Answer:
in a stable population,the birth and death rates depend directly on the variance of age at death
Liked my hardwork and make it brainliest
Explanation:
<em>Ocean </em><em>currents </em><em>can </em><em>be </em><em>caused </em><em>by </em><em>wind,</em><em>density </em><em>differences </em><em>in </em><em>water </em><em>masses </em><em>caused </em><em>by </em><em>temperature </em><em>and </em><em>salinity </em><em>variations,</em><em>gravity,</em><em>and </em><em>events </em><em>such </em><em>as </em><em>earthquakes </em><em>an</em><em>d</em><em> </em><em>storms.</em><em>.</em><em>.</em><em>Surface </em><em>currents </em><em>in </em><em>the </em><em>ocean </em><em>are </em><em>driven </em><em>by </em><em>global </em><em>wind </em><em>systems </em><em>that </em><em>are </em><em>fueled </em><em>by </em><em>energy </em><em>from </em><em>the </em><em>sun.</em>
Dead. Pickles don’t have brains
Most likely A or E.. not completely sure but A and E<span />
The correct answer is - D) covered by warm shallow seas.
The fact that the crinoids are have an abundance in the fossil records in Pennsylvania in the Mississippian Period, tells us that this area was covered with shallow and warm seas. The reason why we can get that conclusion is that the crinoids live only in that kind of environment, so it simply a logical conclusion.
The geological data is also confirming this, as it is easily noticeable in the layers that during this period of the geologic past, what is now Pennsylvania, was covered with shallow sea waters. Also, this waters were warm too, as the climate was warm and humid and that period, so it was a perfect environment for the crinoids to flourish.
