Which of the following best describes how the first organic molecules on the early earth may have been formed?

tidal flow and ocean currents mix molecules together so that they could react to build larger molecules.

lightning provided the energy needed for gases to react with each other and form amino acids.

heat energy became trapped in the atmosphere by greenhouse gases and was used as an energy source in the building of macromolecules.

enzymes catalyzed reactions between smaller organic molecules to form larger ones.

Complete the sentences by matching the names of trees to the appropriate blanks. to do this, drag the names on the left into the appropriate blanks in the sentences on the right. match the words in the left column to the appropriate blanks in the sentences on the right. terms may be used more than once. make certain you have filled every blank with a term before clicking submit. 1. deciduous trees lose their leaves seasonally and include trees such as maple and elm. 2. conifer leaves are generally thin and needle-like, while seeds are contained in cones. conifers include cedar and pine. 3. evergreens are plants that maintain their leaves in all seasons and include trees such as cedar, elm, and pine. 4. hardwoods reproduce using flowers and have broad leaves; hardwoods include trees such as maple, , and cedar. elm returned you filled in 2 of 10 blanks incorrectly. mango trees are tropical broad leaf plants that maintain their leaves all year long. no credit lost. try again.

What would happen if the tubing with the yellow band was placed in a beaker of distilled water?

Why does bubbling occur when vinegar mixed with baking soda