Answer:
The evolution of the heart is based on the separation of oxygenated blood from deoxygenated blood for efficient oxygen transport. pisces have a dual chambered heartwhile reptiles and amphibians are having a three chambered finally aves and mammals have four chambered hearts.
Explanation:
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11460 years old is the answer.
Answer:
As a cell is formed during meiosis in prophase I, each chromosome matches up with its opposite chromosome that is the same size. These chromosomes are both maternal (from the mother) and paternal (from the father). Then, the bottoms of these chromosomes exchange genetic information by replacing the bottom of one of their strand.Genetic recombination
When a cell undergoes meiosis, it gets either its mother's or father's chromosome for each cell. The chances for each of these is completely random, so it produces genetic diversity instead of it all coming from one parent.
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Explanation:
Meninges is <span>the general term for the layers of tough membranes that cover and protect the brain and spinal cord.</span>
Answer: 1. Hydrosphere, 2. Geosphere
The stream of water can come from the sources of hydrosphere such as oceans, rivers and estuaries the water get seep inside the pores and rocks present underground. Therefore, the water accumulates as a part of the geosphere as groundwater or aquifier.
Therefore, the given example describes the interaction between the hydrosphere and geosphere.