BIOLOGY HIGH SCHOOL

If one amino acid in a sequence of several hundred is changed, a mutation can result. a. True
b. False

Answers

Answer 1
Answer: this is true
if one single amino acid is changed then the result can be a mutation.
 
Answer 2
Answer:

Answer:

true

Explanation:

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13. Which of the following is not required by animals to control body temperature? A. Animals must switch between ectotherm and endotherm methods. B. Animals must be able to get rid of excess heat when temperatures increase. C. Animals must be able to conserve heat when temperatures drop. D. Animals must find a source of heat.

Answers

C. Animals must be able to conserve heat when temperatures drop. 

The panda is an endangered species that feeds on bamboo, which only grows in certain forests.how will the destruction of such forest affect the pandas population growth?There will be no effect on reproduction, so it's population growth will be uniform.
Population growth will be limited due to increase in competition for food.
Due to adaptive qualities of panda species, it's population will increase

Answers

The answer is: Population growth will be limited due to increase in competition for food.

Competition is an interaction between organisms. If resources, such as food, water, sunlight, territory, are limited and several species depend on these resources, then, they must compete with other species to gain the resources. With reduced bamboo forests, the competition for bamboo will increase, and also, pandas will be more prone to predators and diseases. This will lead to the limited population growth.

The other two statement are not true because, when survival is threatened, the reproduction will be put aside. Also, the adaptive qualities of panda species are not good since the are endangered.

The answser would be:

Population growth will be limited due to increase in competition for food.

A particular plant species is pollinated by a certain insect species. The insect species depends on the plant species for food. Which term describes how this relationship forms?reproductive isolation

co-adaptation

mass extinction

instantaneous speciation

Answers

A particular plant species is pollinated by a certain insect species. The insect species depends on the plant species for food. This relationship is based on co-adaptation.  

Here co-adaptation refers to the mutual adaptation between the given species(plants and insects) that depend upon each other.    
I think it's co adaption but let me check

______ embedded in the cell membrane can allow some materials through.

Answers

Proteins embedded in the cell membrane can allow some materials through. Proteins help plasma membrane to create channels that will serve as the passage of hormones or ion in and out. The material is either recognized by receptor or attached to the carrier molecule.
the answer is proteins

Within eukaryotic cells, there is an intricate network of _______ with unique functions.

Answers

I think Organelles is your answer(:

Answer the following questions: 1. The easiest way to save for your emergency fund is to use your____.A. existing savings
B. discretionary monies
C. second job
D. parents

2. When computing how many hours you need to work at a second job to meet a savings goal, you should___.
A. calculate the realized income at your primary job
B. calculate your savings rate
C. calculate the amount needed and divide by the hourly rate at the second job
D. calculate the amount needed and divide by the realized hourly rate at the second job.

Answers

1. The easiest way to save for your emergency fund is to use your____.
B. discretionary monies


2. When computing how many hours you need to work at a second job to meet a savings goal, you should___.

A. calculate the realized income at your primary job

Answer:

1. Option B

2. Option A

Explanation:

1. Discretionary income is basically the money that is left behind with an individual for his/her expenditure on recreational activities, vacations, nonessential goods and services etc. after paying all taxes and meeting out all essential personal necessities.  

Hence, in order to save for emergency it would be better to use discretionary monies instead of spending on luxury and comfort.  

2.  

Realized income is the actual earnings in the form of wages and salary. Thus a person needs to analyze his/her realized income so that he/she could work out a plan to determine extra money requirement. And based on this additional requirement, working hours can be determined based on hourly rate/charges.  
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