Natural Selection Theory: The Natural Selection Theory is given by Charles Darwin. There are 3 principles of Natural Selection Theory
Variation, Heredity, Selection.
Explanation:
Natural Selection is the cause of evolution. The adaptation to the environment is the key to survival according to Charles Darwin.
The story behind Natural Selection is his visit to Galapagos Islands in 1835. Here he noticed the finches of different varieties in their beaks and food sources adapted to different environments i.e from different islands. This pushed him to think about those adaptations and eventually theory of natural selection.
The answer is false cause when the carrying capacity is surpassed, that means the predators have plenty of prey. The predators will reproduce, unaware that the food source is getting smaller. So, for a small period of time, the population will decline slowly, then quickly drop off.
Plesiadapiforms
are organisms that may have been the first primates. This group of primates underwent an adaptive radiation which enable them to produce forms with very distinctive features including weird, multi-cusped incisors and a variety of very sepcialized lower premolars.
The first record of plesiadapiforms appeared just as the non-avian dinosaurs were about to be extinct 65 million years ago, near the inception of the Paleocene age. Some of these primates persisted well into the epoch of Eocene with the last of its species extincting around 37 million years ago.
The above-mentioned method is used to analyze the streak of a mineral. Streak can be different from that of the color of the mineral, itself. It is used for soft minerals, and such minerals have their characteristic streaks. So the correct answer to your question is D.
