65. which best describes the organisms in the plant kingdom?\n a. they are autotrophic and have eukaryotic…

65. which best describes the organisms in the plant kingdom?\n a. they are autotrophic and have eukaryotic cells\n b. they are multicellular and have cell walls\n c. they are multicellular and do not have cell walls\n d. they are always single - celled and produce their own food\n66. what reading would you expect to see on the second scale?\n a. the mass would be less than 300.23 g, because in a chemical reaction, some mass is lost\n b. the mass would be greater than 300.23g, because in this chemical reaction a solid is formed\n c. the mass would be the same after as it is before the chemical reaction\n d. you cannot determine\n67. which of the following would be considered a theory?\n a. nuclear energy should be widely used to produce energy\n b. a cold front will arrive in 6 hours and result in heavy rain\n c. the diversity of life is partly due to a result in genetic variation\n d. animal research is more effective in labs that are outdoors\n68. co₂, ch₄, and c₆h₁₂o₆ all contain carbon and are considered\n a. mixtures\n b. elements\n c. solutions\n d. compounds\n69. what energy transformation takes place when wood burns?\n a. heat to chemical\n b. light to heat\n c. chemical to electrical\n d. chemical to heat\n70. in the winter months the number of daylight hours decreases. what accounts for this change?\n a. the sun travels faster when the time between sunrise and sunset is shorter\n b. the sun is further away when the time between sunrise and sunset is shorter\n c. the size of the sun and its revolution around the solar system results in this difference in time\n d. the tilt of the earth and its revolution around the sun results in this difference in time\n71. a landslide leads to a buildup of material at the bottom of a hill due to\n a. erosion\n b. weathering\n c. deposition

65. which best describes the organisms in the plant kingdom?\n a. they are autotrophic and have eukaryotic cells\n b. they are multicellular and have cell walls\n c. they are multicellular and do not have cell walls\n d. they are always single - celled and produce their own food\n66. what reading would you expect to see on the second scale?\n a. the mass would be less than 300.23 g, because in a chemical reaction, some mass is lost\n b. the mass would be greater than 300.23g, because in this chemical reaction a solid is formed\n c. the mass would be the same after as it is before the chemical reaction\n d. you cannot determine\n67. which of the following would be considered a theory?\n a. nuclear energy should be widely used to produce energy\n b. a cold front will arrive in 6 hours and result in heavy rain\n c. the diversity of life is partly due to a result in genetic variation\n d. animal research is more effective in labs that are outdoors\n68. co₂, ch₄, and c₆h₁₂o₆ all contain carbon and are considered\n a. mixtures\n b. elements\n c. solutions\n d. compounds\n69. what energy transformation takes place when wood burns?\n a. heat to chemical\n b. light to heat\n c. chemical to electrical\n d. chemical to heat\n70. in the winter months the number of daylight hours decreases. what accounts for this change?\n a. the sun travels faster when the time between sunrise and sunset is shorter\n b. the sun is further away when the time between sunrise and sunset is shorter\n c. the size of the sun and its revolution around the solar system results in this difference in time\n d. the tilt of the earth and its revolution around the sun results in this difference in time\n71. a landslide leads to a buildup of material at the bottom of a hill due to\n a. erosion\n b. weathering\n c. deposition

Answer

Explanation:

65.

Plants are autotrophic (make their own food through photosynthesis) and have eukaryotic cells.

66.

According to the law of conservation of mass, mass is conserved in a chemical reaction. So the mass before and after is the same.

67.

A theory is a well - supported explanation of natural phenomena. The diversity of life being partly due to genetic variation is a theory.

68.

$CO_2$, $CH_4$, and $C_6H_{12}O_6$ are made up of different elements chemically combined, so they are compounds.

69.

When wood burns, chemical energy stored in the wood is converted to heat energy.

70.

The tilt of the Earth and its revolution around the sun cause the change in the number of daylight hours in different seasons.

71.

Deposition is the process by which material is laid down or built up. A landslide leading to a buildup of material at the bottom of a hill is due to deposition.

Answer:

  1. a. They are autotrophic and have eukaryotic cells
  2. c. The mass would be the same after as it is before the chemical reaction
  3. c. The diversity of life is partly due to a result in genetic variation
  4. d. Compounds
  5. d. Chemical to Heat
  6. d. The tilt of the Earth and its revolution around the sun results in this difference in time
  7. c. Deposition