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oee [108]
2 years ago
14

What makes an item scarce?

Biology
1 answer:
VikaD [51]2 years ago
5 0
The answer is C I think
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By leaving crop roots in the ground and stalks on the surface, no-till plowing helps prevent ____________________.
shusha [124]

Answer:

Soil erosion.

Explanation:

No-till plowing can be defined as a farming method or technique which typically involves planting crops (seedlings) without tilling the soil rather the farmer would only open a narrow or very shallow trench of sufficient depth and width to cover up the seedlings. Thus, the no-till plowing makes crop residues to be left on the soil and by extension preventing soil erosion through the absorption of water by the crop residues.

Hence, by leaving crop roots in the ground and stalks on the surface, no-till plowing helps prevent soil erosion.

Additionally, the water retention ability of no-till plowing is usually a boon to farmers because it slows down evaporation and serves as a good protection for drought-stricken environments.

8 0
3 years ago
Read 2 more answers
Describe the steps in which a gene in passed from parent to offspring. Make sure to describe how the gene is duplicated, separat
Margarita [4]

Answer:

Mitosis occurs in somatic cells; this means that it takes place in all types of cells that are not involved in the production of gametes. Prior to each mitotic division, a copy of every chromosome is created; thus, following division, a complete set of chromosomes is found in the nucleus of each new cell. Indeed, apart from random mutations, each successive duplicate cell will have the same genetic composition as its parent, due to the inheritance of the same chromosome set and similar biological environment. This works well for replacing damaged tissue or for growth and expansion from an embryonic state. Because the genes contained in the duplicate chromosomes are transferred to each successive cellular generation, all mitotic progeny are genetically similar. However, there are exceptions. For example, there are genetic variations that arise in clonal species, such as bacteria, due to spontaneous mutations during mitotic division. Furthermore, chromosomes are sometimes replicated multiple times without any accompanying cell division. This occurs in the cells of Drosophila larvae salivary glands, for example, where there is a high metabolic demand. The chromosomes there are called polytene chromosomes, and they are extremely large compared to chromosomes in other Drosophila cells. These chromosomes replicate by undergoing the initial phases of mitosis without any cytokinesis (Figure 2). Therefore, the same cell contains thick arrangements of duplicate chromosomes side by side, which look like strands of very thick rope. Scientists believe that these chromosomes are hyper-replicated to allow for the rapid and copious production of certain proteins that help larval growth and metamorphosis

Explanation:

hope this helped!

7 0
2 years ago
Suppose an explorer discovered a unique new species of plant and collected a sample for analysis by a geneticist. The geneticist
adoni [48]

my brain can't process this lol

6 0
2 years ago
Which of the choices below gives a true example of how a natural resource can be renewed?
Bess [88]

When forests have been cut down, new native trees can be planted

5 0
2 years ago
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Record your hypothesis as an “if, then” statement for the rate of dissolving the compounds:
PSYCHO15rus [73]
If the chemical touches another chemical, then there is a higher probability that it's going to react.
7 0
3 years ago
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