WorksheetsCell Theory and Environmental Impact
Total questions: 27
Worksheet time: 14mins
Which TWO statements below are part of the cell theory? Select TWO.
All cells arise from pre-existing cells
Cells are the fundamental units of living organisms
All cells have a nucleus.
Which statement is a fundamental part of cell theory?
All cells have a nucleus
All living things are made up of cells
Which farming practice can help minimize pollution in nearby rivers and lakes?
using crops that require more pesticide
growing crops that need less fertilizer
use more fertilizer
Burning fossil fuels releases carbon dioxide, which increases ocean acidity and affects marine life. Which action would most likely help reduce the amount of carbon dioxide entering the ocean?
Driving gasoline-powered vehicles instead of using public transportation
Switching to renewable energy sources instead of using coal or oil
Grace drinks a glass of water and later needs to go to the bathroom. Which body system primarily removes liquid waste from her body?
Nervous system
Skeletal system
Excretory system
Integumentary system
Priya is playing soccer and accidentally falls, but her vital organs are protected from serious injury. Which system in her body provides structure and shields her internal organs from injury?
Excretory system
Nervous system
Skeletal system
Endocrine system
Aria accidentally touches a hot stove and quickly pulls her hand away. Which system controls and coordinates her body's response with electrical signals?
Circulatory system
Nervous system
Excretory system
Integumentary system
While playing outside, Mia accidentally scrapes her arm. Which system forms the outer barrier that protects her body?
Nervous system
Skeletal system
Endocrine system
Integumentary system
Grace accidentally touches a hot stove. The illustrated system sends signals between her brain and her hand, allowing her to quickly pull away. What is its main function?
Defend against infections entering the body
Circulate blood, nutrients, and gases throughout the body
Excrete hormones throughout the body
Send signals back and forth from brain to body
After drinking a sugary soda, Mason's body needs to regulate his blood sugar levels. Which system produces the hormone insulin to help with this?
Circulatory system
Integumentary system
Excretory system
Endocrine system
Abigail has a pet hydra in her aquarium. She notices that the hydra reproduces by budding. Which statement best describes the genetic relationship between the parent hydra and the new hydra?
Asexual reproduction; genetically identical
Sexual reproduction; genetically identical
Sexual reproduction; genetically different
Asexual reproduction; genetically different
Mason is observing strawberry plants in his garden. He notices that new plants are growing from runners extending out from the main plant, and these new plants are not forming from seeds. Which statement describes the type of reproduction Mason is seeing in his strawberry plants?
Offspring have mixed traits from two parents
Offspring result from two parent plants
Offspring form from runners without seeds
Offspring arise from seeds after pollination
Why do rat snake species in different habitats have distinct color patterns?
Each snake selects its color before hatching
Over many generations, populations evolved colors suited to their environments
Snakes instantly change color when they move habitats
Snakes migrate only to find new food sources
Which process allows plants like potatoes to produce new individuals without seeds?
Seed formation after fertilization
Genetic mixing from two parent plants
Asexual reproduction using tubers
Sexual reproduction through pollination
What is one way to decrease the amount of carbon dioxide released into the atmosphere from human activities?
Burning more coal for electricity
Using solar panels to generate energy
Why do some butterfly species have wing colors that match the flowers in their habitat?
Butterflies change color to match their favorite flower
Over generations, butterflies with matching colors survived better
Butterflies migrate to find new habitats with different flowers
Butterflies choose their wing color after hatching
What is one way to help reduce water pollution from agricultural activities?
Applying fertilizer before heavy rain
Using drip irrigation to minimize runoff
Which process results in offspring that are genetically identical to the parent?
Asexual reproduction
Sexual reproduction
Which system in the human body is responsible for transporting oxygen to cells?
Circulatory system
Integumentary system
Digestive system
Excretory system
Which process in plants uses sunlight to produce food?
Transpiration
Respiration
Photosynthesis
Fermentation
What is one way to help conserve water in agriculture?
Using drip irrigation systems
Flooding fields daily
Which system in the human body is responsible for pumping blood throughout the body?
Digestive system
Circulatory system
Excretory system
Nervous system
What is the main function of the roots in a plant?
To attract pollinators
To carry out photosynthesis
To absorb water and nutrients from the soil
To produce seeds
Which process in animals results in offspring with genetic variation?
Asexual reproduction
Sexual reproduction
Which organ system is primarily responsible for breaking down food and absorbing nutrients?
Respiratory system
Skeletal system
Digestive system
Excretory system
What is the main function of leaves in most plants?
Produce food through photosynthesis
Anchor the plant in the ground
Store seeds for reproduction
Absorb water from the soil
Which process in animals helps maintain a stable internal environment despite changes outside?
Photosynthesis
Fermentation
Homeostasis
Pollination
