The specialized bird feet show in the illustration are result of natural selection and are examples of ? A.adaptation B.genetic drift C.domestic breeding D.two ramdom mutation

Which measurement can be used to determine if the earplug are needed when working in the factory? A.watts B.amps C.decibels D.delta waves

The graph shows changes over time in a population of bacteria added to a test tube of growth midium. What activity characterizes the growth cycle during phase II A.bacteria are weakening due accumulation of waste products. B.bacteria are increasing in a metabolic activity through not dividing. C.bacteria are dying off rapidly from lack nutrients and space. D.bacteria are dividing regularly binary fusion.

Carbon-14 is an example of an A.isotope B.isobar C.allele D.alloy

Which occupation would most likely be involved in genome mapping A.gerontologist B.geneticist C.geophycist D.geologist

Which of the following is a true statement about electron A.it has a positive charge B.it exhibits some properties of waves C.it is located inside the atom’s nuclear D.it has the most off all atomic articles

Both parents of a child are carriers of recessive allele for disorder.what is the probability of their child having the recessive disorder? A.0% B.25% C.50% D.100%

The rate at which work is done is called A.power B.energy C.volocity D.momentum

Which of the following is caused by paghogenic bacteria? A.stroke B.influence C.tuberculosis D.common cold

A substance considered acidic if it? A.is non reactive with metals B.has a pH level higher than 7 C.contains and releases by hydroxide ions D.ionizes in the water to form hydrogen ions

Mayonnaise is an example of? A. Aprecipitate B. An emulsion C. A solute D. A gel

Which of the following types of energy is transferred by vibrating air particles? A.nuclear B.electrical C.mechanical D.electromagnetic

Which of these is a part of a DNA structure? A.lidocaine B.benzene C.guanine D.radon

Which of the following is a true principle of inertia? A.it is a force that cause objects to move B.it is proportional to the mass of an object C.it is the tendency of an object to change its backward motion D.it is natural phenomenon the exists when friction is absent

Which human system contains the thyroid gland? A. Circulatory B.respiratory C.endocine D.glandular

A student brought a sandwich for 80cents, milk for 20 cents and a pie for 30 cents. How much did the meal cost ? A. $1.00 B. $1.20 C. $1.30 D. $1.40 E. $1.60

A person walked a dog 2/3 of a mile on Thursday and 5/7 of mile on Friday . What total miles did the person walk the dog ? A. 7/10 B. 10/21 C.1 3/8 D.1 8/21

A friend gives a neighbor 13 2/3 feet of twine from a brand new spool, leaving 38 2/5 feet of twine on the spool. How many total feet of twine were originally on the spool. A. 51 1/15 B. 51 4/5 C. 52 1/15 D.52 1/5

If the employee invests 5% of his-tax salary into a retirement plan. The company will match 25% of that amount. How much will company contribute to the plan if the employee earns $50,000 before the taxes? A.$6,250 B.$2,500 C.$625 D.250

Two tanks are each partially filled with 96 gallons of water, as shown in the illustration. Tank a is 4/5 full and tanks B is 2/3 full. What is the maximum amount of water that can be held in the both tank together? A. 128 gallons B. 192 gallons C. 256 gallons D. 264 gallons

A wooden box is 1 foot high, 3 feet wide, and 5 feet long. Bob is going to use it for a table top and plans to paint 4 side and top . How many square feet will be painted ? A. 15 B. 30 C. 31 D. 46

What is the approximate surface area of a box that is 8 inches wide .12 inches long and 9 inches tall? A. 276 sq in. B. 444 sq in. C. 456 sq in. D. 552 sq in.

Julian earns $68.800 per year and wants to begin investing her money. She figures she can afford to invest 40% of her annual salary. Of that,60% will be invested in corporate bonds,while 40% will be invested in securities. If the corporate bonds and securities yield 7% and 12% annual interest, respectively. How much interest will be julia earn in 1 year. A. $2,218 B. $2,448 C. $2,720 D. $3,627