Answer:
Theories may be revised over time as information is discovered or technology is developed.
Explanation:
A scientific theory is a term used when a statement tries to explain a natural phenomenon of nature based on scientific facts. In short, a theory is the representation of a set of hypotheses that was confirmed through an experiment and that tries to explain a phenomenon, but leaves room for revisions and updates to its explanation.
For this reason, we can say that theories are reformulated, revised and even discredited, when the advancement of scientific knowledge and technology allows the creation of new studies that show a different explanation and more consistent with reality.
Answer:
The correct answer is e. secondary and tertiary consumers
Explanation:
In the given food chain pepper plants are the producer which are consumed by snails and grasshoppers so grasshoppers and snails are primary consumers. Spiders are secondary consumers as they eat primary consumers like grasshoppers.
Shrew eat animals that are primary and secondary consumers like snail and spiders so when shrew eat primary consumers it becomes secondary consumer and when it eats secondary consume like spiders than shrew becomes a tertiary consumer.
Therefore the shrew occupies the trophic level of secondary and tertiary consumers.
Answer:
The coral reefs, mangrove forest, and salt marshes are disappearing due to pollution, over exploitation by humans, and climate change.
Explanation:
Corals are aquatic animals. They form calcium carbonate deposits in the shallow seawater which becomes coral reefs. The corals feed on bacteria, algae. The coral reef provides a microenvironment for many aquatic fishes, plants, and animals. The coral reef acts as the keystone species of the aquatic habitat. That's why they are important for the survival of different aquatic life. The human activities like overfishing, marine pollution causes the degradation of coral reefs. The pollution kills many algae, bacteria, which are the foods of corals. Therefore, they die.
The mangrove and salt marshes are present near the coast. They live in saline waters. Mangrove provides a protective environment by preventing sea tides, home for many organisms.
The salt marshes are formed due to the accumulation of sea salts, and soils in the coastlines. They are seen also at river banks. The salt marshes are provided with grasses. It helps in soil fertility and provides habitat to different organisms.
Both the salt marshes and mangroves forest destroys by over-cultivation, aquaculture, and industrialization near the coast. The construction of dams also damages the mangrove and salt marshes. Mangroves are cut down for timber, fodder purposes. Pollution and climate change also the major cause of the disappearance of this ecosystem.
It would be similar to bass dna since trout is another kind of fish like bass. They come from the same family group so it would be more similar to it.