The red-legged frog breeds in ephemeral ponds from January through March. Its relative, the bullfrog, breeds in permanent ponds from late March through May. There are two pre-mating isolation mechanism at play here,
1. Ecological isolation: The habitats are different, hence the individuals of both the species do not meet. Ephemeral ponds are temporary ponds that develop during rainy days, while the permanent ponds are full of water throughout the year.
2. Temporal isolation: The time of mating is different for both the species to avoid contact between the individuals of closely related species. Red-legged frogs mate in January to March slot and the bullfrog in the March to May slot.
Answer:The death of a loved one.
Divorce.
Loss of a job.
Increase in financial obligations.
Getting married.
Moving to a new home.
Chronic illness or injury.
Explanation:
The Coriolis effect makes storms swirl clockwise in the southern hemisphere and counterclockwise in the northern hemisphere. Because earth rotates on its axis circulating air is deflected towards the right in the northern hemisphere and towards the left in the southern hemisphere this effect called Coriolis effect.
Hurriances spin counterclockwise because the Coriolis effect. The equator rotates faster than other area of earth's surface and moving in a straight line on north to south axis will curve.
In southern hemisphere currents are deflected to the left. Storm system seem to rotate clockwise. This force is caused by the earth rotation and responsible for air being.
To learn more about Coriolis effect here
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Semiconservative replication would produce two copies that each contained one of the original strands and one new strand. Conservative replication would leave the two original template DNA strands together in a double helix and would produce a copy composed of two new strands containing all of the new DNA base pairs.
