Advantages and Disadvantages of Multicellular Organisms Quiz and Flashcards

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Questions and Answers

What is a disadvantage of being a multicellular organism?

More efficient

Can lose body part(s) and still function

More specialized in what they do

Needs more food for energy (correct)

Which characteristic is advantageous for survival in terms of evolution?

Can lose body part(s) and still function

More cells working together (correct)

More specialized in what they do

More efficient

What does a multicellular organism need to find in order to mate?

No cell wall for movement

Needs more food for energy

A partner to mate with (correct)

More cells working together

Which system needs time to build and develop in a multicellular organism?

Needs more complex systems Signup and view all the answers

What is a function of the vascular system in multicellular organisms?

Bringing O2 in and getting rid of CO2 (Cardio) Signup and view all the answers

Why does a multicellular organism need to hunt for food?

Ned to find a partner to mate with Signup and view all the answers

What is the main purpose of taking vitamin supplements?

To provide the nutrients the body needs and eliminate excess through urine Signup and view all the answers

According to the information provided, what does cephalization refer to?

The distribution of sense organs near the mouth/face for quicker reactions Signup and view all the answers

What is the significance of bilateral and cephalization in organisms?

It enables rapid movement and distributed sense organs Signup and view all the answers

What characteristic is associated with organisms exhibiting radial symmetry?

They have sense organs distributed in a circle Signup and view all the answers

What is the purpose of a cladogram in biology?

To illustrate the relatedness and evolutionary milestones of organisms Signup and view all the answers

How many planes of movement are associated with bilateral symmetry and cephalization?

Two: left-right and anterior-posterior Signup and view all the answers

What is the main purpose of filter feeding in organisms?

To obtain food particles from water Signup and view all the answers

What is true about heterotrophic organisms?

They have no cell walls and need to find their own food Signup and view all the answers

What is the relationship between movement, intelligence, and nervous system function according to the text?

*Movement = intelligence, as it increases nervous system function for quicker reactions Signup and view all the answers

Study Notes

Multicellularity

A disadvantage of being a multicellular organism is that it needs to find a mate in order to reproduce.
A characteristic advantageous for survival in terms of evolution is being multicellular.

Development and Systems

A multicellular organism needs time to build and develop its systems, including the vascular system.
The vascular system in multicellular organisms is responsible for transporting nutrients and oxygen to cells and removing waste products.

Nutrition and Diet

A multicellular organism needs to hunt for food because it is a heterotrophic organism, unable to produce its own food.
The main purpose of taking vitamin supplements is to fill nutritional gaps in the diet.

Body Structure and Symmetry

Cephalization refers to the concentration of sensory organs in the head region of an organism.
Bilateral symmetry and cephalization are significant in organisms because they allow for more efficient movement and sensing of the environment.
Radial symmetry is characteristic of organisms such as starfish and sea urchins.

Phylogeny and Classification

The purpose of a cladogram in biology is to depict the evolutionary relationships between organisms.

Movement and Intelligence

Bilateral symmetry and cephalization are associated with two planes of movement.
Filter feeding is a mechanism used by some organisms to capture food particles from the surrounding environment.
There is a relationship between movement, intelligence, and nervous system function, as more complex movements require more developed nervous systems.

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Description

Explore the advantages and disadvantages of multicellular organisms, including their efficiency, specialization, and survival advantages. Understand how multicellularity contributes to the evolution and survival of animal species.