Answer:
Water pollution may be defined as the contamination of the unwanted substance or pollutant with water that changes the normal characteristics of water. Three main contributors of ground water are as follows:
Chemical farming: The use of pesticides and fertilizers in the fields and its direct run off in river and groundwater causes the water pollution.
Industrial waste: The industrial waste consists of harmful chemicals and heavy metals. The direct discharge of chemical waste in the lakes, ground water and ponds makes the water dirty and causes water pollution.
Effluent from waste water treatment plant: The effluent and the harmful chemical waste release from the waste water treatment plant is the major contributor to the ground water. The effluents mix with the ground water and changes the ground water property.
Restriction enzymes and or restriction endonucleases are involved at recognizing specific sequence of nucleotides and cutting or splicing them at appropriate regions to produce fragments that can either be sticky ends or blunt ends depending on where they cut and the nature of nucleotides involved within the fragments. They play an important role in genetic engineering, as geneticists can use them for placing into extra chromosomal information and or content of plasmids in certain bacteria, from other sources, for instance antibiotics, grow and or produce many individual colonies of bacteria, isolate them and one would have many sequences for instance that can code for an antibiotic that can be extracted and used further. Assuming the bacteria's plasmid can take in that sequence.
The other guy is right, B is the answer now hurry and get that test prep done
<span>Compared to their parents, the new cows are the same species with a different genetic makeup. All cows belong to the same species - Bos taurus species, according to Carl Linnaeus. So, even if this new cow is genetically modified, it would still beong to the same species. However, its genes wouldn't be the same as its parents, given that the scientists tampered with them, which is why it now has a different genetic makeup than its parents.</span>
<span>The answer is scavengers. Scavenging is both a meat eating and a herbivorous sustaining conduct in which the forager bolsters on the dead creature and plant material present in its natural surroundings. The eating of flesh from similar species is alluded to as savagery.
A few vertebrates are scavengers. Hyenas are regularly thought of as scavengers, but on the other hand are conventional carnivores. A solitary hyena bolsters for the most part on dead creatures. Hyenas may devour a creature that has passed on to wounds, or it might take meat from another flesh eater, for example, a lion.</span>
