How are ferns, gymnosperms, and angiosperms alike? They are all vascular plants. They depend on water for fertilization. They all produce seeds. Reproduction depends on birds, bees, and other animals.

The answer is going to be a because ik that i’m right

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There are four nitrogenous bases that make up dna. the two pyramidines are thymine and cytosine. the two purines are adenine and guanine. these bases pair in a very specific way. adenine - thymineguanine - cytosine i remember it like this: a tall, good cat.