Biology: The Unity and Diversity o...

15th Edition
Cecie Starr + 3 others
ISBN: 9781337408332



Biology: The Unity and Diversity o...

15th Edition
Cecie Starr + 3 others
ISBN: 9781337408332
Textbook Problem

A population of worms is growing exponentially in a compost heap. Thirty days ago there were 300 worms and now there are 600. How many worms will there be 30 days from now, assuming conditions remain constant and resources are unlimited?

  1. a. 1,200
  2. b. 1,600
  3. c. 3,200
  4. d. 6,400

Summary Introduction

Concept introduction: The rise in number of individuals in a population is called population growth. Exponential growth is a pattern of data that increases greater with the increase in time at a consistent rate. The population growth rate becomes more rapid in proportion to the growing total size of population. If the population grows abruptly, it attains the peak value forming a J-shaped curve.


Reasons for correct statements:

With the exponential growth, the population size increases at a consistent rate. In each interval, the number of individual added to the current population size is described using the following equation:


Where G is exponential growth.

r is the rate of growth with respect to time.

N is the number of individuals.

Here, the number of individuals is 600.

Thirty days before the number present is 300 and now, it is 600. Therefore, it is twice the original population. Therefore, the rate of change of population is 2.


Therefore, The number of worms present there in 30 days from then with assuming conditions remain constant and resources are unlimited are 1,200

Still sussing out bartleby?

Check out a sample textbook solution.

See a sample solution

The Solution to Your Study Problems

Bartleby provides explanations to thousands of textbook problems written by our experts, many with advanced degrees!

Get Started

Additional Science Solutions

Find more solutions based on key concepts

Show solutions add

Which two minerals are the major constituents of bone? a. calcium and zinc b. sodium and magnesium c. phosphoru...

Nutrition: Concepts and Controversies - Standalone book (MindTap Course List)

Unlike mass, weight is not a(n) ___ property. (1.4)

An Introduction to Physical Science

Match each organelle with its correct function.

Human Biology (MindTap Course List)

What evidence can you give that sunspots are magnetic?

Horizons: Exploring the Universe (MindTap Course List)

Outline the three stages in the extraction of energy from food.

Chemistry for Today: General, Organic, and Biochemistry

True or false? A son can inherit an X-linked recessive allele from his father.

Biology: The Unity and Diversity of Life (MindTap Course List)