The value of the energy for the first excited state of hydrogen will be

#Question id: 428

#XL - Q Biochemistry

The most biochemically complex organisms are ________.

#Question id: 15757

#XL - S Microbiology

#Question id: 1036

#XL - T Zoology

A urine sample with more than 100,000 organisms is considered indicative of infection. A urine sample containing 5,000 bacteria, with a generation time of 30 minutes, sits for 3 hours before finally being assayed. How many bacteria will then be present within the sample?

#Question id: 3254

#XL - T Zoology

Consider a single locus with 2 alleles which are at Hardy-Weinberg equilibrium. If the frequency of the heterozygous genotypes is 0.42, what is the frequency of one homozygote in the population?

#Question id: 11411

#XL - T Zoology

Vulnerability to extinction can be linked to species following characteristics. Which of the following statement are correct?

 A. Rare species are more prone to extinction than common ones.

 B. Species that are capable of migrating between fragments of habitat, such as between mainland areas and islands, may be more resistant to extinction

 C. Organisms that are specialists are more likely to go extinct

 D. Species with naturally long life spans may be more likely to become extinct