Answer:
Observing and counting bird populations
Explanation:
18: D, homologous
20: B, DNA
I can’t see 17 or 19!
Water and carbon dioxide are used to build atp and release oxygen
fairly certain that is correct. if i am wrong, you may hate me forever. hope that helps \m/
Answer:
Seafloor spreading at the mid-ocean ridge provides the mechanism for tectonic plate movement. The Earth's mantle moves through convection, showing that tectonic plates are able to glide. The location of the plates was determined by locating their boundaries, using data on the Earth's magnetic field.
Deer live in mixed forests habitats, on wooded farmlands and even in suburban areas of established cities. In winter they take to coniferous forests for shelter. Deer are a prey species, providing food for coyotes, bobcats, cougars, wolves and occasionally humans. In turn, the species helps keep vegetation in check.