<span>The organ that is home to alveoli, broncioles, and bronchi which are moist with mucus and line with cilia are the lungs. The lungs are used to bring oxygen into the body and carry it to the heart which in turn pumps it throughout the entire human body to all the other organs.</span>
Answer:
The ability to allow needed materials to enter and wastes to exit as well as the ability to block unneeded materials from entering the cell.
Explanation:
<em>A selectively permeable cell membrane only allows some things to go through it, therefore this answer choice is the correct one because it is explaining how it is selectively permeable.</em>
<span>Answer:
outside cell:
[Na+] high
[glucose] low
transporter: glucose and Na+ go down
inside cell:
[Na+] low
[glucose] high
1. Na+ moves down its electrochemical gradient.
2. Glucose moves against its concentration gradient.</span>
Answer:
The TATA box is an alternating sequence of Adenine and Guanine nucleotides that transcription factors bind to. The TATA box is found just before a gene. The transcription factors tell the RNA polymerase where to bind to begin transcription. This ensures the RNA polymerase will know where to start and which gene to transcribe.
Explanation:
