You are presented with the question "what do male dogs use in their urine to mark their territory?" and the following answer choices: - feces - layers of fat - natural aphrodisiacs - food - Something coming from a gland - Chemical energy - cats - hydrocarbons Now knowing that male dogs use pheromones in urine to mark their territory and pheromones are natural aphrodisiacs, choose the best answer.
natural aphrodisiacs
You are presented with the question "What have meristems for growth?" and the following answer choices: - plants - humans - tortoises - animals - Conifers - Flowers - moss - cacti Now knowing that roots have primary and secondary meristems for growth in length and width and most plants have roots , choose the best answer.
plants
Q: You are presented with the question "the Earth being tilted on its rotating axis causes what?" and the following answer choices: - Weather - Winter - rest - spring - wind - Night and Day - Gravity - rainfall Now knowing that the Earth being tilted on its rotating axis causes seasons and spring, summer,autumn and winter are seasons, choose the best answer.
A: Winter
Question: You are presented with the question "What carries something that covers organisms to make fossils?" and the following answer choices: - squids - Streams - streams. - coral reef - coral - amoebae - bamboo - Nematoda Now knowing that fossils are formed when layers of sediment cover the remains of organisms over time and all streams carry sediment , choose the best answer.
Answer: Streams
*Question*
You are presented with the question "Animals communicate through what?" and the following answer choices: - chemicals - A wave - fur - nerves - A vacuum - A telephone - A particle - Movement Now knowing that animals can communicate with sounds, chemicals, or visual cues and perception of sound Sound is a wave, choose the best answer.
**Answer**
A wave
Q: You are presented with the question "Objects that are a few nanometers in size can be seen only with:" and the following answer choices: - an electron microscope - refraction of light - matter vibrating - ultrasound - The bending of a ray of light - slight magnification - flashlights - lens Now knowing that viruses are so small that they can be seen only with an electron microscope and viruses Viruses are very small, a few nanometers in size, choose the best answer.
A: an electron microscope