Answer:
Light is sn important element in the growth of a plant.
Explanation:
Light is an important factor influencing plant growth. It is a common observation that plants grow towards light. Charles Darwin and his son Francis Darwin first observed that the coleoptiles of canary grass responded to unilateral illumination by growing towards the light source (phototropism). After a series of experiments, it was concluded that the tip of coleoptile was the site of transmittable influence that caused the bending of the entire coleoptile due to more growth on the dark side. That transmittable influence is now thought to be the phytohormone called auxin.
END of the answer.
Dear learner I can further assist with your homework should need be and I am available on plus one six one nine five five eight two one four zero.
Answer:
in the Air sacs
Explanation:
the air sacs has a million tiny holes and that is probably where oxygen transfers
here is your ans.........
Answer:
....heart and lungs
Explanation:
The organs protected by the thoracic cage include the heart and lungs
The most important functions of the complement system are to alter microbial cell membranes and A. initiate an inflammatory response. The complement system is a part of the innate immune system, that is, the system is not adaptable and does not make alterations to the involved proteins over the life time of an individual. The complement system however enhances the functioning of the adaptive immune system by producing cytokines that overwhelm its response.
