Octoploid means having 8 haploid cells of chromosomes.
The two membranes pull apart a little and create a small pocket or sack of air. As the developing bird grows, it breathes in oxygen from the air sack and exhales carbon dioxide. Several thousand microscopic pores all over the surface of the egg allow the CO2 to escape and fresh air to get in.
Please mark brainliest :)
Answer:D SEED TREE CUTTING
Explanation:
The answer is seed- tree cutting. Edge2020
Most of the volume of the atom is empty space, throughout which tiny, negatively charged electrons are dispersed.
The nucleus is the center of the atom, around this the electrons move on different energy levels but, in the middle of that, there's only empty spaced.
The answer is B.<span>Precipitation.it is raining</span>