Which sources do scientists use to study ancient climates? Check all that apply.

Earth's orbit

tree rings

volcanoes

pollen grains

fossils

What is stored in a gene bank

Which of the following represent the correct order of flow in the water cycle?

Which of these kingdoms is the most diverse? a. fungi b. protists c. animals d. plants

When a snake gets too cold, it will move to a warm rock. It sits on the warm rock to feel heat from the Sun and increase its body temperature. What trait of living things does the snake display when it changes its location to warm itself? A.

If a mutation causes a permanent change in the DNA sequence, how is it that most mutations are "silent" mutations?

Which of Mendel's laws BEST explains why genetic variations occur in offspring resulting from sexual reproduction? A law of segregation B law of dominance C law of independent assortment D law of crossing-over

When can a primary succession occur?

Friction between a skateboard wheel and the surface produces?

What are two functions of the cell membrane

Why can eukaryotes carry out more specialized functions than prokaryotes can? A) eukaryotes have more organelles B) Prokaryotes have more organelles C) eukaryotes are bigger D) prokaryotes are bigger