Which phase of matter consists of ionized particles that move independently of each other? a. gas b. liquid c. plasma d. solid
According to the theory of evolution, birds' feathers evolved from. a. reptile scales b. gill slits. c. fish fins. d. gill arches.
Garden plants are eaten by snails, which are eaten by birds, which are eaten by the household cat. What happens to the other members of the food chain if the cat is removed? a. The number of plants, snails, and birds increase. b. The number of plants and snails increase and the number of birds decreases c. The number of plants increases and the number of snails and birds decrease. d. The number of plants and birds increase and the number of snails decreases.
Tobacco can damage the immune system of a person with aids. please select the best answer from the choices provided. t f
A river’s ____ is the sediment and other deposits picked up as a result of abrasion. a. slope c. flow b. volume d. load
What is the property that is most similar among all elements across one whole period called? the category the atomic mass the chemical properties the electrical conductivity
Identify each of the cell structures indicated in figure 7-7 and explain its role in the cell. Be sure to indicate the letter that corresponds with each structure Download jpg
Which of the following would most likely be a cause of primary succession? a. farming b. overhunting c. volcano d. defoliation
Why is heartwood darker in color than sapwood? A. Heartwood is closer to the center of the stem; sapwood is away from the center of the stem B. Heartwood does not conduct water; sapwood is active in fluid transport C. Heartwood contains xylem tissue; sapwood contains phloem tissue
Which of the following statements about the compound HCI is true? a. The physical and chemical properties of HCI are different from those of H2 and CI2. b. Only the physical properties of HCI are different from those of H2 and CI2. c. Only the chemical properties of HCI are different from those of H2 and CI2. d. The physical and chemical properties of HCI are the same are those of H2 and CI2.
Which structure allows a virus to recognize and attach to receptors on the host cell? cell wall capsid protein cell membrane nucleic acid
A meander is best described as a A. depression for swimming. B. straight streamline into a lake. C. bend or curve in a stream channel. D. pond located streamside.
Which of a cell's organelles releases energy stored in food? A. Chloroplasts B. Mitochondria C. ER (Endoplasmic Reticulum) D. Lysosomes
The exploration of the mid-Cayman rise is intended to discover _______. a. what life may have been like before the evolution of photosynthesis b. the origins of photosynthesis c. life in shallow, coastal regions d. the chemical composition of undersea mountains
Which statement about supercell storms is false? A. A supercell storm can produce some of the most violent weather conditions on Earth. B. A supercell storm is characterized by rotating updrafts. C. A supercell storm occurs only during the winter months.
Which of the following winds are found in the upper troposphere? a. Jet streams b. Trade winds c. Surface winds d. Coriolis winds
Complete the following sentences. 1. The appearances of fireflies at dusk is an example of a circadian rhythm because it's ______. a. Is related to the phase of the moon b. Is related to the temperature of the air c. Happens daily d. Happens seasonally 2. During migration, animals undertake a _______. a. Seasonal movement. b. Repeating daily cycle of behavior. c. Sleeplike state. d. Search for new permanent habits.
Which of the following is not a characteristic of rivers and streams? a. vary in size b. mainly saltwater c. part of the water cycle d. flow toward other bodies of water
Which of the following would not be considered a renewable resource? a. oxygen b. natural gas c. freshwater d. trees
What is the useful product of glycolysis for the cell? A. NAD+ B. pyruvate C. lactic acid D. ethyl alcohol
How do antifungal drugs such as miconazole and amphotericin b function? view available hint(s) how do antifungal drugs such as miconazole and amphotericin b function? by inhibiting cell wall synthesis by interfering with the processes of dna replication and transcription by disrupting the plasma membrane?
What transport process is pictured? A) exocytosis B) cotransport C) osmosis D) diffusion Download png
Phosphorus is contained in _______. a. living organisms b. soil c. bodies of water d. all of the above
What is the main function of mesophyll tissue of leaves? A.) Conduction of substances B.) Regulation of opening and closing of stomata C.) Photosynthesis
Which phrase best describes a gene? (1) a segment of a DNA molecule found only in the body cells of an organism (2) a segment of a DNA molecule found only in the gametes of an organism (3) a segment of a DNA molecule that contains the instructions for producing a trait in an organism (4) a segment of a DNA molecule that contains the instructions for producing all the characteristics of an organism