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Semmy [17]
3 years ago
13

Name the trophic levels in an ecosystem and explain how energy moves through the trophic levels. Use the terms food chain and fo

od web in the discussion.

Biology
2 answers:
Alexxandr [17]3 years ago
5 0
Heres a chart for an answer

Studentka2010 [4]3 years ago
4 0

Answer:

Generally there is maximum <u>four trophic levels</u> in ecosystem- <em><u>producers,</u></em> <em><u>primary consumers, secondary consumers and tertiary consumers</u></em>.

Explanation:

ALL four trophic levels are arranged by their food chain. produces on the bottom trophic level with higher biomass and highest energy. Primary producers are dependent on producers for their food and form second trophic level with less biomass and 10% of energy than producers. Carnivorous are the secondary consumers depend on producers and primary consumers for their food. they consist of only 10% of energy than primary consumers. Omnivorous are on the top of the food web or the food chain with the least energy which is 10% of secondary consumers.

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'the fern are more terrestrially adapted 'explain this statement​
Llana [10]

Answer:

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3 years ago
Which changes faster? weather or climate
Minchanka [31]
Weather changes faster
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the nontemplate strand of a portion of a gene reads 5'ACTGGTTCA. What will the sequence of the resulting transcript for this por
konstantin123 [22]

Answer:

DNA template sequence:  

5' TGACCAAGT 3'

RNA antisense sequence: 3' UGACCAAGU 5'

>>> RNA sense sequence (transcript) : UGAACCAGU

Explanation:

In the DNA molecule, four types of nitrogenous bases are found: cytosine (C), and guanine (G), adenine (A) and thymine (T). In DNA the bases pair up with each other in the following ways: A pairs with T by two hydrogen bonds, while C pairs with G by three hydrogen bonds. In RNA (i.e., transcript sequence), T is replaced by uracil (U). Moreover, the RNA nucleotide sequence is read in the direction 5' to 3'.

7 0
3 years ago
Preserved animal tracks are called ______ fossils.<br> can someone help me with this problem
balu736 [363]
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Effects of pollution might includea. inability to see the top of skyscrapers because of the smog.b. acid rain-induced destructio
poizon [28]

Answer:

e. all of these answers

Explanation:

Air pollution in addition to affecting people, animals, plants and goods, causes other problems related to the changes that occur in its composition, such as: climate change, acid rain and the destruction of the ozone layer phenomena that affect the planet globally and that it is necessary to stop urgently by taking the necessary measures.

Main effects of pollution:

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- Effects on the environment :

It is in the natural environment where the first signs of the harmful effects of air pollution were seen, plants and vegetation act as an indicator in this regard.

Some of the most common contaminants :

SO2 ; O3 ; Fluorides ;  HCL; Cl2; NO2

- Effect on materials :

Contaminants can affect materials by particle deposition or abrasion and also by chemical reactions between the contaminant and the material. For example : stone, iron and paintings

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SMOG is known as fog-type pollution that occurs in some cities when the combination of certain factors occurs, depending on weather conditions and certain pollutants.

Some of them are:

Industrial smog

Photochemical smog

This phenomenon (SMOG) occurs when the mixture of nitrogen oxides and volatile hydrocarbons emitted by cars and industries and atmospheric oxygen react with solar radiation and form ozone.

- Acid deposition.

It is a regional effect. It results from the transformation of atmospheric pollutants such as sulfur dioxide (SO2) and nitrogen oxides (NOx) into secondary pollutants such as sulfuric acid (H2SO4), ammonium nitrate (NH4NO3) and nitric acid (HNO3).

Therefore, air pollution caused by SOx and NOx affects water, soil and ecosystems.

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Pesticides and other toxic chemicals that are used in the domestic environment, farms and industrial production, and that are dumped into the water, cause fish death.

3 0
3 years ago
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