BIOLOGY HIGH SCHOOL

Which list of items would an ecological scientist most likely include when describing a forest community?

Answers

Answer 1
Answer:
The trees, soil, living organisms that rely on these tree forest ecosystem.
Ecological scientists focus on the ecological environment, the living organisms and the interaction between the environment and these living things within the community where they try to thrive and flourish in their desired environment. 

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What structure seen in the frog small intestine helps absorb food?
There are 5 Gyres on Earth. However, one of these Gyres are incorrect; meaning the energy levels are inaccurate determine which one is wrong and explain why
Earth’s magnetic field is generated by the? A. Mantle B. Lithosphere C. Outer coreD. Inner core E. Crust
PLEASE HELP!!!!!!!!What are the two stages of photosynthesis represented by B and C in the diagram shown?
a scientist claimed that he cloned a guinea pig to produce 2 offspring a male and female. the claim is not valid why

1.If you are working as a forensic scientist and are given an unknown powder from a crime scene, what would you hope to find out about the powder?2.You find that the unknown powder contains the illegal drug cocaine. If someone where to ask you to determine the purity of the substance, what would they mean? Why is purity important in crime investigations?

Answers

not exactly sure, but maybe because the powder might have something important like dna.

Answer: #1: If I was a forensic scientist and is given an unknown powder from a crime scene, I would hope to find out if the substance contains drugs or any other component that could be dangerous, and to be treated in a proper way.

2#If some would ask me to determine the purity of an unknown powder that contains illegal drugs like cocaine, they would probably be wanting to remove other substances that are added like baking soda, and the reason this is so important is that sometimes the ingredients they get to mix with have an effect on the test and may miss lid the results.

Explanation:

Describe a situation that illustrates why it is a good idea to complete the elisa assay in triplicate.

Answers

Assaying the samples in triplicate is a way of control.

Using triplicates will allow you to account for variation within the assay (intra-assay variation). This means that if you do not get the same result in all triplicate wells, you probably have a problem with experimental technique or you have made a pipetting error, so the experiment should have be repeated.  

Final answer:

Running an ELISA assay in triplicate increases the reliability and accuracy of results by providing a means of calculating the average from three measurements and mitigating the impact of random errors or procedural inconsistencies. Replicating the assay helps to ensure that results are robust and that variations in individual steps of an experiment do not significantly skew the data.

Explanation:

Completing an ELISA assay in triplicate helps to improve the accuracy of results by addressing statistical variability and potential procedural errors. Testing in triplicate ensures repeated measurements of the same sample, reducing the effect of random errors across the tests and thereby enhancing the reliability and consistency of the data collected.

In a situation where a scientist is measuring the amount of a specific protein in a blood sample, even slight inconsistencies in procedures could impact the results. For example, if the secondary antibody is not washed off thoroughly in one test, it might lead to a false increase in signal strength indicating a higher protein level than actually present. Running the assay in triplicates can mitigate this, as the outlier value can be spotted by comparing it against the other two measurements. It also allows the scientist to calculate the mean value of the three tests, providing a more robust estimation of the protein level. Thus, doing ELISA in triplicate better ensures that your results are reproducible and accurate.

Additionally, each ELISA reaction is a complex process involving a series of binding, washing, and coloring steps. Variations can creep in such as pipetting errors, uneven incubation temperatures, or variation in color development times. Hence reliable and repeatable results in scientific experiments often involve running multiple replicates, including in ELISA assays.

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What are the three types of fingerprints found in the human population? How often does each occur? Please help!

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What is Fingerprint ?

  • The mark made by the skin of a finger, used for identifying people
  • A fingerprint is an impression left by the friction ridges of a human finger. The recovery of partial fingerprints from a crime scene is an important method of forensic science. Moisture and grease on a finger result in fingerprints on surfaces such as glass or metal.
  • It is mainly study in forensics science as branch of fingerprint science

What are the types?

  • Fingerprint mainly divided into 3 categories

1. ARCH

2. LOOP

3. WHORL

How often does each occur?

  • It occurs due to finger ridges found on the outer layer of skin.
  • Various oils and different types of liquid or sweat produced by the sebaceous layer of skin.

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The three fingerprint classes are arches, loops, and whorls. Arches occur about 5% of the time, loops occur about 60-65% of the time, Whorls occur about 30-35% of the time.

Brocas area?a. is usually found in the right hemisphere
b. corresponds to brodmanns area 8
c. is considered a motor speech area
d. lateral geniculate body

Answers

As for this, the most probable and the most likely answer would be C. is considered a motor speech area.

The Broca's Area is usually found in the left hemisphere, not on the right hemisphere. It corresponds to brodmanns areas 44 and brodmanns areas 45, not brodmanns area 8. Also, it isn't a lateral geniculate body. Since its discovery, there have been researches and studies made and experiments conducted to discover its purpose. In the evolution of our overall knowledge, it has been claimed that the Broca's Area is the motor center of speech.

This cell is most likely a(n) ____________ cell based on physical features.A) eukaryotic plant

B) eukaryotic animal

C) prokaryotic fungus

D) prokaryotic bacterial

Answers

This cell is most likely a Eukaryota animal based on the physical features. Since the picture wasn't given here, I had to research this online and find the correct picture. The answer is B.
The answer is B) A Eukaryotic animal

Viruses are not considered to be living things, but they depend upon living cells for energy, reproduction, and protection at the expense of the cells that they invade. The type of relationship described could best be classified as one of

Answers

This relationship can be best described by the word parasitism.
well the red blood cells are there for our blood
white blood cells are there to protect our blood from running out of our skin when we have a cut
hope this is enough
and hope this helped!!!!!!
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