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nirvana33 [79]
3 years ago
7

Describe a service that a ecosystem provides in your community that should be protected to ensure that the quality of the servic

e contains
Biology
1 answer:
ddd [48]3 years ago
8 0
In our community the ecosystem provides fresh drinking water via pipes called citywater or ground water. It should be protected well, because it is our cities only source of clean water, ''purified''.
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Which of the following is an example of specific immunity?
zvonat [6]

Answer:

Immunity to Small Pox

Explanation:

Over the years, Europeans had built up an immunity to smallpox because many had contracted the disease and still survived. As the population grew children were born with some immunity to the disease. When the Europeans arrived in the Americas, and smallpox spread around the native peoples, the Europeans did not contract the disease because they were immune. However, since the natives were not immune, they slowly died of due just to the disease as well as some parts of the war between the europeans.

4 0
3 years ago
Compare the sugar-phosphate arrangement in the backbone of the DNA from the plant, the manmal and the bacterium. Are there any d
eimsori [14]

Answer:

No, there are no differences

Explanation:

Deoxyribonucleic acid (DNA) is a molecule composed of two polynucleotide chains that interact together in order to form a double helix. This molecule (DNA) carries the genetic instructions that make each species unique. In DNA, each polynucleotide chain is composed of nucleotide monomers: a nucleotide is composed of a deoxyribose sugar attached to a phosphate group and one nitrogen-containing base (i.e., adenine, thymine, guanine and cytosine). This basic structure is the same among different species, and, therefore, genetic differences between different groups (in this case, animals, plants, and bacteria) are caused by differences in the nucleotide-base sequences of their DNA molecules.

4 0
3 years ago
Can you help me with biology?
ahrayia [7]

Answer:

1: 46

2: skin?

3:21

4:2nd one

5: last one

4 0
3 years ago
Millions of years ago, the Sierra Nevada region began to be uplifted along a crack in Earth's crust. The region on the other sid
BabaBlast [244]
D. Fold mountain that appeared wavy I think but just in case check an other answer
7 0
3 years ago
Dangling high above the ground, this rock climber relies on muscular strength to pull her weight higher and higher. However, mus
Aloiza [94]

Answer:

The correct answer is - It has to act together with the nervous system mainly with other systems that assist in rock climbing.

Explanation:

Rock climbing is a physical activity or sport that could practice indoor or outdoor with mountains. It is a sport that requires physical and mental strength as it requires muscle strength, coordination, or balance, agility, endurance, and mental control over body and mind.

Muscular systems involve pulling the weight of an individual towards and leg muscles to hold whereas the nervous system controls or maintain the actions of muscles and also helps in balance the body of the climber. This neuromuscular set helps in maintains the muscle's tonicity in order to execute the action of climbing.

Other than these two main body systems there are cardiovascular system, circulatory system and respiratory system also helps in providing the conditions like increase oxygen input, high heartbeat, and more.

6 0
3 years ago
Read 2 more answers
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