Cells
What are the small parts in a cell called?
Organelles
What do the arrows represent in a food web?
Transfer of energy
Which body system contains the heart?
Circulatory
When crossing two heterozygous individuals, what is the percent probability of a recessive phenotype?
25%
What is one advantage and one disadvantage of asexual reproduction?
Advantages:requires less energy, one organism can produce a whole colony, all positive traits are passed on
Disadvantages: no diversity, cannot adapt to changing environments, short lifespans
What is the "brain" of the cell?
Nucleus
Where do autotrophs get their energy from?
The Sun and decomposers
List three body systems.
Circulatory, digestive, respiratory, excretory, muscular, skeletal, and nervous
If a trait is x-linked, will the trait be more common in males or females?
males
What part of a plant is responsible for photosynthesis?
Chlorophyll
What is the powerhouse of the cell?
Mitochondria
Where do primary consumers get their energy from?
Producers
How does the respiratory system interact with the circulatory system?
Respiratory system takes in oxygen from the environment which the circulatory system delivers to cells for cellular respiration.
What is artificial selection?
When humans decide which traits an organism should be pass to the next generation.
What is true about all living things?
All living things are made of one or more cells
What is a difference between the structures of a plant cell versus animal cells?
cell wall and chloroplasts
What organisms belong to the decomposer group?
Fungus, bacteria, and insects
Place the following in order from smallest to largest: system, organ, cell, and tissue.
Cell, tissue, organ, and system
What is natural selection?
When organisms pass traits that are beneficial to the species as a whole more often than less favorable traits.
What are the ingredients for photosynthesis?
Carbon dioxide, water, and sunlight
Most cells contain pairs of chromosomes. How many pairs of chromosomes are in those cells?
23 pairs
What would happen to a food chain if the primary consumer was removed?
There would be an increase in producers due to a lack of predators and a decrease in secondary consumers due to a decreased food source.
The digestive system breaks down food using what kind of reactions?
Chemical reactions. fats, carbohydrates, and proteins are broken down into different molecules that can be used for energy.
Which cellular structure stores instructions for a trait?
chromosome
What is the movement of particles from areas of high concentration to areas of low concentration called?
Diffusion