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3 years ago

Which statement best describes the data set?

Biology

1 answer:

zhannawk [14.2K]3 years ago

5 0

Answer:

It is neither accurate nor precise.

Explanation:

The data set is neither accurate nor precise.

Accuracy is defined as the closeness of a measurement to the true value.

Now let us look at the average of the data set:

30 + 17 + 27 + 21 + 32 = 127/5 = 25.4

The average of the data set is 25.4, whereas the correct value provided is 25. The difference between the average of the data set and the correct value is 0.4 which is beyond the margin of error allowed in measurement. Hence, the measured data is not accurate.

Also, precision is defined as the closeness of repeated measurement to one another.

From the data set, the individual values are not close to one another in any form and the difference between them are more than the margin of error allowed in measurements. Hence, the data is far from being precise.

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Identify the appropriate time period where vascular plants with woody tissues, seeds, and veins shared the land with spiders, sc

dimulka [17.4K]

Answer is Middle Paleozoic era.
Paleozoic era was in 542 Ma - 245 Ma and it has 6 periods as Cambrian, Ordovician, Silurian, Devonian, Carboniferous and Permian.
360-280 Ma - forming of vascular plants with woody tissues, seeds and veins.
430 - 410 Ma - forming of jawed fishes and first amphibians.
420 Ma - forming of scorpions
360 Ma - forming of crustaceans.

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3 years ago

The mediastinum is the cartilage that forms the lower portion of the breast bone.

algol [13]

The answer is False. The mediastinum is not a cartilage that forms the lower portion of the breast bone, the mediastinum is the middle part of the chest cavity, which is located between the lungs of an individual. The Mediastinum is the area located between the lungs, it contains organs such as the heart and its large arteries and veins. It may also include the trachea, the esophagus, the bronchi and last but not the least the lymph nodes.

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3 years ago

Not only are the kidneys considered organs of excretion, but they have an endocrine function as well as an important role in the

stira [4]

Answer:

True

Explanation:

One of the edocrine processes the kidney is involved in is called the RAAS (Renin-Angiotensin-Aldosterone System) which is a signaling pathway involved in blood pressure control. It involves a number of hormones:

Angiotensinogen is produced by the liver in response tovarious inflammatory proteins

Renin is a protease produced by the kidneys in response tohypotension,

Angiotensin II increases blood pressure via a number of mechanisms:

Aldosterone acts to increase reabsorption of Na+ and water and increase elimination of K+ and H+ in the distal tubules of the kidneys for ion concentration maintenance

5 0

3 years ago

How can we conserve energy and instead of wasting energy?

KatRina [158]

Answer:

Adjust your day-to-day behaviors. To reduce energy consumption in your home, you do not necessarily need to go out and purchase energy efficient products. ...

Replace your light bulbs. ...

Use smart power strips. ...

Install a programmable or smart thermostat. ...

Purchase energy efficient appliances.

8 0

3 years ago

Puberty is caused by the release of follicle stimulating hormone and luteinizing hormone from the pituitary gland. These hormone

nlexa [21]

Answer:

The onset of puberty in girls by the release of these two hormone is an example of typical signal transduction pathway

Explanation:

Specifically Luteinizing Hormone (LH) along with the Follicle stimulating Hormone (FSH) released from pituitary gland gets attached to the receptors present in the cells of ovary and generate a series of chemical reaction or cascade of biochemical reaction in a cell (activation of secondary messengers like cAMP) to produce estrogen and progestrone that will help in follicle formation and ovum maturation.

6 0

4 years ago