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3 years ago

Is grass poking through a sidewalk crack primary or secondary succession? Why?

Biology

1 answer:

Dmitriy789 [7]3 years ago

5 0

Answer:

Primary and secondary succession differ because primary is where no soil or organisms exist, but secondary succession is where soil and organisms exist. ... Grass poking through a sidewalk crack would be considered secondary succession because before the sidewalk was built, an ecosystem was there.

Hope it helps

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Open Ended Identify factors that can influence enzyme activity. Describe the effect of each.

expeople1 [14]

Temperature, pH, enzyme concentration, substrate concentration, and the existence of any inhibitors or activators are a few of the variables that influence enzyme activity.

The rate of the reaction increases proportionally as the enzyme concentration rises. When diagnosing disorders, this feature is utilized to gauge the serum enzymes' activity.

The enzymes are highly sensitive to heat changes because they are proteins. Unlike typical chemical processes, enzyme activity is temperature-dependent. Each enzyme has a certain temperature range where it is more active, as you have seen. The ideal temperature, which falls between 37 and 40 degrees Celsius, is at this point.

When there is a certain amount of enzyme present, the rate of the enzymatic reaction rises as the concentration of the substrate rises until a limiting rate is achieved, after which additional increases in the concentration of the substrate have no effect on the reaction rate.

The most accurate way to estimate a solution's hydrogen ion concentration (H+) is to use the potential of hydrogen (pH). Additionally, it establishes whether the liquid is basic, acidic, or neutral. In general, liquids with a pH of 7 or lower are classified as acids, whereas liquids with a pH of 7 or higher are classified as bases or alkalines.

For optimal activity, several enzymes need specific inorganic metallic cations, such as Mg2+, Mn2+, Zn2+, Ca2+, Co2+, Cu2+, Na+, and K+. Anions are also occasionally required for enzymes.

learn more about enzyme activity here: brainly.com/question/13365011

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2 years ago

In pea plants, round seed shape (R) is dominant over wrinkled (r), Write the geno type for a plant that is homo zygous dominant

solniwko [45]

Answer: RR

Explanation:

Homo zygous basically means the same and it asked for the dominant gene type.

3 0

4 years ago

Which statement best describes a keystone species

Nikolay [14]

It has a strong influence on the ecosystem

7 0

3 years ago

Read 2 more answers

how soil gets affected by the repeated growing of crops in the same field how does use of fertilizers help the farmers

Anika [276]

Answer:

Repeated growing of crops in the soil decreases the fertility of the soil as the crops use up the nutrients of the soil. ... Farmers replenish the soil of the depleted nutrition with the help of fertilizers or crop rotation. Fertilizers are chemical substances that are rich in a particular nutrient.

8 0

3 years ago

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Suppose that in plants, smooth seeds (S) are dominant to wrinkle seeds (s) and tall plants (T) are dominant to short plants (t).

djyliett [7]

Answer:

1/4

Explanation:

According to the given information, the dominant plant is back-crossed with a homozygous recessive parent. Therefore, the dominant plant is heterozygous for both genes.

The genotype of the tall plant with smooth seeds would be = TtSs

And the genotype of the dwarf parent with wrinkled seeds = ttss

A cross between TtSs x ttss gives heterozygous tall plants with smooth seeds (TtSs) in 1/4 ratio.

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3 years ago