Levels of Organization
Lists the levels of organization of an animal
Cell - tissue - organ - organ system - organism
A pine tree has organs that carry out specific functions needed for survival. What function do the tree’s leaves carry out?
capture sunlight to make food, photosynthesis
Compare a dog's sight sensory receptors to humans
Dogs have more sight receptors so they are able to see movements humans may not notice.
What is Homeostasis?
Ability to balance the internal conditions like temperature, water levels, and blood sugar levels, even when the environment changes.
Which systems work together in maintaining the carbon dioxide through breathing?
Respiratory and circulatory system
Animal's epithelial tissue is similar to which plant's tissue, why?
It is similar to dermal tissue, both used for protection.
Which statement describes how the tissue systems work together to maintain homeostasis in the plant?
A. Dermal tissue stores excess water and keeps it from moving to other parts of the plant.
B. Vascular tissue transports excess nutrients to ground tissues, where they are expelled by the roots.
C. Vascular tissue transports water to the ground tissue, excess water is released by the dermal tissue into the air.
D. Ground tissue makes food, stores it, and then transports the stored food to the stem, roots, and leaves of the plant.
C
Sequence of events in the process of sensing
- sensory receptor cell
- sensation
- sensory neuron
- stimulus
1. stimulus
2. sensory receptor cell
3. sensory neuron
4. sensation
A rat approaches a piece of rotting fruit, smells it, takes a small bite, and then runs away. Which statement best explains the reason for the rat’s behavior?
A. The rat runs away from the fruit to process the new sensory information.
B. Sensory receptors in the rat’s whiskers respond to input about the texture of the fruit.
C. The rat’s chemical receptors detect chemicals in the fruit that alert the rat to possible danger.
D. Information gathered by the rat’s auditory receptors signal that the environment around the fruit is not safe.
C. The rat’s chemical receptors detect chemicals in the fruit that alert the rat to possible danger.
What does leaves, stem and roots do for the plant
Leaves- gas exchange, makes food
Stem- transport nutrients
Roots- Anchors plant and store nutrients
Describe how cells, tissues, organs, and organ systems are dependent upon one another.
The cells and tissues making up the various organs in the different organ systems are all connected and all perform different functions to maintain homeostasis and keep the body surviving and healthy.
Describe the process of photosynthesis, inputs and outputs.
A sensory response happens when the body reacts to something detected by the senses, like pulling your hand away from something hot. A memory response happens when the brain recalls stored information or past experiences, such as remembering a name or a lesson.
Needs of leaf-cutter ants/ Needs of liana vines / or both
A. water C. energy from sunlight B. nutrients from soil D. gases from air E. energy from sugar
A. water- both
B. nutrients from soil - vines
C. Energy from sunlight - vines
D. gases from air- both
E. energy from sugar- both
Give an example of plant's response to its environment in terms of gravity
When a seed sprouts, the roots grow against gravity to reach for water and other nutrients.
Explain why a damaged section of cardiac muscle in the heart would have an impact on other organ systems.
All organs in the body need oxygen and nutrients to work properly, and they also need carbon dioxide removed. If the heart is damaged, it cannot pump blood well, so other organ systems receive less oxygen and nutrients. This can cause the body’s systems to work less efficiently.
Both cells and body systems must work together to maintain healthy cells and bodies. What organelles transport materials around cells, and what tissues, organs, or organ systems perform this action in plants?
In plants, the vascular system, composed of xylem and phloem, transports materials through the plant’s body
Which statement describe nerve tissue or blood tissue or both
A. carries away waste products B. passes signals using chemicals called hormones C. passes signals using electrical impulses D. brings nutrients and oxygen to cells E. maintains homeostasis in the body
A. carries away waste products - blood B. passes signals using chemicals called hormones- blood C. passes signals using electrical impulses -nerve D. brings nutrients and oxygen to cells - blood E. maintains homeostasis in the body- both
Scientists are studying responses in mice that are newly introduced to human touch. The mice are kept in individual habitats. A sensor beneath the habitats measures vital signs such as heart rate and temperature. Describe what happens to heart rate and temperature in the beginning and how does it change over time when treats are given to the mice.
In the beginning, heart rate and temperature increase and stabilize after few minutes and when the treat is added the mice wait for the scientist instead of having a flight response.
Explain how the respiratory system and the circulatory system work together to transport oxygen and to remove wastes from the body.
When a person breathes in oxygen it is sent through the respiratory system to the lungs. There, oxygen passes through the tissue into the blood. The heart circulates blood throughout the body, delivering oxygen to tissues and picking up waste, including gases, which are exhaled by the respiratory system.