Answer:
Overfishing is the level of excessive capture of marine animals.
Explanation:
Overfishing poses a great threat to marine biodiversity and ecological balance. The abundance of populations of large predators such as cod, tuna and swordfish has decreased by 90% due to overfishing. If we continue fishing at the current rate, scientists estimate that by 2048 any fish in the sea will have disappeared. Our seas are vulnerable and sensitive and a sudden and significant change in the number of individuals of a species can put great pressure on their ecological environment and a change in the balance of the oceans, and even in the food chain of other species.
Answer:
C genetic drift
Explanation:
variation in the relative frequency of different genotypes in a small population, owing to the chance disappearance of particular genes as individuals die or do not reproduce.
Answer:
1:0
Explanation:
A dominant trait can be described as a trait which masks the effect of a recessive trait. A recessive trait can be described as a trait which gets suppressed by a dominant trait.
In the above-mentioned scenario as the dog carrying the dominant traits has homozygous alleles for both the traits, this means that the offsprings produced will have the same phenotype as the parent with the dominant alleles.
The genes received by the recessive parent will be suppressed.
Answer: 0.69 m/ mile.
Explanation:
The altitude gradient between two cities X and Y =
Given: Two cities are separated by 200 miles.
City X has an altitude of 122 meters.
City Y has an altitude of 260 meters.
The altitude gradient between two cities X and Y =
Hence, the altitude gradient between the two cites = 0.69 m/ mile.
Answer:
1. Presynaptic cell 2. Postsynaptic cell and 3. Neurotransmitters
Explanation: Just did the assignment