First Stage: Separation
Speciation usually begins when a part of a population becomes separated from the rest of their species.
Second Stage: Adaptation
Adaptation in speciation is quite similar, though the groups may evolve different sets of traits if the environmental conditions differ for each group.
Third Stage: Reproductive Isolation
Reproductive isolation is when groups of a same species are reunited and cannot interbreed with each other anymore, so they are now identified as different species.
Answer: electromagnetic (light) energy and thermal energy
Explanation:
The citrus fruits are a good source of vitamin C.
The dark green leafy vegetables also have many important vitamins and minerals. They are an abundant source of vitamin C, A, K as well as (folate vitamin B9). Other than these, they also provide iron and calcium. The dark green leafy vegetables are also a great source of fibres. But, they are not very good source of ZINC or selenium.
hence, the correct answer is option A. Vitamin
An organism that supplies matter and energy, also known as a autotroph, is called plant I guess
The correct choice is increases your heart rate and respiration.
Your sympathetic nervous system increases your heart rate and respiration when confronted with a stressful event.
sympathetic nervous system also mobilizes body for action, increases breathing and sweating, makes pupils dilated ad lastly decreases stomach's activity.
