BIOLOGY HIGH SCHOOL

Select the word that best fits the definition: Economic activity characterized by fluctuating levels of growth and declinea. job security
b. interest rate
c. economy
d. business cycle

Answers

Answer 1
Answer:

Answer:

Business cycle

Explanation:

The business cycle can be known as economic cycle is the cycle in which the gross domestic product can be seen moving in upward and downward direction.

The length of this cycle is the period in which consists of single boom and contraction sequence.

It shows the fluctuating levels of growth and decline in the economy.
Answer 2
Answer:
economy maybe because it has the word economic in it

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What were four lines of evidence Darwin used to support his argument for evolution?

Answers

Here are the following evidences that Charles Darwin used to support his argument for evolution:
Fossil history - This is used in order to study the historical evolution of animals.
Geography - This was used in order to study the strains of evolved species in various areas. 
Embryology  - This was used in order to prove that evolution is based on birth.
Anatomy - This was studied in order to learn how living species evolve based on surroundings and how their body parts work.

Which feature of sugarcanes suggests that they are stems?The presence of scaly leaves and axillary buds



A high quantity of sugar



The development of adventitious roots

Answers

The feature of sugar canes that suggests that they are stems is A. the presence of scaly leaves and auxillary buds. Leaves are formed on the stems such that auxiliary buds are also stemming from. Sugar is found in the leaves while roots are another parts from stems

Given how the process of evolution appears to occur, how might concepts presented in this unit be used to help predict how any given organism might evolve in the future? How might this knowledge lead to human intervention, positive or negative, in that organism’s natural evolutionary process?

Answers

A general ballpark how one can predict the way how evolution will work in the future would be by thinking about the requirement of a certain area or environment and which changes would be necessary and relevant for any organism to thrive with its new changes. 

This could help people speeden up this process by enabling organisms to develop such traits faster, as well as ourselves. 

Bacteria share genetic material through the processes called bacterial conjugation, transformation, and ______.A. Transduction
B. Conduction

I'm thinking it's probably A, but I'm not sure....

Answers

conduction is the transfer of heat so A would be correct

Answer:

Transduction

Explanation:

The purines in DNA area. thymine and cytosine
b. thymine and guanine
c. adenine and guanine
d. adenine and cytosine

Answers

C - adenine and guanine

A population of deer is separated by an emerging volcano. The two populations come back into contact 200 years later, but are incapable of breeding. Which of the following best describes the process that occurred?A)adaptation
B)speciation
C)convergent selection
D)stabilizing selection

Answers

Answer:

B)speciation

Explanation:

Speciation is the term used to refer to the division of a lineage that produces two or more different species. In a nutshell, we can say that this is the process of the emergence of a new species, and the crucial event for this to happen is reproductive isolation. This reproductive isolation impedes the gene flow, therefore, obeying the biological concept of species, we say that a new species has emerged.

An example of speciation is shown in the question above, where a volcano separated two species and left them in reproductive isolation. The result of this was that two populations became so different from one another that they became unable to breed, creating new species.

B is the correct answer for e2020
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