sustainability and interdependance Flashcards

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1
Q

Food Security

A

The availability and access to sufficient, safe, and nutritious food to meet dietary needs for a healthy life.

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2
Q

Food Production

A

Food production methods that do not degrade the natural resources upon which agriculture depends, ensuring long-term productivity and food security.

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3
Q

Photosynthesis

A

The process by which green plants and some other organisms use sunlight to synthesize nutrients from carbon dioxide and water. It involves the green pigment chlorophyll and generates oxygen as a by-product.

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4
Q

Photosynthetic Pigments

A

Molecules such as chlorophyll and carotenoids that absorb light energy used in photosynthesis.

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5
Q

Absorption Spectrum

A

A graph showing the different wavelengths of light absorbed by different pigments.

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6
Q

Action Spectrum

A

A graph that profiles the relative effectiveness of different wavelengths of radiation in driving a particular process, such as photosynthesis.

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7
Q

Carotenoids

A

Accessory pigments in plants that broaden the spectrum of colors that can drive photosynthesis by transferring the absorbed energy to chlorophyll.

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8
Q

ATP Synthase

A

An enzyme that creates ATP by using the energy from a flow of hydrogen ions across a membrane.

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9
Q

Photolysis

A

The process by which light energy splits water molecules during photosynthesis, producing oxygen, electrons, and hydrogen ions.

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10
Q

NADP (Nicotinamide Adenine Dinucleotide Phosphate)

A

A coenzyme that carries electrons and hydrogen ions in photosynthesis, forming NADPH.

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11
Q

RuBisCO (Ribulose-1,5-bisphosphate carboxylase-oxygenase)

A

The enzyme that catalyzes the first major step of carbon fixation in the Calvin cycle.

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12
Q

Calvin Cycle

A

A set of chemical reactions that take place in chloroplasts during photosynthesis, where carbon dioxide is fixed into glucose.

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13
Q

Glyceraldehyde-3-phosphate (G3P)

A

A three-carbon molecule formed in the Calvin cycle that is used to regenerate RuBP and synthesize glucose.

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14
Q

Plant Breeding

A

The science of changing the traits of plants to produce desired characteristics, used to support sustainable food production.

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15
Q

Plant Field Trials

A

Experiments carried out in natural conditions to evaluate the performance of different plant cultivars or treatments.

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16
Q

Inbreeding

A

Breeding of closely related individuals to produce offspring with desired traits but can lead to inbreeding depression due to increased homozygosity of deleterious alleles.

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17
Q
A
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18
Q

Inbreeding Depression

A

Reduced biological fitness in a population due to inbreeding, resulting in a higher occurrence of harmful recessive traits.

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19
Q

Crossbreeding

A

The process of breeding animals from different breeds to produce offspring with desired characteristics from both parents.

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20
Q

F1 Hybrids

A

Offspring resulting from the crossbreeding of two different inbred lines, often exhibiting increased vigor and yield.

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21
Q

Genetic Technology

A

Techniques such as genome sequencing and recombinant DNA technology used in breeding programs to improve crop and animal characteristics.

22
Q

Weeds

A

Plants that compete with crops for resources such as light, water, and nutrients, reducing agricultural productivity.

23
Q

Annual Weeds

A

Weeds that complete their life cycle within one growing season, characterized by rapid growth, high seed output, and long-term seed viability.

24
Q

Perennial Weeds

A

Weeds that live for several years and have adaptations like storage organs and vegetative reproduction to survive and compete with crops.

25
Q

Cultural Control

A

The use of agricultural practices such as crop rotation, tillage, and timing of planting to manage weeds, pests, and diseases.

26
Q

Pesticides

A

Chemicals used to control pests, weeds, and diseases in agriculture. They can be selective (targeting specific species) or systemic (affecting the entire plant).

27
Q

Bioaccumulation

A

The build-up of substances, such as pesticides, in the tissues of living organisms over time.

28
Q

Biomagnification

A

The increasing concentration of a substance, such as a pesticide, in the tissues of organisms at successively higher levels in a food chain.

29
Q

Biological Control

A

The use of natural predators, parasites, or pathogens to control pests and diseases in agriculture.

30
Q

Integrated Pest Management (IPM)

A

A pest control strategy that uses a combination of methods (biological, cultural, physical, and chemical) to manage pest populations at acceptable levels with minimal environmental impact.

31
Q

Animal Welfare

A

The well-being of animals in terms of health, comfort, nutrition, and ability to express natural behaviors, particularly in the context of livestock production.

32
Q

Stereotypy

A

Repetitive, invariant behavior patterns with no apparent goal or function, often indicative of poor animal welfare.

33
Q

Misdirected Behavior

A

Behaviors that are normal in nature but are directed inappropriately, often due to confinement or lack of stimulation.

34
Q

Symbiosis

A

A close and long-term biological interaction between two different biological organisms, which may be mutualistic, parasitic, or commensal.

35
Q

Parasitism

A

A symbiotic relationship where one organism (the parasite) benefits at the expense of the other (the host), often harming it.

36
Q

Mutualism

A

A symbiotic relationship where both species involved benefit and are interdependent on each other.

37
Q

Social Hierarchy

A

The organization of individuals in a group that establishes dominance and subordinate roles, reducing conflict and promoting social stability.

38
Q

Cooperative Hunting

A

A social behavior where animals hunt in groups to increase hunting success and share the prey.

39
Q

Altruism

A

A behavior that benefits another individual at a cost to the one performing the behavior, often seen in social animals.

40
Q

Kin Selection

A

A form of natural selection favoring behaviors that increase the survival and reproduction of relatives, even at a cost to the individual’s own survival and reproduction.

41
Q

Social Insects

A

Insects like bees, ants, and termites that live in highly organized colonies or societies with a division of labor, including reproductive and non-reproductive individuals.

42
Q

Primate Behavior

A

Social behaviors exhibited by primates, including humans, such as forming alliances, establishing hierarchies, and displaying complex social interactions and parental care.

43
Q

Genetic Diversity

A

The total number of genetic characteristics in the genetic makeup of a species, contributing to variations within a population.

44
Q

Species Diversity

A

The variety of species within a given ecosystem, including the number of different species (species richness) and the relative abundance of each species.

45
Q

Ecosystem Diversity

A

The variety of ecosystems in a particular area, including different habitats, ecological processes, and community interactions.

46
Q

Bottleneck Effect

A

A sharp reduction in the size of a population due to environmental events or human activities, resulting in decreased genetic diversity and reduced ability to adapt to changes.

47
Q

Habitat Fragmentation

A

The process by which large, continuous habitats are divided into smaller, isolated sections, often leading to decreased biodiversity and increased edge effects.

48
Q

Habitat Corridors

A

Strips of natural habitat that connect separated populations, allowing for the movement of species and the exchange of genes between isolated populations.

49
Q

Introduced Species

A

Species that have been moved by humans to new geographic areas where they do not naturally occur.

50
Q

Naturalized Species

A

Non-native species that have established populations in new environments and are able to survive and reproduce without human intervention.

51
Q

Invasive Species

A

Non-native species that spread rapidly in new environments, often outcompeting native species and reducing biodiversity.