Helper T cells are very important cells in the adaptive immunity. They are required for almost all adaptive immune responses and They also help activate cytotoxic T cells and macrophages to attack infected cells.
I hope this helped, Good Luck!!
Answer:
Click on the picture to get full view. I wrote about chemical properties also so you can compare and contrast and it can help show the physical properties more :)
Diploid cells contain 2 sets of the same DNA where as haploid contains one set.....so our normal cells in our body (somatic cells) are diploid however our sex cells(gametic cells) which are the egg of a woman and sperm from a guy are only haploid which means they have only 1 copy of DNA......this is because they fuse with one another and add their DNA together to make a diploid cell
Answer:
spider with second option (spiders have an open circulatory system.)
earthworm with first option
starfish with forth option
Explanation:
Nutrition is what help us grow and repair, nutrition has nutrients like water, minerals, and vitamins.
