Answer:
An appreciation of the fundamental principles of evolutionary biology provides new ... not health or longevity; that our evolutionary history does not cause disease, but rather ... played an important role in biological, medical, and social sciences alike. ... that humans as a species have limit the range of investigations possible.
Explanation:Evolution as fact and theory · Social effects · Creation–evolution controversy · Objections to evolution · Level of support · Tree of life.svg Evolutionary biology portal · Category · Related topics · v · t · e. Evolution is change in the heritable characteristics of biological populations over successive ... Thus, in successive generations members of a population are more ...
I hope you meant, a cross between BbPp and BbPp, else for bbpp x bbpp, all the progeny will be bbpp.
We need to work out a Punnett square to determine the genotypes resulting from the cross between BbPp and BbPp. The dyhybrid cross results in 16 different genotypes, of which a few have the same phenotypes.
It can be seen that there are 4 different kinds of phenotypes present, in the ratio 9:3:3:1.
Answer:
E. coli is a bacteria not a parasite. It is not harmful to animals
Explanation:
Escherichia coli (E. coli) bacteria normally live in the intestines of people and animals. Most E. coli are harmless and actually are an important part of a healthy human intestinal tract. However, some E. coli are pathogenic, meaning they can cause illness, either diarrhea or illness outside of the intestinal tract. The types of E. coli that can cause diarrhea can be transmitted through contaminated water or food, or through contact with animals or persons.
it does not cause ill-
ness in animals, but the animals can
serve as carriers of the bacteria. These
bacteria can be found in cattle, sheep,
pigs, deer, dogs and poultry. Infected
animals, especially young ones, can
shed the bacteria in their feces. Cattle
are the main carriers.
Answer:
No short answer.
Explanation:
First and second generation pesticides differ vastly in terms of their contents and effects.
First generation pesticides were used in early 20th century up until the 1940's and they consisted chemicals such as mercury and lead which were not biodegradable and they started adding up in the soil until it was not fertile anymore. Second generation pesticides were divided into three groups as chlorinated hydrocarbon, organophosphates or carbamates and consisted of chemicals that were less harmful for the soil and did not accumulate over time. Some examples to second generation pesticides can be DDT or dimethoate.
Broad spectrum and narrow spectrum pesticides have the difference of effective range between them. Narrow spectrum pesticides are designed to target a specific organism such as a specific plant or an insect whereas broad spectrum pesticides are applicable to a wider range of organisms and still have the same effect for each.
Chitin Inhibitors can be given as an example of narrow-spectrum pesticides and the second generation pesticides in the answer can be given as an example of broad-spectrum pesticides.
I hope this answer helps.
The change in the environment affected how the organism would evolve to be so that it could survive. the term for that is survival of the fittest, and only the fittest would be able to survive the conditions of its surrounding environment. hope this answered your question. :)
