Darwinism explains all the following except:

1. Within each species, there is variation

2. Organisms tend to produce more offspring than can survive

3. Offspring with better traits that overcome competition are best suited for the environment

4. Variations are inherited from parents to offspring through genes

Theory of pangenesis was given by:

1. Darwin

2. Lamarck

3. Hugo de Vries

4. Oparin

Which of the following is not true for a species?

1. Members of a species interbreed

2. Variations occur among members of species

3. Each species is reproductively isolated from every other species

4. Gene flow does not occur between the populations of a species

The diversity in the type of beaks of finches adapted to different feeding habits on the Galapagos islands, as observed by Darwin, provides evidence for:

1. origin of species by natural selection

2. intraspecific variations

3. intraspecific competition

4. interspecific competition

Age of fishes is also known as:

1. Permian Era

2. Silurian Era

3. Devonian Era

4. Ordovician Era

Variations caused by mutation, as proposed by Hugo de Vries, are:

A gene locus has two alleles A, a. If the frequency of dominant allele A is 0.4, then what will be the frequency of homozygous dominant, heterozygous and homozygous recessive individuals in the population?

1. 0.16 (AA); 0.36 (Aa); 0.48 (aa)

2. 0.36 (AA); 0.48 (Aa); 0.16 (aa)

3. 0.16 (AA); 0.24 (Aa); 0.36 (aa)

4. 0.16 (AA); 0.48 (Aa); 0.36 (aa)

In a species, the weight of a newborn ranges from 2 to 5 kg. 97% of the newborns with an average weight between 3 to 3.3 kg survive whereas 99% of the infants born with weights from 2 to 2.5 kg or 4.5 kg to 5 kg die. Which type of selection process is taking place?

Match the hominids with their correct brain size:

Select the correct option.