Answer:
Charles Darwin
Explanation:
In Galapagos Islands, Darwin observed that animals from different parts were clearly similar but had very different features (such as beak type in finches). He imagined that all of these finches belonged to the same original species but had adapted to better fit their environment in different islands.
Answer: 5). where and when a disease occurs, and how it is transmitted.
Explanation: Epidemiology is a branch of medicine and the cornerstone of public health that studies the distribution and control of a disease. Epidemiology involves the study of who is affected by a disease, where is affected (the geographical location), when it is affected (time) and the used of these studies in the control of diseases and other health problems.
With sexual reproduction a sperm coming from the male must unite with the female egg. Both are needed for this kind of reproduction, and an offspring CAN'T be formed without both. Unlike asexual reproduction, the offspring of a mammal reproducing sexually is DIFFERENT from both parents, since the offspring is a combination of both the mother and the father.
An easy to remember example I use when thinking about what sexual reproduction is:
the formation of a human child. A mother with her egg and the father with the sperm is BOTH needed. If you think about siblings that come from the same parents (and therefore same gene pool) they are not all exactly identical to each other. Although they may have similar features, they look different and are NOT genetically identical
Therefor for your question the answer is D.
Hope this helped!
