What are nudibranch? Only some of the most colorful sea creatures on Earth! These marine mollusks boast a variety of unique shapes and colors, and they live anywhere in the world's oceans, from the tropics to Antarctica. There are many different types of nudibranchs, some no longer than an inch, and some as long as two feet! Some use toxic appendages to defend themselves, while others use camouflage. Some even make their own chemicals to keep predators at bay. Why do nudibranchs have these defenses? Because they are naked! Nudibranch means "naked gills," so named for their soft bodies and their exposed gills, which sit atop their backs. While common to the ocean, these unusual creatures can be spotted on underwater dives. In 2–3 sentences, summarize the information in the paragraph.
48 answers
4, 6, 8, 8, 15
Which statement is true if Lindsey includes the number 23 in the list?
A.
The median would decrease.
B.
The median would increase.
C.
The mean would increase.
D.
The mean would decrease.
When a new number, 23, is added to the list, the sum of all the numbers will increase. Since the mean is calculated by dividing the sum of all the numbers by the total number of values, the mean will increase as a result.
2, 23, 27, 29, 30, 32, 32, 34, 35, 96
Select all the data values that are outliers.
A.
2
B.
27
C.
34
D.
96
D. 96
Since the rest of the values fall within a relatively close range, 96 stands out as significantly higher compared to the other numbers in the list. Therefore, the outlier(s) in this data set is 96.
A dot plot showing hours from 0 to 8 in the increments of 1 has one X at 0, 2 X's at 7 and seven X's at 8.
Which of the following statements is true regarding this data? Select all that apply.
A.
The median better represents these data than the mean.
B.
The mean is affected by the one student who was absent from school.
C.
The distribution is skewed since most students were in the school building for 7 or 8 hours.
A. The median better represents these data than the mean.
C. The distribution is skewed since most students were in the school building for 7 or 8 hours.
In this case, the median is a more appropriate measure of central tendency because it is less affected by extreme values like the one student who was absent. The mean can be influenced by outliers, so it might not accurately represent the typical amount of time spent by the students.
The distribution is also skewed to the right since most students spent either 7 or 8 hours in the school building, while fewer students had lower values. This creates an asymmetry in the data distribution.
3.7, 2.5, 2.3, 1.2, and 3.4
What will happen if 2 more grasshoppers with measurements of 2.3 and 3.2 inches are added?
A.
the mean will increase
B.
the median will increase
C.
the mean will decrease
D.
the median will decrease
A. The mean will increase.
When these additional values are included, the sum of the lengths will increase, resulting in a higher total. Since the mean is calculated by dividing the sum by the number of values, the mean will increase.
B. The median may or may not increase.
The median represents the middle value when the data is arranged in ascending or descending order. If the new values fall within the existing range, the median will remain the same. However, if the new values are placed on either side of the current median values, the median will change.
Therefore, the correct answer is:
A. The mean will increase.
(48 + 36)
Which is an equivalent expression that has numbers in the parentheses whose only common factor is 1?
A.
4(12 + 9)
B.
2(24 + 18)
C.
12(4 + 3)
D.
36(12 + 1)
Looking at the factors of 48 and 36, the closest factor that can be distributed is 12.
Therefore, the equivalent expression that satisfies the condition is:
C. 12(4 + 3)
By distributing the 12, we get:
12 * 4 + 12 * 3 = 48 + 36
A.
in 2 years
B.
in 8 years
C.
in 12 years
D.
in 24 years
The prime factorization of 4 is 2^2 and the prime factorization of 6 is 2 * 3.
To find the LCM, we take the highest power of each prime factor that appears in either number: 2^2 * 3 = 12.
Therefore, the next time both Mr. Hon and Ms. Jasper will purchase new cars in the same year is in:
C. 12 years.
The distribution will give:
4 * 3e - 4 * 8j
Which simplifies to:
12e - 32j
So, an equivalent expression to 4(3e - 8j) is 12e - 32j.
A.
hereditary rights
B.
ownership of the land
C.
the claim to divine right
D.
the people being governed
In Country X, the factors of production are all publicly owned and controlled by the government. The basic economic questions of what to produce, how to do so, and how to distribute goods are determined by Country X's government and not by market forces. Because they are set by central planners, prices do not signal to producers whether to increase or decrease production.
