An orange roughy fish is a fourth-level consumer that requires almost ten times the amount of food available from the primary producers in the ecosystem. Why isn't more energy available from the primary producers?A. Primary producers are not very efficient and lose most of their energy to the environment.
B. There is too much competition from other fourth-level consumers, leaving very little available to the orange roughy.
C. Only a fraction of energy is passed through each level, so there is less available to upper-level consumers.
D. The energy flow is unbalanced and tends to move toward the lower levels.

Answer:

Russian hamsters, (and hamsters in general) are very complicated animals despite what other people say. A lot of people think that hamsters are good beginner pets for kids, but they really are not. Hamsters require a lot of square footage, specifically 300 ft.² for your type of hamster. And they require lots of enrichment. If you have not done research, I would recommend researching on how hamsters can thrive before you get one. I would also recommend the creator Victoria Reachel on YT, because she is a hamster expert, and her videos have a lot of useful information in them. Such as, what do you feed a hamster, how to give a hamster enrichment, and which things are bad for hamsters. I wish you the best of luck on your hamster journey!

Explanation:

Final answer:

Russian dwarf hamsters should be kept in an environment with ample space, proper diet, and regular interaction. Their cage requires adequate bedding and toys. Temperature should be moderate and constant.

Explanation:

Russian dwarf hamsters should be kept in an adequate-sized cage, which offers space for them to move and play. The cage should include hamster-safe toys and have plenty of bedding for burrowing. It's essential to maintain a moderate temperature, as extreme heat or cold can be harmful.

Their diet should consist of fruits, vegetables, and commercial hamster food. Fresh water should always be available. It's also important to handle them carefully and regularly to keep them sociable and comfortable with human contact.

Learn more about Russian dwarf hamsters here:

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The correct answer is organismal theory.

Simply put, this theory states that the original cell expanded into a whole organism, and that the original cell is equivalent to the whole organism and that the protoplasm is just subdivided  and partitioned off by cell walls which are really not complete partitions because the protoplasm of neighboring cells are joined together by plasmodesmata. 

This is opposed to the cell theory that states a cell divides into many cells with the original cell being identical to the daughter  cells.

The correct answer is organismal theory.