Dolphins learn to perform tricks to entertain humans

Looking at this image, what relationship can be drawn from it? the lower the degree of latitude, the lower the degree of temperature there is no relationship between latitude and temperature the higher the degree of latitude, the higher the degree of temperature the lower the degree of latitude, the higher the degree of temperature

Aperson with age is more likely to catch diseases that healthy people usually don’t catch.what are these infections called?

What is a group of organisms that are closely related and share similar characteristics