Answer
C. They are source of new genetic variation
Explanation
Mutation result in genetic changes allowing species to develop new traits because the DNA changes thus affecting how the living organism will behave, look and adjust to physiology processes. Through mutation, evolution has been achieved because living things can survive as they fit into new environment with new traits acquired through mutation.
The main function of cladodes is : Photosynthesis
Cladodes are a type of modified stems that has a flattened form like leaf. The function is actually also to replace the leaves in photosynthesis process. Hope this helps
Answer:
A) Natural selection caused the pigweed to mutate, creating a new triazine-resistant species.
Explanation:
Due to constant use of triazine, the weed will build resistance to it over time unlocking the herbicides codes and making it ineffective.
Natural selection will play out allowing this weeds to bring about a sudden change in their genome that will become resistance, this resistance breed is what will then be produced over time because mutation is heritable and the herbicide then becomes ineffective and the weed continues to multiply and increase in volume.
B chloroplasts, cell wall since the animals don't have or need them.
The answer is reproductive isolation. This ensures that there is no viable reproduction between
different species or subspecies. Even if reproduction
between species leads to conception, the embryo may not be able to survive to maturity or will be sterile. This ensures that
species remain integral by restricting gene flow.
