What system are we talking about? Context is needed... water cycle, cells, etc?
Constant variables are variables that are kept the same in all groups during an experiment.
<h2>Natural selection </h2>
Explanation:
Malthus's ideas about geometric population growth implied that: resources in every generation would be limited, therefore individuals in every generation would have to compete for those resources
- Thomas Malthus argued that the food supply increased linearly while population size increased exponentially
- The central theme of Malthus' work was that population growth would always overpower food supply growth, creating perpetual states of hunger, disease, and struggle
- The natural, ever-present struggle for survival caught the attention of Darwin, and he extended Malthus' principle to the evolutionary scheme
- Malthus’ writings ultimately inspired Darwin’s theory of evolution by natural selection
resources in every generation would be limited, therefore individuals in every generation would have to compete for those resources.
Answer and Explanation;
Investigate the number of toes for other mammals and use parsimony to deduce the ancestral state.
Investigate the number of toes for an out group that is closely related to mammals, for example reptiles or amphibians.
-Primates have five fingers on their hand and five toes on their feet. Most species have fingernails instead of claws and they have touch-sensitive pads on each of their digits.The hands and feet of all primates, except for humans, are designed for grasping. Humans have hands designed for grasping, but not feet! Humans have opposable thumbs.
-The earliest horses had three or four functional toes. But over millions of years of evolution, many horses lost their side toes and developed a single hoof. Only horses with single-toed hooves survive today, but the remains of tiny vestigial toes can still be found on the bones above their hoofs.
Answer:
Tornadoes that come from a supercell thunderstorm are the most common so the answer would be
D) tornado