Where do minerals and water enter a plant? a. Through the bark b. Through the roots c. Through the stem d. Through the leaves

b. Through the roots

How long could you live without water? a. A few minutes b. A few weeks c. A few days d. A few hours

c. A few days

What property of water makes it vital to living things? A. it maintains homeostasis b. it is made of lipids and proteins c. it makes an organism more complex d. It dissolves more chemicals than any other substance

A(n) _____ is a trait that helps an organism live in it environment a. response b. reproduce c. adaptation d. migrate

c. adaptation

All living things get energy either directly or indirectly from a. animals b. sun c. plants d. water

b. sun

The building up or breaking down of chemical substances necessary for life is called a. ingestion b. respiration c. excretion d. metabolism

Organisms receive signals that causes them to react. What are these signals known as? A. responses b. signals c. movements d. stimulus

The mistaken idea that living things come from nonliving sources is known as a. stimuli b. homeostasis c. heterotrophs d. spontaneous generation

Organsims use ________to keep conditions like body temperature at a constant rate in spite of the conditons outside a. stimulus b. responses c. homeostasis d. energy

c. homeostasis

The process of breaking down food so that it can be used by living things is a. ingestion b. digestion c. respiration d. transport

b. digestion

In order to live all plants and animals need a. darkness b. helium c.food d. nitrogen

c. food

Which of the following do all living things need to survive? A. carbon dioxide B. water C. oxygen D. sunlight

b. water

The experiments of Redi and Pasteur helped to demonstrate a.Organisms do not arise from nonliving sources b.Organisms respond to stimulus c.Organisms are made of cells d.Organisms develop over time

a. Organisms do not arise from nonliving sources

A plant growing towards the light is an example of a.A stimulus b.Reproduction c.A response d.development

a. stimulus

What is the most abundant chemical found in cells? a.Carbohydrates b.Nucleic acids c.Proteins d.water

Organisms that are made of only one cell are called a. unicellular b. multicellular c. autotrophs d. heterotrophs

a. unicellular