In North American forest, two species of birds, nuthatches and brown creepers, forage on the same trees for insects. Brown creep
ers feed on insects near the bottom of the tree trunk, while nuthatches feed on insects in the top part of the tree. The difference in foraging behavior most likely affects the nuthatches and brown creepers by: allowing birds to avoid many types of predators allowing birds to avoid many types of predators reducing competition between the birds for resources reducing competition between the birds for resources preventing the birds from interbreeding with each other preventing the birds from interbreeding with each other establishing dominance between the birds for nesting sites
The correct answer is - reducing competition between the birds for resources.
Explanation:
In this ecosystem, the two species of birds brown creepers and nuthatches share habitat in the same tree for their food resources are insects. Brown creepers feed on resources on the bottom of the tree whereas nuthatches feed on the top of the tree.
By this, they avoid competition between these two birds for the same food resources in the same tree. The competition would be more if both have depended on the insects all over the tree.
PfEMP1 stands for <em>Plasmodium falciparum</em> erythrocyte membrane protein-1. These antigens play a very important role in host immune invasion. Production of antibody against PfEMP1 antigens has been shown to contribute to natural immunity.
Malaria is associated with the parasites exhibiting an antigenically distinct <em>Plasmodium falciparum</em> erythrocyte membrane protein-1 subset thereby mediating binding to endothelial receptors.
Organism needs time to reach adulthood and to reproduce.
Requires the contribution of two parents.
Asexual Reproduction:
Creates genetically identical offspring.
Organism doesn't have to waste energy to find a mate.
Requires the contribution of a single parent.
Explanation:
Sexual Reproduction:
Sexual reproduction involves the fusion of a male and female gamete. A gamete is a haploid cell that contains half of the chromosomes as in the parent cell. This process is called fertilization and it results in the formation of a zygote, a diploid cell that develops into an embryo and ultimately an individual.
Sexual reproduction involves two parents, each of which contributes one set of chromosomes (23) to the offspring.
Asexual Reproduction:
Asexual reproduction produces an exact copy of one single parent. Offspring produced through asexual reproduction do not possess genetic variation.
Asexual reproduction occurs through four processes:
