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Crank
3 years ago
5

How do you know how old a tree is?

Biology
2 answers:
LenaWriter [7]3 years ago
3 0
By the number of rings inside the trunk
enot [183]3 years ago
3 0
Count the rings in the inside of the tree. Unfortunately this can't be done without cutting the tree.
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Another name for cell division is the
djverab [1.8K]
M phase, or mitosis. 

(You don't need to know this for your course but more properly cell division could also refer to meiosis or binary fission.)
5 0
4 years ago
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You are interested in studying a gene called CFTR because mutations in this gene in humans cause cystic fibrosis. You have made
Juliette [100K]

Answer: Both the mouse and human beings are encoding the proteins having similar functions.

Explanation:

The CFTR gene in the mouse and CFTR gene in the human beings encode proteins that perform similar function,this is so because if the results are same then it means that both mouse and human beings are encoding the protein that have similar function.

Option A is incorrect  because both humans and mouse are eukaryotes so they have introns and because of that even if the gene sequences are different they can still encode protein.

Option B is incorrect because  amino acid sequences can be similar inorder to have the similar function. If glutamic acid is replaced by aspartic acid, it won't have different function the function will remain same. So, identical amino acid sequences are not required. They can be similar too.

8 0
3 years ago
Which type of study design is used in the following scenario:
Rus_ich [418]

Answer:

Explanation:

Because that’s the way it should be

8 0
3 years ago
Ileocecal sphincter tone decreases (relaxes) after distention of which structure?
stepan [7]
Ileocecal sphincter tone decreases after distention of colon. This sphincter separates ileum and cecum and is under the control of vagus nerve. 
6 0
3 years ago
Conclusion: (15 points) Use your data to answer the following questions in your own words. Use complete sentences, and be as det
eduard

Answer:Answer below

Explanation:

It's kinda hard to answer without the scenarios present.Wait nvm 

1.  the greenhouse effect is the process by which radiation from a planet's atmosphere warms the planet's surface to a temperature above what it would be without its atmosphere.The greenhouse effect occurs naturally. Lately the greenhouse effect has been magnified due to greenhouse gases emitted into the atmosphere by humans. and global warming is a gradual increase in the overall temperature of the earth's atmosphere generally attributed to the greenhouse effect caused by increased levels of carbon dioxide, CFCs, and other pollutants.Global warming refers to the increase in annual average temperatures across the globe. As the amount of greenhouse gases in the atmosphere increases, the planet becomes warmer and warmer on average.

2. atmospheric carbon dioxide acts as a thermostat in regulating the temperature of Earth

3. fossil fuels like coal oil and natural gasses

3 0
2 years ago
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