Explain how the composition and distribution of codons among living organisms provide evidence for evolution from a common ancestor
What will be an ideal response?
With a few exceptions, the same codons are used for the same amino acids in viruses and all living organisms, including bacteria, algae, fungi, and multicellular plants and animals. The nearly universal nature of the genetic code means that the code was established early in the evolution of life on this planet and provides strong evidence that all living things evolved from a common ancestor.
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Explain the processes of phloem loading and unloading in a flowering plant
What will be an ideal response?
In regions of the human body that must precisely control what enters or exits tissues, which one of the following is(are) present to ensure adjacent cells are packed close together?
A) basement membrane B) adhesion junctions C) collagen D) tight junctions E) gap junctions
From this age structure diagram for India, it is likely that India’s population will ____
a. crash b. have a larger proportion of older individuals c. remain stable d. decrease e. increase
The full set of an individual organism's DNA is called its:
a) chromosome. b) nucleotide. c) complement. d) nucleosome. e) genome.