What type of information do scientist use to determine the approximate age of the earth?

water

layers of rock

fossils

atmospheric pressure

The red line through the Earth designated with the Label "N" is the? A. Equinox B. Equator C. Axis D. Magnetic Field

What water cycle obtains water?

Which animal adaptation is well saited for the canopy of a tropicl rainforest?

The pressure in the large systemic veins leading into the heart is called what? The pressure in the large systemic veins leading into the heart is called what?

What evidence supports the theory of endosymbiosis? Mitochondria and chloroplasts are similar to prokaryotes they do not have theh own membranes Eukaryotic cells contain mitochondria and some contain chiorophyll. contain ribosomes.

Will frogs exposed to the hormone estrogen lay more eggs?

Homologous pairs of chromosome line up along the center of the cell

Which area of the world currently houses most people? (approx 4billion) North/South America Africa Asia + Australia/New Zealand Europe

8. Which is a characteristic of exponential growth?

A population contains short plants and tall plants. The short plants are not able to compete with tall plants for sunlight. The tall plants, however, are more susceptible to wind damage.