A.Structure relates to function, is the answer
Answer:
Explanation: Collenchyma cells are elongated cells with unevenly-thickened walls. They provide structural support, mainly to the stem and leaves.
Medulla oblongata, the lowest part of the brain, is responsible for autonomic functions like ventilation, cardiac conduction, and vomiting.
The brain is a very complex organ that controls about every function of the body. It has three main sections:
1. Midbrain
2. Pons
3. Medulla oblongata or Medulla
The medulla oblongata is situated at the lowest portion of the brain. It connects to the pons on the upper side and the spinal cord on the posterior side. It is primarily responsible for controlling some autonomic functions, some of which are essential for human survival, such as ventilation ( pons work together with the medulla and produce rhythms for respiration) and cardiac function. Other functions involve controlling sneezing, hormonal balance, etc.
To know more about medulla oblongata, refer to the following link:
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Answer;
Seedless plant.
The fossil of a plant reveals that it produced spores that were used for reproduction. It was a seedless plant.
Explanation;
-Seedless vascular plants are plants such as fern and horsetails, liverworts, mosses; which contain vascular tissues, but do not produce flowers or seed.
-These plants reproduce using haploid , unicellular spores instead of seeds.
-These plants have life cycles with two distinct stages; one in which spores are produced and one in which sex cells are produced.