Answer:
False.
Explanation:
The food chain may be defined as the sequential tropic levels in which the organism eat other organisms and itself being eaten by other organism. Food chain do not exist in nature.
According to the 10% energy law, the energy is lost from one tropic level to the another tropic level. The 10% energy is available to the next tropic level and the remaining amount of energy is lost as heat. No energy gain occurs as the transfer of energy takes place from the producer to consumer.
Thus, the answer is false.
Answer: I think the answer is B. measure one side with a ruler, and multiply that number by itself three times.
Explanation:
Answer;
-Measure one side with a ruler, and then cube it, or in other words multiply that number by itself and then by itself again.
Explanation;
-Volume is the quantity of three-dimensional space enclosed by a closed surface, for example, the space that a substance or shape occupies or contains.
- Volume is measured in cubic units, such as the cubic meters, cubic centimeters. The SI units of volume is cubic meters.
A cube has all edges (sides) of the same length. The volume of a cube is found by multiplying the length of any edge by itself twice.
b. ecological footprint
c. agriculture
Answer:
Biodiversity
Explanation:
The three options given don't seem to be correct...
Sustainability is how biological systems remain diverse and productive.
Ecological Footprint is the impact of human activities measured in terms of the area of biologically productive land and water required to produce the goods consumed and to assimilate the wastes generated.
Agriculture is the science of raising plants and/or animals for food, clothing or other useful products or the practice of cultivating the land or raising stock.
Biodiversity is a term that describes the number and variety of species that live in an area. It contributes to the stability and balance of ecosystems and provides ecosystem services.
Biodiversity is a term that describes the number and variety of species that live in an area. It refers to the variety of life on Earth, including plants, animals, and microorganisms. Biodiversity is important because it contributes to the stability and balance of ecosystems, and provides ecosystem services such as pollination, nutrient recycling, and water purification.
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Answer:Secondary consumers eat herbivores. They are at the third trophic level. In a desert ecosystem, a secondary consumer may be a snake that eats a mouse.
Explanation:
the bottleneck effect.
genetic drift.
natural selection.
differential migration
Answer:
The correct answer would be natural selection.
Natural selection favors the survival and reproduction of the organisms which are better adapted to the environment.
It gradually changes the allele frequency or heritable characters of a population over the generations.
Similarly, during malaria outbreak organisms which are better adapted or resistant against the disease will survive and reproduce successfully. It will increase the frequency of allele associated with resistance or adaptation against malaria.
For example, the carriers of the sickle cell anemia show protective advantages against malaria.
The correct answer is option D, Natural selection.
The survivors within a population attacked by malarial mosquito are the individuals which have high rate of survival and reproductive rates as compared to others. The genetic qualities of these individuals have proved to be beneficial in their survival and thus their future generations consists of individuals which are able to survive in the harsh environmental conditions. This mechanism of survival of the fittest is known as natural selection.
The correct answer is A. They ensure that the ecosystem is not stripped entirely of its vegetation
Answer:
A
Explanation: