Question

science questions on teas

Answer 1

1. Hexane has which of the following types of chemical bonds

• All single bonds
• Single and double bonds
• Single and triple bonds
• Double abd triple bonds

answer: all single bonds

2. A catalyst is able to speed up a chemical reaction by doing which of the following

• Increase the transition state
• Lower the activation energy
• Decrease the thermal energy
• Increase the heat exchange

answer: lower the activation energy

3. For eye color, brown eyes are dominant to blue eyes. A heterozygote and a homozygous dominant individual would have what colored eyes?

• Blue only
• Brown only
• Blue and brown
• Cannot be determined

answer: brown only

4. Which of the following is considered to be a contributing factor in the decrease of infant mortality among developed countries?

• The marital status of the mother
• The education opportunities provided to woman
• The increase in health care costs
• The decrease in domestic violence toward pregnant woman

answer: education opportunities provided to woman

5. Which of the following best explains how inhalation occurs in the human respiratory system?

• The diap/hragm contracts and lifts, making the air presure in the lungs decrease
• The diaphragm relaxes and lifts, making the air pressure in the lungs increase
• The diaphragm contracts and lowers ,making the air pressure in the lungs decrease
• The diaphragm relaxes and lowers, making the air pressure in the lungs decrease

answer: the diaphragm contracts and lowers ,making the air pressure in the lungs decrease

6.A solution has a recorded PH of 7.11. Which of th following is the best categorization of the solution

• Weak acid
• Neutral
• Weak base
• Strong base

answer: weak base

7.Which is likely to occur following the emigration and immigration of individuals into a population near an open body of water

• The population will remain the same if the rate of immigration is equal to the birth rate
• The population will increase if the rate of immigration is less than the rate of emigration
• The population will increase if the rate of immigration is greater than the rate of emigration
• The population will decrease if the rate of immigration is greater than the rate of emigration

answer: the population will increase if the rate of immigration is greater than the rate of emigration.

8. Which of the following structures is essential in the controlling of the autonomic functions of the peripheral nervous system

• pons
• thalamus
• hypothalamus
• medulla oblongata

answer: medulla oblongata

9. Which of the following organelles is responsible for digesting damaged cellular structures, as well as macromolecules and bacteria ingested by the cell?

• Lysosomes
• Endoplasmic reticulum
• Golgi apparatus
• Mitochondria

answer: lysosome

10.Which of these is not a function of mitosis

• Repair of damaged tissue
• Growth of the organism
• Producing gametes
• Asexual reproductiom

answer: Producing gametes