Answer:
yes
Explanation:
Compounds: are pure substances that are made up of more than l type of atom and can be broken down or decomposed into its individual elements by chemical methods, but cannot be separated by physical methods. The ratio of the elements in a compound are always constant. (Water is always 11 % Hydrogen and 89 % oxygen).
Answer:
Explanation:Unlike bacteria, viruses can't survive without a host. They can only reproduce by attaching themselves to cells. In most cases, they reprogram the cells to make new viruses until the cells burst and die. In other cases, they turn normal cells into malignant or cancerous cells.
Answer:
e
Explanation:
The correct answer would be that they <u>are more numerous than primary consumers.</u>
Secondary consumers are never more numerous than primary consumers. <em>This is primarily due to the fact that the higher we move up the food chain, the less efficient the amount of energy derived from food. Up to 90% of energy is sometimes lost at each trophic level as we up. Due to this inefficiency, the available food at top consumer levels can only support a few organisms. Hence, the higher we move up the food chain, the lesser the number of organisms the available food can support.</em>
The correct option is e.
The energy in food substances is released in chemical reactions that take place within the mitochondria which are present in some single celled organisms.
