2nd Edition

ISBN: 9781947172517

Author: Matthew Douglas, Jung Choi, Mary Ann Clark

Publisher: OpenStax

Concept explainers

Life forms are the living entities or creatures present on Earth. They include all organisms ranging from tiny unicellular single-celled organisms such as bacteria, archaea, fungi, to giant organisms such as plants and animals.

What Makes an Organism

It refers to an individual that can exist on their own. It can carry out all the necessary functions which are important to lead a life. The organism can be simple and complex. A simple organism has a quite simple system to study and has evolved less, wh…

Carboxylic Acids and Their Derivatives

They are organic compounds containing carboxyl groups (-COOH). They may be aliphatic (RCOOH) or aromatic (Ar-COOH) depending upon whether the -COOH group is attached to the aliphatic chain (R) or aryl group (Ar) respectively. The general formula of these…

Characteristics Of Life

Biology is the science that investigates life. Defining life forms is not always easy. Every organism tends to exhibit certain features that distinguish living and non-living forms. Some significant characteristics of life include genetic code, evolution…

Textbook Question

Chapter 1, Problem 21CTQ

Consider the levels of organization of the biological world, and place each of these items in order from smallest level of organization to most encompassing: skin cell, elephant, water molecule, planet Earth, tropical rainforest, hydrogen atom, wolf pack, liver.

Expert Solution & Answer

Chapter 1 Solutions

Biology 2e

Ch. 1 - Figure 1.6 In the example below, the scientific...Ch. 1 - Figure 1.7 Decide if each of the following is an...Ch. 1 - Figure 1.16 Which of the following statements is...Ch. 1 - The first forms of life on Earth were plants...Ch. 1 - A suggested and testable explanation for an event...Ch. 1 - Which of the following sciences is not considered...Ch. 1 - The type of logical thinking that uses related...Ch. 1 - The process of helps to ensure that a scientist’s...Ch. 1 - A person notices that her houseplants that are...Ch. 1 - The smallest unit of biological structure that...

Ch. 1 - Viruses are not considered living because they...Ch. 1 - The presence of a membrane-enclosed nucleus is a...Ch. 1 - A group of individuals of the same species living...Ch. 1 - Which of the following sequences represents the...Ch. 1 - Where in a phylogenetic tree would you expect to...Ch. 1 - Although the scientific method is used by most of...Ch. 1 - Give an example of how applied science has had a...Ch. 1 - Name two topics that are likely to be studied by...Ch. 1 - Thinking about the topic of cancer, write a basic...Ch. 1 - Select two items that biologists agree are...Ch. 1 - Consider the levels of organization of the...Ch. 1 - You go for a long walk on a hot clay. Give an...Ch. 1 - Using examples, explain how biology can be studied...

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