Answer:
In plants that undergo double fertilization, the structure that forms to nourish the seed is called the <u><em>endosperm</em></u>.
Explanation:
The process of double fertilization can be described as a phenomenon in which one of the sperm cells fertilizes the egg cell whereas another sperm cell joins with the two polar nuclei of the ovule
The sperm cell and the egg cell will unite and form the zygote.
<u><em>On the other hand, the sperm which fuses with the two polar nuclei will form the endosperm.</em></u>
<u><em>The endosperm can be described as a nourishing tissue which provides the embryo with nutrients so that it can develop and mature. </em></u>
<u><em></em></u>
<span>advancing mass of warm air, in particular, the leading edge of the warm sector of a low-pressure system.</span>
The purpose of ethical guidelines for handling of experimental subjects is to ensure the safety and well-being of all living creatures in an experiment.
Ethical guidelines include issues such as human rights, animal welfare, safety compliance with the law, conflicts of interest, health standards..
Ethical guidelines are the norms for the acceptable and unacceptable behaviors of the researchers.
D, because if you burn fossil fuel the smoke while burning the fossil fuel is carbon dioxide and we live off fossil fuel and that means we use a lot of fossil fuel.