its a little too confusing for me
4) Larva
Coral reproduce both sexually and asexually. The offspring produces sexually may be referred to as larvae and are the juvenile form of coral.
A phenomenon, in the scientific context, is an observable event that can range from a seasonal hazard to a technological issue. For a scientist, a phenomenon is an observable event.
Answer:
haemoglobin
Explanation:
Inside the air sacs, oxygen moves across paper-thin walls to tiny blood vessels called capillaries and into your blood. A protein called haemoglobin in the red blood cells then carries the oxygen around your body