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3 years ago

Can someone help me with bio

Biology

1 answer:

arsen [322]3 years ago

8 0

2. Correct

3. Smooth muscle
4. Amino acids
5. Nervous system, skeletal system, and muscular system

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A friend of yours loves hamsters. He has brown, red, and white hamsters.

Likurg_2 [28]

Answer:

breed the red hamsters with blue eyes in hopes of getting their babies and sell them.... I have no idea what else you could do lol.

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3 years ago

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How do human sex chromosomes keep the numbers of males and females roughly equal?

Gnesinka [82]

Answer:

It is simple mathematics , because sex chromosome XX are found in female and XY in male the remaining 22 pairs are the same in both.

Explanation:

I looked it up. I'm sorry if it's wrong.

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3 years ago

If the activation energy required for a chemical reaction were reduced, what would happen to the rate of the reaction?

Ratling [72]

The rate would increase because more molecules would collide at the activation energy, which will cause more molecules to react, and thus it will speed up the reaction rate.

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3 years ago

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Periods of time when evolution took place quickly followed by long periods of stability

mihalych1998 [28]

Answer:

The theory of punctuated equilibrium states that evolutionary change is characterised by short periods of rapid evolution followed by longer periods of stasis in which no change occurs. ... To meet this challenge, evolutionary biologists attempt to describe how and why evolutionary changes accumulate over time

Explanation:

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2 years ago

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.

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3 years ago