Answer:
1. What process involves planting large areas with a single highly productive crop year after year?
Monoculture.
2. In a food chain, the concentration of a pollutant increases as the number of organisms at a trophic level decreases. This process is called:
Biomagnification.
Explanation:
<em>For no. 1: </em>
Monoculture means cultivating in one crop only in large areas. "Mono," means one and "culture" means to "cultivate" or "grow" in this scenario.
<em>For no. 2: </em>
Biomagnification is the accumulation of toxins in the body at different trophic levels in the food chain. "Bio," relating to a living thing or organism, and "magnification" to "grow larger" or "increase."
Hope this helped ^^
<span>Well, since there is little genetic variation, all the animals in the population are fairly similar, from a purely physical standpoint. Therefore, if there was some new form of whale lice that kills northern right whales, then presumably at least nearly 1/3 of the population would be vulnerable to this new form of whale lice. This is over simplified, but in essence a huge portion of the population is much more vulnerable to a single threat due to common disease resistances, or the lack thereof.</span>
Answer:
I think that it is an example of a passive transport
Explanation:
This is based on my assumption that brown is dominant over blue.
Since both parent have parents who are homo_zygous recessive, this tells us that both parents will be hetero_zygous.
When you cross two hetero_zygous parents, it can produce these genotypic and phenotypic ratios:
<u>Genotypic</u>
BB : Bb : bb
1 : 2 : 1
<u>Phenotypic</u>
brown : blue
3 : 1
Therefore there is a 75% chance that they will produce a brown-eyed offspring.
The answer is behavioral isolation.
Reproductional isolation is a way to prevent closely related species to mate each other. This is due to reproductive barriers which can be either prezygotic (before fertilization) and postzygotic (after fertilization) barrier. Behavioral isolation is an example of postzygotic barrier. It is based on behavior, including mating sounds and rituals. Thanks to behavior isolation, the different species (in this example gentoo penguins and emperor penguins) will have different mating rituals so they could attract only individuals of their own species, respectively.
