Answer the following question given this paragraph: Gymnosperms are vascular plants that produce seeds in cones. Examples include conifers such as pine and spruce trees. The gymnosperm life cycle has a very dominant sporophyte generation. Both gametophytes and the next generation's new sporophytes develop on the sporophyte parent plant. Figure below is a diagram of a gymnosperm life cycle. Q: What are vascular plants that produce seeds in cones called? Choices: - evergreen - deciduous - angiosperms - gymnosperms A:
gymnosperms
(Question)
Answer the following question given this paragraph: inviability because the hybrid organisms simply are not viable. In another postzygotic situation, reproduction leads to the birth and growth of a hybrid that is sterile and unable to reproduce offspring of their own; this is called hybrid sterility. Habitat Influence on Speciation Sympatric speciation may also take place in ways other than polyploidy. For example, consider a species of fish that lives in a lake. As the population grows, competition for food also grows. Under pressure to find food, suppose that a group of these fish had the genetic flexibility to discover and feed off another resource that was unused by the other fish. What if this new food source was found at a different depth of the lake? Over time, those feeding on the second food source would interact more with each other than the other fish; therefore, they would breed together as well. Offspring of these fish would likely behave as their parents: feeding and living in the same area and keeping separate from the original population. If this group of fish continued to remain separate from the first population, eventually sympatric speciation might occur as more genetic differences accumulated between them. This scenario does play out in nature, as do others that lead to reproductive isolation. One such place is Lake Victoria in Africa, famous for its sympatric speciation of cichlid fish. Researchers have found hundreds of sympatric speciation events in these fish, which have not only happened in great number, but also over a short period of time. Figure 18.21 shows this type of speciation among a cichlid fish population in Nicaragua. In this locale, two types of cichlids live in the same geographic location but have come to have different morphologies that allow them to eat various food sources. Q: As the population grows, competition for food does what? Choices: - stays the same - decreases - stagnates - grows A:
(Answer)
grows
Ques: Answer the following question given this paragraph: Waves interact with matter in several ways. The interactions occur when waves pass from one medium to another. The types of interactions are reflection, refraction, and diffraction. Each type of interaction is described in detail below. You can see animations of the three types at this URL: http://www. acoustics. salford. ac. uk/schools/teacher/lesson3/flash/whiteboardcomplete. swf . Q: Reflection, refraction, and diffraction are examples of what type of interaction? Choices: - winds - Oscillations - Currents - waves A:
Ans: waves
(Q).
Answer the following question given this paragraph: The germ theory proposes that microorganisms are the cause of many diseases. Q: What theory proposes that microorganisms are the cause of many diseases? Choices: - malignant theory - evolution theory - mutated theory - germ theory A:
(A).
germ theory
Ques:Answer the following question given this paragraph: Prokaryotic cells have a cell wall outside their plasma membrane. Q: Prokaryotic cells have a cell wall located outside of the __________? Choices: - epidermis - chloroplasts - chromosomes - plasma membrane A:

Ans:plasma membrane
Answer the following question given this paragraph: The Fujita scale measures tornado intensity based on wind speed and damage. Q: The fujita scale measures the intensity of what weather event, based on wind speed and damage? Choices: - sandstorm - wind gust - blizzard - tornado A:
tornado