1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Gnom [1K]
3 years ago
7

Why are bacteria a necessary part of the nitrogen cycle?

Biology
1 answer:
lyudmila [28]3 years ago
4 0
When nitrogen is absorbed by the soil, different bacteria help it to change states so it can be absorbed by plants. Animals then get their nitrogen from the plants. Fixation - Fixation is the first step in the process of making nitrogen usable by plants.
You might be interested in
Analise as alternativas a seguir e marque o processo realizado pela maioria dos seres vivos para sintetizar ATP. Esse processo o
oksian1 [2.3K]

Answer:

Anaerobic respiration.

Explanation:

Living beings used to respiration process to synthesize ATP. There are two types of respiration i. e. aerobic respiration and anaerobic respiration. in aerobic respiration, organisms synthesize ATP in the present of oxygen in very large amount while in anaerobic respiration, organisms produces ATP in the absence of oxygen but in very low concentration. So anaerobic respiration is the process used by organisms as an alternate method to produce ATP without oxygen.

5 0
3 years ago
Which are segments off DNA that code for specific traits?
mr Goodwill [35]

Answer:

Gene. A segment of a DNA molecule (a sequence of bases) that codes for a particular protein and determines the traits (phenotype) of the individual.

Explanation:

3 0
2 years ago
Phenylketonuria (PKU) is a genetic disease caused by the inability to break down the amino acid phenylalanine. If untreated it l
tiny-mole [99]

Answer:

Therefore, 98% of the US population have no alleles for PKU

Explanation:

The Hardy-Weinberg equilibrium states that the amount of genetic variation in a population will remain constant from one generation to the next in the absence of disturbing factors.

The Hardy-Weinberg equilibrium is expressed quantitatively using a mathematical equation known as the Hardy-Weinberg equation. the equation is given below:

p² + 2pq + q² = 1

also, p + q = 1

Given a pair of alleles, S and s with A dominant and a recessive

where p is the frequency of the dominant allele in the population,

q is the frequency of the recessive allele in the population,

p² represents the frequency of the (SS)  dominant genotype,

q² represents the frequency of the (ss) recessive genotype,

2pq represents the frequency of the heterozygous genotype

From the given question,

q² = 1/10000 = 0.0001

q = 0.01

from p + q = 1

p = 1 - 0.01 = 0.99

p² = 0.98

Therefore, 98% of the US population have no alleles for PKU

4 0
3 years ago
Some types of fish can generate an electric field around their body to communicate with other individuals of the same species (l
olchik [2.2K]

Answer:

D. physiological mechanisms are the basis of behaviors.

Explanation:

The example of the development of electric fields as part of the communication between some fish, shows the interrelation that exists between physiology and behavior. This physiological factor that fish have has an impact on their behavior. However, it is necessary to recognize that physiology does not act by itself, but needs to receive a stimulus from the surrounding environment. This way of communicating is called  electrocommunication, a fish generates through its physiology an electric field and a second individual receives that electric field with its electroreceptors.

6 0
4 years ago
Which of the following best explains how the prokaryotic expression of a metabolic protein can be regulated when the protein is
Salsk061 [2.6K]

Answer:

A. Repressor proteins can be activated and bind to regulatory sequences to block transcription.

Explanation:

its A

4 0
4 years ago
Read 2 more answers
Other questions:
  • Recently discovered remains from the tugen hills, dated to about 6 million years ago have been placed in which genus?
    11·1 answer
  • The most abstract plans depend on the _____ areas of the frontal lobes, and the most concrete plans depend on the _____ areas of
    12·1 answer
  • Which feature of a sandstone rock layer usually is
    14·1 answer
  • Which of the following muscle tissues is not striated and is responsible for involuntary peristalsis (wave-like contractions), w
    9·1 answer
  • Plants use sunlight and photosynthesis to make food energy. What do archaea use?
    11·1 answer
  • Which statement best describes wavelengths of sunlight that are longer than 700 nanometers?
    6·2 answers
  • Information about the 7 major plates
    15·1 answer
  • Which of these abiotic factors would contribute to a clumped dispersion pattern in an ecosystem?
    8·1 answer
  • Answer the question in the picture
    7·1 answer
  • How will building a road through the rainforest affect the plants and animals
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!