Answer:
Research on the biology of aggression has clearly demonstrated that animals can be bred for aggressiveness. When a mild-mannered woman had an electrode implanted in her amygdala, she developed more aggressive tendencies. Studies have revealed diminished activity in the ________ of violent criminals.
Explanation:
animals can be bred for aggressiveness
The pollen grains contain sperm which will fertilize the egg and create a seed to sprout the next generation of plants. The main male part is the stamen. It is divided into two parts: the anther and the filament. The anther produces the pollen grains that contain the sperm needed for fertilization.
D. The nitrogen from the fertilizer made the plants grow too quickly,
which hurt the fish.
Explanation:
The best explanation for this result is that the nitrogen from the fertilizer caused the plants to grow too quickly and this hurts the fish.
This phenomenon is known as eutrophication.
Eutrophication is condition in which too much of nutrient is available in a water body.
- The presence of the fertilizer in the water body causes nutrient availability that causes more plants to grow in the water.
- The surge in the plant population will starve other life forms in the water.
- This is why the number of fishes will reduce.
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Explanation:
A hypothesis is defined as an educated guess , while a research question is simplify a research wondering about the world .