BIOA01H3 Chapter 4: Chapter 4

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1 Dec 2010

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N all life on earth consists of organized cells: takes energy just because of the fact that they are organized. N all organisms contain heritable genetic information for reproduction. If the organism is able to survive, they are able to reproduce and pass down its genetic information: ultimately the mandate from a biological standpoint is to live long enough to reproduce. N all organisms show growth and development: ex. N all organisms respond environmental stimuli: ex. Some plants excrete chemicals to keep away pests, organisms and illuminate practises: ex. N all organisms maintain homeostasis: these organisms that are constructed of cells are capable of controlling and regulating their internal environment to optimize the functioning of the cell, enzymes, chemicals, etc, ex. Extremophiles j lives in extreme temperatures, ph levels, etc. N organisms are capable of adapting to their environmental changes j evolution through natural selection: this can ensure survival and reproduction.

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Please Help. Thank you very much.

Ecology is the study of how organisms interact with their environment. Thus, a central question in ecology concerns how organisms respond to environmental variation. The flip side of this question is to ask whether the variation in characteristics of organisms is the result of variation in features of the environment. This variation can occur in space or through time.

1. Make a list of all the environmental variables that you can think of that are likely to be important to organisms. Think about plants and microbes as well as animals.

1A. One environmental change of great concern to us is climate change, specifically the prospect of human-caused global warming, a topic to which we will return. How do organisms respond to this spatial and temporal variability in the environment?

Q1:Match the characteristic distinguishing living systems with its association/description below:

-Program

-Improvisation

-Compartmentalization

-Energy

-Regeneration

-Adaptability

-Seclusion

1)Maintenance of pathways and metabolic processes operate in isolation even though they are in the same compartment.

2)Breaking down products in order to synthesize new ones

3)Continuously replacement of damaged molecules

4)Organized plan for formation of organism

5)As the environment changes, the populations of organisms can change their programs to promote survival of organization

6)Creating conditions separate from environment, so chemistry can take place in specialized places or even specialized cells

7)Individual organisms can modify pathways/behaviors in response to changes in environment

Q2: Genomics is concerned with the location, expression, and function of individual genes, while genetics is concerns itself with analysis of the totality of genetic information.

periwinklewallaby496

Please match the branch of biology with the correct definition.

A. immunology

B. physiology

C. genetics

D. toxicology

E. genomics

F. microbiology

G. anatomy

H. endocrinology

1. _________ is the study of glands that secrete hormones into the circulatory system and their diseases.

2. _________ is the study of the structure and functions of the immune system in health and disease states.

_________ is the branch of biology that studies the structure of organisms, including their systems, organs, and tissues.

4. _________is the study of genes and their roles in inheritance.

5. _________ is the study of the normal functions of living organisms and their parts.

6. _________is the study of microscopic organisms such as bacteria, viruses, fungi, and parasites.

7. _________ is the study of the entire set of genes and genetic information of an organism, including interactions of those genes with each other & the environment.

8. _________is the study of the interaction between chemicals and living organisms.

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BIOA01H3 Chapter 4: Chapter 4

BIOA01H3 Full Course Notes

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