Questions: Plants can reproduce A) sexually and asexually. B) constantly. C) only by cutting or budding. D) only using pollination. Cells have receptors on their surfaces to sense their environment and to communicate with other cells. Viruses use

The answer to Question 5 is the first one (A): sexually and asexually.

Explanation for each option: A) Sexually and asexually - Correct. Plants can reproduce both sexually (through the fusion of gametes, such as in flowering plants) and asexually (through methods like budding, cutting, and vegetative propagation). B) Constantly - Incorrect. While some plants may have frequent reproductive cycles, not all plants reproduce constantly. C) Only by cutting or budding - Incorrect. These are methods of asexual reproduction, but plants can also reproduce sexually. D) Only using pollination - Incorrect. Pollination is a method of sexual reproduction, but plants can also reproduce asexually.

For Question 6: Cells have receptors on their surfaces to sense their environment and to communicate with other cells. Viruses use these receptors to attach to and enter host cells.