Answer:
Active transport: movement against a gradient To move substances against a concentration or electrochemical gradient, a cell must use energy. Active transport mechanisms do just this, expending energy (often in the form of ATP) to maintain the proper concentrations of ions and molecules in living cells.
Periderm is the corky outer layer of a plant stem which the plant creates as a result of an injury or infection so as to protect itself further. Protoderm is the thin layer which covers embryos, as well as the root and stems, and later produces epidermis, which is the outer layer of tissue of plants (anywhere where periderm doesn't cover them).
Answer:
The haploid structure of the plant, during a stage in plant's life cycle, is known as the <u>gametophyte.</u>
Explanation:
The life cycle of plants includes a haploid generation and a diploid generation. Both the structures are multicellular.
The diploid structure of a plant is known as sporophyte. This structure produces spores via meiotic division.
Whereas, the haploid structure of the plant, known as the gametophyte, is formed from spore and produces haploid gametes.
Geothermal energy for heating. Solar power, or HydroElectric energy. The most efficient/Ideal one would HydroElectric energy. The reason why I say this is because HydroElectric energy does not pollute the environment, or produce harmful fumes. It also produces a lot of energy to power multiple homes.
