The introduction of invasive species to an ecosystem can change the dynamic of the among the species

Can provider gap 4, the communication gap, be closed prior to closing any of the other three provider gaps? why or why not?

pentagon [3]

<span>Gap 4, which deals with lowering customer expectations, can be closed at any time. While the first three gaps are concerned with raising company performance to meet expectations, gap 4 aims to lower customer expectations to meet perceptions. The two approaches to closing the customer gap operate on different principles and therefore can occur independently. Incidentally, closing gap 4 can be more economical than closing the other gaps.</span>

7 0

2 years ago

A slice of pizza has 500 kcal. If the pizza is burned and its heat is used to warm a 50-L container of cold water, what would be

Vinvika [58]

Given:
The heat content of the pizza is Q = 500 kcal
The volume of the cold water is V = 50 L
The mass of a liter of cold water is 1 kg.

Calculate the mass, M, of cold water.
M = (50 L)*(1 kg/L) = 50 kg

The specific heat of water is
c = 4.184 kJ/(kg-K)

Also,
1 kcal = 4184 J, therefore
Q = (500 kcal)*(4184 J/kcal) = 2.092 x 10⁶ J

Let ΔT = increase in temperature of the cold water, °C (same as K).
Then
Q = M*c*ΔT
or
ΔT = Q/(M*c)
$\Delta T = \frac{(2.092 \times 10^{6} J)}{(50 \, kg)(4.184 \times 10^{3} \, \frac{J}{kg-K)}) } =10 \,K=10 \,^{o}C$

Answer: The temperature increases by 10 °C (or 10 K)

4 0

2 years ago

1. Suppose that a sample of beef broth initially contains

iren [92.7K]

From the calculations, the rate of growth of the culture is 2.88.

<h3>What is exponential growth problem?</h3>

We apply the exponential growth problem when there is an exponential increase.

Thus, we have; P =Poe^rt

P = amount at time t

Po = amount originally present

t = time taken

r = rate of growth

1.6 × 10^6 = 16e^4r

1.6 × 10^6/16 = e^4r

1.0 * 10^5 = e^4r

ln 1.0 * 10^5 = ln e^4r

11.5 = 4r

r = 11.5/4

r = 2.88

Learn more about exponential growth:brainly.com/question/11487261

#SPJ1

4 0

2 years ago

Explain the 6 steps of how Darwin theorized how the finches formed new species:

Scilla [17]

Overproduction
Most species produce more offspring than can survive.

Competition
Since living space and food are limited, organisms must compete for the necessities.

Variation
Differences between individuals in a population.

Adaptations
Any kind of inherited trait that improves an organism's chances of survival.

Natural selection
The environment selects organisms with optimal traits to be the parents of the next generation.

Speciation
Over many generations, favorable adaptations accumulate and may result in a new species.

8 0

2 years ago

In a plant, leaf color and leaf shape are controlled by two linked genes Leaves of the wild-type plant are red. A recessive muta

Brrunno [24]

Solution :

Red is dominant over the white leaves and pointed is dominant over smooth.

Red = R , white = r

Pointed = P , smooth = p

Red, pointed x white,smooth ------ Parents

RRPP rrpp

RP rp ----------------- Gametes

RrPp -------- $F_1$

(red, pointed)

When this $F_1$ is test crossed,

RrPp x rrpp ---- $F_1$ test cross

Gametes → rp

RP ---------- RrPp - red, pointed - 36 parental type

Rp ---------- Rprp - red, smooth - 14 re- combination

rP ----------- rrPp - white pointed - 10 re- combination

rp ----------- rrpp - white, smooth - 40 - parental type

Total = 100

As this ratio is deviating from 1:1:1:1, it indicated the two genes are linked.

Linkage strength = percentage of crossing over = map distance between the genes.

Percentage crossing = recombination frequency = percentage of recombination.

Recombination frequency $=\frac{\text{total no. of recombination}}{\text{total no. of progeny}}\times 100$

$=\frac{14+10}{100} \times 100$

= 24 %

= 24 map units

4 0

2 years ago