The temperature of the body is regulated almost entirely by nervous feedback mechanisms, and almost all these mechanisms operate through temperature regulating centers located in the hypothalamus. Following statements are as follows:

A. The anterior hypothalamic-preoptic area contains large numbers of heat-sensitive neurons, as well as about one third as many cold-sensitive neurons. These neurons are believed to function as temperature sensors for controlling body temperature.

B. The heat-sensitive neurons increase their firing rate 2- to 10-fold in response to a 10°C increase in body temperature. 

C. The cold-sensitive neurons, by contrast, increase their firing rate when the body temperature increases.

D. Anterior hypothalamus integrates the central and peripheral temperature sensory signals.

Which of the following combination is correct?

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#Question id: 24521

#Unit 9. Evolution & Diversity of Life Forms

Adaptation is involved in

a. aestivation

b. Genetic drift

c. Origin of new species

d. Coevolution

TLS Online TPP Program

#Question id: 24522

#Unit 9. Evolution & Diversity of Life Forms

Plants will grow continuously  and refer to  genetically and phenotypically changes in the characteristics of interacting species resulting from the natural selection is applied on insect. This is an example of

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#Question id: 24523

#Unit 9. Evolution & Diversity of Life Forms

Adaptation is the process in which animals has chances to increasing surviving ability such as in case of  warfarin the heterozygous allele have more surviving ability in compare to homozygous sensitive and homozygous recessive, what will be the reason behind that  homozygous  recessive will not be survive?

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#Question id: 24524

#Unit 9. Evolution & Diversity of Life Forms

Which of the following is defined as any consistent difference in fitness among phenotypically different classes of biological entities?

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#Question id: 24525

#Unit 9. Evolution & Diversity of Life Forms

__________ is the number of offspring an individual leaves in the next generation

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#Question id: 24526

#Unit 9. Evolution & Diversity of Life Forms

In a species, only 1 of every 1000 seeds survives to reproductive age, and that those that survive produce an average of 3000 seeds , what will be the average fitness of  species ?