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3 years ago

Organic matter in soil is also called _____.

Biology

2 answers:

Feliz [49]3 years ago

8 0

Answer: humus

- Prodixy

9966 [12]3 years ago

7 0

Answer:

The correct answer would be humus.

Humus is the organic material of the soil formed by the decomposition of the dead plants and animals. It is thick and dark in color (brown or black) and can also be produced by the process of composting.

It is very for the soil as it adds moisture to the soil, enhances the structure of the soil which increases the aeration and drainage.

It favors the growth of organisms (such as earthworm) helpful for the growth of plants and adds lots of nutrients to the soil, specially nitrogen.

In contrast, loam is a type of soil which is composed of silt, sand, and clay in 40-40-20 ratio. Regolith referred to the superficial layer covering the solid rocks or bedrock. It is formed by the accumulation of soil, dust, broken rocks etc on the bedrock.

Lastly, talus referred to the slope which is formed by deposition of shattered rock debris at the base of a cliff.

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Bill broke a test tube. He carefully picked up the broken pieces and placed them in the garbage can. He notified his teacher. Di

Lerok [7]

Answer:

its b

Explanation:

LOL.....l just did it

4 0

4 years ago

Why is GMO modification different for plants and animals? Plants have a cell wall. Plants do not have DNA The mitochondria in pl

Ahat [919]

Answer:

Plants have a cell wall

Explanation:

GMO modification is different for plants and animals because plant cells have cell walls, unlike animal cells.

GMO refers to genetically modified organisms - a technique that involves the introduction of foreign genes into the genome of organisms.

GMO modification requires that the genome of a cell is accessed by a foreign gene and in order to do this, the membrane of the cell has to be disrupted to gain entrance by the gene. Animal cells do not have cell walls, and thus, can be accessed directly relevant mechanisms. Plant cells, however, have cell walls and as such, no direct access to the cell membrane can be achieved without having to remove the cell wall first.

Thus, the cell wall is a major factor that makes GMO modification to be different for plants and animals.

5 0

3 years ago

A------------ is each step in a food chain that demonstrates the transfer of energy.

kherson [118]

A trophic level is each step in a food chain that demonstrates the transfer of energy.

A trophic level is any feeding level in a food chain through which energy in the form of food is transferred in an ecosystem. A food chain contains five main trophic levels which are; (i) primary producers (autotrophs; plants and algae), (ii) primary consumers (herbivores), (iii) Secondary consumers (carnivores and omnivores), (iv) Tertiary consumers (carnivores and omnivores) and (v) Apex predators.

6 0

4 years ago

Read 2 more answers

Genetic disorders can result in chroma tides fail to separate properly during which phase is this problem most likely to our car

Alex Ar [27]

Answer:

Anaphase of meiosis II

Explanation:

I think you are asking during which phase of cell division sister chromatids are mostly likely to fail to separate properly, a phenomenon that can lead to genetic disease.

This is sometimes called non-disjunction, and it is most likely to occur in anaphase during meiosis II. During this stage, sister chromatids of the two daughter cells produced by meiosis 1 are separated and brought to opposite parts of the cell. If something goes wrong at this stage, the sister chromatids can fail to separate properly, meaning the daughter cells do not have the correct number of chromosomes (see attachment).

An example of such a genetic disorder is Down syndrome

3 0

3 years ago

What are two ways that diatoms differ from slime molds? The external coverings of diatoms are made up of , while slime molds hav

12345 [234]

<h3>Answer;</h3>

-Frustule

-Autotrophic

-Heterotrophic

The external coverings of diatoms are made up of frustule , while slime molds have cell walls containing cellulose . Diatoms are autotrophic because they make food through photosynthesis, while slime molds are heterotrophic because they eat decaying plant matter.

<h3>Explanation;</h3>

Diatoms are tiny single-celled algae that are covered with glass like shells made of silica. Slime molds on the other hand are fungus-like protists that re heterotrophic like protozoa in the kingdom protista.

Diatoms and slime molds differ in a number of ways which include;

Diatoms are food producer or autotrophs while the slime are consumers or heterotrophs and depend on the product produced by the primary producer such as plants, diatoms etc.
Diatom posses photosynthesis while the slime mold lack that.
Slime molds are fungus like protists and have both plant and animal like characteristics while diatoms have only plant like characteristics.
The external coverings of diatoms are made up of frustule, while slime molds have cell walls containing cellulose

3 0

3 years ago