Answer:
Our cells are not poisoned to death because it is metabolized by our organs.
Explanation:
- Toxins are any chemical products that damages the functioning of our body.
- To be more specific, human body do not produce any toxins. They only discrete the waste materials that are easily secreted by our body through the metabolic activities.
- Organs like liver and kidneys are responsible for fighting against the harmful waste products and toxins by throwing it out from our body.
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
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Air pollution from dust particulates
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Pollution (especially from sediments)
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All surface mining techniques negatively affect the environment, though some methods are more damaging than others.
Answer:
Gamete C
Explanation:
During the formation of gametes, the DNA is first duplicated, and 2 separate cell divisions take place to make a haploid cell.
In the first division, the homologous chromosomes are separated
Before the first cell division, the homologous chromosomes align in the centre. In this cell, the light green and dark green chromosomes align, as do the light purple and dark purple chromosomes. These are then separated into 2 different cells, 1 gets either the light or dark green chromosome and either the light purple and dark purple chromosome. The other cell also gets either light green or dark green and light purple or dark purple.
Then, a second division takes place that separates the sister chromatids to produce what we see in the gametes A, B, C, and D.
The only one that is not possible in a healthy cell is C, because it has not received any of the green chromosomes and instead has two homologous purples.
Answer:
The bones provide structure and support to the legs. The muscles are attached to the bones by tendons. So when the muscles move, the bones also move. The joints in Zoe’s legs allow her legs to bend and flex in specific ways.
