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maksim [4K]
3 years ago
8

According to the scientific view, about how many years ago did life on earth begin?

Biology
1 answer:
skad [1K]3 years ago
8 0
It began 3.5 billion years ago
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Tropical rain forests receive heavy rainfall. How do the trees and plants of this region withstand rotting?
Lina20 [59]

Answer:

The trees and plant withstand rotting in tropical rain forest using some of these mechanisms.

Explanation:

Tropical rain forests are known for the presence of heavy rainfall, due to this, there might be a lot of water retention in the root. Some trees and plants however are able to store this water and use some of the below mentioned methods to prevent decay and rot.

Some trees in the tropical rain forest may produce very hard outer layer, these hard outer layer will protect the plant and trees form predators and microorganisms from penetrating into the inner tissues of the tree.

Some withstand rotting by producing chemical compounds, these chemical compounds prevents predators and microorganisms from destroying the plants and trees.

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3 years ago
Rods and cones are similar in that they both _____. see concept 50.3 (page 1117) view available hint(s) rods and cones are simil
EastWind [94]
Rods and cones are similar in that they both release glutamate as the primary neurotransmitter. During signalling the rod and cone photoreceptors signal their absorption of photons via a decrease in the release of the neurotransmitter glutamate to bipolar cells at its axon terminal. Every rod and cone photoreceptor release the same neurotransmitter, glutamate.
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3 years ago
You return from lunch to science class, and there are two clear liquids on your
MrMuchimi

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My best guess would be boil it!

4 0
3 years ago
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Ep-24 what is the best way to avoid running aground
patriot [66]

<span>The best way to avoid running aground is to ensure that you have a good understanding of your environment. This can be achieved by gaining familiarity with locations of shallow water and learning to read a chart to determine one’s position and the level of water</span>

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3 years ago
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).

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3 years ago
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