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Andrej [43]
3 years ago
7

PLEASEE HELPPP!!!!

Biology
1 answer:
dusya [7]3 years ago
8 0

Answer:

<em>The correct option is B) Freshwater snails and small fish</em>

Explanation:

As we can see from the food web, the fresh water snails and the small fishes both feed on algae and water plants as their source of food hence, both these organisms feed on the same food.

Other options, like option C, is not correct because water boatman and water plants do not feed on the same sources. Water boatman feeds on reeds whereas water plants do not. Water plants will make their own food.

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A research group has discovered an organism with cells that contain a previously undescribed organelle. They do some tests on th
Vlad [161]

Answer:

The suitable option will be - B

Citric acid cycle

Explanation:

The results were -

Glucose: None

CO2: Increase

O2: None

ATP: Increase

NADH: Increase

  • We know that the Citric acid cycle is also known as the TCA cycle (tricarboxylic acid cycle) or the Krebs cycle. This cycle occurs in Mitochondria in case of eukaryotes. In this cycle acetyl-CoA is oxidized which comes from carbohydrates, proteins and fats and energy is released in the form of ATP.  
  • water is also used in this process. NAD+ gets reduced to NADPH. In this system carbon dioxide is produced as a waste byproduct. ATP is produced as the main product. ATP is also used as a source of energy.

6 0
3 years ago
Last one PLZ GET RIGHT HURRY
umka21 [38]

Answer:

The answer is C

Explanation:

Nutrients (Nitrogen, Phosphorus, and Potassium) They are the third most frequent stressor in impaired rivers and streams, and the fourth greatest stressor in impaired estuaries. The three primary nutrients in manure are nitrogen, phosphorus, and potassium.

8 0
3 years ago
When glucose is present, enzyme IIAglc is __________ and LacY is __________. a. phosphorylated; inhibited b. not phosphorylated;
olga_2 [115]

Answer:

Option B, not phosphorylated; inhibited

Explanation:

Glucose 6 acts as a catobolite repressant . A catobolite repressant which is usually a carbon compound inhibits the operon transcription. In the presence of glucose -6, unphosphorylated enzyme IIAGlc  inhibits the transportation system and hence prevents the utilization of lactose. Glucose‐6‐phosphate and other non‐PTS carbon causes inducer exclusion thereby leading to dephosphorylation of enzyme IIAGl without getting transported.

Hence, option B is correct

5 0
3 years ago
Where would you expect to find the strongest wind?
elena55 [62]

Answer:

b)

Explanation:

Are those that become tornadoes, reaching the speed of 480km/hour and measuring up to 1500 mts in diameter in the soil, travel more than 100 km away.

6 0
3 years ago
Read 2 more answers
Changes in groups of organisms over time produce variations in a population. this relates to _____.
vlabodo [156]
Changes in groups of organisms over time produce variations in a population. This relates to both macroevolution and microevolution.
These are evolutions within a small group or a population and across the whole species. 
3 0
3 years ago
Read 2 more answers
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