Hello!
Your answer is D.
"treeless, permafrost, cold dark winters"
A tundra is a large stretch of land usually near mountains, it is often snowy and very cold. It has small dunes and little to no life besides grass and some animals.
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Answer:
Within a population, each individual mutation is extremely rare when it first occurs; often there is just one copy of it in the gene pool of an entire species. But huge numbers of mutations may occur every generation in the species as a whole.
Works Cited:
Oct 29, 2007
Https://www.scientificamerican.com
Explanation:
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Answer:
Although the question is incomplete, missing options are
- In 1997, they reduced their water consumption.
- In 1996, they planted more trees to curb water pollution.
- In 1994, they used only bottled water for drinking purpose.
- In 1995, they complained about foul odor and taste in water.
Correct option: <em><u>In 1996, they planted more trees to curb water pollution.
</u></em>
Explanation:
Among given options, a clear trend of nitrate level can be seen. <u>Initially, the nitrate level increased in water in first two years (1994 and 1995) and then it decreased significantly</u>.
From the conditions given in the question, the most probable answer is B the plantation effect (<u>phytoremediation</u>). During phytoremediation, <u>plants take up nutrients including nitrate</u> from the water via roots. This nitrogen is then used for the growth and development of plant body mass (e.g. amino acids). As more plants were growing in later years, higher reduction of nitrate was seen. Resultantly, in 1997, the concentration of nitrate was dropped to 7.3 mg/L.
The other options are not correct due to following reasons.
A. There is no information on water consumption in the question
C. There is no information on people's behavior on drinking water lifestyle.
D. Nitrate in the water cannot be smelled or tasted.
Answer;
-High proportion of muscle, bone, and water and an acceptably low proportion of fat
Explanation;
-Body composition is the proportion of fat and fat-free mass in your body. A healthy body composition is one that includes a lower percentage of body fat and a higher percentage of fat-free mass, which includes muscle, bones, and organs.
-Body composition is used to describe the percentages of fat, bone, water and muscle in human bodies. Because muscular tissue takes up less space in our body than fat tissue, our body composition, as well as our weight, determines leanness.
Marfan syndrome can be caused by a substitution mutation in the FBN1 gene. This mutation is likely a harmful mutation.
From the DNA sequence of unaffected individual and
individual with Marfan syndrome we can see that C is substituted with G. Each parent with the Marfan syndrome has a 50% risk of passing the genetic defect on to offspring because of its autosomal dominant nature, so the mutation is harmful.
