Answer: ion-channel-coupled receptors.
Explanation:
These channels are mainly involved with the fast transmission. These receptors are organized into the membrane and regulating or ion-flow channels according to their internal diameter and the predominant electrical charge of their constituent amino acids.
Ion channels can be activated either by membrane potential variation (VOC´S - tension-operated channels), as well as interaction with an agonist (ionotropic receptors), as well as mechanical stimulation or via intracellular agents such as calcium ions, cyclic nucleotides, inositol triphosphate, and G protein. This group includes the nicotinic cholinergic receptor, the GABA receptor, and the glutamate receptor.
1. Balances fluids.
2. Structure. Support for tissues.
Y chromosome because it has been passed down through generations, one man 60,000 years ago
Answer:
The organism is anaerobic bacteria.
Explanation:
Bacteria is a prokaryotic microorganism that have different shapes and can inhabit in different habitat regions.
Bacteria is an important factor in the ecosystem as they have some unique features like they can capable of recycling vitamin B₁₂ and provide it through the food chain.
It play a vital role in nitrogen cycle as they helps to fix nitrogen in the ecosystem which is obtianed by plants and animals for their growth and development.
Methanogenesis is a process of formation of methane in the environment by some microbes like anaerobic bacteria through the process of anaerobic respiration.
Answer:
b. A change occurs in the environment.
d. Poorly adapted individuals have decreased survivorship.
a. Well-adapted individuals leave more offspring than do poorly adapted
c. Genetic frequencies within the population change.
Explanation:
Genetic variation is the variation in DNA sequences between individuals in a population. Looking at the analogy of the question; there is need to first be a change in the environment. This is being followed by decrease in poorly adapted individuals due to the fact that they wont be able to cope with ambient change in the environment. Therefore, as a result only well- adapted individuals would thrive to leave more offsprings than the poor adapted ones.
As such, Genetic frequencies within the population change with time.