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VMariaS [17]
3 years ago
5

The main target when controlling the acidity of soils is ______. a. neutralizing the pH b. adding base c. replacing lost cation

nutrients d. eliminating humic acids
Biology
2 answers:
natima [27]3 years ago
6 0
<h3>Answer: C. replacing lost cation nutrients </h3>

malfutka [58]3 years ago
3 0

Answer:

C

Explanation:

Acidic soils mean they have more of Al3+ and H+ ions which are acid forming cations. These cations make alkaline forming ions unavailable to plants as nutrients. When the pH of the soil is raised, the Al3+, Fe3+, and H+ are neutralized. The ions bind with –OH ions hence releasing the ions in the negatively-charged sites on the hummus to play a role in the nutrient exchange.

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60 PT!! PLZ HELP ;(
CaHeK987 [17]

1.  3.5

2. Polar covalent

3. Polar covalent

4. Polar covalent

5. The bonds in a CCl4 molecule are polar, but CCl4 itself is a nonpolar covalent.

Hope I helped!

3 0
3 years ago
Which mutations is most likely to cause a phenotypic change?
melomori [17]

The question is incomplete. The complete question is as follows:

Which of the following mutations is most likely to cause a phenotypic change?

A) a duplication of all or most introns

B) a large inversion whose ends are each in intergenic regions

C) a nucleotide substitution in an exon coding for a transmembrane domain

D) a single nucleotide deletion in an exon coding for an active site

E) a frameshift mutation one codon away from the 3' end of the nontemplate strand

Answer: D) a single nucleotide deletion in an exon coding for an active site

Explanation:

Deletion or insertion of a single nucleotide in an axon coding for an active site is called frameshift mutation.

The sequence of codons is read during translation, in order to synthesize a amino acids chain and form a protein from the nucleotide sequence. Frameshift mutations occur when the usual codon sequence is broken by the deletion or addition of one or more nucleotides. For example, if only one nucleotide is removed from the axon sequence during the RNA splicing process, then there will be a disrupted reading frame for all codons before and after the mutation. This may result in several incorrect amino acids being introduced into the protein. Disruption in protein sequence will cause phenotypic change.

Hence, the correct option is D) a single nucleotide deletion in an exon coding for an active site .

5 0
3 years ago
Survival of the fittest and evolution were proposed by what scientist?.
Aneli [31]

Answer:

Charles darwin

Explanation:

i looked it up

8 0
2 years ago
Question 7 of 10
Dafna11 [192]

Answer:

option a answer

Explanation:

please follow me

5 0
2 years ago
Read 2 more answers
What does the Leaf Diagram look like? What are it’s parts and functional and functions?
Nookie1986 [14]

Answer:

A stem and leaf diagram has two parts, the 'stem' and the 'leaf'. In the stem, there are numbers in ascending order from top to bottom. In the leaf, there are numbers showing the next digit of the number in the stem. The leaf is to the right of the stem.

The function of a stem and leaf diagram is to summarize data in a way that separates numbers into different number categories.

6 0
3 years ago
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