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Dichotomous keys, traits and cell basics

Total questions: 50

Worksheet time: 38mins

Name
Class
Date
1.
A dichotomous key for trees is provided. Hikers found a tree that has large brown cones and single sharp needles. What species of tree have the hikers found?
a)
Juniper
b)
Pine
c)
Spruce
d)
Fir
2.
What is the purpose of a dichotomous key?
a)
to find a common ancestor
b)
to show the evolution of organisms
c)
to show relationships between organisms
d)
to identify organisms
3.
What step do we always start with when using dichotomous keys?
a)
1
b)
2
c)
3
d)
4
4.
When using a dichotomous key to identify organisms, what do we look at?
a)
physical features
b)
weather patterns
c)
environment
d)
diet
5.
Using this dichotomous key, identity the name of the circled fish.
a)
band-tail puffer
b)
spotted goat fish
c)
peacock flounder
d)
trumpet fish
6.
An illustration and a dichotomous key are given. What is the correct classification for this organism?
a)
Class Insecta
b)
Order Amblygygi
c)
Order Araneae
d)
Order Scorpiones
7.
What is the name of bird W?
a)
Certhidea
b)
Geospiza
c)
Camarhynchus
d)
Platyspiza
8.
What is the name of bird Z?
a)
Certhidea
b)
Geospiza
c)
Camarhynchus
d)
Platyspiza
9.
Using this dichotomous key, identify the name of the circled Fish, J.
a)
peacock flounder
b)
band-tail puffer
c)
trumpet fish
d)
spotted goat fish
10.

How many options should every branch in a dichotomous key have?

a)

1

b)

2

c)

3

d)

4

11.

In a dichotomous key, organisms should be classified based on their

a)

diet

b)

habitat

c)

observable features

d)

sounds they make

12.

Identify leaf F

a)

Cydonia

b)

Magnolia

c)

Aesculus

d)

Fraxinus

e)

Ilex

13.

If you were to make a dichotomous key to identify this organism, which option would NOT be used?

a)

Presence of webbed feet

b)

Presence of tail

c)

Fur on the body

d)

Ability to swim

e)

Absence of wings

14.
Question*Which characteristic is learned rather than inherited?
a)
being tall
b)
having curly hair
c)
having brown hair
d)
throwing a football
15.
Parents and children share traits. Which of these is NOT an inherited trait?
a)
eye color
b)
liking spicy foods
c)
left-handedness
d)
ear shape
16.
What is the difference between inherited traits and learned behaviors?
a)
Inherited trait are something you get from your sister and learned behaviors come from experience.
b)
Inherited traits are something you get from your parents and learned traits are things like eye color.
c)
Inherited traits are something you get from your parents such as hair type and learned behaviors are something you learn to do with practice or past event.
17.
Which best describes an inherited trait?
a)
a characteristic one chooses to express
b)
a characteristic one receives from the food one eats
c)
a characteristic that is passed on from one's parents
d)
a characteristic that is influenced by one's surroundings
18.

The basic building blacks from which all living organisms are made are

a)

cells

b)

DNA

c)

chromosomes

d)

Amoeba

19.

It is true, not all cells have a true nucleus, but all cells must have some sort of

a)

DNA

b)

Cytoplasm

c)

Osmosis

d)

Call Wall

20.

This part of the cells controls what moves in and out

a)

cell wall

b)

cell membrane

c)

Cytoplasm

d)

organelles

21.

_______ are the smallest units of life because they grow, reproduce, respond, and use energy.

a)

atoms

b)

elements

c)

cells

d)

all of the above

22.

Cells come from______.

a)

other preexisting cells

b)

cytoplasm

c)

organelles

d)

prokaryotes

23.

The cell theory states that_________

a)

cells come from cells

b)

all organisms are made of cells

c)

cells are the basic unit of structure and function for life

d)

all of the above

24.

________ is the scientist who saw small chambers when looking at cork, and named them “cells”.

a)

Newton

b)

Hooke

c)

Carson

d)

Manning

25.

The size of an organism is determined -

a)

by the size of the cells that make up the organism.

b)

by the number of cells that the organism has.

