Which equation has water as a product in the chemical reaction?
a. na + cl nacl
b. h2o h2 + o2
c. naoh + h2 na + h2o
d. co2 + o2 + energy c6h12o6 + o2

Draw the structure of dna nucleotide with adenine as nitrogenous base

People with one sickle cell allele are not likely to get malaria. what is this an example of?

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.