When we breathe, our respiratory system takes up oxygen and carbon dioxide or other useless gases go out . The oxygen combines with the haemoglobin in the blood of the circulatory system . This is transferred to all the cells of our body to get energy.
Answer:
1. Asexual Reproduction (If there is only one organism reproducing)
2. Selective Breeding
Explanation:
1. If there is only one parent organism that means the offspring it is a carbon copy of its parent.
2. Selective breeding is breeding to bring out more desirable traits out of the species, like how dog breeders breed for better sense of smell or hearing.
Answer:
Aa
Explanation:
The dominant gene is purple and usually represented with the capital letter while the recessive gene is white
Answer: False
Explanation:
The urethra is a tube which runs from the bladder to the end of the penis. It functions by carrying the urine and semen outside the male body.
Urethra is made of two components. Prostatic urethera is the part that runs from the bladder through the prostrate.
The penis is only organ which carries both the fluids out of the body.