Because the mutation pauses the whole system causing it to restart and create a new trait
Answer:
1)Auditory nerve is answer.
Explanation:
Nerve impulses are transmitted from the ear to the brain via the auditory nerves.
I hope it's helpful!
Organisms were grouped by habitat, not structrual similarity
hope it helps
Trypanosoma brucei obtain food by using its host, the Tsetse fly. It's a parasite that lives inside the fly and as the fly searches for food which is blood from animals or humans, the parasitic organism transfers. Inside another host, the organism feeds, grows and multiplies.
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Complete question:
Ecosystems in human-dominated landscapes are generally _____ and _____, and support more species with _____ - selected reproductive strategies, and are typical of _____ succession.
<u>Group of answer choices
</u>
- fragmented, pristine, k, early
- fragmented, disturbed, k, early
- fragmented, disturbed, r, early
- unfragmented, disturbed, r, early
- unfragmented, pristine, r, early
Answer:
The correct answer is number 3. fragmented, disturbed, r, early.
<em>Ecosystems in human-dominated landscapes are generally </em><em>fragmented</em><em> and </em><em>disturbed</em><em>, and support more species with</em><em> r </em><em>- selected reproductive strategies, and are typical of </em><em>early </em><em>succession.
</em>
Explanation:
Species have different strategies to survive in different environments, reproduce, disperse, and compete. These strategies are r strategies and k strategies.
- "r" species have a high growth rate per capita, low competition capabilities. This is why they can colonize new environments. But they can not compete with new-established species. "r" species are often displaced by "k" species. These species are mostly small-sized organisms with short life cycles. They reach sexual maturity early and have numerous descendants spending no time or energy in parental care.
- "k" species have a low growth rate per capita, but they are big competitors with the capacity of displacing other species and monopolizing the available resources. These are big-sized species that live for a long time, reaching sexual maturity in advanced stages of their lives. They do not have numerous progenies, but they spend time in parenting.
r and k strategies are closely related to reproductive strategies, habitat selection, and dispersion ability.
As human-dominated landscapes are generally fragmented and disturbed, new areas are constantly available for r species to colonize them. This is an early stage of succession when these r species arrive in the open perturbated space and colonize it. These r species start a modification in the habitat that makes it suitable for the posterior establishment of later K species. As conditions get better, competition becomes more frequently between species. The first species are eventually eliminated by competition, but new species keep appearing and competing for resources.
