Answer the following question given this paragraph: Nonvascular plants lack seeds and vascular tissue. Q: Nonvascular plants lack vascular tissue and what? Choices: - cytoplasm - chlorophyll - cells - seeds A:
seeds
(Question)
Answer the following question given this paragraph: Sending humans to the seafloor is expensive and dangerous. Having to return humans safely to the surface limits what a mission can do. Remotely operated vehicles , or ROVs, allow scientists to study the deep without going to the seafloor. These small vehicles carry cameras and scientific instruments. ROVs were used to study inside the Titanic . This would have been far too dangerous for a manned sub to enter. Scientists control ROVs electronically with sophisticated operating systems. Q: What do scientists use to study the deep without going to the seafloor? Choices: - drill rigs - telescopes - ultrasound machines - remotely operated vehicles A:
(Answer)
remotely operated vehicles
Ques: Answer the following question given this paragraph: Introduction to Two-Dimensional Kinematics The arc of a basketball, the orbit of a satellite, a bicycle rounding a curve, a swimmer diving into a pool, blood gushing out of a wound, and a puppy chasing its tail are but a few examples of motions along curved paths. In fact, most motions in nature follow curved paths rather than straight lines. Motion along a curved path on a flat surface or a plane (such as that of a ball on a pool table or a skater on an ice rink) is two-dimensional, and thus described by two-dimensional kinematics. Motion not confined to a plane, such as a car following a winding mountain road, is described by three-dimensional kinematics. Both two- and threedimensional kinematics are simple extensions of the one-dimensional kinematics developed for straight-line motion in the previous chapter. This simple extension will allow us to apply physics to many more situations, and it will also yield unexpected insights about nature. Q: Most motions in nature follow ________ rather than straight lines? Choices: - vertical paths - sharp paths - horizontal paths - curved paths A:
Ans: curved paths
(Q).
Answer the following question given this paragraph: Roots are vascular organs that can penetrate soil and even rock. They absorb water and minerals from soil and carry them to leaves. They also anchor a plant in the soil. Roots evolved from rhizoids, which nonvascular plants had used for absorption. Q: What did roots evolve from that plants used for aborption? Choices: - seeds - leguminous - oomycetes - rhizoids A:
(A).
rhizoids
Ques:Answer the following question given this paragraph: Covalent bonds are bonds in which atoms share rather than transfer electrons. Compounds with covalent bonds are called covalent compounds. Q: What do you call compounds that have covalent bonds? Choices: - reflectivity compounds - valence compound - ions - covalent compounds A:

Ans:covalent compounds
Answer the following question given this paragraph: three building blocks of most matter. (The third is the neutron, which is neutral, carrying no charge. ) Other charge-carrying particles are observed in cosmic rays and nuclear decay, and are created in particle accelerators. All but the electron and proton survive only a short time and are quite rare by comparison. Q: What type of charge does a neutron have? Choices: - negative charge - positive charge - half charge - neutral or no charge A:
neutral or no charge