Explanation:
Homologous chromosomes are 2 physically different chromosomes that have the same genes but are not genetically identical. Sister chromatids are 2 copies of a single chromosome and so are genetically identical (they also are physically attached to one another).
The answer is the span of time from Earth's formation to the start of the Cambrian period. It is the period of time that extends from about 4.6 billion years ago; a point when the earth formation began, to the beginning of the Cambrian period, 541 million years ago. It represents more than 805 of the geologic record.
Mutation caused by such base substitution is called as a nonsense mutation.
Answer:
B
Explanation:
Inside of your lungs, there are little pathways through which air flows, called bronchioles. Those bronchioles feed into tiny air sacs called alveoli, which fill with air when you breathe in and empty when you breathe out. Hope this helps!
Answer:
A. Cells, tissues, organs, organ systems, organisms