Most commonly, jello or any kind of gelatinous material is used when making a cytoplasm, while a nucleus is represented well with a plum.
Limestone is the correct answer
True. A human haploid cell contains contain only one complete set of chromosomes (23). Meanwhile, a diploid cell has 2 set of chromosomes from the parents, thus containing 46 chromosomes.
Answer: True
A point source pollution is a single identifiable source of pollution of air, water ,noise and soil. The pollutants being responsible for pollution can be easily traced back to their origin. The pipe, drain, well, container and ditch can allow the tracing back of the source of pollution coming from the sewage drain, household waste, industrial waste and agricultural waste.
Therefore, Point-source pollution comes from a specific location and is easy to trace is true.
