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Iteru [2.4K]
3 years ago
6

Describe how primary succession following a volcano is different from secondary succession following a forest fire.

Biology
2 answers:
riadik2000 [5.3K]3 years ago
8 0
A primary succession is when new soil needs to be formed from the rocks whereas in secondary succession, the soil for new plants and life is already there in the ashes.
Bezzdna [24]3 years ago
8 0

Answer:

The Primary succession can be defined as an area that was not occupied earlier, barren, and uninhabited and there was no vegetation.  

The secondary succession can be defined as the area in which previously there is a growth of a community and it is occupied, inhabited and has primary vegetation but it was got disturbed due to some external or internal factors.

Example of primary succession: Bare rock,Volcanic eruption, and Desert, while that of secondary succession will include earthquake, flood, forest fire etc



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A marked decrease in brain processing and memory in some older adults is MOST likely caused by: A. inadequate control processes.
Andru [333]

Answer:

Option-B

Explanation:

The brain is an organ composed of neurons which controls all the voluntary and involuntary of animals.  In humans, the brain is located in the skull where the brain is suspended in a fluid called cerebrospinal fluid.

As humans ages and becomes old aged, the neurons in the brain losing their ability to perform their function, if they are lost they cannot be regenerated.

The lesions appear on the white matter of the brain and the brain shrink. Due to these known and other unknown features, the process controlled by these neurons become inadequate and shows slower brain processing and weak memory.

Thus, Option-B is the correct answer.

6 0
3 years ago
Slicon it position on the periodie table and its chemical properties based on that position​
Inessa05 [86]
It is quite hard to say
3 0
1 year ago
Assume that in cattle a spotted coat is dominant to an even coat, short horns are dominant to long horns, and the traits for coa
kow [346]

Answer:

C. 1/4

Explanation:

Let's assume that the allele for the spotted coat is "S" and the one for the even coat is "s". The allele "L" gives short horns while the recessive allele "l" imparts long horns. The genotype of the cattle heterozygous for both traits would be SsLl. A cross between two heterozygous cattle would produce progeny in following phenotype ratio=

9 spotted coat and short horns: 3 even coat and short horns: 3 spotted coat and long horns: 1 even coat and long horns.

Therefore, the proportion of the progeny with long horns = 4/16= 1/4

8 0
3 years ago
Which property of minerals is the least reliable for identfying minerals?
natta225 [31]

Answer:

Color is the least reliable property for mineral identification. The same mineral can come in a variety of colors and different minerals can be the same color. The color can change over time do to weathering.

Explanation:

7 0
3 years ago
Bronze is an alloy, which is what form of matter?
pochemuha
The answer is a solid
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