Introductory
What part of the plant anchors the plant into the soil and absorbs water and minerals?
What are the roots?
The __________ is an opening or pore on the underside of a leaf that allows CO2 to enter a leaf and water and O2 to exit the leaf.
What is a stoma?
The female reproductive and endocrine systems work interactively for which main purpose?
What is to control hormone levels to prepare the body for pregnancy?
What is the importance of the root hairs to the stems and leaves of the plant?
What is root hairs increase the surface area of the roots for nutrient and water?
During the final stages of human gestation, receptors for the hormone oxytocin increase on the smooth muscle cells of the uterus. The release of oxytocin during labor stimulates the smooth muscle tissue in the wall of the uterus. The vigorous contraction of the uterine smooth muscle causes more oxytocin, which in turn causes the uterine wall to contract more vigorously.
What type of feedback loop is characterized by an increased response to stimuli?
What is a positive feedback loop?
Which part of a plant has a broad flat surface in which photosynthesis occurs?
What are the leaves?
Plants can move toward and away from sunlight. Moving toward sunlight is called a positive response, and moving away from sunlight is called a negative response.
______________ is a plants response to sunlight.
What is phototropism?
How do the circulatory system and immune system work together to respond to an injury?
What is by increasing blood flow which carries white blood cells to the site of the injury?
Cytokinins are a class of plant hormones that help regulate growth by promoting cell division. Cytokinins are produced mainly in meristematic tissue where most plant growth occurs.
Which system carries cytokinins produced in the roots to the rest of the plant?
What is the vascular system?
The outermost layer of plant stems in dicotyledons consists of epidermal cells and guard cell that surround the stomata. The epidermal cells are usually covered with a waterproof layer that provides protection from injury and water loss. The stomata allow gas exchange.
The epidermal cells and stomata have functions similar to those of which two human body systems?
What are the integumentary and respiratory systems?
What is the male gamete (sperm) of a plant?
What is pollen?
The ______ of a plant increases the surface area of the roots and allow them to absorb more water and minerals.
What are the root hairs?
Which two body systems must directly interact for vertebrate organisms to exchange gases?
What are the circulatory system and the respiratory system?
Leaves are part of a plant's shoot system.
The xylem tissue in leaves transports?
What is the water and minerals that are absorbed by the roots?
Fruits grown in hot climates are usually less sweet than those grown in cooler temperatures. The high temperatures increase the rate of respiration in the plants, thus reducing the sugar content in some fruits.
Why does increased respiration in the leaves and stems reduce the sugar content in the fruits of a plant?
What are sugars are produced in the leaves are used as energy instead of being stored in fruits?
Which body system supports the body, protects internal organs, aids in movement, stores minerals such as calcium, and makes red blood cells?
What is the skeletal system?
Eggs are stored in the ________ of both plants and animals?
What is the ovary?
During the final stages of human gestation, receptors for the hormone oxytocin increase on the smooth muscle cells of the uterus. The release of oxytocin during labor stimulates the smooth muscle tissue in the wall of the uterus. The vigorous contraction of the uterine smooth muscle helps push the baby through the birth canal so that delivery can occur.
This process involves the interaction of which organ systems?
What are the endocrine, muscular and reproductive systems?
An animal can wound a tree by scratching away the bark. The tree can respond to the wound in many ways. Usually, sap covers the wound and then the tree will have new growth.
What process worked most directly with the transport system to heal the wound?
What is cellular reproduction?
Scientists studying illnesses caused by chemically contaminated food conduct research to minimize the effects of these diseases on society. These chemicals harm the body through interactions between the digestive system and the immune system.
Scientists conducting this research are likely to describe the interactions between the digestive and the immune system as -
What are chemicals enter the digestive system through contaminated foods, once in the body, the chemical contaminants impair the body's ability to fight off infectious diseases?
Which body system transports oxygen and nutrients to every living cell in the body, and removes waste products such as CO2?
What is the vascular system?
(What is the circulatory system?)
The glands that control and secrete hormones in the body are called?
What are endocrine glands?
Kidneys are part of the excretory system in a human body. They purify the impure blood and send it back to the rest of the body.
Which system is mainly responsible for the transport of plasma to the kidneys?
What is the circulatory system?
Why do some types of plants become dormant in winter?
What is to enable the plant to conserve energy?
If a plant responds to touch, what tropism is being displayed?
Thigmotropism