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2 years ago

36. how can you increase surface area but not volume of an object? biology

1 answer:

3 0

Folds, wrinkles, etc!
by folding the membrane of an organelle, surface area is optimized while volume remains the same. that is why mitochondria looks folded on the inside when you see pictures of it. the higher the surface area to volume ratio, the more efficient the organelle.

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Using a geometric growth model to predict population growth, a population of 10 individuals at time zero with a finite growth ra

Grace [21]

Answer: Option E, in 12 years.

Explanation:

A geometric growth model is characterized by its finite growth rate, known as lambda. The size of the population after a unit of time has passed can be calculated using the last known size and lamba as:

$N_{t+1} = \lambda * N_t$

Starting from the initial value of population, the next one will be calculated multiplying by 1.4, and the next one multiplying again by 1.4, thus we can define a function that relates the time passed in year to the size of the population:

$N(t) = \lambda^{t} *N_0$

Substituting our values we get the function that defines the growth of our poupulation:

$N(t) = 1.4^{t} *10$

Then, we just have to clear the t that gives a population of 500:

$500 = 1.4^t*10, divide\ both\ sides\ by\ 10\\50 = 1.4^t, apply\ log_{1.4}(x)\ to\ both\ sides\\log_{1.4}(50)=t\\11.63=t$

Thus, at 12 years, the population will be greater than 500.

5 0

2 years ago

Your sister calls you crying because she just hit an animal with her car, and she thinks it was a black-and-white colobus monkey

inna [77]

<h2>Black-and-white colobus monkeys are Old World monkeys and are not found in North America. She probably hit a skunk.</h2><h2>Explanation:</h2>

Skunk, also called polecat, black and white mammal discovered essentially in the Western Hemisphere, that utilizes scent glands to discharge a toxic smell in defense.

The term skunk, alludes to something other than the notable striped skunk (mephitis). Basically nighttime, skunks are various carnivores that live in a wide variety of natural surroundings, including deserts, woodlands, and mountains. Most are about the size of a housecat, yet some are essentially smaller.

7 0

2 years ago

The plasma membrane is composed of a phospholipid bilayer with embedded proteins. What is one of the functions of the embedded p

Alik [6]

Answer:

option C is the right answer

5 0

2 years ago

Read 2 more answers

Explain how the reduction and rearrangement are accomplished in meiosis.

PolarNik [594]

Answer:

Reduction is accomplished by (homologous) chromosomes pairing and then separating to move to opposite poles during the 1st meiotic division. ... Rearrangement is achieved by the chromosomes crossing over into random alignments of tetrads, resulting in the genetic variation of the offspring.

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5 0

3 years ago

Qualitative data is data that is descriptive rather than numerical?

Ratling [72]

Yes it is quantitative is numerical data if you needed it

3 0

3 years ago

Read 2 more answers