Explain how DNA is related to selection. Use the words: genes, alleles, genotype and phenotype in your response.

What is part of the appendicular skeleton?

By using fossils and matching layers rock layers can be correlated to each other. True or False

What is true about organisms that live in the intertidal zone? They only appear during high tide because the wave pushes them inland They move deeper into the water during low tide to avoid the shoreline They must be able to withstand the changes in

Lamarck proposed two ideas to explain A. how organisms change through time. B. the principles of geology. C. the age of the Earth. D. the slow movement of the Earth's tectonic plates.

Which of the following will allow nitrogen fixation to occur? A: photosynthesis B: decay C: bacteria D: conversion of hydrogen

Primary succession is most likely caused by

Myofibrils are composed of protein filaments called actin and myosin. True or False

Below is a list of molecules with different chemical characteristics. knowing that all molecules will eventually diffuse across a phospholipid bilayer, select the option below that most accurately predicts the relative rates of diffusion of these

Lipid is another name for a

Who was the governor at the time of hurricane katrina?