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Rudik [331]
3 years ago
15

Which two sentences identify the characteristics of a prokaryote?

Biology
1 answer:
Mrac [35]3 years ago
6 0

Answer:

Most prokaryotes lack well defined organelles.

Explanation:

Prokaryotes are the unicellular organisms which have no true nucleus while eukaryotes have true nucleus. True nucleus means that the membrane is present around the nucleus and other organelles. Many organelles are also absent in prokaryotic cell such as mitochondria, cell wall, golgi bodies, endoplasmic reticulum, lysosomes, ribosome and vacuole.

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Which of the following is not a possible consequence of surface mining?
aleksklad [387]

Answer;

B. improved ecosystem health

Explanation;

-Surface mining is a method of extracting minerals near the surface of the Earth. The three most common types of surface mining are open-pit mining, strip mining, and quarrying.

-The environmental impact of mining includes erosion, formation of sinkholes, loss of biodiversity, and contamination of soil, groundwater, and surface water by chemicals from mining processes.The environmental effects of surface mining include;

  • Habitat destruction
  • Soil erosion
  • Air pollution from dust particulates
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  • All surface mining techniques negatively affect the environment, though some methods are more damaging than others.
7 0
3 years ago
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Why can’t food chains go on forever?
bearhunter [10]

Answer:

Because at some point in that food chain, the energy consumption has it's limit, and the predator will not have anything to hunt it. There is a limited amount of energy in a food chain that can go around, and once you reach the predator, that energy doesn't quite run out but it hits that limit where the chain has to repeat itself.

Explanation:

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3 years ago
Which weather pattern consists of a high-pressure system with descending cool, dry air that leads to clear weather?
nlexa [21]

Answer:

anti-cyclone movements

Explanation:

5 0
2 years ago
The _________ is the site of the _________ which is the first site of hematopoiesis in the developing embryo.
Ghella [55]

Answer: D

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During embryogenesis, hematopoiesis begins in week 3 in the Yolk Sac, in Pander´s Island or Wolff´s Island, commonly known as the "blood islands". These blood islands develop from the umbilical vesicle, allantois, and chorion. In week 5, blood production starts on the fetal liver, and finally, at week 12 it begins in the bone marrow, spleen and, thymus.

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Which of the following statements about reflective and refractive telescopes is not true?
evablogger [386]
It is the answer for it is d
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