The answer is: <span>A- Genes for body and wing size were on the same chromosome and inherited together</span>
IPSPs are the result of:
a. decreasing membrane conductance to sodium
b. decreasing membrane conductance to potassium
c. inhibitory neurotransmitter entering the postsynaptic cell
d. neurotransmitter binding to ligand-gated ion channels that are chloride selective
Answer:
d. neurotransmitter binding to ligand-gated ion channels that are chloride selective
Explanation:
IPSP refers to inhibitory postsynaptic potential (IPSP). It occurs when the neurotransmitters released from the axon terminals of the presynaptic neurons bind to and open the chloride ion channels. This allows the entry of chloride ions into the neuron making the inside of the membrane even more negative. This does not allow firing of the action potential. The postsynaptic neuron is said to be hyperpolarized. Therefore, IPSP results from hyperpolarization of postsynaptic neurons by the opening of ion channels such as chloride channels.
Answer:
An arctic fox changes its fur color to blend in with its surroundings
Explanation:
This is a defense mechanism because when it blends into its surroundings it can hide from its predators and help defend itself
Answer:
Our alimentary canal undergo a process or a movement called peristalsis, in which the walls continuously move to pass the food downwards. So if you eat hanging upside down, the food would surely move.
Explanation:
- Peristalsis is a series of wavelike muscle contractions that moves food to different processing stations in the digestive tract and the process begins in the oesophagus when a bolus of food is swallowed.
- The muscles of the oesophagus are strong enough to propel food and liquids into the stomach even when hanging upside down although there is a risk of choking
- It is advised that maintaining a correct body positioning during eating is very important for digestion to happen properly and avoid blockage of the airways by food and fluid.
- Leaning your body upright slightly and rounding your shoulders a bit so that your chin is tucked-up is a way of exercising safe chewing and swallowing.
The best example of overexploitation of a resource is overfishing.
