Answer:
The cell membrane controls what moves in and out of the cell. Cell membranes only allow some solutes solids to move across it. Movement across the membrane depends on the size and type of the solute-Solid.
Explanation:
<span>B. wherever mechanical digestion occurs, chemical digestion also occurs</span>
Answer:
Reflexes are not a function of the spinal cord.
Explanation:
The spinal cord is part of the central nervous system and is made up of neurons that go along it (from the end of the brain stem almost to the bottom of the spine).
The spinal cord receives incoming messages from the peripheral nervous system (including the sensory neurons) and pass on messages from the brain to efferent neurons (motor neurons at muscles).
The spinal cord contributes to learning as it passes on the info received from sensory neurons (that there is an obstacle in the path) to the brain and passes on the response from the brain to the muscles (to lift the foot up higher).
The spinal cord is essential for integration as it passes on sensory information to the brain to determine motor output.
Reflexes are when sensory information is quickly sent straight to motor neurons to move. It does not need to go to the brain (hence does not need to go to the spinal cord) for the reaction as it would be too slow. This is seen when someone who is paraplegic (paralysed at lower torso) can still move their leg in response to the doctor tapping their knee even when they cannot forcibly move their legs.
Therefore reflexes are not a function of the spinal cord.
Answer:
c) Both electron transport and ATP synthesis would stop.
Explanation:
We need oxygen to survive. Absence of oxygen can make can lead to one's death. This is because we need oxygen so that our cells can use it during oxidative phosphorylation, the last stage of cellular respiration. Oxygen is found at the end of the electron transport chain, where it accepts electrons and picks up protons to form water. Absence of oxygen at this stage will make the electron transport chain to stop running, and ATP will not be produced.
Answer:
The next generation/their offspring
Explanation:
Because of natural selection the animals survived and that trait will be passed down for the next generation to be able to survive.