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3 years ago

9

a comet is cruising through the solar system at a speed of 50,000 kilometers per hour for 4 hours time what is the total distanc

e traveled by the comet during this time

1 answer:

xeze [42]3 years ago

7 0

50,000 x 4 = 200,000

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Fleas are commonly seen on the bodies of dogs. These fleas attach themselves to the host and draw blood as nourishment. Apart fr

Slav-nsk [51]

I believe the correct answer among the choices listed above is option A. Parasitism is the kind of interaction that is shown here. Parasitism is a kind of relationship where one feed off the other. Fleas here are referred to as the parasite and the dog is the host.

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3 years ago

Which structure of a paramecium holds a "reserve copy" of all the cell's genes?

nadya68 [22]

<span>The structure of a paramecium that holds a "reserve copy" of all the cell's genes is the micro nucleus.
</span>The micro nucelus is one of the <span>two kinds of </span>nuclei the paramecium has. The other is the<span> large ellipsoidal </span>nucleus<span> called a macronucleus. Every paramecium must have at least one small </span>nucleus<span> called a </span>micronucleus. The micronucleus is a storage site for the germline genetic material of the organism.

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3 years ago

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Which of the following factors does NOT influence biodiversity?

Oliga [24]

Where is the image of the object

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3 years ago

Gypsy moths kill trees by

denis23 [38]

Answer:

The correct answer is - destroying their leaves.

Explanation:

Gypsy moths are the most important moth species as their caterpillar defoliate the leaves of the trees, shrubs, and other plants and ultimately kills them.

These moths destroy most of the leaves or separate the leaves from the trees. These moths lay their egg on the leaves of the trees and plants and their caterpillar eat these leaves for food and nutrition.

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3 years ago

A biology class is studying the effect of temperature on the amount of growth of duckweed in an aquarium. What type of data will

iragen [17]

Answer:

$\boxed {\boxed {\sf They \ will \ gather \ quantitative \ data \ using \ a \ thermometer \ and \ a \ balance}}$

Explanation:

First, let's identify the tools needed.

Since the biology class is studying the temperature, they will likely need a <u>thermometer</u>. Also, they are gathering information about the growth of the plants. This could use a <u>balance </u>of a meterstick.

Next, recall the difference between quantitative and qualitative data.

<u>Quantitative</u>: Measurable and numerical results found using scientific instruments/devices
<u>Qualitative</u>: Data found using the senses, such as descriptions and diagrams.

Since the class is measuring temperature and growth using tools, it must be quantitative data.

We can eliminate choices A and B, because they claim the class will gather qualitative data. Then, we can eliminate choice D, because a beaker and timer won't help with temperature and growth. That leaves choice C as the correct answer.

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3 years ago

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