WorksheetsUnit 7 - Classifying Living Things
Total questions: 18
Worksheet time: 1hrs 4mins
Miguel had a white navy bean, a red lentil bean, a white lima bean, and a black bean. He used a diagram like the following to classify the four beans according to their physical characteristics.
This type of classification chart is known as what?
an order of classes
a dichotomous key
a subdivision
a classification code
Mrs. Kim’s class was identifying different species of plants. Which of the following best describes a species?
the next more specific classification following an order
a group in which organisms of different kinds are closely related
a unique kind of organism
another name for a family or genus
Where Dimitri lives, the climate is humid much of the year. In some places, moss grows in the shade and between cracks in the pavement. The simplest plants, such as mosses and liverworts, are examples of which of the following plant groups?
vascular plants
nonvascular plants
gymnosperms
angiosperms
Tuyen’s class was studying vertebrates. What are vertebrates?
animals with body parts in segments
animals with spiny skin
animals with backbones
animals without backbones
Some organisms go through a metamorphosis as they grow into adults. In some cases, the metamorphosis is called complete metamorphosis. In other cases, the process is called incomplete metamorphosis. Which of the following describes the process called incomplete metamorphosis?
newborn → toddler → child → adult
egg → nymph → adult
egg → larva → pupa → adult
egg → hatchling → adult
Scientists organize living things into a number of different levels of classification. As you continue down the levels of classification, which of the following is true?
Each level refers to a unique kind of organism.
The members of each classification level have more and more differences.
The organisms are grouped more and more by their behavior.
The organisms are more and more closely related to each other.
Emma’s class was studying vertebrates. Which of the following are examples of vertebrates?
ferns, conifers, mosses
brittle stars, sea stars, basket stars
camels, falcons, sharks
crabs, grasshoppers, jellyfish
A scientist is studying how a certain factor affects how quickly a seed germinates. She keeps the soil, amount of light, and water the same. She puts one seed in a room that is 5 °C, one in a room that is 10 °C, one in a room that is 15 °C, and the last seed in a room that is 20 °C. What variable is she testing?
light
soil
temperature
water
Hakim wants to make a dichotomous key that a person could use to identify all the different types of plants shown below.
Which set of questions would be correct to include in his dichotomous key?
Does this plant give shade? Is this plant a weed? Does this plant have many flowers on one stem?
Is this plant a tree? Is this plant a bush? Is this plant a flower?
Is this plant a vegetable or fruit? Is this plant healthy or sick? Is this plant still growing or fully mature?
Does this plant bear fruit? Is this plant very tall? Does this plant need a wire support to grow?
This drawing shows the parts of a flower, including the male and female reproduction structures.
Which of these terms names male reproduction structures of a flowering plant?
petal, fruit
ovary, ovules
anther, pollen
stigma, nectar
Aran observed moss growing on rocks and trees in a shady and moist area of a forest. The moss was very short. He also observed that no moss grew in dry or sunny areas. Which of the following is true about the moss?
Moss is a vascular plant, so it has true leaves and roots.
Moss is a nonvascular plant, without true leaves or roots.
Moss reproduces by seeds that are protected inside a fruit.
Moss is the sexual generation of a fern plant.
Ava plants two bean seeds to find out what things affect how fast bean seeds will germinate. She plants the seeds in good soil and waters them daily. She places them in two different locations, as shown in the picture below.
What is Ava studying?
how soil affects germination
how water affects germination
how sunlight affects germination
how the container affects germination
Sayana is testing whether bean seeds germinate more quickly in soil than in water alone. She places several bean seeds into plastic bags. She makes sure each seed is in the same area and receives the same amount of water and sunlight. What does she need to do to make this a controlled experiment?
plant a bean seed in soil and keep it in the same conditions
plant a bean seed in the shade and keep the other conditions the same
plant a bean seed without water and keep the other conditions the same
plant a bean seed in a cold place and keep the other conditions the same
Which of the following is a list of invertebrate groups?
amphibians, fish, reptiles
sloths, spiders, sea urchins
frogs, salamanders, sea turtles
mollusks, arthropods, echinoderms
The fig wasp is a beneficial insect because it is helpful to another organism. The female fig wasp spreads pollen to fig flowers at the same time that she lays her eggs. What is the next stage of the eggs’ life cycle?
adult
larva
molting
pupa
Some plants produce a large number of seeds. The more seeds that are produced, the more likely that some of them will survive, germinate, and grow. Examine the bar graph below.
Which plant is the best example of this life-cycle adaptation?
Plant A
Plant B
Plant C
Plant D
The first oxygen produced on Earth most likely came from?
plants
animals
tardigrades
bacteria
What do mites feed on?
yeast
plant cells
skin cells
phytoplankton
