Question

this image also shows canadian waterweed. the image is a micrograph, which is a magnified picture taken with the aid of a microscope. the magnified image shows a section of a canadian waterweed leaf that is only 0.25 millimeters long! the micrograph shows that the plant is made up of small, similarly shaped units. in this image, each unit looks rectangular and is surrounded by a white border. these units are called cells. which of the following statements are true? select all that apply. canadian waterweed plants are mad of tiny units called cells. each canadian waterweed cell is big enough to see without the help of a microscope. the organism shown in the micrograph is made up of cells, but the organism in the photograph is not. each canadian waterweed cell is less than 0.25 millimeters long.

Explanation:

• First statement:
• The text clearly states “The micrograph shows that the plant is made up of small, similarly shaped units... These units are called cells”. So, Canadian waterweed plants are made of tiny units called cells.
• Second statement:
• Since the image is a micrograph (a magnified picture taken with the aid of a microscope) to show the cells, it implies that the cells are too small to see without a microscope. So, this statement is false.
• Third statement:
• All plants (including Canadian waterweed) are made of cells. The photograph and the micrograph just show different views (one is a general view, the other is a magnified cellular - level view) of the same plant. So, this statement is false.
• Fourth statement:
• The text says “the magnified image shows a section of a Canadian waterweed leaf that is only 0.25 millimeters long”. A leaf section (which contains multiple cells) is 0.25 mm long. So, each cell is less than 0.25 millimeters long.

Answer:

Canadian waterweed plants are made of tiny units called cells; Each Canadian waterweed cell is less than 0.25 millimeters long.