Answer:
21
Explanation:
there are supposed to be 2 chromosomes, not 3. This person has down syndrome.
No. However, energy is required for facilitated diffusion. Also without the membrane, the cell would collapse and wouldn't be able to function.
Answer:
Gypsum and limestone.
Explanation:
Mining of valuable stones such as gypsum and limestone occur in my location. These valuable stones are used in the formation of beautiful tiles and in painting materials. Due to extraction of these valuable stones, erosion of the land occur as well as air pollution increases by the use of machines for extracting these minerals so it caused adverse affect on the environment so this mining has to be limited in order to both save the environment and get benefits from these minerals
Domain. Eukaryota.
Kingdom. Animalia.
Phylum. Chordata.
Class. Mammalia.
Order. Primates.
Family. Homindae.
Genus. Homo.
Species. Sapiens.
