Answer:
The correct answer is - newspaper articles and farmers' harvest yield records.
Explanation:
Paleoclimatologists are the people that study the ancient climate before the availability of the instrumental records or the data and therefore depend on the coral reefs or the rocks and also compare the current climate how dramatically different climate states occur in few decades.
Dina should examine newspaper articles to find out what type of climate was before and now in her hometown and she should also check records of farmer's harvest yield to get what type of weather and climate was there.
Given what we know about darwins theory of evolution, we can say that the similarities and differences between species help to prove how completely unrelated species can evolve similar traits based on necessity.
<h3>How do these similarities help to prove Darwin's theory?</h3>
- They provide evidence of entirely different species developing similar traits.
- These traits develop based on the <u>needs </u>of each organism and its <u>environment</u>.
- The difference in the species also helps to prove that the development of traits is not entirely genetic in origin, further supporting the theory of evolution.
Therefore, we can confirm that since the similarities of completely unrelated species can serve to show that organisms evolve to adapt to similar environments, we can use these as evidence to support Darwin's theory of evolution.
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Answer:
Estrus Synchronization
Explanation:
This is the procedure of manipulating the reproductive hormones of the female animals so that, the heat period occurs at relatively the same time that is convenient and preferred by the producer. This is for timed ovulation needed for techniques of artificial insemination for artificial selection. Thus the producer is able to plan his insemination programme to suite his work engagements.
The common hormones for this procedure are; Prostaglandins F2α :<u>(which suppresses the oestrous cycle, to end, and restart the entire cycle and ovualtion again to suit the producer</u>). Progestins: (<u>which inhibit heat and ovulation until it is removed by the producer</u>) and also induces oestrous cycle in a non oestrous animals,and Gonadotropin Releasing Hormone.( for inducing oestrous cycle in non oestrous animals, and for stimulating eggs production when needed.
Its advantages includes
uniformity in kids rearing,
uniformity in slaughtering period,
availability of milk round the clock,
control of transmission of infectious diseases.