26.

A multicellular organism is made of

a)

one cell

b)

multiple cells

c)

unicellular cells

d)

there is no such thing as a "multicellular" organism

27.

One common feature of all cells is their ability to -

a)

work with other cells in a "unicellular" organism.

b)

reproduce themselves.

c)

be formed by spontaneous generation.

d)

exist without needing a cell membrane

28.

Regardless of type, all cells

a)

have a cell membrane

b)

have cytoplasm

c)

can duplicate themselves by undergoing cell division

d)

all of the above

29.

A cell in which the genetic material is enclosed within a nucleus is a

a)

eukaryotic cell

b)

prokaryotic cell

c)

human cell

d)

animal cell

30.

What type of cell lacks a nucleus?

a)

eukaryotic

b)

prokaryotic

c)

human

d)

animal

31.

Many celled organisms are called

a)

unicellular

b)

multicellular

c)

bicellular

d)

tricellular

32.

Single celled organisms are called

a)

unicellular

b)

multicellular

c)

bicellular

d)

tricellular

33.

Which of the following is true about cells?

a)

Cells have specialized components that perform different, specific functions.

b)

A cell’s components are all identical and perform the same function.

c)

Cells have specialized components that all perform the same functions.

34.

Which of the following statements is true?

a)

All multicellular organisms have skeletal systems.

b)

All multicellular organisms have specialized cells.

c)

All multicellular organisms have circulatory systems.

d)

All of these

35.

"Small organs" of the cell that carry out specific functions

a)

Organelles

b)

Organs

c)

Cell Wall

d)

Cell

36.

protective layer around all cells, allows nutrients in and waste out

a)

Cell Wall

b)

Cell Membrane

c)

Endoplasmic Reticulum

d)

Ribosomes

37.

Control center of cell, contains instructions for everything the cell does.

a)

Ribosomes

b)

Nucleus

c)

Endoplasmic Reticulum

d)

Mitochondria

38.

A fluid made of mostly water and organic compounds where organelles are located

a)

Cytoplasm

b)

Nucleus

c)

Vacuole

d)

Mitochondria

39.

All living things are made up of cells, cells are the smallest unit of life, all cells come from preexisting cells.

a)

Cell Theory

b)

Golgi Body

c)

Vacuole

d)

Life

40.

smallest unit of life

a)

Human

b)

Cell Wall

c)

Cell

d)

Plants

41.

Why are cells like factories?

a)

they only take in materials and break them down

b)

they are automated

c)

they take in materials and send out products

d)

they produce items for sale

42.

These are determined by genes or the environment, or more commonly by interactions between them.

a)

cells

b)

traits

c)

genes

d)

DNA

43.

What is a couplet?

a)

two identical cells

b)

a poem in English

c)

two orgainisms that look similar

d)

a yes/no question on a dichotomous key

44.

What are dichotomous keys used for?

a)

in taxonomy to help name and classify organisms

b)

to help scientists make decisions

c)

to create couplets

d)

to decide what traits are important

45.

Why might a hiker use a dichotomous key?

a)

to identify plants and animals

b)

to keep from getting lost

c)

to read while eating lunch

d)

to determine which animals are friendly

46.

How might a dichotomous key help a person?

a)

help them identify which animals are friendly

b)

help them determine if their dog can learn tricks

c)

help them determine if a plant is poisonous

d)

help them locate a place

47.

Living things that have similar characteristics and can produce offspring when they mate are

a)

unique and not like others

b)

organisms that live in the same area

c)

found in a dichotomous key

d)

in same species

48.

Why do scientists use dichotomous keys?

a)

a tool to help identify organisms

b)

because there is nothing else to use

c)

because it is fun

d)

because there are new species

49.

Which trait below could be used in a dichotomous key to identify these dinosaurs from these pictures?

a)

All the dinosaurs have different weights

b)

some dinosaurs have claws

c)

some dinosaurs can make noises

d)

some dinosaurs are carnivores

50.

Who can use a dichtomous key?

a)

only scientists

b)

scientists and hikers only

c)

anyone who is trying to figure out the identity of an organism

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