Answer:
Double fertilization involves two sperm cells; one fertilizes the egg cell to form the zygote, while the other fuses with the two polar nuclei that form the endosperm. After fertilization, the fertilized ovule forms the seed while the tissues of the ovary become the fruit.
Answer:
Following are the responses to the given question:
Explanation:
Increased 
gases in the water may hasten photosynthesis, enabling crops to develop and grow more quickly. Some is absorbed and more oxygen is expelled as the frequency of rate of photosynthesis.
The higher plants grown means greater water filtration. Natural selection will run its course if the water is less polluted, as well as the fish may not need to pass mostly on full-body plate characteristics to their descendants.
According to the activation-synthesis theory of dreaming, the source of a dream is neuronal firing in the lower brain stem. It is also known as the medulla oblongata or just medulla. It is essential in processes like blood pressure and heart rate. Also, it is responsible in a number of reflexes in the body or the involuntary actions like coughing, sneezing and vomiting. It is said to contain cells that would turn REM on and off. From recent research, it is the part of the brain that is the origin of the electrical impulses where dreams are results. It is connected to other parts of the brain which controls memory, movement, hearing and vision.
Answer:
They have increased the amount of certain organisms (a lot of crops and such) and made the soil healthier. Also, other organisms that may feed on this are having more food.
Explanation:
