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3 years ago

Which of the following materials is a good choice for a greenhouse framework?

Biology

2 answers:

LenaWriter [7]3 years ago

6 0

Answer:

aluminum

Explanation:

polet [3.4K]3 years ago

6 0

Answer : Aluminum is the correct answer

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A scientist observes that, when the pH of the environment surrounding an enzyme is changed, the rate the enzyme catalyzes a reac

vredina [299]

Answer:

A- A pH change can cause the enzyme to change its shape

Explanation:

A rise or fall in the pH of the medium from the optimum of pH 7 usually affect the enzymes' active sites of and therefore the shape and the rate of enzyme activity.

Assuming the pH is too low, the enzyme medium becomes acidic;Acidosis. The high Hydrogen ions concentration interacts with the R-groups of the amino acids moiety of the enzymes, this interaction affects the ionization of the R-groups, disrupting the ionic bonding holding these R-groups in shape.

This results in loss of the 3-Dimensional shape arrangements of the protein molecule and therefore of the active sites. Since active sites of enzymes determines the specificity of the enzymes substrate- complex to give enzyme-product complex, the catalytic activity of the enzymes decreases, the rate of reaction decreases,and products formation stops, and the reaction also stops.

The same is applicable to extremely high pH=Alkalosis.

However, the effective buffer system of the body prevents this scenarios from happening in real sense in the body. Through mopping by the haemoglobin, excretion by the kidney, etc

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3 years ago

Which type of immune system cell engulfs pathogens and other foreign particles?

FromTheMoon [43]

A macrophage is a large phagocytic cell that engulfs foreign particles and pathogens. So Macrophage.

Hope this help! :)

6 0

2 years ago

Explain the process of "Natural Selection." Use and underline/highlight the following words correctly in your explanation: (6 wo

MArishka [77]

Due to the overproduction of offspring with only finite resources, species begin to engage in competition for survival. In order to increase their chance of survival, certain species will begin to develop genetic variations that allow them survival advantages.

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3 years ago

uysha [10]

Answer:

Difference Between Endangered Species and Threatened Species. ... what are the other causes apart from humans that can drive an entire species to ... When a species exist no longer, it is considered as extinct.

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3 years ago

the eastern kingbird hunts by catching flying insects in mid-air, an approach which requires impressive and energetic acrobatic

tangare [24]

It is safe to assume that the eastern kingbird will have a type 2 functional response to an increase in prey abundance.

The functional response, in ecology, is a data-based description of the behavior of certain animals' consumption rates in response to a change in prey density. This can be of three kinds:

Type 1: An increase in consumption
Type 2: A decrease in consumption
Type 3: Decreased consumption, followed by a quick increase.

The Eastern kingbird is likely to follow a type 1 functional response to the presence of more prey. The reason for this, aside from it being the most common response, is that the eastern kingbird consumes insects, which do not provide a great amount of energy, in a way that consumes much energy. Therefore it is logical to assume that the kingbird will consume more prey to better sustain its rigorous feeding habits.

To learn more visit:

brainly.com/question/845236?referrer=searchResults

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2 years ago