During Pangea, Madagascar and India were one landmass. The species of frogs were homogenous across the
landmass. However, after continental
drift that began approximately 88 years ago,
allopatric speciation occurred to form different species on the two continents.
The dusky salamanders on the two continents that could once reproduce viable offspring 88 years
ago, cannot reproduce viably today because
they have diverged into two different species now.
Answer:
A closed circulatory system is one in which blood flows though a system of blood vessels throughout the body.
Became a cancer cells infection
Lashley is looking at different ways in which the brain works, especially different parts of the brain. If part of the brain was damaged and you compare how well the rat completed the task before and after the damage, then you can determine what function that part of the brain does. Also, if you study how well the rat completes the task as time progress, you can see if the rat is able to use other parts of the brain to "learn" and repair the damaged part of the brain.
Answer:
The characteristic of water-soluble hormones are:
1. They dissolve in water and do not dissolve in fat or oil
2. They are produced from amino acids that are soluble in water
3. They will be unable to pass through cell membranes that have fatty molecules
4. They are receptor-specific. That is they bind to a receptor that fits them on the target cell.
