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valentina_108 [34]
3 years ago
10

-1 Define cell and cytology.​

Biology
1 answer:
postnew [5]3 years ago
7 0
Cell definition: the basic membrane-bound unit that contains the fundamental molecules of life and of which all living things are composed.

Cytology definition: the study of cells as fundamental units of living things.
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Which of the following are some examples of rapid environmental changes? A) Succession B) Fires C) Weather D) Landslide​
kenny6666 [7]

Weather is an example of rapid environmental changes.

Explanation:

Environment refers to our natural world surroundings. Rapid means fast or quick. Weather around us keeps changing as the earth rotates and revolves around the sun. It changes depending on the month of the year or may change from day to night. You can also note the room temperature at different times in a day, it keeps changing mostly minorly but it does change. There are sunny, foggy, rainy, cold etc days and hence we can say that weather is example of rapid environmental changes.

5 0
3 years ago
Read 2 more answers
The sole of a gecko's foot is covered with millions and millions of small, dry "hairs" that make direct contact with surfaces, a
tamaranim1 [39]

Answer: Van der Waals forces

Explanation:

Van der Waals forces are weak intermolecular forces that depend on the distance between two particles. They are caused by correlations in the change in polarization between two nearby particles. To put it in other words, when a particle changes its polarization (becomes more positive on one end and more negative on the other), so does the adjacent particle, and the next one, and so on. This causes these particles to stick together weakly.

The tiny "hairs" increase the surface area of the gecko's feet in contact with the wall, which makes the bond stronger and allows it to support all of its weight.

Because experiments have shown that geckos stick well to both hydrophobic and hydrophilic surfaces, we can assume there aren't any hydrogen bonds present.

Ionic bonds can't be present either because geckos wouldn't stick to electrically neutral surfaces, as these bonds require charged molecules.

6 0
3 years ago
An abnormal change in ph or increase in temperature could cause the enzyme to _____________. denature speed up remain active wit
bonufazy [111]
The correct response in this case would be denature, the enzyme will no longer be able to catalyze the reaction if there is an abnormally high change in the pH or the temperature.
3 0
3 years ago
1. Which scientist developed the heliocentric model for the solar system?
Llana [10]
Answer: B. Copernicus
6 0
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Which pair of words is incorrect?<br><br> HELP SOON ASAP HELP HELP HURRY
Sergeu [11.5K]

Answer:

Black bear-carnivore

Explanation:

Black bears are omnivores because they eat berries, plants, and meat. Hope this helped and have a great day/ night! :D

7 0
3 years ago
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