Answer:
D) Competition between organisms
Explanation:
Random mating between organisms, absence of any factor of evolution (mutation, recombination, gene flow, migration etc.) and a large population size serve to maintain the allele frequency and thereby the phenotype frequency over generations. However, competition between organisms for any natural resource leads to natural selection of "better competing organisms" and increases their phenotype frequency in the population.
2 and 3 i think should be right
The three parts of an amono acid are the carboxyl group(-COOH) an amino group(-NH2) and a radical that differs from amino acid to amino acid(-R)
Mammals survived the K-Pg mass extinction event because they are able to regulate their body temperature in the face of reduced sunlight and colder temperatures.
<h3>What is the K-Pg mass extinction event?</h3>
The K-Pg mass extinction event is a sudden extinction of mammals that happened over 66 million years ago on earth and affected several species.
One of the factors that enabled the mammals to survive this K-Pg mass extinction event is that mammals are able to regulate their body temperature in the face of reduced sunlight and colder temperatures.
Learn more about mammals: brainly.com/question/10194338
Answer:
a. when search time is long relative to handling time, predators should be generalists.
Explanation:
In behavioral ecology, the optimal foraging theory can be used to predict animal behavior related to the search for food. Animals need to take different foraging approaches in order to obtain better energy cost benefits. This theory proposes that natural selection chose animals that maximize their adaptive fitness by adopting the better (economically effective) foraging pattern according to its environment. Moreover, animals are regarded as generalists when they are capable of surviving in many different habitat conditions and/or eat different types of foods (omnivores are generally generalist species). In this case, predators with large search times don't have time to choose between different prey, thereby they will be generalists.
