Which describes an example of ecological succession?
a) a caterpillar developing into a butterfly.
b) a meadow replacing a pond in its flood plain.
c) a climate gradually changing over many eons and becoming colder.
d) the replacement of a native species of animal with an invasive species.

The correct option is B: A meadow replacing a pong in its flood plain

Explanation:

Ecological succession is the process of change in ecological communities during which the species structure gradually change with time. Species structure within an ecological community keeps changing with time until a relatively stable community, otherwise known as climax community is reached.

Depending on the status of the habitat, succession are of different types;

Both primary and secondary succession in ecological communities eventually lead to formation of stable climax communities if left undisturbed. The species structure will keep changing till a relatively stable community structure is established.

A meadow which is a type of grass replacing a pond in its flood plain is an example of ecological succession in an aquatic community. In this case, the species within the flood plain is being replaced by grasses. The replacement of native species of animal with invasive species cannot be considered as succession but rather an invasion.

Hence, the correct option is B.

complete the square on the right side of the equation;

-5(x + 0)^2 + 15

answer: d. y = -x^2 + 15

d concave shape of wave rock

explanation:

the concave shape of wave rock is a very good evidence that supports the evolution of earth due to chemical weathering. if we talk about structure of   wave rock, studies have estimated that it is around 2.7 billion years old. it also serves as the foundation of evidence that it was the place where australian continent began to form.

how the structure of wave rock was created?

studies suggest that structure of wave rock was created when the surrounded area was started to weather due to which deposition of material started on the part of land which now contains wave rock.

the structure of wave rock is considered to be one of the best-known landforms in australia. at the height of around 15 cm, there can be found flared slopes which formulate the margins of hyden rock. it is now assumed by geologists that wave rock was created by subsurface water-induced weathering and not by glaciers, waves or wind.

due to deposition of material over the period of long time, the wave rock became tougher and tougher due to weathering from surrounding terrain. this makes it a physical evidence that supports   the evolution of earth due to chemical weathering.

hope it !