Question: Are Humans K Or R?

What is K human?

Vitamin K refers to a group of fat-soluble vitamins that play a role in blood clotting, bone metabolism, and regulating blood calcium levels.

The body needs vitamin K to produce prothrombin, a protein and clotting factor that is important in blood clotting and bone metabolism..

Are turtles R or K-selected?

Plants such as dandelions are another good example of an r-selected species. … Sea turtles are a good example of a species that fits somewhere in the middle. The produce many eggs and do not care for their offspring once the eggs have been laid, but turtles live very long lives.

Are frogs K strategists?

Frogs produce many eggs, and a fraction live to reproduce themselves. They are an example of r-strategists. “r and K selection.” University of Miami: Department of Biology.

What is the R vs K theory?

In ecology, r/K selection theory relates to the selection of combinations of traits in an organism that trade off between quantity and quality of offspring. … In contrast, more stable environments allow parents to confidently invest in one offspring because they are more likely to survive to adulthood.

Are primates K-selected or R-selected?

In this equation N is the number of individuals in the population, t is time, and r is the biotic potential. Examples of K-selected species include birds, larger mammals (such as elephants, horses, and primates), and larger plants.

What animals are r strategists?

Typical examples of r-species are mice, rabbits, weeds and bacteria, which have a lot of offspring, but a short life expectancy. Examples of organisms undergoing K-selection are tortoises, elephants, people, and sequoia trees: their offspring are few but long-lived.

Are K-selected species opportunists?

Explanation: R-selected or opportunistic species are species that have high growth rates, produce many offspring, and have low survival odds for those many offspring. … Examples of k-selected species include mammals such as humans, dolphins, and rhinos.

Are jellyfish R-selected?

r-selected species Animals that are r-selected do not give long-term parental care and the offspring are relatively mature and self-sufficient at birth. Examples of r-selected species are marine invertebrates, such as jellyfish, and plants, such as the dandelion.

What is a feature of R-selected species?

The production of numerous small offspring followed by exponential population growth is the defining characteristic of r-selected species. They require short gestation periods, mature quickly (and thus require little or no parental care), and possess short life spans.

What is the difference between R and K selective?

r-selected babies grow rapidly, and tend to be found in less competitive, low quality environments. … K-selected species produce offspring that each have a higher probability of survival to maturity.

Can humans be r-selected?

These species are characterized by having only a few offspring but investing high amounts of parental care. Elephants, humans, and bison are all k-selected species. … R-selected species can include mosquitos, mice, and bacteria.

Are oak trees R or K strategists?

This oak tree near my house is classified as a k-strategist because of it’s species survival strategies. The oak tree, like other k-strategists, develop in stable environments where their species population remains at stable numbers.

Are Grizzly Bears K selected?

The grizzly bear (Ursus arctos ssp.) Elephants and bears though, also take K-selection reproduction very seriously. … Because of the immense dedication mother’s provide for their cubs, many of a bear’s advantageous traits are attributable to this K-selection type reproduction style.

Why are rabbits r-selected species?

So this begs the question are rabbits truly prolific, and why? In Page 2 the 1960s two ecologists came up with r/K selection theory. It relates to parental investment and reproductive strategies adopted by species in order to advance its kind into the future. … And they have the ability to reproduce rapidly.

Are Fish R strategists?

R strategists usually create an abundance of offspring in the hopes that a few will make it. include bacteria, insects, and fish. lessons from their parents. K-selected species include elephants, apes and whales.

Are Lions K-selected?

Common examples of k-strategists species include humans, lions and whales.

Are dogs K strategists?

Indeed, one can think of a given organism as an “r-strategist” or a “K-strategist” only relative to some other organism; thus statements about r and K selection are invariably comparative. Cats and dogs are r-selected compared to humans, but K-selected compared to mice and rats.

What is r at carrying capacity?

In the equations describing growth of populations of organisms, r represents the slope of the line representing exponential growth. The letter K represents the carrying capacity of a habitat for members of a given sort of organism.