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3 years ago

Explain how interactions can be both beneficial and harmful to the organism in a community

2 answers:

7 0

Interactions to an organism can be both harmful and beneficial due to the organism's circumstances. For example by adding tadpoles to an eco system it results in the tadpoles eating all the food thus killing the other organisms. Whereas by adding plants to an ecosystem it provides shelter for the organisms and possibly food being beneficial.

Luda [366]3 years ago

4 0

Answer:

An ecological community consists of all the populations of all the different species that live together in a particular area.

Interactions between different species in a community are called interspecific interactions.

The main types of interspecific interactions include competition, predation, mutualism, commensalism, and parasitism.

Symbiosis

Symbiosis occur when two species live together in a long-term, intimate association. In everyday life, we sometimes use the term symbiosis to mean a relationship that benefits both parties

Parasitism

It involves two species have a close, lasting interaction that is beneficial to one, the parasite, and harmful to the other, the host.

Commensalism

In a commensalism, two species have a long-term interaction that is beneficial to one and has no positive or negative effect on the other. For instance, many of the bacteria that inhabit our bodies seem to have a commensal relationship with us. They benefit by getting shelter and nutrients and have no obvious helpful or harmful effect on us.

Mutualism

In a mutualism, two species have a long-term interaction that is beneficial to both of them. For example, some types of fungi form mutualistic associations with plant roots. The plant can photosynthesize, and it provides the fungus with fixed carbon in the form of sugars and other organic molecules

Predation

In predation, a member of one species—the predator—eats part or all of the living, or recently living, body of another organism—the prey. This interaction is beneficial for the predator, but harmful for the prey. Predation may involve two animal species, but it can also involve an animal or insect consuming part of a plant, a special case of predation known as herbivory

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Choose the aqueous solution that has the highest boiling point.These are all solutions of nonvolatile solutes and you shouldassu

lesya [120]

Answer: The correct answer is Option b.

Explanation:

The expression of elevation in boiling point is given as:

$\Delta T_b=i\times k_b\times m$

where,

$\Delta T_b$ = Elevation in boiling point

i = Van't Hoff factor

$T_b$ = change in boiling point

$k_b$ = boiling point constant

m = molality

For the given options:

Option 1: 0.100 m $NaNO_3$

Value of i = 2

So, molal concentration will be = $(0.100)\times 2=0.200m$

Option 2: 0.100 m $Li_2SO_4$

Value of i = 3

So, molal concentration will be = $(0.100)\times 3=0.300m$

Option 3: 0.200 m $C_3H_8O_3$

Value of i = 1 (for non-electrolytes)

So, molal concentration will be = $(0.200)\times 1=0.200m$

Option 4: 0.060 m $Na_3PO_4$

Value of i = 4

So, molal concentration will be = $(0.060)\times 4=0.24m$

As, the molal concentration of $Li_2SO_4$ is the highest, so its boiling point will be the highest.

Thus, the order of increasing boiling points follows:

$NaNO_3=C_3H_8O_3$

Hence, the correct answer is Option b.

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3 years ago

Which statement regarding liquids is true? 1.can be converted to solids by adding energy in the form of heat 2.occupy a definite

GuDViN [60]

Answer:

4.occupy a definite volume while taking the shape of their container.

Explanation:

Since the particles in a liquid are quite close together (not as close as a solid) they have a definete volume, and the particles are still able to move around as they wish they have no definite shape and take upon the shape of the container they are placed in.

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3 years ago

g Calculate the theoretical yield (in grams) of your product if you start with 0.50 grams of E-stilbene. The molecular weight of

sattari [20]

Answer:

0.9433g

Explanation:

Theoretical yield is defined as the mass produced assuming all reactant reacts producing the product.

Assuming the reaction is 1:1, we need to find the moles of E-stilbene (Reactant). If all reactant reacts, the moles of E-stilbene = Moles of product.

Using the molar mass of the product we can find the theoretical yield as follows:

Moles E-stilbene:

0.50g * (1mol/180.25g) = 0.00277 moles = Moles Product

Mass Product = Theoretical yield:

0.00277 moles * (340.058g/mol) = 0.9433g

4 0

3 years ago

Increasing the concentration of a reactant shifts the position of a chemical equilibrium towards formation of more products. wha

Natalija [7]

<h2>The required "option is e)".</h2>

Explanation:

The Rate of formation of products depends on the concentration of reactants or the forward reaction increases on increasing the rate of the concentration.
There is no effect on the equilibrium rate when the concentration of reactants and products is constant.
Forward reaction slows down when the reactant concentration is decreased.
On increasing the amount or concentration of reactant the chemical equilibrium shifts towards formation of more products.
Hence, the forward reaction speeds up.

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3 years ago

How many atoms are in 0.500mol of calcium?

creativ13 [48]

Answer:

3.01×10²³ atoms of calcium

Explanation:

number of moles = number of atoms/Avogadro's constant

n = N/NA

N = n×NA = 0.500 mol×6.02×10²³ mol^-1

N = 3.01×10²³ atoms of calcium

3 0

3 years ago