silverrabbit845

Out of the following which factor is responsible for the formation of tides in the ocean?

(a)  Due to the rotation of the earth.

(b)  Due to the gravitational force of the earth.

(c)   Due to the gravitational pull of the moon.

(d)   Due to the difference in the gravity pull of the moon across the earth.

Why do tides occur?

What is it about the moon's gravitational pull that causes tides?

When does gravitational lensing occur?

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Fill in the blank: "Each attribute of an entity becomes a(n) ________ of a table."

6. All plants produce __________ by mitosis and __________ by meiosis. A)spores, gametes B)gametes, gametes C)gametes, spores D)spores, spores E)spores, gametes and spores 7. In a heterosporous life cycle, the microspore develops into the _____ gametophyte, while the megaspore develops into the ______ gametophyte. A)female, male B)male, female C)diploid, haploid D)haploid, diploid E)None of the above 8. Asexual reproduction in liverworts is accomplished by A)gametophytes. B)spores. C)gemmae. D)tracheids. 9. You are walking along a roadside and find a plant with the following characteristics: very thin waxy cuticle, stomata, simple leaves in whorls around a central stem, independent sporophyte and gametophyte, sporangia in strobili. This plant is most likely a member of which of the following phyla? A)Bryophyta B)Sphenophyta C)Pterophyta D)Lycophyta 10. Plants differ from algae in that only plants A)are photosynthetic. B)are multicellular. C)possess chlorophyll. D)have multicellular embryos protected by the parent. E)are eukaryotic. 11. Which statement about the alternation of generations in plants is not true? A) The plant life cycle is characterized by diploid and haploid forms. B)Meiosis occurs in sporangia. C)Gametes are always produced by meiosis. D)The zygote is the first cell of the sporophyte generation. E)The gametophyte and sporophyte differ genetically. 12. The most abundant gymnosperm phylum today is A) Cycadophyta. B) Ginkgophyta. C) Gnetophyta. D) Coniferophyta. E) None of the above 13. Coniferous gymnosperms, such as pines, depend primarily on __________ for pollination; thus, the plants produce large quantities of pollen that disperse over large areas during the spring. A) insects B) birds C) water D) wind E) mammals 14. An evolutionary trend that runs throughout the plant kingdom is that the sporophyte generation ___ and is more independent of the gametophyte, and the gametophyte generation _____ and is more dependent upon the sporophyte. A) becomes smaller, becomes smaller B) becomes larger, becomes smaller C) becomes smaller, becomes larger D) becomes larger, becomes larger E) does not change in size, becomes larger 15. Angiosperms differ from other plants in that two male gametes, contained within a single male gametophyte, participate in fertilization events. One sperm nucleus combines with the egg to produce a diploid zygote. The other sperm nucleus combines with two other haploid nuclei of the female gametophyte. This process is called A) biparental inheritance. B) multiple paternity. C) double fertilization. D) biparental fertilization. E) multiple fertilization. 16. The reproductive organ of angiosperms is the A)sporangium. B) flower. C) cone. D) archegonium. E) sporophyte. 17. The prominent components of Earth's modern land flora in most areas are A) angiosperms. B) gymnosperms. C) ferns. D) bryophytes. E) club mosses. 18. Flowers with insect pollination have showy A) petals. B) sepals. C) anthers. D) fruits 19. In angiosperms, pollen is transferred from the __________ to the __________. A) anther, style B) filament,ovary C) anther, stigma D) filament, ovary E) anther, ovule 20. The following events in the angiosperm life cycle occur in which order? I. A diploid zygote develops into an embryo that is packaged along with food into a seed. II. A pollen grain reaches the appropriate surface of a sporophyte. III. Double fertilization occurs. IV. A slender pollen tube is produced that elongates and digests its way through the sporophytic tissue toward the female gametophyte. A) I, II, III, IV B) II, IV, III, I C) II, I, IV, III D) IV, III, I, II E) III, I, IV, II . 21. Which of the following functions make seeds useful to plants? A) Seeds provide a mechanism for dispersal. B) Seeds protect the embryo. C) An embryo may remain dormant until optimum growth conditions are available. D) All of the above 22. Many angiosperms and animals have coevolved. What roles do animals play in the life cycle of plants? A) They act as pollinators. B) They assist in dispersal of seeds. C) They insure fertilization. D) All of the above 23. What is the significance of the fruit? A) It aids in dispersion of seeds. B) It protects seeds until they are mature. C) It attracts pollinators. D) a and b 24. Vascular tissue in angiosperms is highly developed. The purpose of this vascular tissue is to move A) water. B) food. C) nutrients. D) All of the above MATCHING A) chitin B) conidiospores C) heterotroph D) mycelium E) mycorrhiza 25. Body of a fungus 26. Produced during asexual reproduction in Ascomycetes 27. Nutritional mode of fungi 28. Envelopes plant roots 29. Component of fungi cell walls Matching A) Basidomycetes B) Deuteromycetes C) Green algae D) Penicillium E) Zygomycetes 30. No known sexual stage 31. Grown in culture to produce antibiotics 32. An example is Rhizopus stolonifer 33. Symbiont of a lichen 34. Club Fungi 35. In the sexual life cycles of fungi, ____________ usually occurs shortly after ____________. A) plasmogamy; karyogamy B) spore production; formation of a dikaryotic mycelium C) karyogamy; meiosis D) meiosis; fusion of haploid nuclei

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which of the following describes the last step in the perception process?

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please answer this question

Which one of the following bonds is the most sensitive to changes in market interest rates?

A. Zero-coupon, 25 year

B. 10% annual coupon, 3 year

C. Zero-coupon, 15 year

D. 5% annual coupon, 10 year