Answer the following question given this paragraph: The organs that make up the cardiovascular system are the heart and a network of blood vessels that run throughout the body. The blood in the cardiovascular system is a liquid connective tissue. Figure below shows the heart and major vessels through which blood flows in the system. The heart is basically a pump that keeps blood moving through the blood vessels. Q: The heart and a network of blood vessels that run throughout the body make up what organ system? Choices: - lymphatic system - respiratory system - immune system - cardiovascular system A:
cardiovascular system
(Question)
Answer the following question given this paragraph: Q: How many protons do all atoms of a particular element have in their nuclei? Choices: - varying number - three - zero - same number A:
(Answer)
same number
Ques: Answer the following question given this paragraph: Some mollusks, such as oysters and scallops, are important food sources. Q: What type of creature is a scallop? Choices: - insect - vertabrate - algae - mollusk A:
Ans: mollusk
(Q).
Answer the following question given this paragraph: 30.3 Roots Roots help to anchor a plant, absorb water and minerals, and serve as storage sites for food. Taproots and fibrous roots are the two main types of root systems. In a taproot system, a main root grows vertically downward with a few lateral roots. Fibrous root systems arise at the base of the stem, where a cluster of roots forms a dense network that is shallower than a taproot. The growing root tip is protected by a root cap. The root tip has three main zones: a zone of cell division (cells are actively dividing), a zone of elongation (cells increase in length), and a zone of maturation (cells differentiate to form different kinds of cells). Root vascular tissue conducts water, minerals, and sugars. In some habitats, the roots of certain plants may be modified to form aerial roots or epiphytic roots. Q: What is the growing root tip protected by? Choices: - root flap - tip cap - root hinge - root cap A:
(A).
root cap
Ques:Answer the following question given this paragraph: The sparks from a steel grinder are molten iron. The iron reacts with oxygen to form iron(III) oxide. Q: When sparks from a steel grinder react with oxygen, what do they form? Choices: - rust - spontaneous combustion - steel oxide - iron oxide A:

Ans:iron oxide
Ques:Answer the following question given this paragraph: The water droplets of fog form from water vapor in the air. Fog disappears when the water droplets change back to water vapor. These changes are examples of changes of state. A change of state occurs whenever matter changes from one state to another. Common states of matter on Earth are solid, liquid, and gas. Matter may change back and forth between any two of these states. Q: Fog disappears when the water droplets change back to what? Choices: - cold vapor - ice vapor - solid vapor - water vapor A:

Ans:
water vapor