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Romashka [77]
3 years ago
9

Stimulants speed up brain and spinal cord activity. a. True b. False

Biology
1 answer:
-Dominant- [34]3 years ago
8 0
True. due to the fact that they are being stimulated.
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Asap please
GrogVix [38]

The geologic features that help scientists to determine the relative ages of rocks by their positions include index fossils, intrusions, and cross-cutting relationships (Option d).

<h3>What does geological age mean?</h3>

The expression geological age refers to the relative age of a given rock and or fossil (i.e. a piece or trace of dead organism) in a geological time scale.

In conclusion, the geologic features that help scientists to determine the relative ages of rocks by their positions include index fossils, intrusions, and cross-cutting relationships (Option d).

Learn more about geological age here:

brainly.com/question/15818328

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5 0
2 years ago
Which of the following procedures removes small portions of one's cornea in order to help change the cornea's curvature and re-e
Nat2105 [25]
Out of the options I would have to say Penetrating Keratoplasty, I am not sure
6 0
3 years ago
Read 2 more answers
Mammals do not produce digestive enzyme B. However, sheep and cattle are two types of mammals that contain microorganisms in the
Pepsi [2]

Answer: The differences in the assembly and organization of the monomers of these two polymers result in different chemical properties.

Explanation:

Starch and Cellulose flare both polysaccharides which are constructed from the same monomer called glucose. The functions they provide in plants are different which includes the following:

- STARCH is used by plants for energy storage because unlike Cellulose, it's formed from glucose units( oriented in the same direction) connected by alpha linkages which can form compact structures that can easily be broken down.

- Cellulose provides structural support for plant cell wall because unlike Starch, it's formed from glucose units( which rotates 180 degrees around the axis of the polymer backbone chain) connected by beta linkages. This pattern gives Cellulose it's rigid features as is allows for hydrogen bonding between two molecules of Cellulose.

Therefore the statement that best describes why starch and cellulose provide different functions in plants is that (The differences in the assembly and organization of the monomers of these two polymers result in different chemical properties).

7 0
3 years ago
The ozone layer protects life on Earth by absorbing harmful ultraviolet radiation. The ozone layer is located between 17 kilomet
Zolol [24]
The correct answer is (2) - Stratosphere. Ozone is found in the stratosphere , a layer beginning between 6 and 10 miles above the earth's surface and extends upward to about 30 mile above the surface of he earth. The ozone that is found in the stratosphere absorbs most of he harmful ultraviolet sunlight and is thus called the "good ozone" Ozone is also found in the lower region of the atmosphere known as the troposphere. But the ozone here strongly reacts with molecules causing toxicity in plants. The ozone is therefore termed as "bad ozone."
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3 years ago
¿Cada gen determina un caracter de un ser no vivo?
Leya [2.2K]

Answer:

Explanation:

Putos

5 0
3 years ago
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