Internal And External Environment
Muhtasari
Step outside on a harmattan morning in Jos and then again at midday in Lagos in the rains, and the air around you could not be more different: cold and dry, then hot and humid. Yet a healthy goat standing in either place keeps almost exactly the same body temperature, the same blood chemistry, the same steady internal state. That contrast, a constantly shifting outside against a remarkably steady inside, is the starting idea of environmental physiology and the foundation for everything this section of the syllabus will teach.
In this lesson you will learn what farm animal scientists mean by the internal environment and the external environment, the specific factors that make up each one, and how the two relate: the animal's body works continuously to hold its internal environment steady despite an external environment that never stops changing. Grasp this one relationship and the next three lessons, homeostasis, the effects of climate, and how farmers modify the environment, will all make immediate sense.
Malengo
- Define the internal environment of a farm animal
- Define the external environment of a farm animal
- Give examples of external environmental factors affecting farm animals
- Explain the relationship between the internal and external environment
- Explain how animals respond to changes in their environment
Maelezo ya Somo
Jisajili ili Uendelee
Tengeneza akaunti ya bure ili kupata rasilimali zote za kujifunza, maswali ya mazoezi, na kufuatilia maendeleo yako.
Tathmini ya Somo
Hongera kwa kukamilisha somo la Internal And External Environment. Sasa kwa kuwa umechunguza dhana na mawazo muhimu, ni wakati wa kuweka ujuzi wako kwa mtihani. Sehemu hii inatoa mazoezi mbalimbali maswali yaliyoundwa ili kuimarisha uelewaji wako na kukusaidia kupima ufahamu wako wa nyenzo.
Utakutana na mchanganyiko wa aina mbalimbali za maswali, ikiwemo maswali ya kuchagua jibu sahihi, maswali ya majibu mafupi, na maswali ya insha. Kila swali limebuniwa kwa umakini ili kupima vipengele tofauti vya maarifa yako na ujuzi wa kufikiri kwa makini.
Tumia sehemu hii ya tathmini kama fursa ya kuimarisha uelewa wako wa mada na kubaini maeneo yoyote ambapo unaweza kuhitaji kusoma zaidi. Usikatishwe tamaa na changamoto zozote utakazokutana nazo; badala yake, zitazame kama fursa za kukua na kuboresha.
- The fluid medium inside an animal's body, mainly blood and tissue fluid, in which its cells actually live is called the: A. External environment B. Internal environment C. Ecosystem D. Habitat Answer: B
- Which of the following is an EXTERNAL environmental factor acting on a farm animal? A. Blood glucose level B. Body temperature C. Relative humidity of the housing D. Blood pH Answer: C
- Which of the following is an INTERNAL environmental variable of a farm animal? A. Air temperature B. Water balance C. Daylength D. Wind Answer: B
- The general relationship between an animal's internal and external environment is best described as: A. Both remain fixed and unchanging at all times B. The internal environment is kept stable despite a constantly changing external environment C. The internal environment changes to match the external environment exactly D. The external environment has no effect on the internal environment Answer: B
- A goat seeking shade under a tree at midday to avoid direct sunlight is an example of a: A. Physiological response B. Behavioural response C. Managed response D. Genetic response Answer: B
Jisajili ili Uendelee
Tengeneza akaunti ya bure ili kupata rasilimali zote za kujifunza, maswali ya mazoezi, na kufuatilia maendeleo yako.
Jisajili ili Uendelee
Tengeneza akaunti ya bure ili kupata rasilimali zote za kujifunza, maswali ya mazoezi, na kufuatilia maendeleo yako.
