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allochka39001 [22]
3 years ago
12

Explain how the intensity of disturbances can affect equilibrium and species diversity.

Biology
2 answers:
Serhud [2]3 years ago
8 0

Answer:

Explanation:

The high intensity disturbance is likely to reduce the diversity of species by creating environmental stress that can be responsible for exceeding the tolerance of many species the intolerant species is likely to be excluded. This will affect the equilibrium of the species diversity as non-adapting and intolerant species population may reduce or extinct.

For example, the fire is an ecological factor. The forest fire is utilized by some plants for the dispersal of seed by burning of the hard coat fruits like pine cones but it reduces the population of weed species. Thus this affect the equilibrium of the species diversity.

m_a_m_a [10]3 years ago
8 0

Answer:

The equilibrium becomes unbalanced and since the species go extinct or move to a safe area, the diversity of species stops and are not able to grow.

Explanation:

Disturbance due to frequent forest fires or human impacts like deforestation leads to all species at risk of going extinct. It acts to disrupt stable ecosystems and clear species' habitat. As a result, disturbances lead to species movement into the newly cleared area.

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photosynthesis and cellular respiration both use electron transport chains. what is the source of electrons for photosynthesis a
goldfiish [28.3K]

Water serves as an electron source in the electron transport process of photosynthesis. The electron is extracted from water by using solar energy.

What is the electron transport chain's source of energy?

The electron transport chain uses the energy released by oxygen and reduced compound reactions such as cytochrome c and (indirectly) NADH and FADH2 to pump protons into the intermembranous space, producing the electrochemical gradient over the inner mitochondrial membrane.

In photosynthesis, water is split to produce electrons in the presence of sunlight, a process known as the photolysis of water. The electrons are finally transferred to NADP+ by the chloroplast electron transport chain, where they are reduced to NADPH.

Therefore, In aerobic respiration, electrons from NADH and FADH2 are transferred to oxygen by the mitochondrial electron transport chain to reduce oxygen in the water.

Learn more about photosynthesis from the given link.

brainly.com/question/1388366

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6 0
1 year ago
If A/A ⋅ B/B is crossed with a/a ⋅ b/b and the F1 is testcrossed, what percentage of the testcross progeny will be a/a ⋅ b/b if
Alex787 [66]

Answer:

a) 25%; b) 50%; c) 45%; d) 38%

Explanation:

<h3 /><h3>a) Unlinked genes</h3>

A/A B/B X a/a b/b

F1: A/a B/b

Testcross A/a B/b X a/a b/b

The homozygous recessive individual only produces <em>ab</em><em> </em>gametes.

The F1 produces four types of gametes (each of them with a frequency of 1/4):  <em>AB</em>, <em>Ab</em>, <em>aB </em>and <em>ab</em>.

25% of the progeny will be a/a b/b.

<h3>b) Completely linked genes</h3>

AB/AB X ab/ab

F1: AB/ab

Testcross AB/ab X ab/ab

The F1 produces only two types of gametes, the parentals (each of them with a frequency of 1/2):  <em>AB</em> and <em>ab</em>.

50% of the progeny will be ab/ab.

<h3>c) 10 m.u. apart</h3>

AB/AB X ab/ab

F1: AB/ab

Testcross AB/ab X ab/ab

The F1 produces four types of gametes, the parentals <em>AB</em> and <em>ab </em>and the recombinants <em>Ab</em> and <em>aB</em>.

Since the genes are 10mu apart, 10% of the produced gametes will be recombinant and 90% will be parentals. Since there are two types of parental gametes, each of them has a frequency of 45%.

45% of the progeny will be ab/ab.

<h3>d) 24 m.u. apart</h3>

This is very similar to c).

Since the genes are 24mu apart, 24% of the produced gametes will be recombinant and 76% will be parentals. Since there are two types of parental gametes, each of them has a frequency of 38%.

38% of the progeny will be ab/ab.

5 0
3 years ago
Question 8 (1 point) A warm air mass that forms over land. It is dry, dense, and has high air pressure. This air mass forms when
nadezda [96]

Answer:

Continental Tropical

Explanation:

I did the test and got it correct

7 0
3 years ago
Give one example of a factor that can influence airflow resistance.
irga5000 [103]

Answer:

Airways diameter can influence the airflow resistance.

Explanation:

Airflow resistance follows the same principle followed by the airway resistance. This is the resistance offered during the pulmonary blood flow.

Airways diameter affects the airflow resistance. If the diameter of airway is increased, the airflow resistance decreases and air can flow easily in the body. The decrease in the airway diameter (dilution) increases the airflow resistance of the blood artery.

5 0
3 years ago
Droughts might cause people to _______
Lilit [14]

they might conserve water

5 0
3 years ago
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