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
lilavasa [31]
4 years ago
8

Why are bacteria needed in the nitrogen cycle

Biology
1 answer:
Ahat [919]4 years ago
5 0
It is the first option. Atmospheric nitrogen is very stable so there fore hard to react with. But bacteria contain molecules that can break the bond of nitrogen.
You might be interested in
During DNA replication, an open section of DNA, in which a DNA polymerase can replicate DNA, is called a replication fork. 2. Ok
Fiesta28 [93]

The question has been answered itself but the answer will contain the detail explanation.

Answer:

1. The replication fork formation during DNA replication is important for the continuity and the addition of the further base pair on the template. The DNA initiation process starts by the formation of replication fork.

2. The okazaki fragments are the short DNA fragments that are formed on the lagging strand. These fragments are later joined by the enzyme DNA ligase.

3. Leading strand is the continuous strand that formed during the DNA replication. The direction of the leading strand is 5' to 3' .

4. DNA polymerase is the main replicating enzyme during the DNA replication process. Different types of DNA polymerase with multiple subunits are present in prokaryotes and eukaryotes.

5. The new DNA that are formed from the parental strand and complementary with each other are called daughter DNA.

3 0
3 years ago
The population change equation is Population Change = (Natality - Mortality) + (Immigration - Emigration). Which equation would
Snezhnost [94]

Answer:

B. natality + immigration = mortality + emigration

Explanation:

Migration refers to the movement of a group of people from one geographical region (location) to another geographical destination in search of better living conditions, work or social amenities.

Migration selectivity can be defined as the likelihood or tendency that a subset (part) of a group of people are going to move (migrate) out of a particular geographical location or area.

Some of the factors that influence migration selectivity are income level, age, education, gender etc.

Population change equation states that the change in the size of a population over a specific period of time is equal to the sum of the number of births and the number of immigrants that joined.

Mathematically, the population change equation is given by the formula;

Population Change = (Natality - Mortality) + (Immigration - Emigration)

Therefore, the equation which would create a stable population is given by the formula;

Natality + immigration = mortality + emigration.

8 0
3 years ago
Read 2 more answers
Explain the ethical issues related to human cloning and using embryonic stem cells
olga2289 [7]

Answer:

Many people believe it to be unethical to remove/implant an embryo into a female, just as they see it unfitting to manipulate an individual when in an embryonic state.

Explanation:

7 0
3 years ago
If 1/8 remains after 21 years, what is the half-life?
vagabundo [1.1K]

Half life formula

The number of unstable nuclei remaining after time t can be determined according to this equation:

N(t) = N(0) * 0.5^(t/T)

where:

N(t) is the remaining quantity of a substance after time t has elapsed.

N(0) is the initial quantity of this substance.

T is the half-life.

It is also possible to determine the remaining quantity of a substance using a few other parameters:

N(t) = N(0) * e^(-t/τ)

N(t) = N(0) * e^(-λt)

τ is the mean lifetime - the average amount of time a nucleus remains intact.

λ is the decay constant (rate of decay).

All three of the parameters characterizing a substance's radioactivity are related in the following way:

T = ln(2)/λ = ln(2)*τ

How to calculate the half life

Determine the initial amount of a substance. For example, N(0) = 2.5 kg.

Determine the final amount of a substance - for instance, N(t) = 2.1 kg.

Measure how long it took for that amount of material to decay. In our experiment, we observed that it took 5 minutes.

Input these values into our half life calculator. It will compute a result for you instantaneously - in this case, the half life is equal to 19.88 minutes.

If you are not certain that our calculator returned the correct result, you can always check it using the half life formula.

8 0
3 years ago
ANSWER PLZ ASAP!!!!
Arada [10]

Answer:

B) Competition for mates

Explanation:

3 0
3 years ago
Read 2 more answers
Other questions:
  • Which is mismatched? cytoplasm - dense, gelatinous solution nucleoid - hereditary material inclusions - excess cell nutrients an
    14·1 answer
  • Maple trees are often tapped to extract the sap to make syrup. Which type of tissue is the aim of the tree tap?
    12·1 answer
  • Use this factor to calculate your protein needs based upon weight in kilograms.
    14·2 answers
  • How did planetesmals form planets?
    10·2 answers
  • An advantage of a complete digestive system over a gastrovascular cavity is that the complete system _____.A) excludes the need
    8·1 answer
  • Which mode of transfer does not occur?
    12·2 answers
  • What is homeostasis? How do cells use both diffusion and osmosis to help maintain homeostasis?
    11·1 answer
  • Luminous objects such as flashlights emit light that we can see. How do we see an object that isn’t luminous?
    14·2 answers
  • Select which of these might be a positive effect of the increase in carbon dioxide levels?
    5·1 answer
  • What is the elevation of hachure line A?
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!