Answer the following question given this paragraph: Sharks have well-developed sense organs that aid them in locating prey, including a keen sense of smell and electroreception, with the latter perhaps the most sensitive of any animal. Organs called ampullae of Lorenzini allow sharks to detect the electromagnetic fields that are produced by all living things, including their prey. Electroreception has only been observed in aquatic or amphibious animals. Sharks, together with most fishes and aquatic and larval amphibians, also have a sense organ called the lateral line, which is used to detect movement and vibration in the surrounding water, and is often considered homologous to "hearing" in terrestrial vertebrates. The lateral line is visible as a darker stripe that runs along the length of a fish's body. Sharks reproduce sexually, and eggs are fertilized internally. Most species are ovoviviparous: The fertilized egg is retained in the oviduct of the mother's body and the embryo is nourished by the egg yolk. The eggs hatch in the uterus, and young are born alive and fully functional. Some species of sharks are oviparous: They lay eggs that hatch outside of the mother's body. Embryos are protected by a shark egg case or "mermaid's purse" (Figure 29.12) that has the consistency of leather. The shark egg case has tentacles that snag in seaweed and give the newborn shark cover. A few species of sharks are viviparous: The young develop within the mother's body and she gives live birth. Q: What organ do most fish have that is used to detect movement and vibration in the surrounding water? Choices: - nares - operculum - eye - lateral line A:
lateral line
(Question)
Answer the following question given this paragraph: Seedless vascular plants include plants such as ferns. You can see a fern in Figure below . Ferns reproduce with spores instead of seeds. The black dots on the back of the fern leaf in Figure below are spores. Q: What do ferns use in place of seeds to reproduce? Choices: - glands - atoms - toxins - spores A:
(Answer)
spores
Ques: Answer the following question given this paragraph: Mating refers to the union of a male and female of the same species for reproduction. The relationship between mates varies by species. Adults may have many mates, or they may mate with just one individual. Mates may stay together only while mating, for an entire breeding season, or even for life. Q: What term refers to the union of a male and female of the same species for reproduction? Choices: - evolution - life cycle - behavior - mating A:
Ans: mating
(Q).
Answer the following question given this paragraph: Some solids are not crystals. Glass, or the rock obsidian, are solid. However, they are not crystals. In a crystal , the atoms are arranged in a pattern. This pattern is regular and it repeats. The image below shows how the atoms are arranged in halite (table salt) ( Figure below ). Halite contains atoms of sodium and chlorine in a pattern. Notice that the pattern goes in all three dimensions. Q: What type of solid has atoms arranged in a repeating pattern? Choices: - ions - metals - hydrocarbons - crystals A:
(A).
crystals
Ques:Answer the following question given this paragraph: In binary fission, a cell splits in two. First, the large circular chromosome is copied. Then the cell divides to form two new daughter cells. Each has a copy of the parent cell's chromosome. Q: In binary fission how many times does a cell split? Choices: - four - one - six - two A:

Ans:two
Question: Answer the following question given this paragraph: In sexually reproducing organisms, parents pass a copy of each type of chromosome to their offspring by producing gametes. When gametes are fertilized and form offspring, each has a unique combination of chromosomes and genes from both parents. The inherited gene combination determines the characteristics of the offspring. Q: In sexually reproducing organisms, parents pass a copy of each type of what to their offspring by producing gametes? Choices: - molecule - genome - phenotype - chromosome A:
Answer:
chromosome