BIOLOGY HIGH SCHOOL

Biology is a very cut-and-dried science.
a. True
b. False

Answers

Answer 1
Answer: False false false. Biology is a very dynamic science because we are still discovering new species. As our technology advances, we are learning more than ever before. Case in point: when moi' was in school, there were only 3 kingdoms! The atom only contained 3 particles. Pluto was a planet. Man had never been to the moon! Look at us now!

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Actions that are reactions to a stimulus are called _____________________.

Answers

The answer is reflex actions.


A reflex action is an involuntary and rapid reaction to a stimulus. So, when a receptor detects a stimulus, the information is sent to relay neuron through a sensory neuron. Relay neuron sends information to the effector through a motor neuron and effector produces a response.

What do two different neutral isotopes of the same element have in common?

Answers

The answer to this question is that two different neutral isotopes ofthe same element will have the same atomic number. This is due to themhaving the same number of protons, and it is these protons whichdetermine the atomic number. However, these istotopes will havedifferent masses due to a difference in the amount of neutrons.

Which of the following was part of the ozone depletion problem?Mining waste
Chlorofluorocarbons
DDT

Answers

The answer is Chlorofluorocarbons

Chlorofluorocarbon (CFC) is used as the aerosol propellant. An aerosol is a suspension in the gaseous form of solid or liquid particles. When these compounds reach the stratosphere, UV light affects them and they release chlorine atoms. Chlorine atoms are capable of breaking down ozone molecules. With fewer ozone molecules, the ozone layer becomes thinner and harmful UV light passes through it. 

The correct answer is B. Chlorofluorocarbons.

I took the test in K12 so I am 100% percent positive

Fruit flies are commonly used in genetic investigations that focus on traits passed from parents to offspring over several generations. What can you infer is the reason fruit flies are the most commonly used organism for this type of investigation?

Answers

Answer:

The correct answer will be-short life span and rapid reproductive.

Explanation:

Fruit flies or Drosophila melanogaster is a model organism used to study the principles of genetics as:

1. Short life span- they have a very short life span about 40-50 days in which they complete their life cycle.

2. Reproduction- The reproduction in an organism is very rapid that is they reproduce and produce a large number of offsprings in a short period of time.

Thus, scientist uses them to study genetics and observe traits in a small period of time.
Fruit flies reproduce rapidly and they have easily observable traits.

How do you call the total account debt as of the statement date?A.) APR
B.) Balance
C.) Finance Charges

Answers

The total account debt, as of the statement date, is called the balance. APR is the interest rate and finance charges is the fee representing the credit. The correct answer is B. 

Answer:

B) balance

Explanation:

on plato

what might happen to a native fish species if an introduced fish species that ate the same foods was released in the pond?

Answers

well the native species might have a possibility of going endangered (in that specific community)

they will obviously compete with the introduced species, but you have to take into consideration that predators who eat fish might prefer one over the other, and how fast each species reproduces
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