Explain how the ecosystem that you selected follows the law of conservation of mass and the law of conservation of energy. it is said that only about 10% of stored energy is transferred between trophic levels of the ecosystem. be specific in using your ecosystem in your example.

(my ecosystem is a desert.)

The following image is of a diatom. it lives in water and gets food from photosynthesis. it is encased in a hard shell made of something similar to glass or sand . a diatom is a(n) because it has a) multi-celled organism; specialized parts. b) vertebrate; a skeleton. c) insect; an exoskeleton. d) single-called organism; only one cell.

Sampling lake water for microscopic organisms is not as easy as it sounds when you want to both count and identify species. in a given water sample, your bacteria of choice can be rare or difficult to culture, particularly given the mixture of bacteria in a biofilm. which of the following culture media would be best for growing fecal coliforms when they are relatively less abundant than other bacteria in the lake? anaerobic culture medium enrichment culture medium complex culture medium basic culture medium

In the respiration-photosynthesis cycle shown above, what are the products of cellular respiration that belong in box 2?