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miss Akunina [59]
2 years ago
15

name the bacteria found in the root nodules of leguminous plants and state the association of the bacteria with the leguminous p

lants
Biology
1 answer:
Alexeev081 [22]2 years ago
8 0
The root nodules of leguminous plants houses nitrogen-fixing bacteria called Rhizobia. Rhizobia has a symbiotic relationship with leguminous plants that allows both to benefit from each other.

By binding to hydrogen, the Rhizobia bacterium is able to  convert or fix nitrogen gas into ammonia , a form that the plant can use. Likewise, the legume plant provides the rhizobia bacterium with carbohydrate which the rhizobia depends on for energy. It is important to note that the carbohydrate sent to the nodules for the rhizobia is also what is used as a source of hydrogen to help the bacterium convert nitrogen to ammonia.
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1. · Explain the origin of coal and name its various varieties.
scZoUnD [109]

Answer:

Coal gas is a flammable gaseous fuel made from coal and supplied to the user via a piped distribution system.It is produced when coal is heated strongly in the absence of air. ... Facilities where the gas was produced were often known as a manufactured gas plant (MGP) or a gasworks.

Coal tar is a thick dark liquid which is a by-product of the production of coke and coal gas from coal. It has both medical and industrial uses. Medicinally it is a topical medication applied to skin to treat psoriasis and seborrheic dermatitis (dandruff). It may be used in combination with ultraviolet light therapy.

: a bituminous coal suitable for making into coke.

8 0
2 years ago
Some viruses consist only of a protein coat surrounding a nucleic acid core. If you wanted to radioactively label the nucleic ac
siniylev [52]

Answer: Phosphorous

Explanation:

Phosphorous can be used to label Nucleic acid. Nucleic acids can be modified or labelled using tags .

Some common materials or substances that can be used to label nucleic acids are flurophore, enzymes, radioactive phosphorous, biotin et cetera.

The nucleic acid of virus is labelled using phosphorous. When this virus will infect the host cell then nucleic acids will be seen separately.

4 0
3 years ago
PLEASE HELPP!! match the word with the definition
alexira [117]

Answer:

A. Miosis

B. DNA molecule

C. Body cells

D. phenotype

E. Recessive traits

F. genotype

G. Punnet square

H. nondisjunction

I. mitosis

J. sex cells

Explanation:

In meiosis cell division, a parent cell divides into four daughter cells whereas in mitosis, one cell divides into two daughter cells. If change occur in DNA molecules, mutation occurs. Phenotype refers to physical characteristics of an organism whereas genotype indicates genetic characteristics. Recessive traits only appears when the organisms have same traits or allele. Somatic cells is known as body cells whereas gametes is known as sex cells.

6 0
2 years ago
(Q018) While studying with you for an exam, a classmate claims that the only difference between australopithecines and early Hom
SVEN [57.7K]

Answer:

Homo species have differences in brachial index, face and teeth size as compared with australopithecines.

Explanation:

Australopithecines were found in pleistoocene era and adapted to the bipedal locomotion but shows differences in walking style as compared to early homo species. They have large brachial index. The postcanines were large but incisors and canines were small.

Early homo species were found around 2 million years ago. They shows bipedal locomotion with different walking styles. The brachial index of early homo species was small as compared with the australopithecines. The post canines were small but incisors and canines were large.

5 0
3 years ago
What five criteria must be met for a substance to be a mineral.
mafiozo [28]

Minerals may be defined as the combination of two or more elements of a substance.

<u>Five criteria that exhibits a particle to be minerals; </u>

  • They are natural and not man-made.
  • Inorganic i.e. not made by any organism.
  • Minerals are solids, not liquid or gas.
  • They have a definite chemical structure.
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Minerals are natural and we use it in our day to day life. Products like salt and even a pencil have minerals. Also, these minerals help the parts in the human body to grow faster and function properly.

8 0
3 years ago
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