Question

select the one true statement. plant cells can have cell walls but do not have chloroplasts. the nucleus directs an animal cells activities by sending instructions to different parts of the cell. an animal cell has both a cell wall and chloroplasts.

Explanation:

• Plant cells have cell walls and usually have chloroplasts (for photosynthesis). So the statement "Plant cells can have cell walls but do not have chloroplasts" is false.
• Animal cells do not have cell walls or chloroplasts. So the statement "An animal cell has both a cell wall and chloroplasts" is false.
• The nucleus is the control center of the cell. It contains genetic material (DNA) which has the instructions for the cell's activities. It sends signals (in the form of mRNA etc.) to different parts of the cell (like ribosomes for protein synthesis) to direct its functions. So the statement "The nucleus directs an animal cell's activities by sending instructions to different parts of the cell" is true.

Answer:

The nucleus directs an animal cell's activities by sending instructions to different parts of the cell.