Chapter 5 Test Flashcards

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1
Q

How can pollen be carried?

A

Pollen can be carried by wind, water, and animals.

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2
Q

What attracts animals to a plant?

A

Fragrant, showy, colorful, interesting shape.

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3
Q

Dr. David Hall is known for what?

A

Dr. David Hall is known for the gold head branch murders and is a consultant, an expert in plant identification and economy, and the first forensic botanist to be admitted into the American Academy of Forensic Science. He has educated forensic botanists, law enforcement officers, and lawyers on how to collect and document botanical evidence. In 1993, he trained FBI agents in Quantico.

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4
Q

Dr. Jane Bock is known for what?

A

She is known for the Natalie Mirbael murder where she tracked botanical evidence in her husband’s car to her death. She can determine how long a body covered in wilted sunflowers has been sitting and find the person by testing how long it would take the sunflowers to wilt in the conditions of the area. Gastric content test chewing spinach, okra, lettuce, onions, olives, and tomatoes

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5
Q

Is it possible to determine if someone has drowned, and how so?

A

Yes, by comparing the number and proportion of algae and diatoms in a person’s lungs and body tissues, it is possible to determine where a person has drowned. A postmortem interval can be determined based on the number of diatoms.

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6
Q

What is the term used to describe the study of a tree ring?

A

Dendrochronology, annual ring.

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7
Q

What is Locard’s principle of exchange?

A

A cross-transfer of physical evidence can occur when a person comes into contact with an object or another person, leaving behind trace evidence.

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8
Q

What is included in a seed plant?

A

Gymnosperms and angiosperms.

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9
Q

How may a seed be dispersed?

A

Animal feces, burrs that stick to animal hair or clothing, and wind.

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10
Q

What is a Cyclops?

A

A type of gymnosperm.

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11
Q

What are ginkgoes?

A

A type of gymnosperm.

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12
Q

What are cycads?

A

A type of gymnosperm.

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13
Q

What are conifers?

A

The largest, most familiar group of gymnosperms includes pines, spruces, firs, junipers, and other evergreen plants.

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14
Q

What are angiosperms?

A

A flowering plant that produces seeds within a fruit.

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15
Q

What are gymnosperms?

A

A plant with ‘naked’ seeds that are not enclosed in a protective organ (fruit); most are evergreens.

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16
Q

What is the female part of the flower called, parts, use?

A

Pistil, made up of the stigma, style, and ovary that produces eggs.

17
Q

What is the male part of the flower called?

A

Stamen, made of the anther that produces pollen sacs and filament that holds the anther up.

18
Q

What is self-pollination and cross-pollination?

A

Self-pollination involves the transfer of pollen from an anther to a stigma within the same flower. Cross-pollination involves the transfer of pollen from an anther of one plant to the stigma of a different flower.

19
Q

What is the approximate number of angiosperms that exist?

A

300,000 species.

20
Q

What do conifers produce their seeds within?

A

A hard scaly structure called a cone.

21
Q

What are algae and diatoms?

A

Nonvascular, photosynthetic organisms, important producers found in freshwater, salt water, and mud. Diatoms are relatives of algae that have cell walls containing silicon dioxide or silica.

22
Q

What is an assemblage?

A

A group of plant species in an area dominated by one species that share the same habitat requirements.

23
Q

What is meant by habitat sample?

A

A collection of at least 10 different types of plants from the area’s assemblage including any unusual plants.