Answer:
While humans, as well as other vertebrates, have a closed blood circulatory system (meaning that the blood never leaves the network of arteries, veins and capillaries), some invertebrate groups have an open circulatory system containing a heart but limited blood vessels.
Explanation:
1. The mitochondria provides energy for the cell, (sometimes called the powerhouse of the cell).
2. The nucleus stores DNA and directs the cell.
3. Ribosomes make proteins.
4. The Golgi Apparatus sorts the proteins and ships them to other parts of the cell.
Answer:
an increase in sucrose in food would increase the sucrose concentration inside the body thus increasing sucrase activity until it reaches its saturation point (approx 30g/l) if im correct
Answer:
The complement system, also known as complement cascade, is a part of the immune system that enhances (complements) the ability of antibodies and phagocytic cells to clear microbes and damaged cells from an organism, promote inflammation, and attack the pathogen's cell membrane during phagocytosis
