Why do organisms evolve?
I sacrificed my grades for this ðŸ˜ðŸ˜
1. The fossils are from a descendant of animal T.
2. Organisms with traits that help them survive and reproduce in their environment pass on those traits.
3. A, C, B
4. Which animal is older?
5. Fossils of Archaeopteryx have traits of both dinosaurs and birds.
Good luck ðŸ˜
Just a kid is mostly correct 2 is organisms with traits that help them survive and reproduce in their environment pass on those traits
Organisms evolve in order to adapt to their environment. Evolution is a process of change over time, and it allows organisms to develop traits that help them survive and reproduce in their environment. This process of natural selection helps ensure that the organisms best suited to their environment will survive and pass on their traits to future generations.
Organisms evolve as a result of the process of natural selection. Natural selection is a fundamental mechanism of evolution, where organisms with advantageous traits are more likely to survive and reproduce, passing on those traits to future generations.
The underlying reason why organisms evolve is the presence of variation within a population. Variation can occur due to genetic mutations, sexual reproduction, or genetic recombination. These variations can result in differences in traits among individuals that can impact their ability to survive and reproduce in a given environment.
When the environment changes, certain traits may become more or less beneficial for an organism's survival. Those individuals with traits that increase their chances of survival and reproduction will have a higher probability of passing on those traits to their offspring. Over time, these advantageous traits become more common in the population, while less advantageous traits may decrease or disappear.
For example, consider a population of a particular bird species living in an area with different types of food sources. Birds with longer beaks may be better at accessing nectar from flowers, while birds with shorter beaks may be more efficient at catching insects. As long as those food sources remain available, both types of birds can coexist. However, if there is a change in the environment, such as a decrease in the availability of nectar, the birds with longer beaks may have a selective advantage, as they can still access the remaining nectar, while the birds with shorter beaks may struggle to find enough food. Over time, the population may shift towards having more individuals with longer beaks, as they have a higher chance of survival and reproduction.
In summary, organisms evolve because variation within populations, combined with changes in the environment, drives natural selection. This process leads to the adaptation of organisms to their environments over generations.