My QUIZ Science 8

Which of the following is NOT a part of the digestive system?

• Liver

• Kidney

• Stomach

• small intestine

How does the nervous system regulate digestion?

• By producing enzymes

• By secreting hormones

• By controlling muscle contractions

• By filtering waste products

As each part has its function that works well with our body. What is the main function of the small intestine?

• Absorption of nutrients

• Mechanical processing of food

• Secretion of digestive enzymes

• Storage of bile

Which body system transports nutrients absorbed by the digestive system?

• Nervous system

• Circulatory system

• Respiratory system

• Endocrine system

The roles of the liver and gallbladder play an important role in digestion? What is its function?

• Producing bile

• Absorbing nutrients

• Filtering blood

• Pumping oxygen

In a monohybrid cross between two heterozygous individuals (Rr x Rr), what is the expected genotypic ratio of the offspring?

• 1:1

• 1:2:1

• 3:1

• 9:3:3:1

It is the phenotype of an organism with the genotype AaBb?

• Homozygous dominant

• Homozygous recessive

• Heterozygous

• None of the above

In a dihybrid cross between two individuals heterozygous for both traits (RrYy x RrYy), what is the expected phenotypic ratio of the offspring?

• 9:3:3:1

• 3:1

• 1:2:1

• 1:1

If a trait is controlled by a single gene with two alleles, and one allele is completely dominant over the other, what will be the phenotype of a heterozygous individual?

• same as the homozygous dominant individual

• same as the homozygous recessive individual

• a blend of both dominant and recessive traits

• none of the above

It is the genotype of an individual with the phenotype of a recessive trait?

• homozygous dominant

• homozygous recessive

• heterozygous

• cannot be determined