History of Tree Rings
What is the study of tree rings called?
Denrochronology
What tiny evidence is found in drowning victims?
Diatoms.
What can depressed (pushed down) grasses tell us?
Indicating possible movement patterns, entrances or exits.
What details should be included about botanical evidence on the label?
description
height
color and shape
What is pollen?
Male gamete (sperm) of a plant
When are the darker rings of a tree produced?
Summer
What do old gravesites look like?
Sunken in as the ground settles.
What is the minimum number of plants from an assemblage area that should be collected?
At least 10
What is the name of the study of diatom or algae evidence?
Limnology
Why is it important for the pollen to be transferred from one plant to another?
To fertilize other plants. (reproduction)
When does the early wood (light colored wood) grow?
In the spring.
How can pollen and spores solve criminal cases?
They can help tell us the location of the crime.
How do people collect botanical evidence?
In a paper bag.
What is the term used for evidence that is not disturbed.
In-situ
How do pollen and spores help solve crimes?
They can narrow down the location where the crime occurred or where the victim/suspect was.
when and how (speed) do trees grow?
They grow fast in the spring, slow in the summer, and they hibernate in the winter.
What type of death do we analyze diatoms for?
Drowning.
What is an assemblage?
An area of plants, mainly dominated by one species
Why do forensic scientists collect botanical evidence?
To solve crimes.
What are all the female parts of a flower called
Pistil or Carpel
What are tree rings made of?
Xylem
How can you tell if a gravesite is new?
It will be raised.
Why do photographers take images of the entire area/crime scene?
So they can capture the scene in-situ, undisturbed/ before the area is searched or contaminated.
What should be labeled with description, height, color, and shape?
Botanical evidence
Which plant can you find pollen? Spore?
pollen - flower
spore - mushroom