2022 - JAMB Biology Past Questions and Answers - page 4

The correct answer is Option C

Lizards use displays such as tail wagging, bright colors, mouth gaping or displaying, inflation, body posture, head bobs, and 'push-ups' to send signals and attract potential mates. Some species of lizards can even change their color to attract a mate.

The correct answer is Option C

While the end products of protein digestion are amino acids, the end products of carbohydrate digestion are primarily glucose, along with some fructose, glucose, and galactose.

The correct answer is Option A

Observable traits, including height, eye color, and blood type, make up an individual's phenotype.

Both an individual's genomic makeup (genotype) and environmental factors contribute to determining their phenotype.

The correct answer is Option B

Crocodiles, birds, whales, horses, bats, and humans have limbs that differ greatly in appearance, yet they all possess the same fundamental five-fingered bone structure.

This shared characteristic among such diverse species provides supporting evidence for the theory of evolution.

The correct answer is Option D

Congenital hypothyroidism, formerly referred to as cretinism, is a severe thyroid hormone shortage in infants.

It results in reduced growth, decreased neurological function, and physical abnormalities.

The correct answer is Option D

Typically, they protect the flower in bud and provide support for the petals when they are in bloom.

The correct answer is Option B

Taxonomy, or the system of categorising and naming living things, was founded by Carolus Linnaeus.

The creation of a hierarchical framework for classifying nature was one of his accomplishments.

This system consists of eight levels of classification (taxa), which include domain, kingdom, phylum, class, order, family, genus, and species.

The correct answer is Option D

Camels have a hump, which aids them in enduring extended periods without water and surviving in the challenging conditions of the desert.

The hump serves as an energy or fat reserve, enabling camels to sustain themselves during prolonged journeys without access to food or water.

The correct answer is Option B

All embryos of the volvocacean family are connected by comparable cytoplasmic bridges that link their cells together.

These bridges consist of strands of cytoplasm that join neighboring cells, enabling them to communicate and function as a unified organism.

The correct answer is Option C

The genus Volvox, belonging to the family Volvocaceae, comprises polyphyletic chlorophyte green algae that grow in spherical colonies of up to 50,000 cells.

The plant body of Volvox is known as a coenobium and comprises numerous biflagellate, pear-shaped cells.