What are the rungs of the dna ladder made of?

Throughout the world countries are dumping their garbage in the oceans. This dumping has affected the fish and other aquatic organisms of the oceans. Many fishing industries have collapsed due to this extensive dumping.

Which of the following is the best example of a way human lifestyles affect environmental systems?

What is the primary purpose of a fruit?

1. What is a pathogen?

the trees in a rain forest start to die. this would affect the animals and other planys of the rainforest because it would increase? A. Food. B. Sunlight. C. Rainfall. D. shelter

Noah wants to show the largest source of carbon on Earth for his school project. According to his research, in which form is most of the carbon on Earth stored?

True or false: most drugs are eliminated by the kidneys in urine although some are excreted in saliva, sweat, or exhalation. a. True b. False

Do all adaptations result in a change in population? Explain

What kind of bond is formed when two atoms share a electron

The formula for carbohydrates is C n H 2n O n. Which statement accurately describes this general formula There are twice as many hydrogen atoms as carbon atoms There are more carbon atoms than oxygen atoms The ratio of the atoms is 1:1:2 in the