BIOLOGY:CONCEPTS+INVEST.-CONNECT ACCESS
5th Edition
ISBN: 9781260542233
Author: Hoefnagels
Publisher: MCG
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Question
Chapter 15.2, Problem 3MC
Summary Introduction
To determine:
The two ways by which multicellular organisms might have originated.
Concept introduction:
The origin of multicellularity was a critical event in the origin of plants, fungi, and animals. The earliest multicellular organisms were red alga that appeared around 1.2 billion years ago.
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Chapter 15 Solutions
BIOLOGY:CONCEPTS+INVEST.-CONNECT ACCESS
Ch. 15.1 - How were conditions on Earth before life began...Ch. 15.1 - Prob. 2MCCh. 15.1 - Prob. 3MCCh. 15.1 - Prob. 4MCCh. 15.2 - How might the endoplasmic reticulum, nuclear...Ch. 15.2 - Prob. 2MCCh. 15.2 - Prob. 3MCCh. 15.3 - Prob. 1MCCh. 15.3 - What types of organisms flourished in the...Ch. 15.3 - How did Palaeozoic life diversify during the...
Ch. 15.3 - Prob. 4MCCh. 15.3 - Prob. 5MCCh. 15.3 - Prob. 6MCCh. 15.4 - Prob. 1MCCh. 15.4 - Prob. 2MCCh. 15.4 - Prob. 3MCCh. 15.4 - Prob. 4MCCh. 15.5 - Prob. 1MCCh. 15.5 - Prob. 2MCCh. 15 - Place the following events in Earths history in...Ch. 15 - Prob. 2MCQCh. 15 - Photosynthetic cells affected early Earth by a....Ch. 15 - Prob. 4MCQCh. 15 - Prob. 5MCQCh. 15 - Prob. 6MCQCh. 15 - Why was the Mesozoic era extinction significant to...Ch. 15 - Primates share all of the following...Ch. 15 - Prob. 9MCQCh. 15 - DNA evidence suggests that modern humans a. share...Ch. 15 - Explain how the origin of self-replicating...Ch. 15 - Prob. 2WIOCh. 15 - Review the structures of nucleic acids and...Ch. 15 - Prob. 4WIOCh. 15 - The amoeba Pelomyxa palustris is a single-celled...Ch. 15 - Prob. 6WIOCh. 15 - Distinguish among the terms primate, hominid,...Ch. 15 - Prob. 8WIOCh. 15 - Prob. 9WIOCh. 15 - Compare todays changing culture to biological...Ch. 15 - Prob. 11WIOCh. 15 - Prob. 1PITCh. 15 - Refer to figure 15.31 and the chapter content to...Ch. 15 - Refer to figure 15.31 and the chapter content to...
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- place the evolutionary steps that led to complex multicellularity in the order in which they thought to have occurred. a) The ability of cells to stick to each other b) Differential gene expression in cells c) The ability to communicate between cells d) The ability to move molecules by bulk flowarrow_forwardWhat is structure A? What Class does this organism belong to?arrow_forwardHow do simple multicellular organisms differ from complex multicellular organisms?arrow_forward
- 1.) Which of the following is not part of the early cell theory? A)All organisms are multicellular. B)All organisms are made of one or more cells. C)The cell is the fundamental unit of life. D)All cells come from preexisting cells. 2) Which of the following features is not common to all cells? A)cell wall B)ribosomes C)RNA and DNA D)cytoplasm 3) Which of the following does not describe an organism in the domain bacteria? A)Has a typical cell size of 10-100 micrometers. B)Is considered a prokaryote. C)Can use a flagella to swim in fluids. D)Contains a nucleod region.arrow_forwardWhich of the following applies the theory that cells are the basic unit of structure and functioning of an organism? A.) Cells undergo mitotic division B.) The flower produces seedpod C.) The red blood cell lack nuclei to carry more oxygen C.) The bats evolve a wing in ordee to flyarrow_forwarda) Do you think that most plant and animal cells are similar to does we observed today? b) Both atoms and the cells viewed today are small. Describe at least teo ways in which atoms and cells differ? c) What criteria can you use to distinguish between cells of the organisms belonging to different eukaryotic kingdoms (planta, animals , fungi)arrow_forward
- There are many different types of organisms, but all of them are composed of cells. Some are single-celled organisms while others are of many cells. Regardless of their cellularity, cells are small. Why it should be small? If there is a unicellular organism which has only one cell that is as big as a human, what are pros and cons?arrow_forwardwhat is the process whereby a neoblast can create the 30 or so cell types of the adult planarian? When does cell specification take place?arrow_forwardThe members of which two domains cannot be distinguished microscopically?arrow_forward
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