Answer:
The correct answer is D
Explanation:
The primary function of the large central vacuole in a plant cell is to maintain turgor pressure against the cell wall of the plant. This vacuole also perform other functions such as storage (water and other nutrients) and waste disposal. When this vacuole is damaged in plant cells, the cells may no longer be able maintain turgor pressure and store materials (water inclusive). Also, <u>If the cell cannot store raw materials via the large central vacuole, the chloroplast will lack the raw materials required for photosynthesis</u>.
Natural selection occurs to give help the best survival chance to the organisms.
Answer:
c) matter in an ecosystem flows in one direction and is never reused.
Explanation:
A is true
The sun is the ultimate source of energy and the process is Photosynthesis.
Answer:
1. false
2. true
3. true
Explanation:
1. Annuals are the plants that complete their life cycle in one season or one year. These are the herbaceous plants that grow, flower and die in one season. Examples of annuals are geranium, marigold, etc.
2. In a flower, the whorl of petals is called corolla while the whorl of the sepal is known as calyx. In flowers, calyx and corolla together make perianth. The calyx is outer to corolla in a perianth.
3. The fruit is a matured and ripened ovary that provides protection to the seeds present in it. Fruits are formed after fertilization and may contain one or more seeds. Tomatoes are the simple berry fruits while cucumber is pepo, the modified berries. Broccoli is the flower head while celery is the edible leaf.
