For which method of determining population size is the population not aware of the sampler’s presence? a. mark/recapture b. direct observation c. sampling d. indirect observation Please select the best answer from the choices provided A B C D

In the image, layer a is the topmost layer. layer c contains fossils from the precambrian era. layer b contains dinosaur fossils, and layer a contains fossils of mammals. which two statements are supported by this evidence? 1. mammals lived before the precambrian era. 2. dinosaurs and mammals existed in the precambrian era. 3. dinosaurs evolved after precambrian organisms. 4. precambrian organisms evolved after dinosaurs. 5. precambrian organisms were the first life-forms to become fossilized, according to this sample.

Essay questions may also be referred to as a. talk questions c. hard questions b. explain questions d. think questions

What does a triple-beam balance require the user to do? add the numbers from the three sliders to determine the mass of an object multiply the numbers from the three sliders to determine the mass of an object add the numbers from the three sliders to determine the volume of an object multiply the numbers from the three sliders to determine the volume of an object