Answer: B) there is a decrease in kinetic energy and the molecules get closer together.
Explanation: Kinetic energy is directly proportional to temperature, thus as temperature decreases, kinetic energy also decreases.
Gas is the state of matter in which particles are very loosely bound and hence can easily move past one another very easily and have highest kinetic energy.
Liquid is the state of matter in which particles are loosely bound and hence can move past one another easily and have high kinetic energy.
Solid is the state of matter in which particles are tightly bound and hence can not move easily and have low kinetic energy.
Thus on moving from gaseous to solid state, the kinetic energy decreases and the molecules get closer together.
Answer:
1. Signaling molecule
2. Signaling receptors
Explanation:
Hormones, growth factors, neurotransmitters, etc. serve the function of signaling molecules for cells. These molecules are released by one cell and bind to the receptors present on/in the target cells to elicit the desired response. Thereby, the signaling molecules serve in cell-cell communication.
For example, insulin hormone synthesized and released from beta cells of pancreas binds to its cell surface receptors present on the surfaces of liver cells and muscle cells to stimulate the uptake of the glucose from the blood.
Likewise, neurotransmitters released from the presynaptic neuron bind to receptors present on the membrane of postsynaptic neuron and serve to carry the nerve impulse to the postsynaptic neuron.
The answer to this question is the "coal-burning power or the power plants". Hence, the Airborne mercury has received special attention because it is a widespread and persistent neurotoxin. TA neurotoxin is a substance that damages the brain and the nervous systems. Minute doses can cause nerve damage and other impairments, especially in the young children and the developing fetuses. The majority of the airborne mercury is released by POWER PLANTS or coal-burning plants. Many people are affected and get sick that is why when there is a proposed new power plant project, most people object and opposed.
A rabbit is a primary consumer
Answer:
An experiment that directly test the hypothesis.
Explanation:
Although there is quite a bit missing from Mary's scientific investigation, the thing that sticks out the most is the fact that Mary is missing an experiment. Mary's hypothesis states that people would fall asleep faster if their room color were to be painted blue. To prove that her hypothesis is true, Mary would need to conduct an experiment to see whether or not she was correct.
