We can explain Mr Mwape that variation in his children through Mendel’s law.
Reason why three children tall and brown one of MR Mwape was short and dark is: -
• Skin color and height is controlled by a lot of genes and every human gets one set of genes from their mother and the other set of genes from their father.
• Now imagine these genes are denoted as ‘T’ for tall and ‘B’ for brown and ‘t’ for short ‘b’ brown. We can assume that MR Mwape and his wife having genotype TtBb.
• During the process of gene segregation and assortment, the majority percentage of children got the heterogenous dominant genotype, which is ‘TtBb’, overlapping the effect of gene ‘t’ and ‘b’. While another child got a homogenous recessive genotype ‘ttbb’ from both the parents, hence the genotype is prominently shown in the fourth child and not in other as gene 't' and 'b' were dominated by genes 'T' and 'B'.
To learn more about Mendel’s law, refer: -
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Pollution and pesticides had made bald eagle in the list of endangered species for several decades. The DDT spread across the aquatic ecosystem by agricultural washing and the Bald eagle began eating the contaminated fishes. There have been immense efforts done to recover the population of the bald eagle. The recovery process included removal of the alien species and helping the native species to recover in its habitat. The Bald Eagle Protection Act prohibits the killing and possessing the bird or its egg, feather and nest. The efforts to restore the species included elimination of the use of DDT, the habitat including the nests were protected from all kinds of human intervention. The recovery had the main conservation objective to maintain the current population and providing the required conditions to increase the numbers. The species is under vigilance of all sorts and the numbers have increased every year since then.
Answer:
because it rises in the east
Explanation:
but the sun doesn't rotate our earth rotate.
Yes, all ecosystems need to have a top predator (quaternary consumers) so that the cycle of the food chain can stay complete.