BIOLOGY COLLEGE

Which of the folowing represents characteristics of the four planets closest to the sun?​

Answers

Answer 1
Answer:

The terrestrial planets represent characteristics of the four planets that are closest to the sun. Therefore, the correct option is A.

What are terrestrial planets?

The solar system contains 4 planets that are closest to the sun. These planets are Mercury, Venus, Earth, and Mars. These planets are called terrestrial planets. Like Earth, these planets are rocky and have the same composition and structure. Hence, they are also called telluric planets.

Typically, these planets have a metallic core made primarily of iron and a silicate mantle. On their surface, they have topological characteristics like mountains, valleys, craters, etc.

Terrestrial planets have a secondary atmosphere, as opposed to large planets, which have a main atmosphere. It is well known that terrestrial planets have few or no satellites of their own. For instance, the Earth has just one satellite, but Mars has two, and Venus and Mercury both have none. Therefore, the correct option is A.

Learn more about terrestrial planets, here:

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The question is incomplete, but most probably the complete question is,

Which of the following represents characteristics of the four planets closest to the sun?​

1. Terrestrial planets

2. Giant planets

3. Dwarf planets

4. Gas planets
Answer 2
Answer:

Answer:

they are hot or can get hot

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A pharmaceutical company wanted to test a new drug developed to lessen the effects of the common cold. To test this drug, scientists tested 50 volunteers, each of whom was suffering the effects of a cold. Twenty five of the people were given the drug, while the other 25 were given a placebo, a sugar pill. None of the participants knew who was taking which pill. All participants received a pill at 8:00 am daily for the first three days of the study. All participants lived in the same environment, with the same climate, eating the same diet, and having the same level of activity. The severity of the cold, hence the effectiveness of the pill, was determined by the number of tissues each person used within 24 hours. At the end of a seven day period, it was concluded that those with the sugar pill had their symptoms disappear as well as those who had taken the new wonder drug. The executive committee decided to produce the drug anyway thinking that the public would do anything to relieve the symptoms of a cold. Type of Variable Description Dependent Variable that the researchers actually measurers, counts or observes. It is what the researcher thinks will change in response to the experimental treatment. Independent Variable that is intentionally changed by the researcher. Standardized or Controlled These variables are held constant between each group to help prevent these factors from influencing the dependent variable. Table Source: CA Surmacz (2004) Inquiring Minds Want to know: Introducing Freshmen to Experimental Design. In Tested studies for laboratory teaching. MA O'Donnell, Ed. Vol 25 Mini Workshops. Assoc. Biology Laboratory Education pp. 316-327. 1) State the research question the study aimed to address
2) What is the hypothesis?
3) Identify the independent variable versus the dependent variable.
4) What variables were held constant in this study?
5) What was the control group?
6) What data was collected during the study?
7) What this data qualitative or quantitative?
8) What was the study's conclusion?

Answers

Answer:

1. Research question is a question which is the aim of any experiment or research, in this case, the question addressed by the study is -  Testing the effects of a newly developed drug to lessen the effects of the common cold.

2. Hypothesis is an explanation for the reason for any problem it does not need the evidence and completely based on logic.

The newly developed drug is able to lessen the symptoms of a common cold.

3. Independent variable is a variable manipulated or changed during the experiment:

Administration of drug or placebo (sugar pill)

4. Dependent variable is the response to the effect of the independent variable:

Number of tissues for each volunteer

5. Control group is available that remain constant throughout the study or used to compare the results:

Administration of sugar pill to 25 volunteers

6. Data is the result that the study generated -

At the end of the 7 days or one week period, symptoms of common cold disappear in both sets of volunteers who had taken either the drug or the placebo.

7. Data in this study is found is Qualitativedata as the drug is not administrated in doses.

8. Conclusion of the study is that the Placebo effect present as sugar pills relieve the common cold so This drug needs even more analysis.

if you expose a photosynthesizing plant to water that contains both radioactive H and Radioactive 0, in which of the products of photosynthesis will the radioactive H and O show up?

Answers

  Radioactive H will show up in the sugar, C6H12O6, and radioactive oxygen will show up in the O2 emitted to the air.

What structure is only found in animal cells

Answers

Answer:

Centrosomes and Lysosomes

Explanation:

Animal cells each have a centrosome and lysosomes, whereas plant cells do not. Plant cells have a cell wall, chloroplasts, and other specialized plastids, and a large central vacuole, whereas animal cells do not.

Match the material to the category of biomass to which it belongs.

Answers

Here you go! Hope this helps

Answer:

here

Explanation:

industrial residue- cloth fabric

agricultural residue- husk

kitchen waste- egg shells

virgin wood- bark

How are a carrot, an amoeba, and a mandrill. alike

Answers

A carrot, an amoeba (a cell/organism that has the ability to change shape), and a mandrill (a primate) are all alike in that they are all eukaryotes. This means that their cells share the same features of having a nucleus and other organelles within an enclosed membrane.

In what era did the humans appear

Answers

Image result for In what era did the humans appear

Hominins first appear by around 6 million years ago, in the Miocene epoch, which ended about 5.3 million years ago. Our evolutionary path takes us through the Pliocene , the Pleistocene , and finally into the Holocene, starting about 12,000 years ago.
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