The answer is a. basalt. Gabbro rocks are more related to basalt in terms of chemical characteristics. They are both igneous rocks but basalt is an extrusive rock that cools quickly while gabbro is intrusive and cools slowly. So, basalt rocks are fine-grained while gabbro are coars-grained.
Answer:
Option B
Explanation:
The genetic code utilised by almost every organism are the same, as in the same sequences of codon codes for the same amino acid in almost every organism, thus the genetic code is said to be universal.
Answer: Vaccines give you immunity to a disease without you getting sick first. They are made using killed or weakened versions of the disease-causing germ or parts of the germ (called antigens). For some vaccines, genetic engineering is used to make the antigens used in the vaccine.
Explanation: Vaccines greatly reduce the risk of infection by working with the body's natural defenses to safely develop immunity to disease.
Answer:
Virulence, the capacity to cause disease, varies markedly among viruses. Some viruses cause lethal disease while others do not. For example, nearly all humans infected with rabies virus develop a disease of the central nervous system which ultimately leads to death. In contrast, most humans are infected with circoviruses with no apparent consequence.
Explanation: One explanation for viral virulence is that it facilitates transmission. However, a comparison of infections caused by two enteric viruses, poliovirus and norovirus, does not support this general view. Both viruses infect the gastrointestinal tract and are spread efficiently among humans by fecal contamination.
Two questions about homeostasis may be how endocrine signaling may affect the immune responses and how the nervous system work together with the endocrine signaling.
<h3>What are endocrine signals?</h3>
Endocrine signals are different molecules called hormones that are released by specialized cell types and travel to the bloodstream to carry out functions in the body.
Endocrine signaling affects immune responses (e.g., inflammation) and both neural and endocrine signaling may affect different types of homeostatic responses.
In conclusion, endocrine signaling may affect the immune responses and the nervous system work together with the endocrine signaling.
Learn more about endocrine signaling here:
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