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Define Ecology

Study of interactions between organisms and their environment

What is the biosphere?

Entire planet

What is a biome?

Ecosystem & climate

What is an ecosystem?

Living and non-living things in an environment

What is a community?

All organisms in an area

What is a population?

Group of the same species

What is an organism?

A single living individual

Biotic factors definition and example

Living parts of the environment; e.g., plants, animals

Abiotic factors definition and example

Non-living parts of the environment; e.g., soil, air, temp

Photosynthesis formula

Carbon dioxide + water + light → oxygen + sugar

What are general traits of prokaryotes?

No nucleus, simple structure, example: bacteria

What are general traits of eukaryotes?

Have nucleus and organelles, example: plant/animal cells

What does the smooth ER do?

Makes lipids and detoxifies substances

What does the rough ER do?

Has ribosomes; makes proteins

What does the mitochondria do?

Produces energy (ATP) for the cell

What are chloroplasts for?

Photosynthesis in plant cells

What is a hypotonic solution?

Water moves into the cell; cell may burst (cytolysis)

What is a hypertonic solution?

Water moves out of the cell; cell may shrink (plasmolysis)

Photosynthesis products

Oxygen and glucose

Photosynthesis reactants

Carbon dioxide, water, and light

What happens in prophase?

Chromosomes coil, nuclear membrane breaks down

What happens in metaphase?

Chromosomes line up in the middle

What happens in anaphase?

Sister chromatids separate and move to poles

What happens in telophase?

Nuclear membrane reforms, DNA uncoils

How many daughter cells does meiosis create?

4

Are meiosis cells haploid or diploid?

Haploid

What is crossing over?

Exchange of genetic material during meiosis

What are autosomes?

First 22 pairs of chromosomes

What is a tumor?

Mass of rapidly dividing cells

What is cell differentiation?

Cells become specialized in function

Darwin's contribution to evolution

Proposed natural selection as mechanism for evolution

Lamarck's idea

Believed traits acquired during life could be passed to offspring

Malthus' idea

Population grows faster than resources; leads to competition

Hutton and Lyell's contribution

Earth changes slowly over time

What is an adaptation?

An inherited trait that helps an organism survive

What is artificial selection?

Humans breeding organisms for specific traits

What is camouflage?

Organism blends into surroundings

What is mimicry?

Organism copies the appearance of another

What is directional selection?

Favors one extreme trait

What is disruptive selection?

Favors both extreme traits

Explain: Define Ecology

Study of interactions between organisms and their environment

Describe define ecology

Study of interactions between organisms and their environment

Explain: What is the biosphere?

Entire planet

Describe the biosphere?

Entire planet

Explain: What is a biome?

Ecosystem & climate

Describe a biome?

Ecosystem & climate

Explain: What is an ecosystem?

Living and non-living things in an environment

Describe an ecosystem?

Living and non-living things in an environment

Explain: What is a community?

All organisms in an area

Describe a community?

All organisms in an area

Explain: What is a population?

Group of the same species

Describe a population?

Group of the same species

Explain: What is an organism?

A single living individual

Describe an organism?

A single living individual

Explain: What is a hypotonic solution?

Water moves into the cell; cell may burst (cytolysis)

Describe a hypotonic solution?

Water moves into the cell; cell may burst (cytolysis)

Explain: What is a hypertonic solution?

Water moves out of the cell; cell may shrink (plasmolysis)

Describe a hypertonic solution?

Water moves out of the cell; cell may shrink (plasmolysis)

What occurs during prophase??

Chromosomes coil, nuclear membrane breaks down

What occurs during metaphase??

Chromosomes line up in the middle

What occurs during anaphase??

Sister chromatids separate and move to poles

What occurs during telophase??

Nuclear membrane reforms, DNA uncoils

Explain: What is crossing over?

Exchange of genetic material during meiosis

Describe crossing over?

Exchange of genetic material during meiosis

Explain: What is a tumor?

Mass of rapidly dividing cells

Describe a tumor?

Mass of rapidly dividing cells

Explain: What is cell differentiation?

Cells become specialized in function

Describe cell differentiation?

Cells become specialized in function

What did Darwin's believe?

Proposed natural selection as mechanism for evolution

What did Lamarck's believe?

Believed traits acquired during life could be passed to offspring

What did Malthus' believe?

Population grows faster than resources; leads to competition

What did Hutton believe?

Earth changes slowly over time

Explain: What is an adaptation?

An inherited trait that helps an organism survive

Describe an adaptation?

An inherited trait that helps an organism survive

Explain: What is artificial selection?

Humans breeding organisms for specific traits

Describe artificial selection?

Humans breeding organisms for specific traits

Explain: What is camouflage?

Organism blends into surroundings

Describe camouflage?

Organism blends into surroundings

Explain: What is mimicry?

Organism copies the appearance of another

Describe mimicry?

Organism copies the appearance of another

Explain: What is directional selection?

Favors one extreme trait

Describe directional selection?

Favors one extreme trait

Explain: What is disruptive selection?

Favors both extreme traits

Describe disruptive selection?

Favors both extreme traits

Explain: Define Ecology

Study of interactions between organisms and their environment

Describe define ecology

Study of interactions between organisms and their environment

Explain: What is the biosphere?

Entire planet

Describe the biosphere?

Entire planet

Explain: What is a biome?

Ecosystem & climate

Describe a biome?

Ecosystem & climate

Explain: What is an ecosystem?

Living and non-living things in an environment

Describe an ecosystem?

Living and non-living things in an environment

Explain: What is a community?

All organisms in an area

Describe a community?

All organisms in an area

Explain: What is a population?

Group of the same species

Describe a population?

Group of the same species

Explain: What is an organism?

A single living individual

Describe an organism?

A single living individual

Explain: What is a hypotonic solution?

Water moves into the cell; cell may burst (cytolysis)

Describe a hypotonic solution?

Water moves into the cell; cell may burst (cytolysis)