Unlike natural selection, genetic drift does not depend on an allele’s beneficial or harmful effects. Instead, drift changes allele frequencies purely by chance, as random subsets of individuals (and the gametes of those individuals) are sampled to produce the next generation.
Every population experiences genetic drift, but small populations feel its effects more strongly. Genetic drift does not take into account an allele’s adaptive value to a population, and it may result in loss of a beneficial allele or fixation (rise to 100\%100%100, percent frequency) of a harmful allele in a population.
The founder effect and the bottleneck effect are cases in which a small population is formed from a larger population. These “sampled” populations often do not represent the genetic diversity of the original population, and their small size means they may experience strong drift for generations.
Answer:
nice bed sheets
Explanation:
its A i just finished with that a few days ago a
Answer:
Controls blood flow to regulate body temp.
Explanation:
Circulatory system deals with flow/transport of blood
No se we pero te dejo un momazo aquí
Answer:
i. (answer is in the file I attached)
ii. underground parts of the plants are thick , fleshy and swollen because they store food in the form of starch.
iii. Spines that have been converted into leaves. These prevent water loss by reducing surface area. The spines help defend the cacti from predatory animals. To decrease water loss due to evaporation, the cuticle is very thick and waxy.
iv. this plant is called a water lettuce it's leaves are modified to form modified to form hydrophyte They are aquatic plants that have evolved to thrive in water. This is capable of comprehending with aquatic macrophyte, which will be entirely submerged in water and in some circumstances allowed to float on the water's surface.
hope this helps :)
