Trilobite fossils have been found in rock that is 521 million years old. They have ako been found in rocks that are more than 252 million years old. Trilobite fossils have not been found in younger or older rocks. What does this tell you? Marte the one best answer.) A Trilobites became extinct 252 million years ago.

B Trilobites became extinct 521 million years ago.

C Trilobite lived on Earth for 252 million yars,

D Trilobites lived on Earth more than 521 million years

pls what literal is it ​

Turtle hatchling survivorship rate is low in many turtle species due to predation. amanda researched the predatory rate on a species of turtle eggs in the red river. the eggs were harvested from trapped turtles and the egg's cloaca film (reproductive discharge) was either washed off or left on once gathered. research suggests that predators use the female's cloaca scent to locate the eggs. the eggs were only handled when wearing gloves and then reburied along islands where the turtles were trapped. the nests were monitored by cameras and manually on foot and data on nest predation were recorded. a. based on the experimental design, what is the dependent variable? b. based on the experimental design, what is the independent variable? c. based on the experimental design, what is the control?

Which group of molecules are targeted by the kinases in order to control this movement

What does the number 18.9984 represent in the image?