<h2>Answer:</h2>
Competition
<h2>Explanation:</h2>
Organisms compete for the resources they need to survive in an ecosystem such as air, water, food, and space. Competition both within and between species is an important topic in ecology. Every individual in an ecosystem requires certain things to survive and to reproduce. They compete with members of their own species (intra specific) and members of other species that need the same things (inter specific). The most important of them is food so the relationship between hyenas and lions over food is called a competition in the given ecosystem.
Answer:
The correct answer is option C.
Explanation:
Human subject research is an investigation or research that include human as the subject. In other words, An Investigator conducts clinical research on humans getting data through interaction and intervention of individuals.
investigator A has investigated biological specimens. These specimens are coded and linked to the identifiers. Investigator B's research using biospecimens human subject is not according to the human subject research in the federal regulations as investigator B did not get the individual identifiers.
Thus, the correct answer is option C.
Answer:
Explanation:
1. What is the cause of this virus?
2. What is the treatment for this virus?
3. Can this virus affect others?
4. Can this virus become a serious issue?
Answer:
c) melatonin
Explanation:
Melatonin its a hormone formed by the pineal gland, which regulates an individual wake cycles and sleep. Jetlag alters the hormone function leading to an alteration with the body clock of the persom.
Jetlag is a sleep disorder common to those who travel swiftly over several time zones. It is not a permanent sleep disorder. Its due to the body's internal clock lacking sync with cues generated in a different time zone, Cues may be due to light exposure and how often the person eats.
A basic factor on ones internal clock is sunlight. It controls the regulation of melatonin which aid in synchronizing cells in the body.
Specific cells of the tissue at retina moves the light signals the thypothalamus.
At night, the hypothalamus signal to the pineal gland to produce melatonin. At daylight hours, the reverse is the case.
It would be 2. it emits all wavelengths in the electromagnetic spectrum
