Explanation:
In a freshwater aquatic ecosystem like a pond, the organisms in the food chain include algae, small animals, insects and their larvae, small fish, big fish and a fish-eating bird or animal
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Because plants go through a cycle(the cycle is seed, seedling, plant, flower and tree.) and it takes time for the plant food, water, and nutrients to go though the plant.
Answer:
C - Mutations are the only source of genetic variation for asexual reproduction
That would be A. Produces reproductive organs which produce a zygote.
Zygotes grow into the sporophyte(diploid), spores grow into the gametophyte(haploid).
Sporophyte produces haploid spores through meiosis, gametophyte produces gametes through mitosis.
<span>The visceral mass, of gastropods is always contained within the shell; it generally holds the bulk of the digestive, reproductive, excretory, and respiratory systems. A significant part of the visceral hump consists of the mantle, or pallial, cavity.</span>