When bacteria swim from cold to warm regions, this is known as

• A. positive phototaxis
• B. negative phototaxis
• C. positive thermotaxis
• D. negative chemotaxis

The only caste in the termite colony whose members can feed themselves are the

• A. workers
• B. reproductives
• C. soldiers
• D. nymphs

The function of ribosome in cells is

• A. protein synthesis
• B. starch synthesis
• C. transport of material
• D. lipid storage

Which of the following is the best explanation for a child who is phenotypically short and born of two tall parents

• A. both parent possess genes for shortness
• B. the father possess a gene for shortness
• C. nature makes the child short
• D. none

Deamination occurs in the?

• A. Kidney
• B. Pancreas
• C. Spleen
• D. Liver

If both parents are heterozygous for a trait. the probability that an offspring will be recessive for that trait is?

• A. 1/2
• B. 1/4
• C. 1
• D. 3/4

The probability of a baby being a boy or a girl depends on the contribution of the

• A. father's sex cells
• B. father's stomatic chromosome
• C. mother's sex cell
• D. mother's X-chromosome

The smallest living organism which share the characteristics of both living and non-living matter are

• A. bacteria
• B. fungi
• C. viruses
• D. protozoa

Which of the following vertebrates has the most simple structured heart

• A. reptile
• B. fish
• C. mammal
• D. Amphibian

The ability of the eyes to focus on both near and distance objects is termed

• A. image formation
• B. refraction
• C. hypermetropia
• D. accommodation