apple crops. in reaction to this, researchers are developing newer and stronger chemicals to control the bugs. why are the apple farmers seeing these new, stronger bugs? a) the bugs were not native to the area and thus cannot be killed by normal chemicals. b) changes in the weather have led to stronger insects that can survive these harsh changes. c) the strongest bugs were able to survive pesticides, reproduce and create more resistant pests. d) the apple trees are producing too many apples, which is allowing the insects to reproduce rapidly.
Answers: 2
Biology, 21.06.2019 21:50
Imagine a rocket launching from earth and travelling to the moon. in which order would the rocket pass through the layers of the atmosphere? thermosphere, mesosphere, stratosphere, troposphere troposphere, mesosphere, stratosphere, troposphere thermosphere, stratosphere, mesosphere, troposphere troposphere, stratosphere, mesosphere, thermosphere
Answers: 2
Biology, 22.06.2019 18:30
Crinoids, also known as sea lilies, appear to be sea plants but are not plants at all. crinoids are an echinoderm species which uses anchoring structures called holdfasts to attach themselves to the sea floor. crinoids were most abundant in pennsylvania during the mississippian period, which ranged from 375 to 320 million years ago. fossils of the crinoids shows that during most of this time pennsylvania was that provided favorable conditions for crinoid growth. a) glacial terrain b) a dry and sandy plain c) mostly mountain ranges d) covered by warm, shallow seas
Answers: 2
Apple farmers are currently having a very difficult time with pesticide-resistant insects. these ins...
Computers and Technology, 11.12.2019 01:31
Computers and Technology, 11.12.2019 01:31