Plant and Animal Responses

Transcription

1 H Science Name period date assigned date due date returned Directions: Using the laminated cards, match the story to its symptoms and cause. ill in the correct cause and symptoms for each effect in the chart below. Then decide if it is an internal or external stimulus. Make sure you match the card number to the correct place on the chart. ard # symptoms (response) cause (stimulus) internal or external stimulus 1 nausea, vomiting and dizziness whenever traveling motion sickness external

2 H Science ard # symptoms cause internal or external stimulus

3 H Science 31 Sweating, vomiting, fever, feeling hungry, panting, hiding during the day etc. are all ways that living organisms maintain balance or homeostasis. Use the laptop to find the definition of homeostasis. 32 Riding a bicycle requires additional energy from leg muscles. Which of the following conditions may result from this activity, and which response helps restore the body to its normal condition? A B D increased carbon dioxide in the blood can be removed by breathing faster decreased oxygen can be replaced by digesting an apple increased sugars in the blood stream can be diluted by drinking water increased salt wastes can be removed by the heart 33 What process causes a plant to wilt in response to too much or too little water? photosynthesis G respiration H transpiration dehydration 34 On leaf surfaces, guard cells that open and close in response to the amount of water available is an example of - A phototropism B constructive feedback homeostasis D respiration 3

4 H Science 35 In a germinating seed, the downward growth of roots and upward growth of stems are the plant s responses to gravity. Which statement best describes this phenomenon? G H downward growth of roots positive response to gravity upward growth of stems negative response to gravity downward growth of roots negative response to gravity upward growth of stems negative response to gravity downward growth of roots negative response to gravity upward growth of stems positive response to gravity downward growth of roots positive response to gravity upward growth of stems positive response to gravity 36 Responses in plants that result in movement away from or toward a stimulus are called A tropisms B differentiation adaptations 37 Water can move through the cell membrane of one plant cell to another to maintain homeostasis. This process helps to balance the water that is needed for proper cell function. This movement of water into an out of cells is due to: D yield turgor pressure G dialysis H oxidation perspiration 4

5 H Science 38 How does the body respond to dehydration? A raising body temperature B increasing breathing rate producing less urine D producing more sweat 39 Pollen in the air enters a person s nose. The pollen causes the person to sneeze and have a runny nose. Which of the following BEST explains why the body responds this way? to keep pollen away from other people G to destroy toxins contained in the pollen H to kill bacteria that live on pollen to force pollen to leave the body 40 ells in a person s body begin to take in large amounts of glucose from the bloodstream. A person with this type of cellular activity has most likely just - A gone to sleep B finished a meal stopped walking D begun to exercise 41 The amount of oxygen in a person s blood decreases. How will the body MOST likely respond to this change? increasing breathing rate G decreasing blood pressure H increasing body metabolism decreasing movement 5

6 H Science 42 The diagram illustrates a seed germinating. Many forces, including responses to moisture, light, temperature, and gravity are at work in this process. Which of the following correctly describes two of the seedling s responses to stimuli? G H I is positive to light, and III is positive to gravity IV is negative to temperature, and II is negative to gravity II is negative to light, and III is positive to gravity II is positive to gravity, and IV is positive to moisture 43 Dogs pant with their tongues out in order to cool off their bodies. Dogs are MOST likely to pant when the weather is - cloudy G hot and dry H raining cold and windy 6