Help me PLEASE! Choose one answer! First one to answer get Brainliest! 19.) Which fossil appears to have lived most recently?

A.) Coral
B.) Gastropod
C.) Trilobite
D.) Fern

No because the eaeht is on a 23.5 degree axis tilt and so when it is winter the northern hemisphere is pointing away from the sun and the soutubern hemisphere is pointing toward the sun

The answer to this will be from your lab notes/procedure. it would be best to ask another student who participated in the lab as we do not know what was done, what enzyme or if the temperature is celsius or fahrenheit. if i were to guess though i'd say the rate stopped due to enzyme denturing at high temperature

Exposure to solar flares would be the correct answer