Low tide:
When on the opposite side of the Earth that where the Sun is located
High tide: moons gravitational force pulls on water in the ocean so. That there bulges in the ocean on both sides of the planet
Answer:
D) a genetic bottleneck
Explanation:
Genetic bottleneck refers to the sudden reduction in the population size due to some adverse climatic factors such as natural calamities. It changes the allele frequencies since the survivor population mostly have different allele frequencies than the original population.
In the given example, an earthquake kills 98% of the squirrels. The survivor population exhibits different allele frequencies for the gene responsible for the thickness of stripes. Therefore, it represents a genetic bottleneck.
Given what we know, we can confirm that cells tissues populations and ecosystems are all examples of components of the biosphere.
<h3>What is the biosphere?</h3>
- This is considered the highest level of organization of life on earth.
- It is the sum of all of the ecosystems present on the planet.
- Every living thing, from cells to entire forests, are contents of the biosphere.
Therefore, given that the biosphere is the sum of all ecosystems on planet Earth and includes every living thing, we can confirm that cells and ecosystems are both prime examples of this.
To learn more about the Biosphere visit:
brainly.com/question/13219657?referrer=searchResults
The correct answer is (b) <span>They can be directly observed.</span>
