Answer:
Taking shorter showers
Don't leave appliances running if you're not using them
Turn off lights after leaving a room
Eating less meat
Using renewable energy/ resources
Driving less
Answer:
Sometimes, there can be random fluctuations in the numbers of alleles in a population. These changes in relative allele frequency, called genetic drift, can either increase or decrease by chance over time. ... Genetic drift can result in the loss of rare alleles, and can decrease the size of the gene pool.
In humans, oxygen is delivered to the cells of the body by the circulatory system.
Hope this helps !
Photon
What do you need help with? I would recommend creating organized notes and studying every night. If you have someone to help you, have them quiz you. It’s helps a lot and got my grades up. Have a great night!