ACP Test Review

Scientists think that life may have existed on Mars.  Which discovery on Mrs best supports this theory?

• 1. Polar ice caps 

• 1. Presence of wind 

• Presence of rocks

• Composition of the atmosphere

1. Tornadoes cause - 

• 1.  Coastal erosion

• 1. Climate change

• 1. Ecological damage

• 1. Plate faults 

1. Soil erosion is reduced by - 

• 1.  

     1. Blowing wings

• 1. 2. Heavy rainfall

• 1. 2. High-sloped hills

• 1. 2. Trees and plants

1. Primary succession occurs when pioneer species move into an area that has no plants. Which organisms are common pioneer species?

• 1. Conifer trees and tall grasses with roots that loosen the soil

• 1. Mosses and lichens that can grow on rocky surfaces

• Grasses and weeds that arrive as seeds carried by the wind and then germinate in rich soil

• 1. Vines and shrubs that help prevent the erosion of shallow soil

1. An ecosystem that is not sustainable can break down when a natural disaster occurs.  This can lead to organisms in the ecosystem either leaving the area or dying off. Increased biodiversity results in a more sustainable ecosystem because - 

• A greater number of plant species means  that there is less barren land

• 1. A greater variety of species present allows more organisms to adapt after changes occur 

• The transition area  between two ecosystems is narrower

• There are fewer species to be affected by environmental stresses

1. Some plants have stems that can hold water and have almost no leaves, which reduces water loss.  In which type of habitat would this be important?

• 1. Grassland 

• 1. Rainforest 

• 1. Swamp 

• 1. Desert

1. In order for an organism to move, which of the following energy transformations must happen in its cells?

• Sound energy is transformed into light energy is transformed into solar energy.

• Mechanical energy is transformed into solar energy.

• 1. Chemical energy is transformed into kinetic energy.

• 1. Light energy is transformed into chemical energy.

1. In multicellular organisms, cells are arranged into groups that work together to perform a common function. What are these groups called?

• 1. Systems

• 1. Bones

• 1. Tissues

• 1. Joints 

Where does the energy first come into an ecosystem?

• 1. Producers make energy. 

• 1. The sunlight provides energy to producers. 

• Consumers obtain energy from animals.

• 1. Scavengers obtain energy from dead plants. 

1. Wheat  was one of the first plants crops that humans domesticated, the wild form of wheat was eventually changed into a form more suited to human agricultural practice. Early farmers most likely used seeds only from wheat plants with —

• 1. Larger grains that could produce more food per plant

• 1. Taller stems that could block sunlight from weeds growing at ground level

• 1. Larger flowers that could be sold for additional income

• 1. Thinner stems that could endure heavy winds