Answer:
cells are so small because it is structural functional unit of an organism which can be only seen through microscope
Answer:
Antidiuretic hormone
Explanation:
Antidiuretic hormone that is synthesized and produced in the brain by the hypothalamus, is secreted from the pituitary gland, where it is stored. This hormone is released into the blood stream in response to changes in the water balance in the blood. This hormone helps the kidneys to control and regulate the amount of water in the blood
Answer:mutualism
Explanation:
In a mutualistic relation,both organisms involved benefit from the activities of each other. The benefits may be nourishment,shelter, protection etc.
In the above example,the birds are known to guide humans by responding to specific calls made by the human. They guide humans to beehives and then in return gets to feed on left over honey. Both the bird and human benefits by getting nourishment.
Mutualism is unlike parasitism where one of the organism involved benefits and the other organisms Is most likely harmed. It is also not commensalism, where one organism benefits and the other neither benefits nor is harmed
In this question, there are no options given to choose from. So i would answer this question based on my knowledge. The most likely cause of the observed variation is adaptation and evolution. The birds of that island adapted to the food source and then they evolved as per the requirement of the place and food source.
