What type of mask is required to prevent droplet transmission?
Healthcare workers should wear a surgical face mask where a resident is unwilling or unable to wear a surgical face mask. Remove and dispose of contaminated aprons and gloves and perform hand hygiene prior to transporting resident on Droplet Precautions.
What is airborne isolation precautions?
Airborne precautions apply to patients known or suspected to be infected with microorganisms transmitted by airborne droplet nuclei. Preventing airborne transmission requires personal respiratory protection and special ventilation and air handling.
What are the 3 types of isolation?
These include temporal isolation, ecological isolation, behavioral isolation, and mechanical isolation.
How can isolation occur?
Isolation means that organisms of the same species are separated, and happens when there is something between the organisms that they can't cross. Organisms become isolated as a result of environmental change. The cause of isolation can be gradual, like when mountains or deserts form, or continents split apart.
What are the 5 factors that lead to evolution?
Five different forces have influenced human evolution: natural selection, random genetic drift, mutation, population mating structure, and culture. All evolutionary biologists agree on the first three of these forces, although there have been disputes at times about the relative importance of each force.
What is Behavioural isolation?
Behavioral isolation occurs when populations of the same species begin to develop different behaviors that are not recognized or preferred by members in another population. The most common example of behavioral differences is mating calls.
What can cause reproductive isolation?
Any of the factors that prevent potentially fertile individuals from meeting will reproductively isolate the members of distinct species. The types of barriers that can cause this isolation include: different habitats, physical barriers, and a difference in the time of sexual maturity or flowering.
What are the Postzygotic barriers?
Postzygotic barriers include the creation of hybrid individuals that do not survive past the embryonic stages ( hybrid inviability ) or the creation of a hybrid that is sterile and unable to produce offspring ( hybrid sterility ).
Which situation is an example of behavioral isolation quizlet?
Which situation is an example of behavioral isolation? Female spiders only mate when a male of the same species taps her web in a particular way.
What is found when alleles among different human groups are analyzed quizlet?
What is found when alleles among different human groups are analyzed? There are no race-specific alleles and no consistent patterns of allele frequencies.
Which best describes the fossil record quizlet?
Which best describes the fossil record? The fossil record is the highly ordered sequence in which fossils are found in layers of sedimentary rock.
Which is not an example of behavioral reproductive isolation?
“Species of fish living in different areas of a pond due to differential salt concentrations” is not an example of behavioral isolation because there is not difference in mating behaviors that reproductively isolates the two species of fish.
What produces gene flow?
Gene flow is the movement of genes into or out of a population. Such movement may be due to migration of individual organisms that reproduce in their new populations, or to the movement of gametes (e.g., as a consequence of pollen transfer among plants).
What is hybrid infertility?
Hybrid infertility: Reduction in the quality and/or number of gametes produced by a hybrid (in comparison with its parents). Hybrid inviability: Impairment of a hybrid's ability to survive (in comparison with its parents).
Which example is a post fertilization barrier?
Understanding Reproductive Barriers : Example Question #3 Zygote mortality is an example of post-zygotic reproductive isolation. In this type of reproductive isolation, gametes from two species may fuse, however the zygote is inviable shortly after fertilization due to improper development.
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