The layer is the Mucosa layer.
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Answer:
Biotic Factors are living things
and Abiotic Factors are non- living
Explanation:
Explanation:
a glaciers way combined with its gradual movement can drastically are we shaped the landscape over hundreds or even thousands of years the icy roads the land surface and carries a broken rocks and soil temperatures far from their original places
Natural selection. The trait that is unfavorable to the baby giraffe's survival will cause the death of giraffes with that specific gene that is responsible for a short neck vs a long neck. Natural selection causes traits that help the survival of the species will be carried throughout generations while unfavorable traits will be lost.
Calcium is a chemical element with symbol Ca and atomic number 20. Calcium is a soft gray Group 2 alkaline earth metal, fifth-most-abundant element by mass in the Earth's crust. The ion Ca2+ is also the fifth-most-abundant dissolved ion in seawater by both molarity and mass, after sodium, chloride, magnesium, and sulfate.[5] Free calcium metal is too reactive to occur in nature. Calcium is produced in supernova nucleosynthesis.
