Answer the following question given this paragraph: The notochord lies between the dorsal nerve cord and the digestive tract. It provides stiffness to counterbalance the pull of muscles. Q: What rod provides stiffness to counterbalance the pull of muscles? Choices: - vertebrae - spinal cord - mesoderm - notochord A:
notochord
(Question)
Answer the following question given this paragraph: Think of a continent, like North America. Surrounding the continent are continental margins . Continental crust grades into oceanic crust at continental margins. Continental margins are under water. Almost all of North America sits on the North American Plate ( Figure below ). Both sides of the continent have continental margins, but each is very different. One continental margin of North America is an active margin. The other is a passive margin. Can you guess which is which?. Q: What does continental crust grade into at continental margins? Choices: - ocean floor - storm crust - remnants crust - oceanic crust A:
(Answer)
oceanic crust
Ques: Answer the following question given this paragraph: The theory of plate tectonics brings together continental drift and seafloor spreading. Q: What theory brings together continental drift and seafloor spreading? Choices: - theory of order tectonics - theory of water tectonics - theory of front tectonics - theory of plate tectonics A:
Ans: theory of plate tectonics
(Q).
Answer the following question given this paragraph: A cell is the smallest unit of a living thing. A living thing, like you, is called an organism. Thus, cells are the basic building blocks of all organisms. In multicellular organisms, several cells of one particular kind interconnect with each other and perform shared functions to form tissues (for example, muscle tissue, connective tissue, and nervous tissue), several tissues combine to form an organ (for example, stomach, heart, or brain), and several organs make up an organ system (such as the digestive system, circulatory system, or nervous system). Several systems functioning together form an organism (such as an elephant, for example). There are many types of cells, and all are grouped into one of two broad categories: prokaryotic and eukaryotic. Animal cells, plant cells, fungal cells, and protist cells are classified as eukaryotic, whereas bacteria and archaea cells are classified as prokaryotic. Before discussing the criteria for determining whether a cell is prokaryotic or eukaryotic, let us first examine how biologists study cells. Q: What is the smallest unit of a living thing? Choices: - electron - proton - organ - cell A:
(A).
cell
Ques:Answer the following question given this paragraph: Climate is the average weather of a place over many years. It includes average temperatures. It also includes average precipitation. The timing of precipitation is part of climate as well. What determines the climate of a place? Latitude is the main factor. A nearby ocean or mountain range can also play a role. Q: What term is used to describe the average weather of a place over many years? Choices: - atmosphere - landscape - meteorology - climate A:

Ans:climate
Ques: Answer the following question given this paragraph: Attached to the placenta is the amniotic sac , an enclosed membrane that surrounds and protects the fetus. It contains amniotic fluid , which consists of water and dissolved substances. The fluid allows the fetus to move freely until it grows to fill most of the available space. The fluid also cushions the fetus and helps protect it from injury. Q: What is the enclosed, fluid-filled membrane that surrounds and protects the fetus and is attached to the placenta? Choices: - epithelial sac - umbilical sac - womb - amniotic sac A:
Ans:
amniotic sac