Concept explainers
Videos
Which of the following is probably the most important factor in the distribution of organisms in the environment?
- a. light
- b. temperature
- c. salinity
- d. water availability
- e. pH
Introduction: A system formed with the help of interactions between organisms and their physical environment is known as the ecosystem. The impact of the environment on the distribution of species and the way the organisms are physiologically adapted to their environments is investigated under physiological ecology. Temperature, light, pH, salinity, and water availability are several non-living factors influencing the way organisms are distributed in an environment.
Answer to Problem 1TY
Correct answer: Temperature plays the most important role in distributing organisms in the environment. Hence, the correct answer is option b.
Explanation of Solution
Reason for correct answer:
Most living organisms are unable to regulate their body temperatures. Thus, the ecological distribution of these organisms depends upon the temperature of that particular geographical area. The temperature also affects the biological processes of an organism. Therefore, temperature plays a very prominent role in distributing the biological organisms in the environment.
Option b. is given as “temperature”.
Temperature regulates body temperature and affects biological functioning, thus playing a prominent role in deciding the distribution of flora and fauna in the environment. Hence, the correct answer is option b.
Reasons for incorrect answer:
Option a. is given as, “light”.
Sunlight plays an important role in the photosynthesis process of plants. The growth of the plants is affected when sufficient sunlight is not provided to them. Aquatic plants receive less sunlight as water acts as a barrier. Sunlight does not reach the plant species lying at the depth of the water, thereby affecting its growth. Thus, light does play an important role in the survival of organisms. However, the temperature is more important in deciding the distribution of living organisms. Hence, option a. is incorrect.
Option c. is given as, “salinity”.
The growth of plants in highly saline soils is inhibited due to high salt concentration. High salinity also affects osmosis in the organisms which are present in marine as well as freshwater environments. Thus, salinity does impact the survival of the biological organisms. However, temperature plays a prominent role in their distribution. Hence, option c. is incorrect.
Option d. is given as, “water availability”.
Water availability is important for the survival of biological organisms. Plants require water to perform photosynthesis and other living organisms also need water for normal functioning of their body. Thus, water is important for survival but temperature is the most necessary factor which decides the distribution of organisms in the environment. Hence, option d. is incorrect.
Option e. is given as, “pH”.
When the soil pH is about 6.5, soil nutrients are most readily available to plants. This makes the soil optimum for the growth and survival of plants. Thus, pH determines the survival of plants but temperature determines the geographical distribution of organisms. Hence, option e. is incorrect.
Hence, the options a., c., d., and e. are incorrect.
Thus, temperature is one of the most prominent factors determining the distribution of flora and fauna in the environment.
Want to see more full solutions like this?
Chapter 54 Solutions
Biology
- Explain down bellow what happens to the cell in pictures not in words: Decreased pH in mitochondria Increased ATP Decreased pH in cytosol Increased hydrolysis Decreasing glycogen and triglycerides Increased MAP kinase activity Poor ion transport → For each one:→ What normally happens?→ What is wrong now?→ How does it mess up the cell?arrow_forward1.) Community Diversity: The brown and orange line represent two different plant communities. a. Which color represents the community with a higher species richness? b. Which color represents the community with a higher species evenness? Relative abundance 0.1 0.04 0.001 2 4 6 8 10 12 14 16 18 20 22 24 Rank abundance c. What is the maximum value of the Simpson's diversity index (remember, Simpson's index is D = p², Simpson's diversity index is 1-D)? d. If the Simpson's diversity index equals 1, what does that mean about the number of species and their relative abundance within community being assessed?arrow_forward1.) Community Diversity: The brown and orange line represent two different plant communities. a. Which color represents the community with a higher species richness? b. Which color represents the community with a higher species evenness? Relative abundance 0.1 0.04 0.001 2 4 6 8 10 12 14 16 18 20 22 24 Rank abundance c. What is the maximum value of the Simpson's diversity index (remember, Simpson's index is D = p², Simpson's diversity index is 1-D)? d. If the Simpson's diversity index equals 1, what does that mean about the number of species and their relative abundance within community being assessed?arrow_forward
