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Insect bio > Lesson 2 > Flashcards

Lesson 2 Flashcards

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Biology 101 flashcards
1
Q

What is abundance and what is a fun fact about ut related to insects?

A

The number of each individual/specimen.
Insects have the largest biomass of all terrestrial animals

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2
Q

What is diversity and what are two fun facts about it related to insects? (Relating to other living organisms and animals)

A

The number of different species.
Insects represent more than half of all known living organisms
80% of all animals are insects

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3
Q

What is the only habitat that insects have not colonized?

A

Ocean (marine environment)

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4
Q

How many describes species of insects are there?

A

1 million

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5
Q

What are intertidal zones?

A

Zones closely associated to the water

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6
Q

True or false? Insects cannot tolerate extreme environments.

A

False

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7
Q

What are the 6 reasons why insects are successful?

A

Ancient lineage and low rate of extinction
Exoskeleton
Wings
Small size
Complete metamorphosis
High reproductive capacity

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8
Q

What does it mean to be of old lineage?

A

It means they are the first to colonize an environment

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9
Q

What are the advantages of being of old lineage? (2)

A

It is easier to take the niches since there is less competition
They are ready to exploit their new environment

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10
Q

What are the advantages of having an exoskeleton? (4)

A

Protection from physical damage
Discourage predators
Protective barrier between living tissues and the environment
Protects against desiccation

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11
Q

What are two characteristics of the exoskeletons of insects?

A

Can be very hard and thick
Has a wax layer that keeps humidity

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12
Q

What are the advantages of having a small size? (4)

A

They need little food
Can hide from predators and environmental conditions
Can find places for food
Can exploit a large number of micro habitat

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13
Q

What are the advantages of having wings? (2)

A

Finding food, mates and escaping from enemies
Move freely from one habitat to another

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14
Q

What is complete metamorphosis?

A

When the larvae has a different body form and requires a different habitat and food.

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15
Q

What is incomplete metamorphosis?

A

When the larvae looms like adults but just smaller. They require the same food.

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16
Q

True or false? Most insects orders have complete metamorphosis.

A

True

17
Q

What is an advantage of complete metamorphosis?

A

The adult and larvae don’t compete with each other

18
Q

What are the advantages of having a high reproductive capacity? (3)

A

Populafion builds up faster
Faster rate of mutation
Higher rate if survival

19
Q

What does it mean for insects to have a high reproductive capacity?

A

They have short generation time and lay eggs in large numbers

20
Q

What are the beneficial aspects of insects?

A

Pollination
Food source
Nutrient cycling
Soil improvement
Xontrol of other organisms
Medicine and genetics
Biochemical indicators
Commercial producrts
Aesthetic and cultural use

21
Q

How does pollination work?

A

The insect visits the flower, the grains attach to its body, they visit another plant, the pollen attach to its stigma and it makes a seed

22
Q

How much of our diet is pollinated by insects?

A

30%

23
Q

Why are bees more important as pollinators than other insects?

A

They specifically look for pollen since they eat it. They cover their body in pollen to capture it. They have pollen baskets which is a body part that collects pollen.

24
Q

What is entomophagy?

A

The study of insects as human food

25
Q

True or false? There is a zero tolerance policy for insects in food

A

False (there is a legal tolerance)

26
Q

Insects are used as food for which type of living organisms mostly?

A

Animals

27
Q

What is an adaptation of some insect that helps in nutrient cycling and how?

A

They have chewing mouth parts that break matter into small pieces.

28
Q

Why are scavengers important?

A

They are involved in the decomposition of organic matter and nutrient cycling.

29
Q

True or false? Without insects decomposing matter faster, we would be submerge by decaying matter.

A

True

30
Q

Why are soil insects important? (2)

A

They aerate the soil
Improve its physical properties and ass to its organic content.

31
Q

Except for Earth worms, what are some example of soil insects?

A

Soil arthropods aka proturans, springtails, diplurans, termites, ants and many beetles, larvae and fly larvae

32
Q

How are parasitoid and predatory insects used in ecosystems?

A

They are biological control of insect pests and maintain the balance of the ecosystem

33
Q

What is an example of using insects in medicine?

A

Maggot therapy

34
Q

What are maggots?

A

Fly larvae (2A bathroom assholes)

35
Q

How does maggot therapy work?

A

They treat infected and gangrenous wounds with maggots. They eat the necrotic tissue (bacteria)

36
Q

How are some insects good model species for genetics? (4)

A

Fast generation time
High reproductivity
Large chromosome
Small number of chromosome

37
Q

What insect is used as a model species?

A

Fruit flies

38
Q

What is forensic entomology?

A

The use of insect knowledge in the investigation of crimes

39
Q

What are three examples of commercial products derived from insects?

A

Honey and beeswax
Silk
Red dyes

Insect bio (8 decks)

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