Which portion of the ear is responsible for balance?
A. Outer ear
B. Middle ear
C. Inner ear
D. All of the above
In the levels of organization for biological systems, you identify populations, tissues, organs, and organisms. Which of these four is the smallest level of organization?
In the levels of organization for biological systems, you identify populations, tissues, organs, and organisms. Which of these four is the smallest level of organization?
A) Population
B) Tissue
C) Organ
D) Organism
How can embryos scientists understand evolution?
How can embryos scientists understand evolution?
A. Embryos contain the code for all life on Earth.
B. Embryos provide evidence for which life forms existed at the same time.
C. Embryos are frequently fossilized and illustrate change over time.
D. Embryos go through various stages that suggest the animal’s evolutionary process.
In what type of soil do plants grow best?
In what type of soil do plants grow best?
a. neutral or slightly acidic
b. highly basic
c. neutral or slightly basic
d. highly acidic
Which of the following soil properties is not influenced by microorganism activity?
Which of the following soil properties is not influenced by microorganism activity?
a. soil acidity
b. amount of organic matter
c. nutrient levels
d. none of the above
Which of the following is necessary in order to classify the different types of electromagnetic radiation?
Which of the following is necessary in order to classify the different types of electromagnetic radiation?
A) Amplitude
B) Frequency
C) Phase
D) Velocity
Which statement about intermolecular forces is not true?
Which statement about intermolecular forces is not true?
A. In a sample of CCl4, intermolecular forces occur between CCl4 molecules.
B. For molecules of a similar size, hydrogen-bonding is generally stronger than London (dispersion) forces.
C. Samples of nonpolar molecules usually exhibit London (dispersion) forces only.
D. Dipole-dipole intermolecular forces are found between nonpolar molecules.
What occurs during apoptosis?
What occurs during apoptosis?
A.The cell divides uncontrollably
B.The cell creates a tumor
C.The cell self destructrs
Mitosis maintains living organisms by which of the following processes? 1. the removal of waste from the body 2. the exchange
Mitosis maintains living organisms by which of the following processes?
1. the removal of waste from the body
2. the exchange of gas with the environment
3.the healing of a cut after an injury
4. the formation of sperm and egg
Compare the strength of attractions between the particles in a glass window, raindrops on the window, and the air around
Compare the strength of attractions between the particles in a glass window, raindrops on the window, and the air around the window. Assume the window, the raindrops, and the air are all at 25 °C. Explain your answer.