- what measures can a mother to take to improve the produce of her to milk to her newborn baby ?arrow_forward1. Color the line that represents all ancestors of the Eastern white pine tree green (but only the ancestral line NOT shared with other organisms) 2. Oncle the last common ancestor of the Colorado blue spruce tree and Eastern white pine tree. 3. Put a box around the last common ancestor of the sugar maple tree and the dogwood tree. 4. Put a triangle around the last common ancestor of the red pine tree and the american holly bush. 5. Color the line that represents all ancestors of the Ponderosa pine tree red (including all shared ancestors). 6. Color the line that represents all ancestors of the American elm tree blue (including all shared ancestors). 7 Color the line that represents all ancestors of the Sabal palm tree purple (including all shared ancestors) 8. Using a yellow highlighter or colored pencil, circle the clade that includes all pine trees. 9. Using a orange highlighter or colored pencil, circle the clade that includes all gymnosperms 10. Can you tell…arrow_forwardYou have been hired as a public relations specialist to give invertebrates a good name. After all, they are much more than just creepy crawly bugs! Your first task though is to convince yourself that is true. The best way to do that is to start close to home. Find something in your house that is a product obtained directly from an invertebrate or only due to an invertebrate’s actions. Describe the product, its function and utility, as well as any human manufactured alternatives. Be sure to highlight the advantages of obtaining this directly from nature. Keep in mind, a product can be something you use, wear, eat, or enjoy for its visual appeal.arrow_forward
- Use the following tree diagram to answer Questions #8-10. 8) Which of the following two animals are the most closely related based on the tree to the left? a) Pig and camel b) Hippo and pig c) Deer and cow 9) CIRCLE on the tree diagram where the common ancestor between a hippo and a cow is. 10) Put a SQUARE on the tree diagram where the common ancestor between a pig and a peccary is.arrow_forwardExplain: Healthy Cell Function Overview→ Briefly describe how a healthy cell usually works: metabolism (ATP production), pH balance, glycogen storage, ion transport, enzymes, etc. Gene Mutation and Genetics Part→ Focus on the autosomal recessive mutation and explain: How gene mutation affects the cell. How autosomal inheritance works. Compare the normal and mutated gene sequences simply. → Talk about possible consequences of a faulty hydrolytic enzyme.arrow_forwardCan you fill out those termsarrow_forward
- Explain down bellow what happens to the cell: Decreased pH in mitochondria Increased ATP Decreased pH in cytosol Increased hydrolysis Decreasing glycogen and triglycerides Increased MAP kinase activity Poor ion transport → For each one:→ What normally happens?→ What is wrong now?→ How does it mess up the cell?arrow_forwardAn 1100 pound equine patient was given 20 mg/kg sucralfate 3 times a day, 2.8 mg/kg famotidine twice a day, and 10mg/kg doxycycline twice a day. Sucralfate comes as a 1 gm tablet, famotidine as 20 mg tablets, and doxycycline as 100mg tablets. All are in bottles of 100 tablets.How many total mg are needed for the patient and how many tablets of each would be needed to provide each dose?How many bottles of each would be needed to have available if this patient were to be on this drug regimen for 5 days?arrow_forwardThe patient needs a solution of 2.5% dextrose in Lactated Ringer’s solution to run at 75 ml/hr for at least the next 12hours. LRS comes in fluid bags of 500 ml, 1 Liter, 3 Liters and 5 Liters. How can a 2.5% solution be made by adding50% dextrose to the LRS?arrow_forward
Basic Clinical Lab Competencies for Respiratory C...NursingISBN:9781285244662Author:WhitePublisher:Cengage
Concepts of BiologyBiologyISBN:9781938168116Author:Samantha Fowler, Rebecca Roush, James WisePublisher:OpenStax College
Human Biology (MindTap Course List)BiologyISBN:9781305112100Author:Cecie Starr, Beverly McMillanPublisher:Cengage Learning
Biology 2eBiologyISBN:9781947172517Author:Matthew Douglas, Jung Choi, Mary Ann ClarkPublisher:OpenStax