The use of technology such as Doppler radar is possible due to what type of electromagnetic waves? I NEED HELP ASAP

According to the cladogram, which organisms have roundworms as a common ancestor?

How do you know that the plant cells in these two images have different jobs, or functions? a. because all plant cells serve different functions b. because they are two different colors c. because their dna are different d. because their structures are different

Which of the following graphs have the same wavelengths