Answer:
The correct answer is: Yes, this is an example of Reproductive Isolation.
Explanation:
- Reproductive Isolation can be defined as the mechanism adopted by different species during the course of their evolution, due to which the individuals belonging to different species are incapable of mating with each other and producing viable offspring.
- The given question is an example of Mechanical, Pre-zygotic Reproductive Isolation.
- Prezygotic Isolation refers to the mechanism adopted by individuals of different species during the course of evolution such that successful fertilisation of gametes from individuals of different species never occur, hence a viable zygote is never formed.
- Mechanical Isolation refers to the mechanism adopted by individuals of different species during the course of evolution such that their reproductive organs or the organs that assist in the process of reproduction are incompatible to each other. Hence, the gametes of each species are unable to come in vicinity of each other.
- Here, the pollen grain from the flower of one species of juniper is unable to form the pollen tube when its sits on the stigma of the flower of another species of juniper. This is an example of Mechanical Isolation.
Answer:
Option-C
Explanation:
Hamilton gave the mathematical expression for the altruistic behaviour or trait in a population which suggested that the alleles for altruistic behaviour will be favoured by the natural selection if BR-C > 0.
The mathematical expression for the altruistic trait is rb> c
where r - relatedness, b- the benefit to recipient and itself also and c-cost to an actor.
In the given question, all the cases meet the condition of Hamilton's rule except one which is the In- law bee-eaters which raise the young near to the nest as the parents who can raise the young ones are not benefited personally from the action of the young as the young one treat them as non-kin. This does not fulfill the condition of the Hamiltons rule.
Thus, Option-C is correct.
Answer:
Scientists classify the different types of soil into major groups based on climate, plants, and soil composition. ... Some soil organisms make humus, the material that makes soil fertile. Other soil organisms mix the soil and make spaces in it for air and water.
Explanation:
Hope this helps :))
Answer:
C
Explanation:
scientists use carbon dating to see how old things are :)
Answer:
Fundamento: La industria farmacéutica a nivel internacional tiene entre sus estrategias la propaganda de medicamentos directa al consumidor, para incrementar sus ganancias.
Objetivo: Valorar cómo puede influir la promoción inadecuada en el uso racional de medicamentos y como se presenta en Cuba.
Metodología: Se realizó una búsqueda de información, en fuentes primarias y secundarias, sobre promoción y uso no adecuado de los medicamentos.
Resultados: Se encontró que la propaganda realizada de manera directa al consumidor genera un aumento de las ventas de los productos anunciados, lo cual hace de la promoción una herramienta esencial de marketing para la industria farmacéutica internacional, situación que no es uniforme, sino que varía de un país a otro con un denominador común: las anomalías mayores presentes en los países en desarrollo. La Organización Mundial de la Salud en 1988 publicó los “Criterios éticos para la promoción de medicamentos”, los cuales sirven de base para elaborar regulaciones sanitarias por parte de las autoridades nacionales de salud que permitan garantizar la calidad, seguridad y eficacia de los medicamentos.
Conclusiones. El trabajo conjunto entre autoridades sanitarias, profesionales de la salud y pacientes permitirá lograr un uso adecuado de los medicamentos sin el sesgo que conllevan los mensajes promocionales.
Palabras clave: Industria farmacéutica y ética; ética farmacéutica; control de la publicidad de productos¸ publicidad de medicamentos; tecnología farmacéutica y ética; preparaciones farmacéuticas; medicamentos sin prescripción.
DeCS: INDUSTRIA FARMACÉUTICA/ética; ÉTICA FARMACÉUTICA; CONTROL DE LA PUBLICIDAD DE PRODUCTOS; TECNOLOGÍA FARMACÉUTICA/ética; PREPARACIONES FARMACÉUTICAS.
Explanation:
