1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Law Incorporation [45]
3 years ago
8

After a smaller star runs out of hydrogen it begins to become a :

Biology
1 answer:
fomenos3 years ago
5 0

Stars Like the Sun. When the core runs out of hydrogen fuel, it will contract under the weight of gravity. ... The upper layers will expand and eject material that will collect around the dying star to form a planetary nebula. Finally, the core will cool into a white dwarf and then eventually into a black dwarf.

You might be interested in
Hellpppp I’m in biology taking a test!!!!
Makovka662 [10]

Answer:

Are primarly nocturnal

Explanation:

8 0
3 years ago
Which of the following biogeochemical cycles includes the processes of buffering ocean ph and photosynthesis, as shown in the di
MArishka [77]

The biogeochemical cycle that  includes the process of buffering ocean pH and photosynthesis is the carbon cycle.

The biogeochemical cycles show the movement of matter in nature. These cycle show us that indeed matter is neither created nor destroyed but is always changed from one form to another.

The carbon cycle shows the movement of carbon in nature. An important component of the carbon cycle are the sinks of carbon. There are two important sinks of carbon dioxide in the carbon cycle which are oceans and green plants.

Green plants require carbon dioxide for photosynthesis while carbon dioxide is absorbed in the oceans as bicarbonate and carbonate ions where it helps to buffer ocean pH.

Learn more: brainly.com/question/1627609

3 0
3 years ago
When doing medical research with human subjects,which four limitaions are unavoidable
Illusion [34]

Answer:

There are ethical or privacy concerns to consider.

Explanation:

Human subject research is a systematic, scientific investigation that can be either interventional, a trial research or observational (test).

It is necessary to follow the Nuremberg code (1948) and have a voluntary informed consent, the research should be based on previous good results, on prior research, physical or psychological injury and harm should be avoided, benefits should outweigh risks, proper experience of a researcher is needed, right to withdraw consent, and research must stop if harm is arising.

In 1964, a guideline for medical doctors in biomedical research has been established by WMA (The World Medical Association). Helsinki declaration stated the ethical principles involving human subjects that was adopted.

In, 1982  International Ethical Guidelines for Biomedical Research Involving Human Subjects by the World Health Organization (WHO) and Council for International Organizations of Medical Sciences (CIOMS) has been established.  

According to Guidelines (2002) ethical justification and scientific validity of research, ethical review, informed consent, vulnerability ¬ of individuals, groups, communities and populations, women as research subjects, equity regarding burdens and benefits, choice of control in clinical trials, confidentiality, compensation for injury, strengthening of national or local capacity for ethical review, and obligations of sponsors to provide health-care services are outlined.

There are 4 most important principles of ethics such as autonomy, beneficence, non-malfeasance and justice.

Ethical Review Board (ERB) is a committee that has been formally designated to approve, monitor, and review biomedical and behavioural research involving humans. It aims to protect the rights and welfare of the research subjects.  The ERB must have at least five members. The members must have enough experience, expertise, and diversity. If the ERB works with studies that include vulnerable populations, the ERB should have members who are familiar with these groups. The ERB must include at least one person who is not affiliated with the institution or in the immediate family of a person affiliated with the institution.  ERB members may not vote on their projects. The ERB may include consultants in their discussions to meet requirements for expertise or diversity, but only actual ERB members may vote.

4 0
3 years ago
5. Why do populations have variation in certain traits?​
Molodets [167]

Answer:

Variations are caused by mutation. random mating between organisms.

Explanation:

4 0
3 years ago
Why do you think watering is not necessary in this bottled ecosystem
yulyashka [42]

Answer:

You can buy tiny sealed marine ecosystems enclosed in glass. ... like the one in your bottle, you will need to establish an ecological balance in order for all of ... if you have too many animals consuming oxygen and not enough plants ... Water is consumed by both plants and animals, but is also excreted, purified, and reused.

Explanation:

4 0
3 years ago
Other questions:
  • Most of Australia's population lives in which part of the continent? south west central coastal NextReset
    15·1 answer
  • Bile produced by the liver is stored in the gallbladder and released into the stomach as required for digestion. Which hormone s
    13·1 answer
  • Explain the difference between a theory and a law ​
    9·2 answers
  • The same friend asks how long humans can live. The nurse would reply that currently the maximum life expectancy of humans appear
    8·1 answer
  • Help me please,Thanks
    15·2 answers
  • A study published earlier this year used genomic data to construct a phylogenetic tree of lions. All of the lions on the tips of
    12·1 answer
  • Based on the information provided in the map, propose a way cholera may be transmitted.
    12·1 answer
  • Name 2 parts of a lipid molecule
    6·1 answer
  • Which subatomic particle orbits the nucleus?
    8·1 answer
  • I've been looking around for the answer in this interactive website that was included within to answer these questions but, I co
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!