WorksheetsScience Homework Assignment 01/21/2025
Total questions: 11
Worksheet time: 6mins
Select the food web image below that correctly shows the flow of matter in the Chesapeake Bay ecosystem.
Image A
Image B
Image C
Image D
What are the primary colors?
Red
Blue
Green
Yellow
Savannah and Dezmond are working on a school project about hydroponics. Which statement best explains why this is an example of biotechnology?
Hydroponics uses math to solve everyday problems.
It is a technique that improves one of the human senses.
Biology and engineering are connected to meet human food needs.
The success of hydroponics is used to measure the success of all growing plants.
After participating in the “Deer Detectives” activity at Camp Schmidt, Iketomiwa and Serena read about the negative effects deer overpopulation has in certain areas in Maryland. The state started programs to decrease the deer population and reduce the negative effects that deer are having on people and the environment. Some of the solutions to decrease the deer populations are shown in the table below. Which pair of solutions have an environmental impact?
Block and Barricade & Sprays
Move Deer Out of Area & Increased Hunting
Increased Hunting & Sprays
Block and Barricade & Move Deer Out of Area
Ohemaa claims that potatoes can be successfully grown without soil. Based on the data in the table, which two statements best support this claim?
The heaviest potatoes were grown in soil.
The greatest number of potatoes were grown in air.
Both soil and air produce plants with a greater total weight than water.
Both water and air produced the same average weight per potato.
Both soil and water produced the same average number of potatoes per plant.
The soil was weighed at the beginning and end of the investigation. The soil weight did not change. Which answer below identifies the best sources potato plants need for growth?
soil only
air and soil
soil and water
water and air
Which two statements below correctly describe the movement of matter in Devin’s ecosystem model?
The Sun provides matter that helps the algae grow.
Algae, bacteria, and shrimp release gases into the ecosystem.
Bacteria recycle waste materials in the ecosystem.
Shrimp receive nutrients from the bacteria.
During a science class, Courtney and Cameron are studying a diagram of a plant. What happens at “Step 4” in the picture with the arrow pointing towards and away from the leaf?
Sugar is entering the leaf; water vapor is exiting.
Carbon dioxide is entering the leaf; sugar and oxygen are exiting.
Carbon dioxide is entering the leaf; water vapor and oxygen are exiting.
Carbon dioxide and water vapor are entering the leaf, and oxygen is exiting.
During a science project, Tyler and Kaia learned about how decomposers help recycle nutrients. What else can decomposers break down to release nutrients into the soil?
rocks buried in the Earth
wastes released by living organisms
light energy from the Sun
water that falls from the sky
Which statement explains where the nutrients in the compost came from?
The materials that Savannah put into the compost bin used nutrients to make their own food.
The materials that Savannah put into the compost bin decomposed and released their nutrients.
The materials that Savannah put into the compost bin made nutrients out of sunlight and water.
The materials that Savannah put into the compost bin changed into living organisms that released nutrients.
Courtney and Cameron are studying a food web diagram that shows the movement of matter among plants, animals, and decomposers. Each organism gains matter in one of two ways: matter that is food, such as other organisms, or matter that is not food, such as air and water. Which statement is true about the movement of matter in a food web?
Some animals eat plants for food, and these plants change other types of matter into food.
Some animals eat other animals for food, and these animals change other types of matter into food.
All animals eat other animals for food, and all decomposers break down dead plants for food.
All animals eat plants for food, and all decomposers break down dead animals for food.
