The smooth-skinned, leaf-tailed gecko lives on Madagascar, an island off the coast of Africa. The gecko hunts at night and sleeps on trees by day. The color and pattern of the gecko’s body resembles leaves. Which of the following statements best explains how the gecko’s unique body color and pattern evolved?
a. Individuals with bodies that looked the most like leaves were better able than other individuals to avoid predators and passed on that trait to their offspringb. Gene sequences of all the geckos mutated to produce the leaf appearance when the ancestral geckos moved from mud to treesc. Individuals with bodies that looked the most like leaves interbred only with other green or brown lizard speciesd. All the geckos needed to look like leaves in order to live in trees and therefore acquired the necessary trait

Every compound can be represented by a chemical formula. a chemical formula is the set of symbols showing the elements that make up a compound and their proportions. water’s chemical formula is h 2 2 o. that means a molecule of water contains two atoms of hydrogen and one atom of oxygen chemically bonded. a molecule is a group of two or more atoms bonded together. molecules can range in size from two to thousands of atoms. a molecule of a compound is the smallest unit of that compound. every molecule of water has all the physical and chemical properties of water. that’s because every molecule of water is made of the same elements in the same proportions: two hydrogen atoms and one oxygen! which of the following is a true statement? a every molecule of the same compound will have different properties. b every molecule of a compound has the same proportion of elements. c molecules can be physically separated into smaller units of a compound. d molecules cannot be represented by chemical formulae.

Biomass can be used to generate electricity. biomass relies heavily on agricultural crops. plants release carbon dioxide and water in combustion. plants use photosynthesis to originally generate the energy that is needed. the chemical energy of these plants all started with what energy source?

One of the purposes of transcription is to produce a sequence of bases that