# ACT Science : How to find synthesis of data in biology

## Example Questions

### Example Question #201 : How To Find Synthesis Of Data In Biology

As temperature increases, what happens to the surviving number of bacteria?

The number first decreases, and then increases

The number first increases, and then decreases

The number increases

The number decreases

The number first increases, and then decreases

Explanation:

The correct answer is that the number of surviving bacteria first increases, and then decreases, as temperature increases. Note that the data in these tables is the number of bacteria that have died, so the opposite percentage survive. Therefore, more bacteria survive closer to 37 degrees Celsius, but not higher or lower than that.

### Example Question #201 : How To Find Synthesis Of Data In Biology

If you conducted a new experiment testing this antibiotic with a concentration of , what would you expect the percentage of dead bacteria to be at a temperature of 37 degrees Celsius and a pH of 7.8?

Explanation:

The correct answer is . Using Table 2, which has an experimental temperature of 37 degrees Celsius, find the row for a pH of 7.8. The percentage of dead bacteria for  is , and for  is . Given that your new dosage is , which is exactly between these values, you can hypothesize that the percentage of dead bacteria in your test will be .

### Example Question #202 : How To Find Synthesis Of Data In Biology

Scientists want to see how any athlete's heart health is different from others. The scientists monitor four individual's (A, B, C and D) heart rates during sleep, rest and intense exercise. Only one athlete was tested and the data was recorded in the table below in heart beats per minute.

Which individual was the athlete?

A

C

All of these

B

D

A

Explanation:

Athletes typically have stronger hearts than non-athletes which means that an athlete's heart beats less in a minute when sleeping or resting. This leads to the correct answer that individual A is the athlete.

Alternatively, it was stated that only one athlete was tested. Individual A's resting heart rate and heart rate while sleeping are significantly lower than the other tested individuals. Due to this large difference, individual A is the athlete due to the differences in data from the other individuals.

### Example Question #485 : Biology

Scientists want to see how any athlete's heart health is different from others. The scientists monitor four individual's (A, B, C and D) heart rates during sleep, rest and intense exercise. Only one athlete was tested and the data was recorded in the table below in heart beats per minute.

If moderate activity was performed, which best represents the range of heart beats, in beats per minute, that would have been noticed?

Explanation:

It can be seen in the data that as more activity is being done, the heart rate of the individual increases. The individuals were tested during times of rest and intense activity, but not moderate activity. It is reasonable to believe that the heart rates during moderate activity would be higher than resting, but lower than intense exercise. This leads to the only range of data possible as 100-130 beats per minute.

### Example Question #486 : Biology

The mountain chickadee is a bird native to Colorado’s coniferous forests, preferring to live in areas 6,000 to 12,000 feet in elevation. They are a resident species, meaning they do not migrate south for the winter.

The mountain chickadee nests in coniferous trees, caves, snags and abandoned foxholes and eats insects, berries, and seeds. They tend to stay close to the breeding ground for most of their adult lives, and do not care for treeless valleys outside of the high country.

Researchers wish to know more about the nesting behaviors of these animals. For a calendar year, these researchers documented nesting patterns of the male chickadees in a coniferous forest in Northern Colorado. The researchers took note of both the season as well as the characteristics of the chickadee nests in order to establish a pattern. The results are documented below.

Mountain Chickadee Nesting and Survival Patterns June 2011- May 2012:

 Summer Fall Winter Spring Location within Forest Coniferous tree branch Woodpecker hole Abandoned foxhole Coniferous tree cavity Average Time to Build Nest 6 hrs 8 hrs 12 hrs 8 hrs Average Duration of Stay 8 weeks 6 weeks 4 weeks 6 weeks Average Number of Offspring 2 1 0 3 Average Death Rate of Bird 1:15 1:12 1:8 1:12

According to the data, which is the most dangerous season for the chickadee?

Spring

Summer

Fall

Winter

Winter

Explanation:

The death rate for the chickadee is much higher in the winter than any of the other months. Also, the length of stay in the nest is smaller, leaving the birds exposed to the elements and to predators for longer periods of time. Finally, there is likely less food in the winter than in the other months, given that the birds eat insects and berries.

