Birds, just like humans, have a four-chambered heart.
Answer: Animals
Explanation: Animal cells are eukaryotic but so are plants. However, only an animal can fly to get its food. Plants get their food by the sun or by themselves.
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It occurred during meiosis.
just took the test, hope this helps:)
Answer:
Notice that many amino acids are represented in the table by more than one codon. For instance, there are six different ways to "write" leucine in the language of mRNA (see if you can find all six).An important point about the genetic code is that it's universal. That is, with minor exceptions, virtually all species (from bacteria to you!) use the genetic code shown above for protein synthesis.
Explanation:
