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In what way do humans impact ecosystems?
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By modifying the environment through technology.
What role do chloroplasts play in the sea slug and algae relationship?
Chloroplasts allow the sea slug to use energy from the sun.
How does blood pH regulation impact human physiology?
By affecting enzyme function within the circulatory system.
Explain the role of the circulatory and respiratory systems in oxygen delivery to body cells.
The circulatory system delivers oxygenated blood from the respiratory system to body cells.
How do organisms like axolotls regenerate lost body parts?
Through mitotic cell division.
Why do kittens from the same litter often share similar characteristics?
Because they inherited similar genes from the same parents.
Why don't bioengineered blood vessels trigger an immune response?
They are designed or selected not to provoke immune reactions.
What components are necessary for a self-sustaining ecosystem?
Producers, decomposers, light, and water.
How does mosquito resistance to spray develop?
Genetic variations can lead to resistance.
How does UV light influence melanin production?
UV light triggers the transcription and translation of the melanin gene, illustrating how environmental factors affect gene expression.
What factor keeps species stable in their ecological niche?
Favorable adaptations.
How do trees regulate temperature to maintain homeostasis?
By responding to environmental changes.
What are examples of the body's feedback mechanisms in response to stress?
Mechanisms like hormone release and heat regulation.
What function does mitochondria perform in cells?
Transfer energy to form ATP.
What is the role of neurotransmitters in nerve cell communication?
Neurotransmitters are chemical messengers that facilitate communication between nerve cells.
What genetic information does a zygote contain?
All the necessary genetic information for growth and development.
What happens to an ecosystem after a wildfire over time?
The ecosystem will recover and restore to a state similar to the original.
Which organisms are considered carnivores in a food web?
Toads and snakes.
What is the purpose of DNA replication during the cell cycle?
To provide exact genetic copies before cell division.
What processes contribute to genetic variability?
Meiosis, fertilization, and mutation.
How do single-cell organisms maintain homeostasis?
Through the coordination and functioning of organelles.
What pest control method is least harmful to the environment?
Using traps baited with sex hormones.
What could be the consequence of a decline in turtle populations within an ecosystem?
Negative effects on other species due to the interdependence of living organisms.
Which small molecules are building blocks for complex organic molecules?
Glucose and amino acids.
Which structure most directly affects the nutritional needs of an embryo?
The placenta.
In an energy pyramid, where are herbivores located?
In level two.
Why do freshwater fish die if placed in saltwater?
Due to severe dehydration resulting from diffusion.
Give an example of competition between species.
Mice and chipmunks both eating sunflower seeds.
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