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Paraphin [41]
3 years ago
13

How can human selectivity alter the traits of organisms?

Biology
1 answer:
Katena32 [7]3 years ago
5 0

Answer:

The concept predates the term; Plato suggested applying the principles of selective breeding to humans around 400 BC. Early advocates of eugenics in the 19th century regarded it as a way of improving groups of people. In modern usage, the term eugenics has close ties to scientific racism and white supremacism.

Explanation:

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Pretend that you are writing a letter to the president proposing ways that the US can reduce its contribution to climate change.
ahrayia [7]

Answer:

Dear Mr. President,

Your strong voice has called attention to the risks of human-induced climate change and the need to take timely and effective steps to address it. We are pleased to report further progress in our efforts to advise you on climate policy options that could help encourage these steps.

- (Explain what you learned in class today ) I don't know what you were taught in class so you have to figure what to put here.  

Mr. President, our temperatures are consistently rising while moisture is increasingly evaporating. Forest management is merely one piece of the puzzle — something our own firefighters would be quick to remind you. Since 2009, our state has spent more than $130 million on forest health and fire preparedness. These events still overwhelm our residents and resources, because these fires are unlike anything people have seen before.

Sincerely,

Explanation:

hope this helps!

4 0
3 years ago
The role of active cytotoxic T cells is to attack _____. a. body cells that have been infected b. extracellular viruses and bact
konstantin123 [22]

Explanation:

The role of active cytotoxic T cells is to attack <u> </u><u>body cells that have been infected</u>

5 0
4 years ago
What cell made of what?
Orlov [11]

Answer:

The tree main cell components are: plasma membrane, cytoplasm and nucleous

Explanation:

The plasma membrane is the a bilipid membranous layer composed of proteins and carbohydrates.

The cytoplasm is a jelly-like substance composed of mainly water and found between the cell membrane and nucleus.

The nucleous is an organelle which contains genetic information (DNA) on special strands called chromosomes.

5 0
3 years ago
im on a timed test in online schooling and nobody will help me,the question is: The driving force behind the water cycle and how
Yuliya22 [10]

Explanation:

<h2>It is interesting to note that CO2 is still believed to be the No 1 greenhouse gas instead of water vapour. Many excellent climate scientist (e.g. Richard Lindzen, Roy Spencer, John Christy, etc) have dealt with the issue and shown both in books and research articles that CO2 is a very minor player governing global climate.</h2><h2>So what drives climate?</h2><h2>The answer must obviously be found in the hydrological cycle, where the oceans play a major role together with extraterrestrial process with the Sun having the ultimate role. We know that solar energy (insolation) does not vary sufficiently to explain the climatic excursion our planet has experienced on a short and long term. It is sufficient to consider the Little Ice Age and the Medieval Warm Period, not mentioning the past ice ages, to understand that there are many complicated factors to consider before we can explain climate variability.</h2><h2>Solar activity is naturally a major player but this does not mean only total solar insolation (TSI) but also solar magnetic activity. Also the gravitational influence of the entire solar system must be taken in account, not forgetting our own natural satellite, the Moon, influencing at least ocean tides. Very interesting views on climate variability and cosmic activity have been presented by Henrik Svensmark.</h2><h2>A very simplistic example how the water cycle could adjust climate is the following mental construct: The Sun warms the ocean surface increasing evaporation. Increase in water vapour content decreases the density of the air, which thus rises to higher altitudes where eventually adiabatic cooling reaches a level where water vapour starts to condense. The availability of condensation nuclei, possibly enhanced by high energy cosmic radiation especially during low level solar magnetic activity, leads to strong cloud formation. This eventually limits solar warming of the ocean surface and decreases evaporation with less cloud formation. This entire cycle can be compared to a very effective thermostat, by some aptly termed the water thermostat responsible for keeping global temperatures at a suitable level depending on local conditions</h2>

BY SIMRAN

MY HEART

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FOLLOWING

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HIM❤❤

6 0
3 years ago
Read 2 more answers
A 21-year-old college student presents for her first annual exam. She has been sexually active for 1 year and has had two partne
mojhsa [17]

Answer:

<h2>Diseases transmitted through sexual contact are sexually transmitted diseases. Individuals having more than one sexual partners and doing unprotected sex are more prone to sexually transmitted diseases.</h2>

Explanation:

Individuals having more than one sexual partners and doing unprotected sex are more prone to sexually transmitted diseases. Here, the college student has more than one partner and not always use the condoms. So, she is prone to have sexually transmitted diseases if her partner are infected. Presence of warts indicates that she might have infected with Human Papillomavirus (HPV). HPV is a sexually transmitted infection (STI).

5 0
3 years ago
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