Note: Question lack information. I have added full question with answer and explanation in info-graph.
Answer:
The cycle of human heart start with end of one beat to beginning of next beat is called cardiac cycle.
Answer: Option A) mutations are more likely to be purged.
Explanation:
Sexual reproduction involves the production of gametes from two parents, which then fuse into zygote.
- During the formation of gametes, mutation do occur.
- After the formation mutations can also of occur. if they do occur, they are called germ-line mutation.
Thus, sexual reproduction does not in anyway purge mutation
Explanation:
Plants do not need respiratory system because roots , stems, leaves of plants exchange gases for respiration separately. ... They don't have lungs to breathe so they don't need a respiratory system. They have stomata.
<span>the value of a transitional fossil is : A. Transitional forms show the evolutionary steps between species
For example, take a look at human's transitional fossil.
Through the fossil, we became aware about the evolution that happened within the human species and we can observe how we developed from a monkey-like organisms into a more superior organism as we are today</span>
You can also find photosynthesis, the carbon cycle, the water cycle and others
