Biology, 30.01.2020 11:04 MissSusan183
The peppered moth provides a well-known example of natural selection. the light-colored form of the moth was predominant in england before the industrial revolution. in the mid-19th century, a dark-colored form appeared. the difference is produced by a dominant allele of one gene. by about 1900, approximately 90% of the moths around industrial areas were dark colored, whereas light-colored moths were still abundant elsewhere. apparently, birds could readily find the light moths against the soot-darkened background in industrial areas and, therefore, were eating more light moths. recently, use of cleaner fuels has greatly reduced soot in the landscape, and the dark-colored moths have been disappearing. should the two forms of moths be considered separate species?
Answers: 1
Biology, 21.06.2019 14:50
Previous pagenext pagepage 3 of 10question 3 (1 point)which of the following consist of cells that do not have a nucleus? of the above
Answers: 1
Biology, 21.06.2019 21:30
What was dr. willem johan kolff’s first step in using the scientific process to invent the hemodialysis machine? he built the machine and tried it with various patients, collecting data about its effectiveness. when a patient’s kidneys failed, he wondered if it would be possible to perform kidney functions with an external machine. he researched and collected data about numerous patients who exhibited symptoms of kidney failure. he drew conclusions from studies of various symptoms of kidney failure, and drew a design for the ideal external blood-processing machine.
Answers: 1
Biology, 22.06.2019 15:00
Cells must be in osmotic equilibrium with their surroundings environments because if they swell or shrink thier membranes will rupture
Answers: 1
The peppered moth provides a well-known example of natural selection. the light-colored form of the...
Computers and Technology, 16.07.2019 05:10
Mathematics, 16.07.2019 05:10
Mathematics, 16.07.2019 05:10
Mathematics, 16.07.2019 05:20
History, 16.07.2019 05:20
History, 16.07.2019 05:20