Over a million students use our free study notes to help them with their homework
Mitochondria are organelles which provide the energy used up by the cell in respiration, through producing molecules called A...
Let us first understand what is meant by the term "phenotypic variation". Simply, the phenotype of an organism is its observable characteristics - like how it looks, how it behaves, and so on. D...
When oxygen reaches the alveoli of the lunngs, it diffuses into the blood. The oxygen enters the red blood cells and combines with the haemoglobin to form oxyhaemoglobin. When the red blood cells reach...
- Following transcription, the mRNA (messenger RNA) leaves the nucleus via the nuclear pores and enters the cytoplasm. It then attaches to a ribo...
Our skin is responsible for ensuring that, when our surroundings get too hot, our body temperature doesn't spike up to unhealthy levels. Likewise, when our surroundings get too cold, our skin plays a r...
←
843
844
845
846
847
→
Internet Safety
Payment Security
Cyber
Essentials
