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vekshin1
3 years ago
10

In general, why might ecologists be concerned when new invasive species arrive in an ecosystem?

Biology
1 answer:
DaniilM [7]3 years ago
7 0
Invasive species might overpopulate in the area which might cause the native species to be threatened, have to leave, or decrease in amount.
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How would you compare a circle to an ellipse?
Vesnalui [34]

Answer:

A circle is a closed curved shape that is flat. ... Instead of having all points the same distance from the center point, though, an ellipse is shaped so that when you add together the distances from two points inside the ellipse (called the foci) they always add up to the same number.

Explanation:

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2 years ago
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A basic observation of a star is how bright it appears. This brightness is known as the star's
Oxana [17]
Star brightness is defined by either <span>D. apparent magnitude - when we measure it from Earth (that is how bright it is from Earth) - this is the closest to "basic observation" and the best answer

or by absolute magnitute - how bright it would be at a certain distance (this allows to compare the brightness).


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4 0
3 years ago
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Help please!! thank you
san4es73 [151]

Answer:

I think stationary

Explanation:

the gravitational force and normal force cancel out and make it balanced aka stationary

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2 years ago
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Identify the phase of mitosis for each plant cell diagram shown below.
madreJ [45]

Answer:

1. Metaphase

2. Prophase

3. Telophase

4, 5, 6, 8. Interphase

7. Anaphase

Explanation:

Mitosis is a cell division involving the formation of two genetically daughter cells. The process of mitosis involves stages including: interphase, prophase, metaphase, anaphase and telophase.

Interphase is the resting stage of the cell. It is th stage where the cell prepares for the division. Numbers 4, 5, 6, and 8 in the image are stages of interphase.

Prophase is the stage where the chromosomes become visible and arrange in pairs. Number 2 in the image depicts a plant cell in prophase stage.

Metaphase is the stage where the chromosomes align at the equator/middle of the cell. This alignment orients the chromosomes for separation. Image 1 depicts this metaphase stage.

Anaphase stage is the stage where the chromosomes separate into opposite poles of the cell. Image 7 depicts the anaphase stage of this plant cell.

In the Telophase stage, the cell plate forms to divide the plant cell into two. This is shown in image 3.

6 0
2 years ago
PLEASE HELP ME PLEASE!!!
inna [77]

Answer:

D. The oldest rock is found in the bottom layer of a rock formation.

Explanation:

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