Answer the following question given this paragraph: Pressure is defined as the force per unit area on a surface. Q: Pressure is defined as the force per unit area on? Choices: - weight - gravity - speed - surface A:
surface
(Question)
Answer the following question given this paragraph: The sun and other stars produce light because they are so hot. They glow with light due to their extremely high temperatures. This way of producing light is called incandescence . Some objects produce light without becoming very hot. They generate light through chemical reactions or other processes. Producing light without heat is called luminescence . Objects that produce light by luminescence are said to be luminous. Luminescence, in turn, can occur in different ways:. Q: Producing light without heat is called what? Choices: - osmosis - thermoluminescence - bioluminescence - luminescence A:
(Answer)
luminescence
Ques: Answer the following question given this paragraph: Absorptive protists absorb food molecules across their cell membranes. This occurs by diffusion. These protists are important decomposers. Q: Which process helps absorptive protists absorb food molecules across their cell membranes? Choices: - activation - secretion - metabolism - diffusion A:
Ans: diffusion
(Q).
Answer the following question given this paragraph: 4.2 Prokaryotic Cells Prokaryotes are predominantly single-celled organisms of the domains Bacteria and Archaea. All prokaryotes have plasma membranes, cytoplasm, ribosomes, and DNA that is not membrane-bound. Most have peptidoglycan cell walls and many have polysaccharide capsules. Prokaryotic cells range in diameter from 0.1 to 5.0 m. As a cell increases in size, its surface area-to-volume ratio decreases. If the cell grows too large, the plasma membrane will not have sufficient surface area to support the rate of diffusion required for the increased volume. Q: As the prokaryotic cell size increases, what happens to its surface area-to-volume ratio? Choices: - stagnates - halts - increases - decreases A:
(A).
decreases
Ques:Answer the following question given this paragraph: Some regions of the electron cloud are denser than others. The denser regions are areas where electrons are most likely to be. These regions are called orbitals . Each orbital has a maximum of just two electrons. Different energy levels in the cloud have different numbers of orbitals. Therefore, different energy levels have different maximum numbers of electrons. Table below lists the number of orbitals and electrons for the first four energy levels. Energy levels farther from the nucleus have more orbitals. Therefore, these levels can hold more electrons. Q: The denser regions of the electron cloud are called what? Choices: - cores - lattices - isotopes - orbitals A:

Ans:orbitals
Answer the following question given this paragraph: Figure 32.22 There are four main types of fruits. Simple fruits, such as these nuts, are derived from a single ovary. Aggregate fruits, like raspberries, form from many carpels that fuse together. Multiple fruits, such as pineapple, form from a cluster of flowers called an inflorescence. Accessory fruit, like the apple, are formed from a part of the plant other than the ovary. (credit "nuts": modification of work by Petr Kratochvil; credit "raspberries": modification of work by Cory Zanker; credit "pineapple": modification of work by Howie Le; credit "apple": modification of work by Paolo Neo). Q: What do aggregate fruits like raspberries form from? Choices: - germinoles fused together - follicles fused together - chloroplast fused together - carpels fused together A:
carpels fused together