The nucleus is an organelle found ineukaryotic cells. Inside its fully enclosed nuclear membrane, it contains the majority of the cell's genetic material. This material is organized as DNA molecules, along with a variety of proteins, to form chromosomes.
Answer:
C
Explanation:
A rainforest is humid, therefore, water uptake would likely not be an issue. However, rainforests have a huge number of trees, often these are very tall. These large trees might block out the sun from the smaller plants nearer the ground. This means they would struggle to properly photosynthesise, as they wouldn't have the necessary light energy.
Therefore, as a survival adaptation, it is likely that an allele that produced broader leaves for photosynthesis would be selected for in this population. Broader leaves would give a larger surface area for the plant to absorb light energy to perform photosynthesis.
Answer: The third and fifth statements are true. Oxygen released from photosynthesis is breathed in by animals to break down glucose, and the carbon dioxide released by animals is used to build glucose in photosynthesis.
Explanation: Oxygen and glucose are the reactants for cellular respiration in animals. Oxygen is breathed in through the air, which is produced by plants. When the process of cellular respiration is complete, animals breathe out carbon dioxide as a product, which plants need to perform photosynthesis. Plants perform photosynthesis and send oxygen into the environment. The reactants of photosynthesis are the products of cellular respiration in animals, and vice versa, but the reactants and products are not the same.
