Answer the following question given this paragraph: Sponges have an internal skeleton that gives them support and protection. An internal skeleton is called an endoskeleton . A sponge endoskeleton consists of short, sharp rods called spicules (see Figure below ). Spicules are made of silica, calcium carbonate, or spongin, a tough protein. They grow from specialized cells in the body of the sponge. Q: Sponges possess an internal skeleton called what? Choices: - hydrostatic skeleton - fluid skeleton - exoskelton - endoskeleton A:
endoskeleton
(Question)
Answer the following question given this paragraph: Explosive waste is likely to explode. The risk of explosion may be greater if the waste is mixed with other substances. Q: What type of waste is likely to explode? Choices: - liquid waste - mesh waste - solid waste - explosive waste A:
(Answer)
explosive waste
Ques: Answer the following question given this paragraph: The halogen group is quite diverse. It includes elements that occur in three different states of matter at room temperature. Fluorine and chlorine are gases, bromine is a liquid, and iodine and astatine are solids. Halogens also vary in color, as you can see in the Figure below . Fluorine and chlorine are green, bromine is red, and iodine and astatine are nearly black. Like other nonmetals, halogens cannot conduct electricity or heat. Compared with most other elements, halogens have relatively low melting and boiling points. You can watch a lab demonstration of the melting and boiling points of halogens at this URL: http://www. youtube. com/watch?v=yP0U5rGWqdg . Q: What makes the halogen group so diverse? Choices: - contains alloys - a single state of matter - bonds easily - three different states of matter A:
Ans: three different states of matter
(Q).
Answer the following question given this paragraph: The Animal Kingdom is one of four kingdoms in the Eukarya Domain. The Animal Kingdom, in turn, is divided into almost 40 modern phyla. The Animal Kingdom can also be divided into two basic groups: invertebrates and vertebrates. Most animal species are invertebrates, which lack a backbone. Q: The animal kingdom can also be divided into two basic groups, what are they? Choices: - mammals and fish - aquatic and land - sponges and vertebrates - invertebrates and vertebrates A:
(A).
invertebrates and vertebrates
Ques:Answer the following question given this paragraph: Q: What are the sporophytes in ferns? Choices: - spores - leaves - cycles - leafy plants A:

Ans:leafy plants
Question: Answer the following question given this paragraph: In addition to these organs, the male reproductive system consists of a series of ducts and glands. Ducts include the vas deferens and ejaculatory ducts. They transport sperm from the epididymis to the urethra in the penis. Glands include the seminal vesicles and prostate gland . They secrete substances that become part of semen. Q: The vas deferens and ejaculatory ducts are part of what system? Choices: - female adaptive system - female reproductive system - male circulatory system - male reproductive system A:
Answer:
male reproductive system