Answer the following question given this paragraph: Chapter 26 1 Figure 26.8 B. The diploid zygote forms after the pollen tube has finished forming, so that the male generative nuclei can fuse with the female gametophyte. 3 D 5 C 7 A 9 B 11 C 13 B 15 C 17 D 19 Both pollination and herbivory contributed to diversity, with plants needing to attract some insects and repel others. 21 The trees are adapted to arid weather, and do not lose as much water due to transpiration as non-conifers. 23 The resemblance between cycads and palm trees is only superficial. Cycads are gymnosperms and do not bear flowers or fruit. Cycads produce cones: large, female cones that produce naked seeds, and smaller male cones on separate plants. Palms do not. 25 Using animal pollinators promotes cross-pollination and increases genetic diversity. The odds that the pollen will reach another flower are greatly increased compared with the randomness of wind pollination. Q: When does the diploid zygote form? Choices: - never - before the pollen tube - before the haploid zygote - after the pollen tube A:
after the pollen tube
Answer the following question given this paragraph: Macrophages are large WBCs that can also swallow and destroy old and dying cells, bacteria, or viruses. Below, a macrophage is attacking and swallowing two particles, possibly disease-causing pathogens ( Figure below ). Macrophages also release chemical messages that cause the number of WBCs to increase. Q: Macrophages, which can swallow and destroy old and dying cells, bacteria, or viruses, are large types of what cells? Choices: - red blood cells - white brain cells - dendritic cells - white blood cells A:
white blood cells
Q: Answer the following question given this paragraph: Many organisms form spores for reproduction. Some prokaryotes form spores for survival. Called endospores , they form inside prokaryotic cells when they are under stress. The stress could be UV radiation, high temperatures, or harsh chemicals. Endospores enclose the DNA and help it survive under conditions that may kill the cell. Endospores are commonly found in soil and water. They may survive for long periods of time. Q: Some prokaryotes form spores for survival called what? Choices: - buds - rhizomes - gymnosperms - endospores A:
A: endospores
Question: Answer the following question given this paragraph: Q: Psip can be positive or negative relative to what kind of pressure? Choices: - inertia - magnetic - manometric - atmospheric A:
Answer: atmospheric
*Question*
Answer the following question given this paragraph: In a red supergiant, fusion does not stop. Lighter atoms fuse into heavier atoms. Eventually iron atoms form. Q: Atoms of what element ultimately form in a red supergiant? Choices: - gold - steel - coal - iron A:
**Answer**
iron
Q: Answer the following question given this paragraph: AIDS is an infectious disease of the immune system caused by a virus. Some diseases of the immune system are noninfectious. They include autoimmune diseases and allergies. Q: Aids is an infectious disease of which system? Choices: - muscular - digestion - endocrine - immune A:
A: immune