In soils with distinct soil horizons, the bottom zone is the..... a.) parent material b.) a horizon c.) b horizon d.) subsoil

Biology

2 answers:

pentagon [3]2 years ago

8 0

The correct answer is option (a). Parent material

The soil horizon refers to distinct layers of the soils, which are parallel to one another, but have a different composition from the layer present above and below to it.

The soil horizon can be divided into four different layers. First one is organic layer, which is the topmost layer, below this layer second layer of topsoil is present. Below top soil, subsoil is present. Below subsoil, the bottom most horizon parent material is present.

masya89 [10]2 years ago

6 0

A. Parent material, is the bottom zone

You might be interested in

What should be the genotypes of the parent flowers (P generation) if he wants to ensure that all of the flowers in the F1 genera

EleoNora [17]

Answer:

TTYY x TTYY

Explanation:

5 0

2 years ago

Which of the following is a reservoir for carbon and nitrogen, but not phosphorus?

gayaneshka [121]

The atmosphere

Is not a reservoir for phosphorus.

8 0

3 years ago

Read 2 more answers

What is the main element In Carbohydrates and lipids and proteins and Nucleic acids?

sesenic [268]

Nucleic acids also typically contain phosphorous, and nitrogen plays an important structural role in nucleic and proteins. The proteins, being made up a diverse set of amino acids, have, in addition to carbon, hydrogen, oxygen, and nitrogen, the elements sulfur and selenium.

4 0

3 years ago

Several events happen during sexual reproduction in flowering plants. Put these processes in the correct order, ending with the

lana66690 [7]

Sexual reproduction is one type of biological reproduction wherein the genitals of the male and female organisms engage into a sexual activity in order for the sperm cells to fertilize the egg cells of the females.
In the case of most plants, they engage in asexual reproduction.

7 0

3 years ago

A DNA molecule produced by combining DNA from different sources is known as

Digiron [165]

Answer:

A DNA molecule produced by combining DNA from different sources is known as recombinant DNA.

Explanation:

Recombinant DNA (rDNA) can be obtained by coupling DNA fragments from different sources, a process that is performed at the restriction site level and uses enzymes.

Once rDNA has been designed —cutting out fragments of DNA that are then reassembled— it must be brought to a specific location in the cells, to be copied and expressed, using means of transport called vectors.

DNA recombination is performed in biotechnology laboratories specialized in the manipulation of genetic material.

The other options are not correct because:

Mutant or mutated DNA is a DNA molecule with an alteration of its nitrogenous base sequence
Hybrid DNA is a variant of recombiant DNA, in which only two DNA molecules from different sources are used.
Polyploid refers to cells containing the genome of different species.

8 0

2 years ago