Answer:
A
Explanation:
Examples of mass wasting are slides, falls, creeps, and flows. Mass wasting processes are easily observable because they happen fast and suddenly and the changes are vividly evident in very short bit of time. However, other methods of erosion such as mechanical and physical weathering occur very slowly and it would take many years for the changes associated wth their proceses to be vivid to the naked eye.
Answer:
Genetic drift is simply a change in the frequency of alleles in a population.
Like shown in the comic A, there are different genes present on chromosomes. All of these genes are made up of a pair of alleles. These alleles determine the genotype and the resulting phenotype of an organism.
If none of the alleles is favored by the environment, then a population will have equal no.of all the variant forms of a trait. Like shown in the comic B, both the green and the grey animals are favored equally.
But if natural selection occurs and one form of the allele variant is favored, then a genetic drift will occur. Most of the organisms will have the alleles which are favored by the environment. Like shown in Comic C, where the grey alleles are favored more than the green alleles.
Darwin made numerous observations and collected evidence that led him to purpose a revolutionary hypothesis about the way life changes over time. I hope this helped :)
<u>levels of organization </u>
from the smallest units of life to the largest units of the environment :
organelles >>> cells >>> tissues >>> organs >>> organ systems >>> organisms >>> populations >>> communities >>> ecosystems >>> biosphere
Hi Geny!
Question - Describe the cell theory and the developments that led to the cell theory.
Answer:
There are 3 main components of cell theory:
- Each and every organism is wither unicellular or multicellular.
- The basic unit of life is the cell.
- Cells are created from cells that had existed previously.
There were 3 scientists that made cell theory each of the 3 components of above were the 3 scientists.
- Mathia Schleiden discovered that plants were made of mainly cells.
- Rudolf Virchow discovered that cells are created from calls that had existed previously.
- Theodore Schwann discovered that animals were also made of mainly cells.
Hope This Helps :)
