Animals get the nitrogen they need by eating plants or other animals that contain nitrogen. When organisms die, their bodies decompose bringing the nitrogen into soil on land or into ocean water. Bacteria alter the nitrogen into a form that plants are able to use.
The cell has to use active transport when it's trying to transport material against the concentration gradient. (from low to high concentration) Or, if a molecule is too big to diffuse through the cell membrane, it must be moved through using a carrier protein.
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Uhm, none of the above?
Pine trees reproduce by producing seeds, but instead of the traditional seeds inside a fruit, the seeds are on the scales of the cones.
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Answer:
troposphere - Responsible for earth's weather
exosphere - Air mergers into space
ionosphere - Used to send radio signals
stratosphere - Characterized by strong, steady winds
ozone layer - Protects earth from UV radiation
mesosphere - coldest layer
Explanation:
Answer:The mitochondrial structure affects its function because in its inner membrane, the cristae (folds) allow for more surface area which increases the amount of ATP that can be produced by the mitochondria.
Explanation: The outer membrane covers the organelle and contains it like a skin. The inner membrane folds over many times and creates layered structures called cristae. The fluid contained in the mitochondria is called the matrix. The folding of the inner membrane increases the surface area inside the organelle.
