Carbon is the answer. Interestingly your question sounded like a riddle!!!
Answer:
A
Explanation:
They are the foundation of the aquatic food web, they get eaten by zooplankton and then they get eaten by fish and whales.
Are there 2 answers to this question because I see 2 that are true. It must constantly increase entropy because that is a property of our universe and the second answer would be to constantly use energy, for maintaining living systems
Answer:
Bones provide calcium that is essential for the proper functioning of the nervous system. The skull protects the brain from injury. The vertebrae protect the spinal cord from injury. Sensory receptors in joints between bones send signals about body position to the brain.
Explanation:
thanks me later
The surface of a leaf has many tiny pores, called stomata. The stomata allow carbon dioxide into the leaf so that photosynthesis can occur. They also allow water to leave the leaf by transpiration. Plants that grow in full sunlight usually have most of their stomata on the shaded undersides of their leaves.