Answer:
The form of cell to cell signalling that is been used is ENDOCRINE.
Explanation:
There are four ways by which cell signalling occur in the body, these are: endocrine, paracrine, autocrine and direct signalling.
Endocrine signalling is the biochemical process by which hormone secreting glands release hormones into the blood streams and that hormone has effects on target organs that are located far away from it. Endocrine hormones are usually stable and their effects usually last for long time.
Answer:
The liquid in the kettle will be simmering if it is just below the boiling point. The liquid will be hot, but not boiling, and there will be bubbles rising to the surface.
Explanation:
The answer is D for this question
Answer:
Pathogens
Explanation:
Some microbes are harmful and cause one or more diseases in other living beings. These organisms that cause diseases are called pathogens. It includes bacteria, fungi, worms and protozoans. However, some non-living entities that cause disease are also referred to as pathogens. For instance, infectious protein prions cause many neurodegenerative diseases. So, prions are also pathogens. Likewise, viruses cause many diseases in plants and animals. Viruses do not exhibit life processes when they are outside the host cells. However, viruses are also called pathogens.
1. formed of ice, rock, and dust
3. develop tails near the sun