Answer: <u>B. They signal phagocytes
</u>
Explanation: Complement proteins are a part of immune system of the body. These are plasma proteins which help in the process of marking and killing the pathogens. These are not involved in the fever causing mechanism, so option D is incorrect. Also, these are not carrier proteins, and are not associated with hormones, thus option C is also incorrect. Since these proteins bind with the pathogens and make them easily recognized by the phagocytes, option B is the right answer.
Answer:
The correct answer or fill in would be- but <u>Change and evolve</u> over time.
Explanation:
The perfect cosmological principle is a extended version of the cosmological principle. The perfect cosmological principle says that the universe is look same from all directions but can be change and evolve with time.
Steady state theory supports this theory as it also says that universe is expanding but also maintain its density even though it continuously creates stars and galaxies but still look same.
Thus, the correct answer is - but <u>Change and evolve</u> over time.
Answer:
pure research or fundamental research which is a type of reach with the idea of improving scientific theories. :)
A part of the body that doesn’t contain melanin is the nails
Answer: Competent cells are able to take up naked DNA, they occur naturally and can be created in the laboratory
Explanation: Competent cells are cells that can modify its genetic make up and take other DNA using transfomation. Competent cells are commonky made from e.coli because it can replicate faster, readily available for use. DNA is cleavedusing restriction enzymes making up sticky ends.
