<span>D. Vascular tissue
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Vascular tissue is responsible for transporting water and nutrients in plants. <span> The Vascular tissue consists of the Xylem and the Phloem. The main function of the Xylem is to transport water and minerals throughout all parts of the plant. Phloem on the other hand is responsible for transporting organic molecules that are larger in size. The vascular system, consisting on the Xylem and the Phloem runs from the roots of the plats through the branches and upto the leaves. It controls the total transportation of the water and nutrients.</span>
A scientific experiment, in the form of the scientific model, is a testable model used to seek explanation for natural phenomena.
Answer:
A. Sensation
Explanation:
- <em>A sensation</em> is a mental process (like hearing, seeing or smelling) resulting from the immediate external stimulation of a sense organ often as distinguished from a conscious awareness of the sensory process, it's a physical feeling or perception resulting from something that happens to or come into contact with the body. Considering the example given the freshly cut grass, gentle breeze and sound of children laughing are the physical feelings stimulating your nose, skin, and ears.
- <em>Selective attention</em> is focusing on a particular object in the environment for a certain period, in your example, the subject is not specifically focusing on one thing at the time.
- <em>Sensory adaption</em> is the reduction in sensitivity to a stimulus after constant exposure to it, in this case, the subject is nos experiencing awareness of a constant stimulus.
- <em>Cognition</em> is the process of acquiring knowledge and understanding through thought, experience, and the senses. In your example, the data obtained by the subject is still not processed.
I hope you find this information useful and interesting! Good luck!
Positive control is Ginger root (should indicate the presence of amylase)
Negative control is Cellulose (should not contain amylase)
Here the presence of amylase is tested by testing the presence of starch using an IKI solution. Saliva is included in this experiment because it contains the enzyme amylase.
The presented picture shows 4 trophic levels of the ecosystem.
The first level is made out of primary producers, plants. The second level is made out of herbivores that feed on the plants. The third level is made out of predators that eat herbivores.
The fourth trophic level is made out carnivores that eat other carnivores.
In our case, the only organism belonging to the fourth trophic level is the wolf.
