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Dafna11 [192]
3 years ago
10

A Person roller skates down a street heading east. Which of the following would be true about friction in this scenario?

Biology
1 answer:
hammer [34]3 years ago
8 0
D. friction pulls the skates wheels westward 
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Drag the tiles to the correct boxes to complete the pairs. Not all tiles will be used.
romanna [79]
Transpiration: process in which plants release water vapor into the air
Evaporation: process in which water changes to a vapor
Precipitation: water that falls from clouds toward the ground
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Groundwater: flowing of rainwater downhill to form streams and rivers
5 0
3 years ago
Which of the following organisms was most likely the most recent common ancestor of all animals? a. multicellular algae b. multi
eduard

Answer:

b. multicellular fungus

Explanation:

In a recent study, it was discovered that there was a genetic relationship between multicellular organisms like protozoa and animals and fungi have a common ancestor as their ancestors had contact about 1.1 billion years ago.

Therefore, the organism that was most likely the most recent common ancestor of all animals is multicellular fungus

4 0
3 years ago
What is 3 reasons a species may become extinct?
jekas [21]
Three reasons a species could become extinct include, deforestation, being overhunted, not enough food available.
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3 years ago
In the darkness, a pinpoint of light becomes visible. Someone has turned on a flashlight. The pin­point grows to the size of the
Firlakuza [10]

Answer:

to explain how light travels

Explanation:

8 0
3 years ago
A transcriptional repressor that controls the transcription of gene A is not normally active unless bound by an effector molecul
iren [92.7K]

Answer:

Increase in transcription

Explanation:

Transcription is the process of forming RNA from DNA. It can be controlled by many factors like a repressor. Repressor can bind to the operator region of the promoter and hinder the movement of RNA Polymerase enzyme, halting the process.

Here, it is given that the repressor needs to first bind to an effector molecule X. Once it binds to X, it is activated and then it can bind to operator of gene A to inhibit its transcription. If the X binding domain on repressor is mutated it wont be able to bind to X. Thus it wont get activated and wont be able to attach to operator region to inhibit transcription. Hence, transcription process will keep going on uncontrolled.

5 0
3 years ago
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