Science OAA Review #1 Question Preview (ID: 14162)


8th Grade Science Review. TEACHERS: click here for quick copy question ID numbers.

River was walking down the hallway when her brother, Simon, jumped out and yelled “boo!” River reacted by jumping back quickly. Which organ systems are involved in reflex actions
a) A. Muscular and skeletal
b) B. Immune and respiratory
c) C. Endocrine and sexual
d) D. Nervous and digestive

Species A is a predator species, and species B is a prey species. What would be the first thing to happen if all of species A were removed from the ecosystem?
a) A predator species similar to species B will experience rapid population growth.
b) B. There will be a time of rapid population growth of species B.
c) C. The amount of disease in species B will increase to limit population
d) D. Other predator species will move into the ecosystem

Which of the following structures can be found in the plant cell but not in the animal cell?
a) vacuoles
b) endoplasmic reticulum
c) mitochondria
d) cell wall

Which of the following is a biotic resource in a region?
a) A. The average hours of sunlight
b) B. The quantity of freshwater
c) C. The number of plants
d) D. The quality of soil

Which of the following is an example of an inherited trait?
a) A. A dog begs at the dinner table.
b) B. A human speaks Spanish.
c) C. A chimpanzee fishes for bugs with a stick.
d) D. A bird grows red feathers.

. After a wildfire, many plant and insect species in the food web died out. One season later, however, several grasses grew back. What adaptation of these grasses most likely ga
a) A. Growing deep root systems
b) B. Having a higher plant height than neighboring species
c) C. Displaying bright flower colors to lure insects
d) D. Producing seeds that catch fire easily

Which cell structure carries out a function for a cell that is similar to the function that bark carries out for a tree?
a) cell wall
b) nucleus
c) mitochondria
d) chloroplast

What is the role of the mitochondrion in the cells?
a) A. It converts sunlight to energy
b) B. It controls all functions of the cell
c) C. It transports water throughout the cell
d) D. It breaks down sugar to release energy.

Which two plant cell structures are responsible for storing energy from sunlight and later releasing it for energy?
a) A. Chloroplast and mitochondrion
b) B. Mitochondrion and cell wall
c) C. Chloroplast and nucleus
d) D. Nucleus and cell wall

Bass tapeworms attach to the gills and intestines of bass fish. Theses worms survive by taking nutrients from the bass. What type of relationship is this?
a) predation
b) parasitism
c) mutualism
d) commensalism

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