Cats can bite you if they're playing or just want alone time to them selfs. Plus if they think you are going to do harm to them.
Hope this helps! :D
Answer:
Each layer has a different temperature range and contains different mixtures of gases and moisture. Human activities on Earth's surface can create changes in the atmosphere. Pollution, acid rain, and holes in the ozone disrupt how the atmosphere normally functions.
There are 11 organelles in total,
vacuoles: they store water
Chloroplasts: trap energy from the sun to produce food for plant cell
Cell wall: provides support and protection to the cell membrane,
Cell membrane: thin flexible barrier around a cell, controls what enters/ leaves the cell
Nucleus: 'The control center', carries the DNA of the cell
Ribosomes: Found in all cells, their jobs are to make protein
Endoplasmic Reticulum: The internal delivery system of the cell
Golgi complex: Transports materials throughout the cell
Lysosomes: Break down food into particles the cell can use. another function is they destroy old or dying cells
Mitochondria: Breaks down food to make ATP
and last but not least cytoplasm a jelly like fluid in the cell that keeps the organelles suspended
If a burning splint is placed in a container and burns more brightly in the presence of some gas already in the cylinder, that gas would probably be Oxygen.
Oxygen is the main component of air that we need to breathe. It is the most commonly available oxidizer. Besides combustion, it plays many roles in our life such as; the food we eat requires oxygen which helps in digestion and absorption of nutrients by the cells.