Urban areas are crowded places with many apartments, offices, restaurants, parking lots and shopping centers. Comparing the amount of dirt, wastages and pollutants that are released into streams and lakes by each of these sources, we can conclude that the construction of a shopping mall or parking lot contributes a lot to the addition of the wastage into the streams and lakes
A shopping mall and parking lot in itself occupies a lot of space hindering the air balance and also increasing the traffic in the area and the adjacent areas leading to this area. On the other hand , this construction accommodates hundreds of shops that discards bulks of packaging materials in the form of plastic covers, fabric, card boards and other wastages which will have to be dumped every day.
Apart from this, urban areas have major part of the land covered with roofs and roads thus making all the rain water flow into the sewer and drainages washing out chemical wastes, pet wastes and other garbages into the streams and lakes.
Answer:
The correct answer is Option C. The wing of a bat.
Explanation:
Homologous structure to the human forearm is the wing of a bat. The human forearm has the same internal structure to wing of a bat.
Forearm of both human and bat contains two bone named ulna and radius. It contains muscle like flexors and extensors which helps in the movement of forearm. Internally the structure is same but look different in appearance from outside.
The question is incomplete. The rest of the question is :
From these experiments, Mendel developed four hypotheses. They include all but ___________. A. One heritable factor may be dominant and mask the other factor. B. Any organism that "shows" a heritable factor must be homozygous. Eliminate C. An organism has two "heritable factors", now called genes, one from each parent. D. sperm or egg carries only one heritable factor for each trait in the offspring.
Answer:
<em>The hypothesis which is excluded is B 'Any organism that "shows" a heritable factor must be homozygous.'</em>
Explanation:
The hypothesis is wrong because even heterozygous traits are heritable.
The hypothesis mentioned in option B cannot be considered correct because Mendel's studies showed that all traits can be inherited from the parents. All factors whether dominant or recessive, homozygous or heterozygous are heritable characteristics. Mendel's study also confirmed that genes might carry homozygous or heterozygous alleles and these alleles independently assort into gametes and are heritable.
All other hypotheses are correct and their authenticity was validated after Mendel performed his experiments.
Answer:the last one is wrong 1.5 million
Explanation:
