Abeka Grade 7 Science Test 10

sporozoans

What group of protozoa includes plasmodium, which causes malaria?

eyepiece

What is the name of the lens of a microscope through which the image is viewed?

diaphragm

What structure of a microscope affects the amount of light that passes through the slide?

stage

On what part of a microscope is the slide placed?

Anton van Leeuwenhoek

Who is known as the Father of Microbiology?

yellow algae

To which group of algae do diatoms belong?

green algae

Which group of algae includes volvox?

cheliped

What structure do decapods use for protection and for capturing their food?

rostrum

What is the forward extension that protects a decapod's head?

maxillipeds

What do decapods use to hold their food as they chew?

barnacles

Which of the following crustaceans is a cirripede?

translation

Which of the following processes occurs when a ribosome "reads" RNA to make a protein?

sac fungi

What is the largest group of fungi?

smuts

Which type of fungi is parasitic and often infects grains?

brown recluse

What potentially dangerous North American spider is known for the violin-shaped marking on it abdomen?

daddy longlegs

What arachnid resembles a spider but is nonvenomous and lacks a constriction between the two body regions?

copepods

What group of crustaceans are known for having only one eye?

branchiopods

What group of crustaceans breathe with gills that are located on their legs?

amphipods

What group of crustaceans are known for having four pairs of legs pointing forward and three pairs pointing backward?

DNA

What substance stores the information that determines the genetic traits of an organism?

genetics

What is the scientific study of heredity called?

Robert Hooke

What English scientist discovered cork cells?

mycology

What is the study of the structure, characteristics, and environment of fungi called?

cell theory

What principle of biology states that all living things are made of cells and that all cells come from preexisting cells?

crab

You see a decapod that appears to have no abdomen; but as you look more closely, you notice that its abdomen is tucked under its carapace. What type of crustacean do you see?

protozoa

What are animal-like organisms made up of a single cell called?

cells

What are the smallest living units of all living things called?

cytoplasm

jelly-like substance that is the largest portion of the cell

nucleus

central portion of the cell, which is responsible for regulating all cell activities

chloroplast

structure in the cells of green plants where photosynthesis occurs

organelle

one of the "little organs" of the cell

vacuole

stores food materials within the cell

cell membrane

surrounds and protects the other parts of the cell

cephalothorax

The combined head and thorax of crustaceans and arachnids is called a(n) ? .

nematodes

The group of roundworms that are considered to be the most abundant animals are the ? .

pedigree

A family tree that includes information on a genetic trait being studied is a(n) ? chart.

gastropods

The group of mollusks that are designed to crawl on their stomachs are the ? .

woodlice

The only truly terrestrial crustaceans are called ? .

black widow

The ? spider is known for having a red or orange hourglass shape on the underside of its abdomen.

krill

The crustaceans that are known for their bioluminescent ability are ? .

carapace

Many crustaceans have an especially hard shell called a(n) ? , which covers their first body region to protect the vital organs.

echinoderms

have tube feet, radial symmetry, and spines

annelids

segmented worms

coelenterates

includes jellyfish

echinoderms

includes starfish and sand dollars

mollusks

includes octopuses and clams

sponges

multicellular organisms without a nervous system

coelenterates

have tentacles with cnidocytes

platyhelminths

includes flukes and tapeworms

true

true/false A single parent organism can produce offspring without the union of reproductive cells if it uses asexual reproduction

true

true/false If the alleles for a particular trait are different, the organism is heterozygous for that trait.

zygote

true/false An egg cell that has been fertilized is a gamete.

centipedes

true/false The arthropods that have flattened bodies and one pair of legs per abdominal segment are millipedes.

macroscopic

true/false An organism that can be seen by the unaided eye is considered microscopic.

phenotype

true/false The physical appearance that results from the alleles and organism inherited for a particular trait is the genotype.

true

true/false The organisms that are distinguished by their slipper shade and cilia are paramecia.

eukaryote

true/false An organism that has an organized nucleus is a prokaryote.

true

true/false The law of independent assortment says that the allele inherited for one trait does not affect the allele inherited for another trait.

decapods

Hermit crabs are ten-legged crustaceans that usually live in the shells of dead snails. Several species are noted for their large chelae. Although some hermit crab species live on land, they must carry water in their shells for breathing and must lay their eggs in water. In which group of crustaceans are hermit crabs?

spirogyra

You are participating in a science scavenger hunt. The first clue reads, "I am an alga that resembles a mass of green thread; under a microscope, my cells are easily recognizable by their spiraling chloroplasts." What type of algae are you looking for?

mitosis

While observing live cells under a microscope, you see a single cell dividing into town new daughter cells. Each daughter cell receives one copy of each chromosome, so that both have the same genetic information as the parent cell. What process did you observe?

Ff

In the following Punnett square, what should be in the indicated box?

50%

In pea plants, green seedpods (G) are dominant to yellow seedpods (g). A plant that is Gg is bred with a plant is gg; a Punnett square for this is shown below. What is the probability of offspring with green seedpods?

- Both have all five common characteristics of arthropods: jointed appendages, segmented bodies with distance body region, exoskeletons, growth by molting, and open systems of circulation.

- A beetle has three distinct body regions (head, thorax, and abdomen); a spider has only two distinct body regions (cephalothorax and abdomen)

- A beetle has three pairs of legs (six legs); a spider has four pairs of legs (eight legs)

-A beetle has one pair of antennae: a spider has an antennae

-A beetle undergoes (complete) metamorphosis; a spider does not undergo metamorphosis

- A beetle breathes using trachea and spiracles; a spider breathes both using trachea and spiracles and using book lungs.

-A beetle has both simple and compound eyes; a spider has only simple eyes.

-A spider is not considered an insect because it lacks several key insect characteristics (three body regions, six legs, antennae, compound eyes, etc.)

Compare the body structure of a spider to that of a beetle, include at least two similarities and three differences to explain why spiders are not considered insects.