There are _____ different kinds of plants.

260,000
300,000
20
500,000
23,000

300,000

Vascular

A)openings in the skin of a plant, used for gas exchange
B)the process by which water is given off from plants
C)a strong, central root
D)having to do with the tubes that form the circulatory system of plants
E)the tubes that carry water and minerals from the roots of a plant to its leaves

D)having to do with the tubes that form the circulatory system of plants.

To find out the correct number of different kinds of plants, we can consider the options provided and eliminate the incorrect ones.

First, let's consider the option "260,000". This seems like a reasonable number, as there are countless varieties of plants in the world. However, without further exploration, we can't be sure if this is the correct answer.

Next, let's consider the option "300,000". This is another plausible number, as the plant kingdom is incredibly diverse. However, we still don't have enough information to confirm if this is the correct answer.

Moving on, the option "20" seems too small to represent the number of plant species. We can easily identify far more than 20 different plants in our immediate surroundings. Therefore, we can confidently eliminate this option.

The last option is "500,000". While this may seem like a high number, it is not unreasonable given the vast variety of plant species found on Earth. However, we still need more information to determine whether this is the correct answer.

Finally, we have the option "23,000". While this is a relatively lower number compared to the others, it could still be a possibility depending on the context of the question. However, without additional information, it is difficult to determine if this is the correct answer.

In conclusion, based on the options provided, we cannot definitively determine the correct number of different kinds of plants. It is essential to consult reliable sources such as scientific studies or botanical references to obtain an accurate answer.