The recessive allele frequency for the population.
150 pigs have 300 alleles total
There exists 180 alleles for the recessive trait blue eyes.
Assign 'q' to the frequency of blue eye alleles
q = 180/300 = 0.6 Answer
Answer:
sympatric speciation
Explanation:
Different sympatric species have the same closest ancestor and live in the same area but inhabiting different niches.
The steps for sympatric speciation are:
- An ancestral species inhabit a geographic area.
- With time, different populations of the same species occupy different niches or microhabitats in this general area.
- As the microhabitats are different, they have different environmental pressures that are acting on each population.
- These pressures lead to the origin of differences between groups, which need to adapt to each environment
- Each population suffers genetic changes due to environmental conditions. These changes are inheritable.
- With time, these differences drive to the final complete divergence of populations, becoming different species and reproductively isolated.
In sympatric speciation, the interruption of genetic flow must be fast, and there must be differences in niches so no species can compete and displace the other species. <em>Speciation occurs in the same distribution area of the original species</em>. The new species originate in a place with no physical barriers but different environmental pressures.
In the exposed example,
- <em>The introduced Cichlid fishes 200 years ago</em> → Original species and the common ancestor between the new derivated species
- <em>The lake</em> → general geographic area
- <em>The main lake and the streams</em> → Microhabitats or niches with different pressures each
- <em>The groups are splitting into two genetically and physically different types of fishes. They do not mate. There is no genetic flow between groups.</em> → Speciation process.
Answer:
Water is a reactant during the process of photosynthesis.
Explanation:
Photosynthesis is a process in which water is absorbed by the plant from the soil and carbondioxide enters through a tiny opening called stomata. When both water and carbondioxide react with each other in the presence of sunlight producing oxygen and glucose. Oxygen is released in the atmosphere through stomata while glucose is stored in different parts of plant body.
Answer:
fungi
Explanation:
Fungi are decomposers, that's why you can find them on dead trees and sometimes animals.
I don't know at all im lost
