<span>The proteins that are embedded in the cell membrane act as channels to transport substances in and out of the cell.</span>
Tobias drank from a contaminated water fountain
Usually, only mammals undergo Carnegie stages.
Therefore, 'B. Sheep' would be the correct answer.
The right answer is A.Transcription uses uracil.
The genes carried by the DNA will be encoded in another form: messenger RNA, during a process called "transcription".
The DNA and RNA molecules are chemically very close, but the second has an extra oxygen (in red on the right of the letters) on the sugars (riboses) that make up its nucleotides (the DNA actually contains deoxyribose). In addition, the thymine (T) of DNA is replaced by uracil (U) in RNA.
Less triiodothyronine (T3) and thyroxine (T4) hormones are made. ... The follicle cells of the thyroid gland produce thyroid hormones while the parafollicular cells produce parathyroid hormone (PTH)