Hello!
Ions are charged particles, that explains why they have either a positive or negative charge. Since electrical signals contain charges, that also explains why they are often based on ions. Your answer would be D!
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- TetraFish
Muscles are the tissue structures that move bones. They are connected to bones and need proteins to grow and stay healthy.
The red algae was the plant group that includes the Ancestors of plants.
The right answer is A.
Meiosis is an important process in many organisms:
In angiosperms, plants with flowers, meiosis occurs for the production of cells of pollen grains (gametes, haploid cells).
In animals, meiosis is important because it is the mechanism of gametogenesis that produces eggs (oogenesis) and sperm (spermatogenesis).
In the fungi, meiosis produces spores, which by mitosis will give a haploid generation.
