How do some nucleotide sequences in DNA get copied into RNA when DNA and RNA have different bases. For example, how is the sequence TGAC in DNA copied to the RNA when RNA does not has Thymine.

Amale bird-of-paradise uses a dance to attract mates in which it flaps its tail feathers on the ground and jumps around a potential female mate. a different male bird-of-paradise does a similar dance but it jumps around the female in the opposite direction. the female bird is only attracted to one style of dance, in one direction. this is an example of speciation.

Jasmine, at 33 months of age, is able to engage in some self-care behaviors but still has trouble with tasks such as putting on socks. a few months later, she accomplishes this same task relatively easily. the change in abilities is most likely due to

Explain the source of radioactivity in uranium in earth’s crust by which it produces nuclear radiation