8th Grade General Science Final

A group of organs working together to perform a certain function is called

• an organ system
• a tissue
• a cell
• an organism

Which structure’s main function is to produce food (sugar) in a plant?

• flower
• leaf
• stem
• roots

Tags

NGSS.MS-LS1-6

Which two human body systems work together to perform locomotion?

• muscular and skeletal systems
• respiratory and endocrine systems
• reproductive and circulatory systems
•  digestive and excretory systems

An organism that contains chloroplasts is able to produce food by the process of

• photosynthesis
• reproduction
• respiration
• digestion

Tags

NGSS.MS-LS1-6

NGSS.MS-LS2-3

Competition within a pack of wolves may increase if there is an increase in the

• amount of food available
• amount of oxygen available
• size of their population
• size of the area they inhabit

Tags

NGSS.MS-LS2-4

NGSS.MS-LS2-1

Which sequence lists the hereditary material found inside cells from the smallest unit to the largest unit?

• chromosome → gene → nucleus
• chromosome → nucleus → gene
• gene → nucleus → chromosome
• gene → chromosome → nucleus

A fox with thick fur would have a survival advantage over other foxes if

• there is more competition for food in the fox population
• the air temperature significantly decreases in winter
• a drought occurs, limiting the amount of water available
• a new disease appears that infects the foxes

Tags

NGSS.MS-LS4-4

NGSS.MS-LS1-5

Infants will often smile when they hear a parent’s voice. In this situation, the parent’s voice is considered

•  a stimulus
•  a response
• an adaptation
•  a resource

Which fertilization and development method is most typical of humans before birth occurs?

• external fertilization and external development
• external fertilization and internal development
• internal fertilization and external development
• internal fertilization and internal development

What is the main factor that prevents the growth of tropical plants in the northern part of the United States?

• predators
• pollutants
• overpopulation
• climate

Tags

NGSS.MS-LS1-5

NGSS.MS-ESS2-6