1: It causes cells to change and specialize.
2: zygote -> stem cells -> cell differentiation.
3: meristim cells divide and some of the new cells differentiate into xylem and phloem.
4: Cell differentiation.
5: Other cells would differentiate.
Answer: C. Ranges and niches are moving farther North
Explanation:
Animals are moving north toward the North Pole to escape the heat. Towards the poles, the temperatures get colder. Because of global warming, the temperature zones move out towards the poles.
Answer:
Cortisol
Explanation:
The most important human glucocorticoid is the cortisol. It is also called hydrocortisone or stress hormone. It is produced in the zona fasciculata layer of the adrenal cortex of the adrenal glands. It controls blood sugar level between meals. It helps in maintaining blood pressure by controlling salt and water balance. It also control a response to stress by making more glucose from proteins and fats.
Answer:
A) Bacteria cannot carry out RNA splicing to remove introns and so produced a much larger protein.
Explanation:
Human is a eukaryote and has both introns and exons in its genes. Transcription of human genes forms a primary transcript that undergoes post-transcriptional modification.
One of the important even during the post-transcriptional modification is the removal of introns and joining the exons together to make a mature mRNA which in turn serves as the template for protein synthesis.
<em>E. coli</em> is a prokaryote and does not have the enzymatic machinery required for the splicing of introns.
Cloning of a complete human gene into the <em>E. coli</em> cells would not form the respective human protein since the bacterial cells would not be able to splice the introns from the primary transcript.
Answer:
Explanation:
The sound wave has a wavelength of 0.773m.
Explanation:
To solve this problem we have to use the wave equation that is given below:
