Answer:
1. genetic drift; 2. natural selection; 3. gene flow; 4. natural selection
Explanation:
<u>1. A fish net captures twenty fish, all who happened to have large spots:
</u>
The mechanism of evolution that is playing out in this situation is most likely <u>genetic drift.</u> Genetic drift occurs when a random change occurs, resulting in the selection of a number of individuals by chance, rather than based on their level of fitness. The fish with large spots allele were selected against by chance, not necessarily because the fish with the small spot alleles were better fitted.
<u>2. Small spotted fish escape from predators better:</u>
The situation here is <u>natural selection</u>. The small spotted fish possess a greater fitness as they become well adapted to escaping from predators better than the large spotted fish, which gives confers on them a greater fitness to be selected for against the large spotted fish.
<u>3. 15 large spotted fish move into this population:</u>
The movement or introduction of new individuals i<u>
</u>nto a population is what is referred to as <u>gene flow</u> in evolution, which is another mechanism of evolution that changes the allele frequency of the original population.
<u>4. Fish-eating birds catch large spotted fish more easily:</u>
This is another example of natural selection. The small spotted fish possess a greater fitness which makes them not easily preyed upon by Fish-eating bird easily, compared to large spotted fish. <u>Natural selection</u> favors the fish with small spotted alleles against the large spotted fish, and as a result, more small spotted fish would survive and reproduce more offspring with the small spotted alleles compared to those with large spotted alleles.
Answer:
Sex cells.
Explanation:
Meiosis is a type of cell division that reduces the number of chromosomes in the parent cell by half and produces four gamete cells. This process is required to produce egg and sperm cells for sexual reproduction.
I would appreciate brainliest but if not that's ok!
Answer:It would maintain high cAMP levels and elevate glucose mobilization.
Explanation:
Gas stimulates adenylate cyclase, leading to the generation
of cAMP. This signal then leads to glucose mobilization. If cAMP phosphodiesterase were inhibited, then
cAMP levels would remain high even after the termination of the
epinephrine signal, and glucose mobilization would continue
B. Population is the answer
<h2>1. Earth's Plates 2. Convection currents 3. Heat from Earth's core </h2>
Explanation:
- Plate tectonics, hypothesis dealing with the elements of Earth's external shell—the lithosphere—that changed Earth sciences by giving a uniform setting to understanding mountain-building forms, volcanoes, and seismic tremors just as the development of Earth's surface and recreating its past landmasses and seas
- The idea of plate tectonics was figured during the 1960s
- The hypothesis of plate tectonics depends on an expansive amalgamation of geologic and geophysical information
