Biology Chapter 13: Our Environment

<p>A top predator that hunts other carnivores. (D)</p> Signup and view all the answers

<p>1% (A)</p> Signup and view all the answers

<p>Energy is released as heat during metabolic processes. (B)</p> Signup and view all the answers

<p>10% (C)</p> Signup and view all the answers

<p>They facilitate the flow of energy from one component of the system to another. (B)</p> Signup and view all the answers

<p>They occupy different ecological niches. (D)</p> Signup and view all the answers

<p>Because energy is lost at each step, so very little remains after four trophic levels. (A)</p> Signup and view all the answers

<p>Energy can be recycled indefinitely within an ecosystem. (D)</p> Signup and view all the answers

<p>The number of individuals decreases as you move up trophic levels. (A)</p> Signup and view all the answers

<p>Energy flows from producers to consumers to decomposers. (C)</p> Signup and view all the answers

<p>Cow (A)</p> Signup and view all the answers

<p>A food web shows the interconnected feeding relationships between organisms in an ecosystem. (D)</p> Signup and view all the answers

<p>Decomposers break down dead organisms and waste, returning nutrients to the soil. (D)</p> Signup and view all the answers

<p>It would necessitate the use of large amounts of fertile topsoil, potentially depleting it. (C)</p> Signup and view all the answers

<p>To ensure better hygiene standards compared to reusable cups. (D)</p> Signup and view all the answers

<p>Consumer attitudes towards disposability and the availability of disposable products are mutually reinforcing. (C)</p> Signup and view all the answers

<p>Enzymes exhibit a high degree of specificity, with each enzyme catalyzing the breakdown of a particular type of molecule. (B)</p> Signup and view all the answers

<p>Widespread depletion of marine life due to the disruption of the food chain in certain ecosystems. (D)</p> Signup and view all the answers

<p>The disposal of electronic waste can lead to soil and water pollution due to the presence of hazardous materials. (B)</p> Signup and view all the answers

<p>To study the decomposition process of various materials and their potential impact on the environment. (A)</p> Signup and view all the answers

<p>Paper cups are biodegradable and decompose faster than plastic cups, minimizing their environmental impact. (D)</p> Signup and view all the answers

<p>Shifting consumer preferences towards convenience and disposability, promoting single-use products. (B)</p> Signup and view all the answers

<p>Increased rates of skin cancer and other health problems associated with UV radiation. (B)</p> Signup and view all the answers

<p>To observe the decomposition processes of different materials over time. (A)</p> Signup and view all the answers

<p>Advances in material science and packaging technology, leading to the use of non-biodegradable materials in packaging. (A)</p> Signup and view all the answers

<p>To break down food molecules into smaller units that can be absorbed by the body. (D)</p> Signup and view all the answers

<p>All of the above. (E)</p> Signup and view all the answers

<p>The digestive system is highly complex, requiring a diverse range of enzymes for efficient digestion. (A)</p> Signup and view all the answers

<p>The impact of human activity on the environment, particularly the depletion of the ozone layer and waste management. (D)</p> Signup and view all the answers

<p>It protects against harmful ultraviolet radiation. (C)</p> Signup and view all the answers

<p>Composting organic waste. (D)</p> Signup and view all the answers

<p>There is a loss of energy. (D)</p> Signup and view all the answers

<p>Biodegradable waste can break down naturally. (C)</p> Signup and view all the answers

<p>It can disrupt the balance among remaining organisms. (C)</p> Signup and view all the answers

<p>Decreased toxicity through metabolic processes. (D)</p> Signup and view all the answers

<p>Higher incidence of skin cancer in humans. (D)</p> Signup and view all the answers

<p>Producers, consumers, and decomposers. (B)</p> Signup and view all the answers

<p>The ecosystem requires external inputs of all nutrients and energy. (C)</p> Signup and view all the answers

<p>Temperature (B)</p> Signup and view all the answers

<p>They absorb excess nutrients and waste products, helping maintain water quality. (B)</p> Signup and view all the answers

<p>Gardens are maintained by human intervention. (B)</p> Signup and view all the answers

<p>They convert organic matter into inorganic nutrients. (D)</p> Signup and view all the answers

<p>These summits promote global collaboration in protecting the environment. (A)</p> Signup and view all the answers

<p>The increasing pollution and degradation of natural resources. (B)</p> Signup and view all the answers

The surroundings in which organisms live, including both living and non-living components.

A community of living organisms interacting with their physical environment.

The living parts of an ecosystem, including plants, animals, and microorganisms.

The non-living parts of the ecosystem, like temperature, soil, and water.

Ecosystems that occur naturally, like forests, ponds, and lakes.

Ecosystems created by humans, such as gardens and aquariums.

A human-made ecosystem designed for aquatic life, requiring water, oxygen, and food.

An ecosystem that maintains itself without external input, like some aquariums.

Synthetic chemicals linked to ozone depletion.

Reduction in the ozone layer due to harmful chemicals.

UN pact to freeze CFC production at 1986 levels.

Refrigerants produced without using CFCs.

Items we discard from daily activities.

Process by which organic waste breaks down.

Proteins that speed up biochemical reactions.

Enzymes are tailored to break down specific substances.

Waste that can be broken down naturally by microorganisms.

Waste that cannot be decomposed by natural processes.

The process of removing contaminants from wastewater.

How communities handle waste collection and disposal.

Effects on the environment due to the use of single-use items.

Comparative analysis of traditional clay cups and modern paper cups.

Substances that pose risks to health or the environment.

Contamination of the environment by harmful substances.

The transfer of energy between ecosystem components.

Organisms that capture sunlight and convert it to food energy.

Organisms that eat producers to obtain energy.

Energy lost as heat and used in digestion at each trophic level.

The various levels in a food chain where energy transfer occurs.

A linear sequence showing how energy flows between organisms.

A complex network of interconnected food chains in an ecosystem.

The energy flow in an ecosystem moving in one direction.

Organisms that produce their own food from sunlight, known as producers.

Organisms that cannot produce their own food and depend on others.

Small carnivores that eat primary consumers at the third trophic level.

Larger carnivores that eat secondary consumers at the fourth trophic level.

A protective layer in the Earth's stratosphere that absorbs harmful UV radiation.

As energy moves through trophic levels, some is lost as heat or waste.

Actions taken by humans that affect the environment, often negatively.

The increasing concentration of toxic substances in higher trophic levels.

Actions that reduce harm to the environment and promote sustainability.

Ways to manage waste, such as recycling and composting.