Bacteroid has a thick cell wall which is absent in a bacterial cell(its outer structure is made up of a cytoplasmic membrane).
Answer:
There are 7800 meters in 7.8 km
Sickel cell anemia is an inherited disease that is due to a base substitution mutation in a gene.
Well matter is basically any substance that has mass and takes up space. Example, you have a ball, or a table, or anything really. That is mass. But anything that doesn't take up space or has mass isn't matter. So, anything that doesn't have a mass or take up space is not matter. Hope this helped you understand. :D