Answer:
The population of fish with pelvic spines that arrived in the lake at time B evolved a reduced pelvis over time (beginning at time C).
Explanation:
The fossil record showed that before the time period B, the ancient sticklebacks might have had a huge pelvis which was of no use to them. As a result, through evolution at time B the pelvis reduced in the sticklebacks through natural selection. Having a reduced pelvis must have been advantageous for this ancient stickleback population, just as it is for many current freshwater stickleback populations. Hence, the correct option is B.
<span>Your stage in the life cycle is not a factor to consider when determining your risk tolerance.
True.
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Evolution is the change in heritable characteristics within a species ! :)
When a cold front happens when speaking gusty, there is a sudden drop in temperature, and there is heavy rain. When warm front approaches, The air becomes noticeably warmer and more humid than it was before.
Answer:
Autotrophs, but not heterotrophs, can nourish themselves beginning with and other nutrients that are inorganic.
Explanation:
Unlike heterotrophs, autotrophs such as green plants, are able to synthesize their food (in form of sugar molecules) starting with inorganic molecules like atmospheric carbon dioxide, water in the presence of sunlight.
This is commonly known as photosynthesis. The equation is shown below
6CO2 + 6H2O --> C6H12O6 + 6O2 + Energy
