Answer:
<em>All of the above have caused ecological disruption</em>
Explanation:
Ecological disruption can be described as a kind of disturbance, whether of biological or non-biological origin which affects the pattern of a particular ecosystem. Disruptions might be caused due to factors such as weather changes or biotic factors such as the invasion of a predator species which disrupts the whole food web of an ecosystem. Any new species, when introduced in a stable ecosystem, will cause disruption in some way or the other.
Answer:
d. the groups will probably diverge genetically, and speciation may occur
Explanation:
The geographical isolation of two populations of a species for a longer time period leads to allopatric speciation. During the process, the isolated populations accumulate genetic variations to become adapted to the prevailing conditions of the habitat.
Accumulation of genetic variations leads to reproductive isolation between the population. After several generations, the individuals of the two isolated populations are unable to interbreed due to genetic variations. Now, these two populations are said to belong to two different species. The isolated lizard populations would also accumulate genetic variations resulting in allopatric speciation.
physical and chemical barriers that form the first line of innate defense include the acidity of the stomach, tear fluid from the eye, an un-punctured skin and mucus and cilia of the respiratory tract.
Food is digested by the stomach, a J-shaped organ. It generates acids and enzymes. Food is broken down by this concoction of digestive juices and enzymes so that it may move on to your small intestine. The digestive system includes your stomach. Humans and many other animals, including numerous invertebrates, have a muscular, hollow organ called the stomach in their gastrointestinal tracts. The stomach is a crucial organ in the digestive system and has a dilated configuration.
In animals, the respiratory system is divided into the respiratory tract, which is engaged in the respiration process. The respiratory epithelium and respiratory mucosa line the respiratory tract. There are upper and lower airways in the respiratory tract.
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Answer:
True
Explanation:
lungs are responsible for the excretion of gaseous wastes, primarily carbon dioxide from cellular respiration in cells throughout the body.
Answer: A. Lava flows block a river
Explanation: I just took the test