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Yuki888 [10]
3 years ago
10

How Primary and secondary succession happen?

Biology
1 answer:
Vera_Pavlovna [14]3 years ago
3 0

Answer:

In primary succession, newly exposed or newly formed rock is colonized by living things for the first time. In secondary succession, an area that was previously occupied by living things is disturbed, then re-colonized following the disturbance.

Explanation:

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Which explains the outer gas planets when the solar system formed?
Korvikt [17]
The correct answer is B The young sun's solar winds pushed gases outward to the outer solar system.
6 0
3 years ago
The neuronal circuitry to skeletal muscles involves neurons that stimulate contractions and those that inhibit contractions. The
UNO [17]

Answer:

somatic motor neuron hyperexcitability; inhibition

The neuronal circuitry to skeletal muscles involves neurons that stimulate contractions and those that inhibit contractions. The muscle spindles and Golgi tendon organs are involved in maintaining the proper muscle tonus (resting muscle tension); they work by signaling the CNS. Since tetanus involves SOMATIC MOTOR NEURON HYPEREXCITABILITY, the neurons involved in muscle contraction INHIBITION are affected.

Explanation:

Tetanus is a infection that is caused by a bacteria called Clostridium tetani. It occurs when open wounds in the body are not properly treated and they get infected. This wound can be caused by stepping on a nail or sharp object like broken bottle.

When tetanus enters an open wound present on the body, it attacks the neurons in the body, specifically the somatic motor neurons. Tetanus hinders the release of neurotransmitters and blocks the inhibitory properties of the muscles. These causes the muscles of the body to contract unhindered and uncontrollably resulting in spasms. This can also be referred to as neuronal hyperexcitabilty.

7 0
4 years ago
Read 2 more answers
How did building high-rise homes and offices affect sprawl? Why do you think this happened
hammer [34]
Dozens of tower cranes dot DC's skyline, and so many of them are building new high-rise apartments that the District now ranks ninth among US cities with the most housing units under construction. It sure looks like a lot of new housing supply is being built, and certainly plenty of new luxury apartments within the District. However, the downtown high-rises under construction only tell half the story of Greater Washington's housing growth story.

While all those cranes are easy to see from afar, what isn't immediately apparent from the airport (but might be from a plane) is that many fewer acres of the countryside around us are being bulldozed for subdivisions–which for the past century has been where most lower-cost, low-rise housing was built. As a result, the region as a whole isn't building enough housing for our rising population.

Reducing sprawl is good, but we haven't built enough housing in city cores to meet demand

Fewer than half as many single-family houses are being built at the suburban fringes of Greater Washington every year, compared to the region's long-range average. Taken together, the single-family houses that aren't being built around Greater Washington each year would cover four square miles–an area the size of Rock Creek Park. The slower pace of suburban development over the past ten years has meant tens of thousands of acres of farms and forests around our region haven't been bulldozed for subdivisions and strip malls.
7 0
3 years ago
Read 2 more answers
Phyllis is looking for food items high in omega-6 fatty acids. which item should be in her shopping cart?​
nignag [31]

The answer is a carton of eggs. Other foods rich in omega-6 fats include vegetables,  seeds, and nuts, and dairy products. The fats are essential in promoting growth and also significant in the inflammation process of the immune system. They should not, however, be consumed in high amounts.  






4 0
3 years ago
Compare and contrast characteristics of X-linked dominant and X-linked recessive inheritance patterns.
Nitella [24]

Answer:

X linked dominant disorders are caused when the genes on the X chromosomes gets mutated. X linked dominant disorders phenotype is observed in each generation and males experience more severe symptoms of disorder as compared to a female.

In X linked recessive disorder one copy of affected X gene is sufficient to cause the disease in males. In case of females both the X gene are required to be effected for causing disease.

Explanation:

X linked dominant disorders are caused when the genes on the X chromosomes gets mutated. X linked dominant disorders phenotype is observed in each generation and males experience more severe symptoms of disorder as compared to a female. This disorder is never transmitted to male child by the father or in other way we can say that there is no male to male transmission. For example Fragile X syndrome

In X linked recessive disorder one copy of affected X gene is sufficient to cause the disease in males. In case of females both the X gene are required to be effected for causing disease. Males are more affected by this disorder as compared to females. For example - hemophilia . This disorder is never transmitted to male child by the father just like the X linked dominant disorder or in other way we can say that there is no male to male transmission.

5 0
3 years ago
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