### Example Question #487 : Biology

The mountain chickadee is a bird native to Colorado’s coniferous forests, preferring to live in areas 6,000 to 12,000 feet in elevation. They are a resident species, meaning they do not migrate south for the winter.

The mountain chickadee nests in coniferous trees, caves, snags and abandoned foxholes and eats insects, berries, and seeds. They tend to stay close to the breeding ground for most of their adult lives, and do not care for treeless valleys outside of the high country.

Researchers wish to know more about the nesting behaviors of these animals. For a calendar year, these researchers documented nesting patterns of the male chickadees in a coniferous forest in Northern Colorado. The researchers took note of both the season as well as the characteristics of the chickadee nests in order to establish a pattern. The results are documented below.

Mountain Chickadee Nesting and Survival Patterns June 2011- May 2012:

 Summer Fall Winter Spring Location within Forest Coniferous tree branch Woodpecker hole Abandoned foxhole Coniferous tree cavity Average Time to Build Nest 6 hrs 8 hrs 12 hrs 8 hrs Average Duration of Stay 8 weeks 6 weeks 4 weeks 6 weeks Average Number of Offspring 2 1 0 3 Average Death Rate of Bird 1:15 1:12 1:8 1:12

What could cause the death rate to increase in the winter and decrease in the summer?

Nesting challenges, mild conditions, and predators

Food surplus

Harsh conditions, fewer predators and a small offspring rate

Harsh conditions, predators, and a lack of safety

Harsh conditions, predators, and a lack of safety

Explanation:

The answer is harsh conditions, a lack of safety and predators. This is the only case in which all of the options would themselves alone increase the death rate. Together, they would account for a higher death rate in the winter than in the summer months where the rate has decreased. One could consider fewer offspring a reason for a high death rate but remember death and birth rates only effect population, not each other.

### Example Question #201 : How To Find Synthesis Of Data In Biology

The mountain chickadee is a bird native to Colorado’s coniferous forests, preferring to live in areas 6,000 to 12,000 feet in elevation. They are a resident species, meaning they do not migrate south for the winter.

The mountain chickadee nests in coniferous trees, caves, snags and abandoned foxholes and eats insects, berries, and seeds. They tend to stay close to the breeding ground for most of their adult lives, and do not care for treeless valleys outside of the high country.

Researchers wish to know more about the nesting behaviors of these animals. For a calendar year, these researchers documented nesting patterns of the male chickadees in a coniferous forest in Northern Colorado. The researchers took note of both the season as well as the characteristics of the chickadee nests in order to establish a pattern. The results are documented below.

Mountain Chickadee Nesting and Survival Patterns June 2011- May 2012:

 Summer Fall Winter Spring Location within Forest Coniferous tree branch Woodpecker hole Abandoned foxhole Coniferous tree cavity Average Time to Build Nest 6 hrs 8 hrs 12 hrs 8 hrs Average Duration of Stay 8 weeks 6 weeks 4 weeks 6 weeks Average Number of Offspring 2 1 0 3 Average Death Rate of Bird 1:15 1:12 1:8 1:12

Which of the following is not a reasonable explanation for an average Winter offspring of zero?

The fox in the foxhole could crush the eggs

The death rate is too high to sustain new life

The winter is a difficult season to find a mate

The nesting time is too low to sustain eggs gestation time

The fox in the foxhole could crush the eggs

Explanation:

All explanations are reasonable except that the fox might steal or crush the eggs. The foxhole the birds are nesting in is abandoned, as indicated, and the birds would likely not stay long enough to await the return of a predator anyway, given that the duration of stay is so low. Realistically, the birds are probably too cold and working too hard to find food to sustain new life, given a high death rate and other harsh winter conditions.

### Example Question #201 : How To Find Synthesis Of Data In Biology

The mountain chickadee is a bird native to Colorado’s coniferous forests, preferring to live in areas 6,000 to 12,000 feet in elevation. They are a resident species, meaning they do not migrate south for the winter.

The mountain chickadee nests in coniferous trees, caves, snags and abandoned foxholes and eats insects, berries, and seeds. They tend to stay close to the breeding ground for most of their adult lives, and do not care for treeless valleys outside of the high country.

Researchers wish to know more about the nesting behaviors of these animals. For a calendar year, these researchers documented nesting patterns of the male chickadees in a coniferous forest in Northern Colorado. The researchers took note of both the season as well as the characteristics of the chickadee nests in order to establish a pattern. The results are documented below.

