Which of these gases, on average, has the lowest volume in the atmosphere of Earth?
oxygen
nitrogen
water vapor
carbon dioxide
carbon dioxide
A cell is...
the basic unit of structure and function in living organism
an organism
a basic part of everything that we see
found only in animals, not plants
the basic unit of structure and function in living organism
What is the primary cause of rainstorms?
Earth is heated by the Sun.
Mountains direct moist air upward.
Water forms droplets when cooled.
Most of Earth is covered with water.
Earth is heated by the Sun.
Many countries depend on the energy from fossil fuels. Some scientists suggest using renewable sources of energy instead. Why would scientists MOST likely suggest using renewable sources of energy?
They are safer for the environment.
They are cheaper to develop.
They are easier to transport.
They produce more energy
They are safer for the environment.
In which layer of Earth’s atmosphere does weather occur?
mesosphere
stratosphere
thermosphere
troposphere
Which type of air mass is COLD and HUMID?
Maritime Polar
Maritime Tropical
Continental Polar
Continental Tropical
Maratime Polar
An atmospheric layer of a specific gas provides shielding from harmful ultraviolet light from the Sun, allowing life to thrive on Earth. What gas makes up this layer?
H20
C02
N2
03
O3
They are highest clouds in the sky. They look curly, white and feathery. Usually mean good weather.
Cumulus
Cumulonimbus
Cirrus
Stratus
CIRRUS
Which best describes what a Punnett square determines?
the mathematical probability that DNA has a mutation
the mathematical probability that a trait will be inherited
the mathematical probability that offspring will survive to reproduce more offspring
the mathematical probability that a child will have larger feet than either the father or mother
the mathematical probability that a trait will be inherited
The fluid that surrounds the organelles is...
chloroplast
cytoplasm
vacuole
cell wall
Cytoplasm
Mitosis and meiosis are similar processes. Which BEST describes what can only occur after meiosis?
Parent cells can be either haploid or diploid.
Products of cell division result in identical genotypes.
Four daughter cells are produced by a single parent cell.
The number of chromosomes per nucleus remains the same after division.
Four daughter cells are produced by a single parent cell.
A series of steps used by scientists to solve a problem or answer a question.
scientific method
recipe
data collection
metric system
Scientific Method
A gene mutates in a type of bacteria. When these bacteria reproduce asexually, this mutation can only be inherited by
different types of bacteria.
cells in the bacteria that are non-reproductive.
bacteria cells that are missing the gene.
direct descendants of the bacteria
direct descendants of the bacteria
Which of these is a single celled organism?
Eugene
Paranoid
Amoeba
Cillia
Amoeba
Plants can reproduce sexually and asexually. If one offspring is produced sexually while the other is produced asexually, what will only the sexually produced offspring have?
both inherited and acquired traits
a new combination of traits
beneficial genetic traits
a complete set of traits
a new combination of traits
These clouds appear in blanket-like layers.
cumulus
cumulonimbus
cirrus
stratus
Stratus
4.
Which of the following is NOT part of the digestive system?
liver
gall bladder
kidney
pancreas
Kidney
Which involves the greatest variety of cell types?
a tissue
an organ
an organ system
an organism
An Organism
Which type of air mass is HOT and HUMID?
Maritime Polar
Maritime Tropical
Continental Polar
Continental Tropical
Maratime Tropical
An athlete is running a race. The athlete’s body needs energy. Which type of organelle in the athlete’s cells supplies the energy for cellular function?
Golgi apparatus
mitochondrion
ribosome
nucleus
mitochondrion
Which blood cells carry the oxygen to the rest of the body?
Red Blood Cells
White Blood Cells
Blue Blood Cells
Yellow Blood Cells
Red Blood Cells
Which best explains how a single-celled organism can survive without other cells?
They do not need to perform more than one function to survive.
They are able to perform all necessary functions within one cell.
They do not need any substance from outside of the cell.
They are able to perform all necessary functions within one cell.
Two black guinea pigs were crossed and they produced a litter of 4 black and 3 white guinea pigs. Which best explains this occurrence?
White fur is dominant to black fur.
White fur was the result of a mutation.
Both parents were heterozygous for black fur.
Both parents were homozygous for black fur.
Both parents were heterozygous for black fur.
What Month of the Year has 28 days?
ALL OF THEM DUH!!!!!
Which one of these is NOT a characteristic of an animal?
obtains energy by consuming other organisms
is multicellular with cells that have cell walls
takes in oxygen and releases carbon dioxide
is able to grow new cells to replace damaged cells
is multicellular with cells that have cell walls