The arctic environment is deathly cold, hence the thick blubber on animals so they can handle freezing temperatures
B I think because it would have to be 25% so then Aa would be appropriate as of it's recessive.
A is the correct answer because paleomagnetism is the record of Earth's strength and direction in it's magnetic field. It helps us in the knowledge of evolution.
good luck!!
Brainliest if i was helpful
If denaturation occurs (extreme temperature change or pH changes), the enzyme will not be reusable! The structure of the enzymes are not changed. As a result of this, enzymes will be used again and again to bind onto another substrate molecule and catalyze the reaction once again.