Answer:
D. The sympathetic system prepares the body for stress and activity and the parasympathetic system prepares the body for rest.
Explanation:
- Sympathetic and Parasympathetic nervous system are two divisions of autonomic nervous system.
- Acetylcholine is a common neurotransmitter released by preganglionic neurons of both systems.
- The post Ganglionic neurons of these two systems release different neurotransmitter.
- The sympathetic nervous system is concerned with 'fight and flight response'
- The parasympathetic nervous system is concerned with 'rest and digest ' response.
Answer:
Photosynthesis is done by producer. This process requires energy from sunlight and carbondioxide from abiotic matter. Photosynthesis makes energy storage molecules and oxygen for an ecosystem.
Explanation:
Photosynthesis is a process in which food is produced in the presence of sunlight. Carbondioxode enters through small opening called stomata and water is absorbed by the plant from the soil. When these two substances combine in the presence of sunlight, it produces two substances i. e. oxygen and glucose. Oxygen is released in the atmosphere and glucose is stored in different parts of plant body.
The correct answer is: damage to the left posterior brain or left optic radiation.
This condition characterized by the loss of half of the visual field on the same side (right side in this case) in both eyes is called homonymous hemianopsia. This happens because information from the optic nerves crosses to the other half of the brain via the optic chiasm (X shape).Since, the visual images from the right side travel from both eyes to the left side of the brain, it is most likely that the injury, tumor or trauma occurred on the left side of the brain. Stroke can also be the cause for the hemianopsia.
Answer:
Black bears feeding niche is quite varied. A black bear eats all sorts of plants and plant material, nuts, all sorts of berries and meat. They have long sharp claws which help them rake the soil to find food and roots. Almost eighty percent of their diet consist of plant material while the rest is animal protein.
Explanation:
1. b
2. b
3. a
4. c
5. b and a
6. c and d
7. d
8. c
9. d
10. a
