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3 years ago

Which is a likely location for primary succession ?

Biology

2 answers:

koban [17]3 years ago

4 0

A likely location for primary succession would be D. large boulder

Primary succession begins on rock formations, such as volcanoes or mountains, or in a place with no organisms or soil.

3241004551 [841]3 years ago

4 0

The correct answer is option D

The primary succession takes place at the places where the new substrate is devoid of vegetation and the other organisms lacking soil like lava flowed area, retreated glacier and large boulder.

The large boulder are the large rocks that does not support vegetation. The pioneer species there would be algae and lichens.

Primary succession can be defined as the growth of an ecosystem over a period of time.

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What is the function of These structures... Butterfly wing & Bird Wing

ASHA 777 [7]

Insects have two pairs of wings, while bats and birds each have one pair. Insect wings lack bones, but birds and bat wings have them. Butterfly wings are covered in scales, bird wings in feathers , and bat wings with bare skin.
I hope you the answer will help you :)

3 0

3 years ago

Assume a population is in Hardy-Weinberg equilibrium for the B gene, which has two alleles, B and b. In this population of 100,0

MArishka [77]

Answer:

160

Explanation:

If p = frequency of dominant allele and q = frequency of recessive allele according to Hardy-Weinberg equilibrium,

p + q = 1

p² + 2pq + q² = 1

where p² = frequency of dominant homozygous genotype

q² = frequency of recessive homozygous genotype

2pq = frequency of heterozygous genotype

Here,

b = 4% = 0.04

bb = 0.04 * 0.04 = 0.0016

Number of individuals in population = 100000

Number of homozygous bb individuals = 0.0016 * 100000 = 160

6 0

3 years ago

What are the movable segments of DNA called

Marianna [84]

The answer is called jumping gene hope this helps

3 0

3 years ago

You are out to dinner with your friend. you notice that he only orders food and drink items that are red. you think this behavio

BigorU [14]

The cautions that can be given to the friend include the following:
Eating foods from different sources is very advantageous because it ensures that one gets all the necessary food nutrients that are needed for proper growth and development. Getting the necessary food nutrients on the other hand will boost one's immunity and enable one to develop resistance to diseases. Restricting one's food to a limited type of food is very bad and can have fatal consequences.

6 0

3 years ago

Read 2 more answers

For most terrestrial ecosystems, pyramids of numbers, biomass, and energy are essentially the same-they have a broad base and a

GaryK [48]

Answer:

b. at each step, energy is lost from the system as a result of keeping the organisms alive

Explanation:

Generally Ecological pyramids helps to visualise the structure of Ecosystem.Its diagrammatically showed the relative amounts of numbers of organisms ,their energy, and the amount of energy that is converted in living tissue as usable mass (biomass) at different tropic levels.

Basically, large amount of energy is lost as energy flow from one tropic level to another in an ecosystem. This can be explained with the second law of thermodynamics; which states that in the conversion of energy from one form to another in a system, there is always a tendency towards disorderliness.That is the entropy changes of the universe can never be negative.Relatively in a biological system, this means that energy is lost in metabolic process( glycolysis, chemeosmosis, assimilation, growth .......) as heat, as organisms at one tropic level is consumed by another at the next level, from the base to the peak of these pyramids.

The amount of energy transfer efficiency among the two successive tropic levels is obtained by dividing the energy transfer at present tropic level with the energy transfer at previous tropic levels and mutiply the results by 100% . This known as Tropic level transfer efficiency(TLTE) .

The lower energy efficiency between successful present and previous tropic levels in these pyramids accounts for the similarities.

7 0

4 years ago