Answer: swimming of male gametes to female gametes
Explanation:
Pollination is the process by which pollen reaches the stigma of a flower.
This transport of pollen takes place from the <u>stamens (male floral organs)</u> of one flower to the <u>stigmas (female floral organs)</u> of another flower, where germination and fertilization then take place, making it possible to produce seeds and fruits.
The analogous process in animals is the swimming of male gametes to female gametes. The male gametes, which are sperm, travel from the male genitals through the female genital tract to try to reach the egg and thus fertilize it.
Answer:
Explanation: There are a number of structures which are found mostly in leaves than in roots, some of which are:
The large central vacuole is surrounded by its own membrane and contains water and dissolved substances. Its primary role is to maintain pressure against the inside of the cell wall, giving the cell shape and helping to support the plant.
The cell wall is located outside the cell membrane. It consists mainly of cellulose and may also contain lignin , which makes it more rigid. The cell wall shapes, supports, and protects the cell. It prevents the cell from absorbing too much water and bursting. It also keeps large, damaging molecules out of the cell.
Plastids are membrane-bound organelles with their own DNA. Examples are chloroplasts and chromoplasts. Chloroplasts contain the green pigment chlorophyll and carry out photosynthesis. Chromoplasts make and store other pigments. They give flower petals their bright colors.
Answer:
The statistics given has shown that night-migrating birds are driven by autonomous circadian clocks which is made possible by sunset cues. This timekeeping that is the autonomous circadian clocks system is probably the key factor in the overall control of nocturnal songbird migration.
Answer:
Throughout the summer, wind and waves cause the warming water in the epilimnion to mix deeper and deeper, slowly incorporating hypolimnetic water through the metalimnion. The ability of a lake to mix through wind turbulence is determined by the “stability” of thermal stratification.
Explanation:
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