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hoa [83]
4 years ago
12

Earths .....is broken up into 12 major tectonic plates

Biology
2 answers:
sesenic [268]4 years ago
7 0
I believe that is true. hope this helps
frez [133]4 years ago
3 0
It's 7 major plates

- the African plate
- The Eurasian plate
- Antarctic plate
- the indo- Australian plate
- North American plate
- South American plate
- and the pacific plate
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The normal force acting upon the car is best represented by arrow __. The force of gravity acting upon the washers is best repre
geniusboy [140]

Answer:

1. The normal force acting upon the car is best represented by arrow <u>A</u>.    

Reason:

The direction of normal force is always upward and opposite to gravitational force that why A is correct option.

2. The force of gravity acting upon the washers is best represented by arrow <u>B</u>.

Reason:

The direction of gravitational force is always downward toward the center of gravity and opposite to normal force that why B is correct option.

3. The applied force on the car is best represented by arrow <u>C</u>.

Reason:

The direction of applied force is along the  direction in which it moves. that why C is correct option.




5 0
3 years ago
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The wide range of eye color indicates that eye color is
MrRa [10]

The wide range of eye color indicates that eye color is...polygenic

8 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
What is rigor mortis and what causes it?
Usimov [2.4K]

Answer and Explanation:

A couple of hours after the death of an individual or creature, the joints of the body solidify and become secured. This solidifying is called rigor mortis.  

Contingent upon body temperature and different conditions, rigor mortis endures roughly 72 hours.

The partial contraction of the skeletal muscles leads to the occurrence of this phenomena.

4 0
3 years ago
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The pluripotent, undifferentiated cells in the bone marrow that give rise to the formed elements are called _____ cells
LuckyWell [14K]

The pluripotent, undifferentiated cells in the bone marrow that give rise to the formed elements are called stem cells.

Pluripotent stem cells have the ability to undergo self-renewal and to give rise to all cells of the tissues of the body. However, this definition has been recently complicated by the existence of distinct cellular states that display these features.

There are two types of pluripotent stem cells :

  • Embryonic stem cells (ESCs)
  • Induced pluripotent stem cells

Embryonic stem cells are derived from the inner cell mass (ICM) of pre-implantation embryos and can be indefinitely maintained and expanded in the pluripotent state in vitro. Pluripotent stem cells can also be obtained by inducing dedifferentiation of adult somatic cells through a recently developed in vitro technology, known as cell reprogramming.

Similarly to  Embryonic stem cells , Induced pluripotent stem cells can be expanded indefinitely and they are capable to differentiate in all the derivatives of the three germ layers.

Another intriguing features of being pluripotent is its reliance on gene expression heterogeneity.

Learn more about Pluripotent here : brainly.com/question/18243320

#SPJ4

4 0
1 year ago
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