Cell Theory
Cells that are very simple with no nucleus, such as the cells that make up bacteria, are ___________cells. Cells that are more complex with a nucleus, such as the ____________ cells that make up plants and animals, are cells.
What is Prokaryotic and Eukaryotic
The Pleistocene epoch was a period of Earth's history that ended about 10,000 years ago. Much of this period was known as an "Ice Age" becaus
Earth's land was covered with snow and ice. Many mammals on Earth today had relatives that lived during the Pleistocene epoch that are now extinct
on what you know about the Pleistocene epoch, how do you think the extinct relatives might have been different from today's mammals?
A. shorter/thinner fur
B. longer/thicker fur
C. longer/thinner fur
D. shorter/darker fur
What is B. Longer/thicker fur
Which of the following best explains why the sun and moon both appear to move across the sky each day?
A. rotation of the Earth
B. revolution of the Earth
C. rotation of the Moon
D. revolution of the Moon
What is A. The rotation of Earth.
Which of the following is part of Cell Theory?
A. All living things are composed of more than one cell.
B. All organisms are equally adapted to their environment.
C. All cells come from pre-existing cells.
D. All adaptations occur because of an organism’s environment.
What is C. All Cells come from pre-existing cells
Many plants use brightly colored flowers to attract insect pollinators.
Which is the MOST likely conclusion about a plant that has very small flowers that are hard to see?
A. It does not require a pollinator to reproduce.
B. It does not produce seeds.
C. It grows only in gardens.
D. It does not want to reproduce.
What is A. It does not require a pollinator to reproduce.
Which of the following statements accurately describes the seasons experienced in the northern and southern hemispheres?
A. When the northern hemisphere is experiencing spring, the southern hemisphere is experiencing summer.
B. When the northern hemisphere is experiencing spring, the southern hemisphere is also experiencing spring.
C. When the northern hemisphere is experiencing winter, the southern hemisphere is experiencing summer.
D. When the northern hemisphere is experiencing fall, the southern hemisphere is experiencing winter.
What is C. When the northern hemisphere is experiencing winter and the southern hemisphere is experiencing summer.
A scientist observes a microscopic object and identifies it as a living organism because it is composed of a single cell that performs all life proc
Which part of the cell theory does this support?
A. Cells are only found in animals.
B. Cells can form from nonliving material.
C. All living things are made of more than one type of cell.
D. The cell is the basic unit of structure and function in living things.
What is D. The cell is the basic unit of structure and function in living things
Coral are classified as heterotrophic because they cannot —
A. move from place to place
B. make their own food
C. get rid of waste products
D. catch their own food
What is B. make their own food
Two different forces that are interacting with each other. There is a force of 40 Newtons pushing to the right and 60 Newtons pushing to the left.
Which of the following statements accurately describe the forces?
Select TWO correct answers.
A. The forces are balanced.
B. The forces are unbalanced.
C. The net force is 100 newtons.
D. The net force is 20 newtons.
E. The net force is 2,400 newtons.
What is B. the forces are Unbalanced and D. The net force is 20 newtons.
What do prokaryotic cells and eukaryotic cells have in common?
A. Both have a nucleus.
B. Both have a cell wall.
C. Both have genetic material.
D. Both have chlorophyll.
What is C. Both have a genetic material.
Rabbits in most areas have a brown coat. The arctic hare has a bright white coat in winter. How does the arctic hare's white color help it survive?
A. It makes the hare warmer during the summer.
B. It helps the hare blend into its background.
C. It makes the hare appear larger to predators.
D. It helps the hare stay warm during the winter.
What is B. It helps the hare blend into its background.
Who studied the following parts of the cell theory?
_________studied plants, and agreed with another scientist that all organisms contain one or more cells.
__________studied animals, and agreed with another scientist that all organisms contain one or more cells.
Who is Matthias Schledien and Theodor Schwann.
Cell theory describes how all living organisms are made of cells and that cells can only be made from pre-existing cells. Before research on cells
conducted, some people thought that life could spontaneously start from nonliving things. Which of the following scientists is credited with con
The Cell Theory?
A. Carolus Linnaeus
B. Galileo Galilei
C. Theodore Schwann
D. Alfred Wegener
Who is C. Theodore Schwann
According to the Cell Theory, which of the following is a correct statement about the mushrooms (which are fungi) and the person (which is an autotroph)?
A. They reproduce in the same way.
B. They are made from cells.
C. They undergo photosynthesis.
D. They can quickly evolve.
What is B. They are made from cells.
Which scientist borrowed information from Robert Remak to conclude all cells come from_________ cells.
Who is Rudolf Virchow and preexisting.