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jekas [21]
3 years ago
14

Explain how the reduction in biodiversity can effect the ecological balance in the dam

Biology
1 answer:
hodyreva [135]3 years ago
6 0
<span>Damming a river has a variety of effects on the freshwater ecosystem, more than just altering the flow from A to B.  Dams create calm bodies of water, changing overall temperature regimes and sediment transport, leading to conditions which tend to favour generalist species. Loss of specialist species, particularly endemics, changes the community structure and leads to biotic homogenization.  A dam will withhold sediment in the reservoir, not just decreasing the amount of substrate available to local freshwater species, but even impacting diadromous, estuarine and marine species much further downstream.  The competition between resident species for food and breeding sites will increase as damming isolates populations, and perhaps more importantly, damming completely restricts migratory fish species.  Isolation may lead to decreases in genetic diversity and therefore puts species at greater risk from disease.  All of these effects may be exacerbated by changes in the surrounding land use.  Overall, damming river flow will lead to both a loss of native species, but also an increase in exotic species which are more likely to become established in degraded habitats. For this reason, dams are one of the greatest global threats to freshwater biodiversity.</span>
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Biogenic minerals are minerals produced by living organisms. Two commonly seen biogenic minerals are , which is often produced b
goblinko [34]

Answer:

The preferable words for the fill in the blanks will be -  

Aragonite, calcite

Explanation:

  • Biogenic minerals are minerals produced by living organisms. Two commonly seen biogenic minerals are  <u>aragonite</u>, which is often produced by coral and other invertebrates, and  <u>calcite</u>, which often makes up the shell material of mollusks such as clams.
  • Biogenic minerals are the mineral substances that are produced by geologic processes. For living organisms, it is their most commonly produced byproduct.
  • E.g; vertebral bones, shells of Oyster, mussel, and clam (aragonite), etc.

8 0
3 years ago
Describe adaptations animals have that make them successful? (pleaseeeeee helppppp)
Serhud [2]

Answer: Camels adapt by having a hump and having the ability to store water and food in their hump so they will survive in the desert.

Explanation:

8 0
3 years ago
Number the steps from when the stimulus received to when the body reacts​
Natasha2012 [34]

The given question is not complete. The complete question is:

Number the steps from when a stimulus is received to when the body reacts.

The stimulus is received by sensory receptors.

Motor neurons cause muscles to contract so the body can react to the stimulus.

The brain processes the information through interneurons.

Interneurons transfer response information to motor neurons.

Sensory neurons carry stimulus information to the brain or spinal cord.

Answer:

The body of an organism like humans reacts towards each of the external stimuli of the environment like the smell of the food and even to the internal stimulus like hunger or pain. Thus, it can be considered that one is stimulated all the time and reacts towards the constituents found in the surroundings. The entire procedure of the organism reacting towards the stimuli are as follows:  

1. The sensory receptors receive the stimulus.  

2. The stimulus information is further carried to the spinal cord or the brain by the sensory neurons.  

3. The processing of the information in the brain takes place with the assistance of interneurons.  

4. After that the response information is mediated towards the motor neurons by the interneurons.  

5. The motor neurons eventually result in the contraction of muscles showing that the body is reacting towards the stimulus.  

3 0
3 years ago
A moon has less mass than a star and more mass than a planet it orbits.<br> •True<br> •False
anygoal [31]
It is false bc the mass of moon is less than 1/2 of earth, and earth is tinier than ANY STAR
5 0
3 years ago
Responsible for the flow of<br> ___, and other ______, and<br> hormones to and from.
egoroff_w [7]

Answer:

kidney

Explanation:

pancreas to regulate salt

6 0
3 years ago
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