Answer:
By changing allelic association recombination can aid solution, either helping to bring two beneficial alleles from an otherwise well adopted genome. He natural selection only acts on the population heritable traits selecting for the beneficial alleles and thus increasing their frequency in the population, while selecting against deleterious alleles and thereby decreasing their frequency as the process known as adaptive evolution
Answer:6/16
Explanation:the probability of a offspring to have black hair chances are 6/16
A limiting factor is anything that constrains a population's size and slows or stops it from growing. Some examples of limiting factors are biotic, like food, mates, and competition with other organisms for resources. Others are abiotic, like space, temperature, altitude, and amount of sunlight available in an environment. Limiting factors are usually expressed as a lack of a particular resource. For example, if there are not enough prey animals in a forest to feed a large population of predators, then food becomes a limiting factor. Likewise, if there is not enough space in a pond for a large number of fish, then space becomes a limiting factor.
Answer:
During Darwin's journey on the HMS Beagle, most of his observations were made on the Galapagos Island. Some of his observations were:
1) The Plants and animals differed from island to island.
2) The tortoise on one island had saddle-shaped shells while on the other island had dome-shaped shells.
3) He observed the different finches of the Galapagos island.
4) He discovered 13 different types of finches present on the Galapagos island.
5) He observed that each that each type of the finch differed in the beak type.
6) He observed that the beak shape changed for finches because of the different food varieties present for them in each area.
7) He observed that traits can be passed from a parent to an offspring.
8) He observed natural selection.
Answer:
With each heartbeat, the heart sends blood throughout our bodies, carrying oxygen to every cell. After delivering the oxygen, the blood returns to the heart. The heart then sends the blood to the lungs to pick up more oxygen.
