How does carbon enter the atmosphere? options: Burning fossil fuels Cellular respiration Both A and B Neither A nor B

What is the compliment dna strand to the following sequence: ttgactaggcta

Which of the following observation darwin shape his concept of descent with modification? a) species diversity declines farther from the equator. b) fewer species live on islands than on the nearest continents. c) birds live on islands located farther from the mainland than the bird's maximum nonstop flight distance. d) south american temperate plants are more similar to the tropical plants of south america than to the temperate plants of europe. e) earthquakes reshape life by causing mass extinctions.

Compare and contrast your sells take in oxygen, water, and food. what is one waste product that leaves your cells?