Mountain Chickadee Nesting and Survival Patterns June 2011- May 2012:

 Summer Fall Winter Spring Location within Forest Coniferous tree branch Woodpecker hole Abandoned foxhole Coniferous tree cavity Average Time to Build Nest 6 hrs 8 hrs 12 hrs 8 hrs Average Duration of Stay 8 weeks 6 weeks 4 weeks 6 weeks Average Number of Offspring 2 1 0 3 Average Death Rate of Bird 1:15 1:12 1:8 1:12

Researchers return to the chickadees' nesting area in October one season later. Likely, which of the following behaviors are they going to witness?

Chickadees building nests from the remnants of other birds' nesting sites

Chickadees searching for holes in the ground

Chickadees building nests from the remnants of other birds' nesting sites

Explanation:

October is in the fall season. During this season, offspring rates are low, and therefore so are mating rates. Both of these options are not reasonable. Similarly, the birds would not be searching for holes in the ground, as that is behavior more typical of the winter, when they will seek underground shelter. They might, though, be building nests from other bird nests, as the fall is a likely season for the chickadees to be nesting in woodpecker holes.

### Example Question #490 : Biology

The mountain chickadee is a bird native to Colorado’s coniferous forests, preferring to live in areas 6,000 to 12,000 feet in elevation. They are a resident species, meaning they do not migrate south for the winter.

The mountain chickadee nests in coniferous trees, caves, snags and abandoned foxholes and eats insects, berries, and seeds. They tend to stay close to the breeding ground for most of their adult lives, and do not care for treeless valleys outside of the high country.

Researchers wish to know more about the nesting behaviors of these animals. For a calendar year, these researchers documented nesting patterns of the male chickadees in a coniferous forest in Northern Colorado. The researchers took note of both the season as well as the characteristics of the chickadee nests in order to establish a pattern. The results are documented below.

Mountain Chickadee Nesting and Survival Patterns June 2011- May 2012:

 Summer Fall Winter Spring Location within Forest Coniferous tree branch Woodpecker hole Abandoned foxhole Coniferous tree cavity Average Time to Build Nest 6 hrs 8 hrs 12 hrs 8 hrs Average Duration of Stay 8 weeks 6 weeks 4 weeks 6 weeks Average Number of Offspring 2 1 0 3 Average Death Rate of Bird 1:15 1:12 1:8 1:12

What is a possible explanation for the sudden increase in duration of stay in a nest between winter and spring?

There is a correlating decrease in death rate

The nesting habits dictate an increased stay

There is a correlating increase in number of offspring

It is coincidence

There is a correlating increase in number of offspring

Explanation:

An increase in the number of offspring is a reasonable explanation of the extended stay in the nest in the springtime. We cannot prove there is a causation, but both phenomena occur at the same time, which at the very least is enough to suspect that both are correlated.

### Example Question #491 : Act Science

The mountain chickadee is a bird native to Colorado’s coniferous forests, preferring to live in areas 6,000 to 12,000 feet in elevation. They are a resident species, meaning they do not migrate south for the winter.

The mountain chickadee nests in coniferous trees, caves, snags and abandoned foxholes and eats insects, berries, and seeds. They tend to stay close to the breeding ground for most of their adult lives, and do not care for treeless valleys outside of the high country.

Researchers wish to know more about the nesting behaviors of these animals. For a calendar year, these researchers documented nesting patterns of the male chickadees in a coniferous forest in Northern Colorado. The researchers took note of both the season as well as the characteristics of the chickadee nests in order to establish a pattern. The results are documented below.

Mountain Chickadee Nesting and Survival Patterns June 2011- May 2012:

 Summer Fall Winter Spring Location within Forest Coniferous tree branch Woodpecker hole Abandoned foxhole Coniferous tree cavity Average Time to Build Nest 6 hrs 8 hrs 12 hrs 8 hrs Average Duration of Stay 8 weeks 6 weeks 4 weeks 6 weeks Average Number of Offspring 2 1 0 3 Average Death Rate of Bird 1:15 1:12 1:8 1:12

If the Spring begins with 12 chickadees, what could be a reasonable number of chickadees at the end of the Spring, considering three are female.

21

20

11

18