Answer: The answer is blood
Explanation:
The blood is the 'fuel' of the circulatory system in that it carries nutrients ranging from
- gases like oxygen by the help of its respiratory pigment, hemoglobin
- rich food substances like glucose, amino acids to various cells of the body
- antibodies and hormones that provide defence against invaders
Thus, the blood is the nutritive fluid of the circulatory system
The cell membrane has selective permeability and chooses which to pass through. Non polar molecules can pass easily with diffusion, but ions cannot.
Answer:
Complex brain.
Explanation:
The cranial capacity of Homo sapiens are responsible for their successful adaptation on earth. They have the cranial capacity of around 1400cc.
The major environmental conditions has changed but the complex human brain has helped him to sustain and understanding the nature. Humans are successful to sustain on this earth due to their complex brain.
Plant cells have a few additional structures : chloroplasts and vacuoles
animal cells do not have these structures
Answer:
There are 32 number of chromosome in egg cells of female horse while 31 number of chromosome in sperm of male donkey so the offspring produce from this fusion is mule having 63 number of chromosome.
Explanation:
Sperm and egg cells are the type of sex cells that contain half number of chromosome. Total number of chromosomes in horse is 64 and its half is 32 while total number of chromosome in donkey is 62 and its half is 31. So the mule have 63 number of chromosome.
