Weather happens here thermosphere
contains ozone layer
troposphere
has very cold air
mesosphere
outermost layer of the atmosphere
stratosphere

The kind of fertilization found in the majority of aquatic animals is (internal or external) fertilization.

The first generation of offspring from the cross of two parents is called the a.f1 generation b.f2 generation c.short generation d.p generation

During an experiment, readings for blood pressure in a persons body were found to be constant . however , when he measured by a different blood pressure cuff , the readings differed by 15 points for each reading. this difference indicates that the results are