Humus which is formed by the decay of plant and animal matter is important for the formation of most,

Biology

1 answer:

lianna [129]3 years ago

3 0

Answer:

b) soils.

Explanation:

Humus which is formed by the decay of plant and animal matter is important for the formation of most, soils.

Soil formation occurs as a result of the the decay or the remains of plants and animals which are used up.

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The difference between an aldose sugar and a ketose sugar is ________. Group of answer choices the ring form and the linear chai

zhuklara [117]

Answer: position of the carbonyl carbon

Explanation:

In the linear structure of sugars having an aldehyde group, are called aldoses, and sugars having a keto group are called ketoses.

Like adehydes H-C=O the carbonyl carbon is the first/last in the chain it is bounded to Hydrogen, double bounded to oxygen and a single bond to the chain. An aldose linear sugar like D-glucose have the carbonyl carbon as it first carbon.

But ketones R-COR the carbonyl carbon is in between the chain, it is bounded to two carbons on both sides. Like D-fructose the keto carbon is the second carbon.

In a open ring structure the 1st carbon, adehyde group is condensed with the hydroxy group (OH) of the 5th carbon forming a ring. The first carbon is now bound to the chain, Hydrogen, OH and oxygen which forms the ring.

In the keto open ring structure of D-fructose, the second carbon(keto group) is condensed with the OH of the 5th carbon

3 0

3 years ago

Which type of selection is illustrated by these two graphs?

kolezko [41]

Hello!

The type of selection which is illustrated by these two graphs is a Stabilizing Selection

Among the different types of Natural Selection. Stabilizing Selection is the one that happened to the parrot population in the rainforest in Costa Rica. This is characterized by the selection against the extremes of an attribute and reinforcement of the mean, that's why this type of selection is also called Selection towards the mean.

In this case, there was selection against the parrots with colored feathers other than green that didn't help them to camouflage in the rainforest.

Have a nice day!

8 0

3 years ago

Which is the most inclusive division of time on the geologic time scale?A. epochB. periodC. eraD. eon

suter [353]

The most inclusive division of time is the eon, which can be Archean, Proterozoic, Phanerozoic and they are divided into eras (Early/Middle/Late for the Archean and Proterozoic, Paleozoic, Mesozoic and Cenozoic for the Phanerozoic). Therefore, the correct answer is D. eon.

8 0

1 year ago

The absorptive state is regulated mainly by insulin, whereas the postabsorptive state is regulated by multiple hormones.

mixer [17]

The statement "The absorptive state is regulated mainly by insulin, whereas the postabsorptive state is regulated by multiple hormones." is a true statement.

Option A is correct

<h3>What is the absorptive state?</h3>

Generally, After a meal, your body is in the absorptive state, or fed state, where it is digesting the food and absorbing the nutrients.

In conclusion, insulin regulates your absorptive state or state of digestion