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lisabon 2012 [21]
4 years ago
13

In which layer do organisms on earth live?

Biology
1 answer:
timama [110]4 years ago
5 0
Organisms on earth live in the Biosphere
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List 11 mail systems of the human body
sukhopar [10]

11 Systems would happen to be

- Muscular

-Endocrine

-Circulation

-Lymphatic

-Respitory

-Integumentary

-Repreductive

-Urinary

-Digestive

5 0
3 years ago
Explain why global efforts are being made to mass vaccinate populations and the importance of herd immunity in wiping out diseas
natali 33 [55]
If you’re referring to the current Coronavirus pandemics, the reasons we want to mass vaccinate the population is to stop the spread by making it harder to find a host that it can use to replicate. The more times the RNA virus replicates, the more mutations are generated, the more likely a strain, that can escape the any immunity developed, can occur. Herd Immunity is what will help reduce the ability of a virus to spread. If the virus can’t find a host to replicate in (because the host is immune to the virus) the harder it is for the virus to spread.
3 0
3 years ago
A phycologist is interested in determining the proportion of algae samples from a local rivulet that belonged to a particular ph
Reptile [31]

Answer:

The proportion 'p-hat' that were cyanobacteria is 0.76

Explanation:

The proportion of cyanobacteria is the relationship between the whole sample and the actual quantity of cyanobacteria found in the sample, that were not other algae. In general, proportions are written as fractions. The<em> numerator is the number of cyanobacteria in the sample, while the denominator is the total number of organisms in the sample</em>.

So, in the exposed example we know that

  • The sample was composed of 50 algae
  • There were two categories for the sample: algae that were cyanobacteria, and algae that were not cyanobacteria
  • Algae that were cyanobacteria = 38
  • Algae that were not cyanobacteria = 12

If we want to study the relationship between the sample and cyanobacteria and express it as a proportion, then we need to divide the number of cyanobacteria by the number of algae in the sample. This is

38/50 ----> Fraction expression of the relationship between cyanobacteria    

                  and the sample

0.76 ----> Proportion of cyanobacteria in the whole sample.

8 0
3 years ago
A team of scientists is working to formulate a drug that can treat children who are diagnosed with gigantism. Which effect shoul
Aleonysh [2.5K]

A team of scientists is working to formulate a drug that can treat children who are diagnosed with gigantism. Gigantism is caused by the excess production of growth hormone by the pituitary gland present in the fore-brain. Growth hormone in turn signals the liver to produce a second harmone, Insulin-like Growth Factor-1 (IGF-1). The growth hormone and IGF-1 together tell the cells in the muscles, bones and skin to increase their number. Hence the possible effect of the administered drug will be to decreases the secretion of substances from the pituitary gland that cause growth.

7 0
4 years ago
Read 2 more answers
Patent fingerprints, or visible fingerprints, are left on a smooth surface when blood, ink, or some other liquid comes in contac
lana [24]

Answer:

Answer is option A (True).

Explanation:

The fingerprint pattern of an individual is unique as no two individuals have the same pattern and it remains unchanged. So fingerprints are considered as one of the main types of physical evidence that can be recovered from a crime scene for identification purposes.

The three types of fingerprint impressions are;

Patent fingerprints or visible fingerprints - They are visible prints that are left on a smooth surface of another object when foreign substances such as blood, ink, or some other liquid present on the skin of a finger come in contact with the surface. These prints are easily identifiable and are visible with the naked eye without any technological enhancements.

Plastic prints - They are visible, three-dimensional prints that are left on soft surfaces such as freshly painted surfaces or materials like wax, gum, clay, soap, etc when a finger comes in contact with that surface resulting in an indentation. These prints are easily observable and no enhancement is required.

Latent prints - They are invisible fingerprint impressions that are left on a surface as a result of the perspiration, moisture or oil found in the ridges of fingers. Since they are not visible to the naked eye, enhancement is required upon their collection.

8 0
3 years ago
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