Answer the following question given this paragraph: Pollination by Bats In the tropics and deserts, bats are often the pollinators of nocturnal flowers such as agave, guava, and morning glory. The flowers are usually large and white or pale-colored; thus, they can be distinguished from the dark surroundings at night. The flowers have a strong, fruity, or musky fragrance and produce large amounts of nectar. They are naturally large and wide-mouthed to accommodate the head of the bat. As the bats seek the nectar, their faces and heads become covered with pollen, which is then transferred to the next flower. Q: What mammal is often a pollinator of nocturnal flowers? Choices: - sunbirds - hummingbirds - rabbits - bat A:
bat
Answer the following question given this paragraph: Eukaryotes evolved about 2 billion years ago. Unlike prokaryotes, eukaryotes have a cell nucleus. They have more structures and are better organized. Organelles within a eukaryote can perform certain functions. Some supply energy; some break down wastes. Eukaryotes were better able to live and so became the dominant life form. You can see an example of a eukaryotic cell below ( Figure below ). Q: Unlike prokaryotes, eukaryotes have a what? Choices: - flagellum - cell wall - mitochondria - cell nucleus A:
cell nucleus
Q: Answer the following question given this paragraph: 24.2 Production of Electromagnetic Waves Electromagnetic waves are created by oscillating charges (which radiate whenever accelerated) and have the same frequency as the oscillation. Since the electric and magnetic fields in most electromagnetic waves are perpendicular to the direction in which the wave moves, it is ordinarily a transverse wave. The strengths of the electric and magnetic parts of the wave are related by. Q: What are electromagnetic waves created by? Choices: - Static Charges - gravitational charges - particle charges - oscillating charges A:
A: oscillating charges
Question: Answer the following question given this paragraph: Summary Subatomic particles of the nucleus (protons and neutrons) are called nucleons. Anuclide is an atom with a particular number of protons and neutrons. An unstable nucleus that decays spontaneously is radioactive, and its emissions are collectively called radioactivity. Isotopes that emit radiation are calledradioisotopes. Each nucleon is attracted to other nucleons by the strong nuclear force. Stable nuclei generally have even numbers of both protons and neutrons and a neutron-to-proton ratio of at least 1. Nuclei that contain magic numbers of protons and neutrons are often especially stable. Superheavy elements, with atomic numbers near 126, may even be stable enough to exist in nature. Q: What are subatomic particles of the nucleus called? Choices: - baryons - cores - isotopes - nucleons A:
Answer: nucleons
*Question*
Answer the following question given this paragraph: The back of the eye is covered by a thin layer called the retina. This is where the image of the object normally forms. The retina consists of special light-sensing cells called rods and cones. Rods sense dim light. Cones sense different colors of light. Q: The light-sensing cells in the retina are called rods and what else? Choices: - sensor cells - stents - light cells - cones A:
**Answer**
cones
Q: Answer the following question given this paragraph: Static friction acts on objects when they are resting on a surface. For example, if you are walking on a sidewalk, there is static friction between your shoes and the concrete each time you put down your foot (see Figure below ). Without this static friction, your feet would slip out from under you, making it difficult to walk. Static friction also allows you to sit in a chair without sliding to the floor. Can you think of other examples of static friction?. Q: When you are walking on a sidewalk, what occurs between your shoes and the concrete each time you put down your foot? Choices: - movement - progress - grip - static friction A:
A: static friction