What kind of economy does Country X have?
A.
The government's role in setting the prices of goods shows that Country X has a market economy.
B.
The government's ownership of the factors of production shows that Country X has a market economy.
C.
The government's encouragement of entrepreneurship shows that Country X has a command economy.
D.
The government's control of the factors of production shows that Country X has a command economy.
Therefore, the correct answer is:
D. The government's control of the factors of production shows that Country X has a command economy.
A.
an embargo
B.
a tariff
C.
a quota
D.
a sanction
A. An embargo.
A.
by providing free medical care for all of their citizens
B.
by providing housing assistance for all of their citizens
C.
by giving tax breaks to companies that protect the environment
D.
by giving tax breaks to manufacturers that update their machinery
D. By giving tax breaks to manufacturers that update their machinery.
blocks all trade with another country
taxes certain classes of imported or exported goods
limits the volume of goods imported from a foreign country
tarif embargo quota
1. Tarif - taxes certain classes of imported or exported goods.
2. Embargo - blocks all trade with another country.
3. Quota - limits the volume of goods imported from a foreign country.
Therefore, the proper matching would be:
Tarif: taxes certain classes of imported or exported goods.
Embargo: blocks all trade with another country.
Quota: limits the volume of goods imported from a foreign country.
A.
by reducing the efficiency of production
B.
by improving the job skills of the population
C.
by improving access to natural resources
D.
by reducing competition between businesses
B. By improving the job skills of the population.
A.
what skills workers have
B.
what consumers demand
C.
what previous generations produced
D.
what the government wants to produce
D. What the government wants to produce.
A.
opportunity cost
B.
competition
C.
specialization
D.
entrepreneurship
C. Specialization.
Which statement would MOST LIKELY be true in market economy?
A.
Most people enter the same field of employment as their ancestors.
B.
Economic production decisions are made by a small council of experts.
C.
The government provides employment and necessary resources for its people.
D.
Business owners decide what goods to produce and at what price to sell them.
D. Business owners decide what goods to produce and at what price to sell them.
In a market economy, economic decisions are primarily driven by the interactions of buyers and sellers in the marketplace, rather than by the government. Private businesses or individuals, as owners, have the autonomy to make decisions about production, pricing, and selling of goods and services. This reflects the principles of supply and demand and the concept of free enterprise. Therefore, the correct answer is:
D. Business owners decide what goods to produce and at what price to sell them.
How do governments invest in human capital?
A.
by providing tax incentives to build factories
B.
by providing job-training programs for citizens
C.
by providing home-buying incentives for families
D.
by providing housing for those that cannot afford it
B. By providing job-training programs for citizens.
Governments invest in human capital by providing job-training programs that enhance the knowledge, skills, and abilities of individuals in the workforce. These programs aim to improve the job prospects and productivity of the population, leading to economic growth and development. While other options listed in the multiple-choice question, such as providing tax incentives for factories, housing incentives, or affordable housing, may also be initiatives undertaken by governments, they are not specifically aimed at investing in human capital. Therefore, the most accurate answer is:
B. By providing job-training programs for citizens.
A.
Most countries trade with other countries in order to make alliances.
B.
Most countries trade for foreign currency to promote economic growth.
C.
Most countries produce a surplus of goods that would be wasted otherwise.
D.
Most countries cannot efficiently produce everything their populations need.
D. Most countries cannot efficiently produce everything their populations need.
Countries engage in trade with each other because they have different resources, capabilities, and efficiencies in producing goods and services. By trading, countries can access goods and resources that they may not have domestically or may not be able to produce as efficiently. This allows them to meet the needs of their populations and enjoy a greater variety of products. International trade also promotes economic growth by stimulating competition, encouraging specialization, and fostering innovation. Therefore, the correct answer is:
D. Most countries cannot efficiently produce everything their populations need.
A.
new moon
B.
waxing moon
C.
waning moon
D.
full moon
In this phase, the moon is positioned directly opposite the Sun, with the Earth in between. As a result, the Sun's light fully illuminates the side of the moon that is facing Earth, making it appear bright and fully visible. Therefore, the correct answer is:
D. Full moon.
A.
new moon
B.
first quarter
C.
full moon
D.
last quarter