Answer:
villi is used and is very imp as it has structure like finger type which help for increase in surface area for more absorption and less wastage of water/minerals
Answer:
Smaller populations have a greater chance of having one allele expressed disproportionately.
Explanation:
Genetic drift corresponds to a drastic casual alteration of the natural order, reaching the genotypic concentration of one or several species, not preliminarily involving natural selection factors, but caused by sudden events. Such phenomenon is characterized by the occurrence of ecological catastrophes, for example: earthquakes, tsunamis, tornadoes, floods, burnings, avalanches and other processes, affecting a large population contingent. Thus limiting the genetic content of a particular group, restricted to the prevailing individuals.
In this situation, with low variability, differentiated individuals will experience a more significant selection pressure in relation to the ascending lineage, which minimized the achievements of selection due to the high number of living individuals. In this scenario, smaller populations will have a greater chance of having a disproportionately expressed allele as the number of members is reduced. We can also see this effect if by using a coin we imagine that heads and tails are two alleles in a population and each coin toss represents one member of that population.
1 is the answer because it’s talking about chemical
Answer:
convex lens
Explanation:
because when parallel rays of light pass through a lens are brought together through a lens
Answer:
A) drive reduction
Explanation:
Motivation is the urge that fuels and directs human with the energy to accomplish a given task. Motivational theory is accustomed with the role of searching for what drives individuals to work towards a goal or a task.
The drive reduction theory explains physiological ideology required bring out an aroused tension state that motivates an organism to satisfy the need.
Instincts Theory reflects innate and fixed pattern of complex behavior in animals. For example, making holes of crabs for safety.
Optimum Arousal Theory drive people to engage in certain activities in the quest to keep up with an optimum level of physiological arousal.
Hierarchy of motives: According to Maslow's pyramid, hierarchy of motives is explained based on need to satiate or quench the least physiological needs in order to be active before subsequent level needs.
