No problem so Chain 1. Sun -> Tomato plant -> Tomato -> You The sun provides energy to the tomato plant which is used to grow a tomato which is eaten by you. Chain 2. Sun -> Wheat -> Flour -> Bun -> You The wheat uses the sun's energy to grow when the wheat is mature it is used to produce flour which is used to bake the buns for the hamburger which is then eaten by you again. Chain 3. Sun -> Lettuce -> You The lettuce grows and uses the sun's energy to live it is then eaten by you in the hamburger. Hope this helps :).
Any mutations in DNA are forever, since DNA is the master blueprint. All mutations will be passed onto new cells through DNA replication, and all RNA made from that DNA will also have the mutation. If the mutation occurs in sperm or egg cells, those mutations will also be passed on to the organism's offspring.
These base pair relationships are often called Chargaff's rules of DNA base pairing, named after the Columbia University scientists who observed that there are equal molar concentration of A & T, as well as G & C in most DNA molecules.
Because the vaccine is an antigen from living, weakened or killed microorganisms that activate the immune system and the body produces protective antibodies.
D. Sexual reproduction produces offspring that have a greater genetic variety and durable zygotes that can help green algae species survive unfavourable conditions.
