Answer:
more nitrogen compounds
Explanation:
when water is polluted by sewage many microorganisms is present so we can deduct the 1st ans.
as water is polluted the environment is not suitable so living organisms so unpolluted water has more fish than polluted.
there cant be more oxygen in a place where it s polluted coz plants which grow under water wont grow as it is polluted
more nitrogen compounds is the answer because nitrogen compounds are made due to the reactions in polluted water.
hope this helps,
Answer:
B. the nervous system
Explanation:
The nervous system is one of the body systems that has to do with the passing signal information to and fro the BRAIN and other sensory organs e.g eyes, nose, ears etc. The nervous system is what causes an individual organism to sense and respond to environmental stimuli by passing chemical signals to the brain and back to the site of effect.
According to this question, a frog is able to leap away from a snake because danger is sensed and responded to by the NERVOUS SYSTEM. Information in form of chemical signals (impulses) are passed across the brain of the animal of a possible threat, which then sends back information for the frog to react to such danger by leaping away.
The correct option is this: LAKE VICTORIA HAS A VARIETY OF ENVIRONMENTS SUCH AS ROCKY SHORES AND MUDDY BOTTOMS; THIS ENVIRONMENT HETEROGENEITY PROMOTES SPECIATION.
Biodiversity refers to the variety of plants and animal life in a particular habitat. Biodiversity level can be high or low depending on the number of diverse plants and animals that are found in the habitat. High level of biodiversity is always preferable because of its beneficial effects on the environment.
African Lake Victoria as a water body is made up of different types of environments, therefore, different species of aquatic organisms find it easy to locate favorable niches that are suitable for their existence in the habitat. The high degree of biodiversity will enhance the continuous existence of the lake even during unfavorable conditions.
