Answer:
The presence of fins in both species represents an adaptation to the same environment (i.e., sea), but in no way does this adaptation means close evolutionary homology between fishes and mammal cetaceans (whales)
Answer: The organic molecules required for building cellular material and tissues must come from food. Carbohydrates or sugars are the primary source of organic carbons in the animal body. During digestion, digestible carbohydrates are ultimately broken down into glucose and used to provide energy through metabolic pathways.
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Answer:
We learned in biology class that every cell in the body has the same DNA. Whether a heart cell, skin cell or muscle cell—they all read from the same genetic blueprint. Now, scientists are learning there is more to the story.
Answer:
On his visit to the Galapagos Islands, Charles Darwin discovered several species of finches that varied from island to island, which helped him to develop his theory of natural selection.
Darwin's finches are a classical example of an adaptive radiation. Their common ancestor arrived on the Galapagos about two million years ago. During the time that has passed the Darwin's finches have evolved into 15 recognized species differing in body size, beak shape, song and feeding behaviour.
From the following items:
1. An atmosphere containing oxygen
2. wooden furniture
3.food, including vegetables, fruits, and meats
4.fibers to make cloth
5. drugs such as aspirin
6. fossil fuels such as oil, gas, coal and nutrient-rich soil
ALL of these things are one way or another, exist because of green plans. E.g. Oxygen is released by plans, while wood for furniture comes from trees.
All fruits and vegetables are grown on plans while even meat comes from animals who eat green plans.
Fibres such as wool also come from animals which eat plans, and fossil fuel is made from the remains from millions of years of old plans in the ground.
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