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Alla [95]
3 years ago
14

"Wow" exclaimed Benny. "When I hit this mineral with my rock hammer, it broke into flat planes, in only one direction. It looks

like the layers are peeling off in sheets!"
"That's because it's mica," responded Alice, his lab partner.



Benny and Alice are describing the property of ___________, which is often used to identify specific mineral families.

A) streak
B) hardness
C) cleavage
D) specific gravity
Biology
1 answer:
Basile [38]3 years ago
8 0

Answer:

Im pretty sure its B

Explanation:

hopet this helped! :D

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These weeds are growing in a farmer's field. The weeds compete with the soybean plants the farmer grows, so he needs to get rid
Makovka662 [10]

Answer:

1) A mutation appeared in one weed plant that made that weed not   susceptible to the herbicide ( B )

2) The weed will survive long enough to reproduce ( B )

Explanation:

1) The most likely reason the weed remained is :  A mutation appeared in one weed plant that made that weed not susceptible to the herbicide

The weed plant must have undergone some mutation in order to be resistant to the herbicide which would kill the weed before now

2) The most likely thing that will happen if the weed stays in place in that farm is : The weed will survive long enough to reproduce

The trait or mutation of the weed cannot just spread to other weeds nearby it can only spread by reproducing more weeds of same mutation

8 0
3 years ago
The cilia lining the upper respiratory passages (superior to the larynx) beat inferiorly, whereas as the cilia lining the lower
Anton [14]

Answer:

The cilia in the upper respiratory tract move mucus  down toward the pharynx whereas the cilia in the  lower respiratory tract move them up toward the pharynx.

Explanation:

Through the internal nares, the air enters nasopharynx from the nasal cavity. This air has dust-laden mucus. The nasopharynx is lined with ciliated pseudostratified columnar epithelium. These cilia move the mucus down toward the most inferior part of the pharynx. The lining of the larynx inferior to the vocal folds is made up of ciliated pseudostratified columnar epithelium and have ciliated columnar cells, goblet cells, and basal cells.

The goblet cells serve to produce and secrete mucus. The mucus from goblet cells helps trap dust that was not removed in the upper passages. Therefore, the cilia in the upper respiratory tract move mucus and trapped particles down toward the pharynx whereas the cilia in the lower respiratory tract move them up toward the pharynx.

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3 years ago
Come all bad girls to see and show <br><br>crv-nvus-ani​
AlladinOne [14]

Answer:

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Hope it is helpful
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