#Question id: 12086
#Unit 10. Ecological Principles
The herbaceous plant Achillea lanulosa is widespread in the Northern Hemisphere. Phenotypic variation in the species has been extensively studied along an altitudinal gradient from sea level to over 3,000 meters. In California there is conspicuous variation in height; alpine plants are only several centimeters tall while those in the San Joaquin Valley may reach a height of 1.8 meters. Adaptation to different local environments also results in variation in physiological processes such as photosynthetic rate, resistance to cold, and the timing of dormancy.
The genetic polymorphism found in Achillea lanulosa is most likely maintained primarily by
#Question id: 10570
#Unit 6. System Physiology – Plant
The diffusion coefficient (Ds ) is a characteristic of the substance
a) diffusion in liquid is much faster than diffusion in air
b) larger molecules have smaller diffusion coefficients
c) diffusion in air is much faster than diffusion in a liquid
d) Larger molecules have larger diffusion coefficient
Which of the following combination is correct?
#Question id: 15971
#Unit 12. Applied Biology
#Question id: 5331
#Unit 8. Inheritance Biology
In some me insect XX is female and XO is male. Red body color caused by recessive mutation, while wild type body color is green .Gene for body colour on X chromosome .if homozygous red female is crossed with wild type male, the phenotype of their offspring will be
#Question id: 33482
#Unit 2. Cellular Organization