b
Explanation:
Cause a process happens molecules and the membranes
Fires disrupt the equilibrium of an ecosystem. The results of a fire include a resetting of plant succession. Many ecosystems have adapted to a certain frequency and intensity of wildfires, and many plant species actually require fires as part of their life cycles. Fires can open up forests and grasslands that would be too congested and shaded to allow young grasses or trees to take root. Fires in fact act as a stimulus for some seeds to germinate. These would typically be pioneer plants that are able to grow in fairly harsh and varied conditions. Fires also remove accumulated dead tree matter that can accumulate in a forest, and if wildfires are too infrequent, fires and be very intense when they do happen as they are fed by the accumulated material.
Hand held visual distress signal flares is part of a vessel's safety equipment. It is used to summon help during danger and it should only be displayed when immediate or potential danger exist. It is very effective when party that can possibly help are reasonably nearby.
Once the DNA of a person has been copied it can be compared to the DNA of other people by using PCR (Polymerase Chain Reaction).
Answer:
Chloroplast is like an electrical system - it takes energy from the sun and uses it to power the cell just like how an electrical system uses electricity to power the appliances in a house.
