Biology Test#1 Flashcards

Questions and Answers

"Collared lizard males exhibit a wide range of color variations." This is a(n) ______.

observation

Is it reasonable to conclude that female collared lizards prefer more brightly colored male lizards over dull-colored males?

Yes, this conclusion is supported by the data. (correct)

The data do not clearly indicate a preference one way or the other.

There is no way to conclude anything from this data.

No, this conclusion is not supported by the data.

A hypothesis is a(n) ______.

tentative explanation

A theory is ____.

a well-supported concept that has broad explanatory power Signup and view all the answers

DNA is composed of _____.

nucleotides Signup and view all the answers

Energy is incorporated into most ecosystems by _____.

plants Signup and view all the answers

Eukaryotic organisms that decompose dead organisms and absorb the nutrients are generally found in which kingdom?

Fungi Signup and view all the answers

Evolution by natural selection was formulated by _____.

Darwin Signup and view all the answers

How do hypotheses differ from theories?

Theories are more comprehensive than hypotheses. Signup and view all the answers

Humans are composed of ______ cells.

eukaryotic Signup and view all the answers

In which group can multicellular photosynthetic organisms be found?

Plantae Signup and view all the answers

Science itself is capable of ____.

determining the efficacy of a diet Signup and view all the answers

The DNA of a eukaryotic cell is found within the ______.

nucleus Signup and view all the answers

The best method for determining whether bean plants require sodium is to _____.

grow bean plants with and without sodium Signup and view all the answers

What accounts for the different breeds of domesticated dogs?

artificial selection Signup and view all the answers

What are the two main processes that ecosystems depend upon?

nutrient cycling and energy flow Signup and view all the answers

What is biology?

the study of life Signup and view all the answers

What is the difference between a tissue and an organ system?

An organ system includes tissues. Signup and view all the answers

What is the molecular commonality that is the basis of life's variety?

DNA Signup and view all the answers

Study Notes

Observations and Conclusions

Collared lizard males exhibit diverse color variations, representing an observation in biology.
Female collared lizards tend to prefer brightly colored males based on data support.

Hypotheses and Theories

A hypothesis serves as a tentative explanation and is not a definitive conclusion.
A theory represents a well-supported concept with broad explanatory power.

DNA Composition

DNA is made up of nucleotides, the fundamental units of genetic material.
Eukaryotic cell DNA resides within the nucleus.

Ecosystems and Energy

Most ecosystems incorporate energy predominantly through plants (Plantae).
Nutrient cycling and energy flow are essential processes in ecosystems.

Biological Classification

Multicellular photosynthetic organisms belong to the Plantae kingdom.
Organisms that decompose dead materials and absorb nutrients are classified in the Fungi kingdom.

Evolution and Natural Selection

Charles Darwin is credited with formulating the theory of evolution through natural selection.
Different dog breeds arise from artificial selection processes by humans.

Biology Study Focus

Biology is defined as the study of life in its diverse forms and processes.
The differences between tissues and organ systems highlight that organ systems comprise tissues.

Research Methodologies

Testing the requirement for sodium in bean plants is best achieved by growing plants both with and without sodium.

Fundamental Biological Concepts

The basis of life's variety at a molecular level stems from DNA.
The relationship between hypotheses and theories illustrates the comprehensive nature of theories compared to hypotheses.

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Description

Test your knowledge with these flashcards on collared lizards. This quiz focuses on color variations and preferences between male lizards. Enhance your understanding of observations and conclusions in biology.