Cells
This process uses sunlight, carbon dioxide, and water to make glucose in plants.
What is photosynthesis
This is the basic unit of structure and function in all living things.
What is a cell
This system is responsible for pumping blood throughout your body.
What is the circulatory system
This term describes an organism with two identical alleles for a trait.
What is homozygous
What must be present within a species for evolution to occur?
What is genetic variation
The organelle in plant cells where photosynthesis takes place.
What is the chloroplast
A group of similar cells working together forms this.
What is a tissue
This system includes the brain and spinal cord and controls body responses.
What is the nervous system
The genetic makeup of an organism is called this.
What is genotype
By comparing fossils in higher sedimentary layers with fossils in lower sedimentary layers, scientists can learn
I. Which types of organisms were common during various time periods.
II. How species have evolved over time.
III. The relative age of different species.
a. III b. II and III c. II only d. I, II, and III
What is d. I, II, and III.
This gas is released by plants during photosynthesis.
What is oxygen
These tiny structures inside cells carry out specific functions, like the mitochondria and nucleus.
What are organelles
The lungs are part of this body system.
What is the respiratory system
What is the phenotype ratio for a cross between two heterozygous tall (Tt) pea plants, where tall is dominant over short?
What is 3 tall : 1 short
A population of shorebirds has been observed for 50 years. The birds eat small shellfish and worms found in the sand. Over time, the average beak length has increased. What is the most likely reason for the trend in the data?
A. Longer beaks allowed the birds to access food deeper in the sand.
B. Short-beaked birds migrated to a different habitat.
C. The climate became colder, requiring longer beaks for heat retention.
D. Predators only targeted short-beaked birds.
What is A. Longer beaks allowed the birds to access food deeper in the sand.
What are the two main reactants in cellular respiration?
What are glucose and oxygen
Put the following in order from smallest to largest: tissue, cell, organ, organ system.
What is cell → tissue → organ → organ system
Name two organs in the digestive system.
What are the stomach and small/large intestine
Both parents are carriers of cystic fibrosis (Cc). What’s the chance their child will have the disease?
What is 25%
A population of caterpillars comes in three colors: green, brown, and black. After a forest fire, the color population shifted. What most likely caused this shift in the color of caterpillars?
A. The fire caused mutations turning caterpillars black.
B. Darker caterpillars were better camouflaged in the burned forest.
C. Green caterpillars changed color when exposed to smoke.
D. Green caterpillars migrated out of the area.
What is B. Darker caterpillars were better camouflaged in the burned forest.
Compare the energy purpose of photosynthesis and cellular respiration.
What is photosynthesis stores energy in glucose, and cellular respiration releases that energy
The rigid structure that supports and protects plant cells but is not found in animal cells.
What is the cell wall
This system helps fight diseases and includes white blood cells.
What is the immune system
In humans, free earlobes (F) are dominant to attached earlobes (f). What percent of offspring from a FF x Ff cross will have attached earlobes?
What is 0%
Birds with medium beaks are less likely to survive than those with very large or very small beaks. What type of selection is this?
What is disruptive selection