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fgiga [73]
2 years ago
14

What are the most difficult concepts for students to understand?

Biology
1 answer:
attashe74 [19]2 years ago
6 0
Duh. It's algebra. Didn't you know that?! 
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2 years ago
Three importance of soil air
Alex17521 [72]

Answer:

Explanation:

Soils provide plants with essential minerals and nutrients. Soils provide air for gaseous exchange between roots and atmosphere. Soils protect plants from erosion and other destructive physical, biological and chemical activity. Soils hold water (moisture) and maintain adequate aeration. And conspiracy theorist astronaut dose not believe that the moon or air exists lol hope this helps

8 0
2 years ago
Hypothesis:
AleksandrR [38]

Answer:

Objective(s):

In your own words, what was the purpose of this lab?

In this lab report, the purpose is that hamsters carry traits fro parents.

Hypothesis:

In this section, please include the if/then statements you developed during your lab activity. These statements reflect your predicted outcomes for the experiment.

Test One: If I breed a short fur, FF female with a short fur, Ff male, then I will expect to see (all short fur; some short and some long fur; all long fur) offspring.

All short fur

Test Two: If I breed a short fur, Ff female with a short fur, Ff male, then I will expect to see (all short fur; some short and some long fur; all long fur) offspring.

Some short and some long

Test Three: If I breed a long fur, ff female with a long fur, ff male, then I will expect to see (all short fur; some short and some long fur; all long fur) offspring.

All long fur

Procedure:

The procedures are listed in your virtual lab. You do not need to repeat them here. Please be sure to identify the test variable (independent variable) and the outcome variable (dependent variable) for this investigation.

Remember, the test variable is what is changing in this investigation. The outcome variable is what you are measuring in this investigation.

Test variable (independent variable):
Outcome variable (dependent variable):

Data:

Record the data from each trial in the data chart below. Be sure to fill in the chart completely.

Test One

 

 

Parent 1: FF

Parent 2: Ff

 FF

 FF

 Ff

 Ff

Phenotype ratio:

____0____ :

 ___4_____

short fur :

 long fur

Test Two

 

 

Parent 1: Ff

Parent 2: Ff

 FF

 Ff

 Ff

 ff

Phenotype ratio:

1 :

 ____3____

short fur :

 long fur

Test Three

 

 

Parent 1: ff

Parent 2: ff

 ff

 ff

 ff

 ff

Phenotype ratio:

4 :

 ___0_____

short fur :

 long fur

Conclusion:

Your conclusion will include a summary of the lab results and an interpretation of the results. Please write in complete sentences.

1. Which genotype(s) and phenotype for fur length are dominant? FF

2. Which genotype(s) and phenotype for fur length are recessive? ff

3. If you have a hamster with short fur, what possible genotypes could the hamster have? It would probably be Ff or a ff

4. If you have a hamster with long fur, what possible genotypes could the hamster have? It would be Ff or an FF

5. Did your data support your hypotheses? Use evidence to support your answer for each test.

◦ Test One:? ◦ Test Two:?

◦ Test Three:?

6. Which hamsters are the parents of the mystery hamster? Include evidence to prove that they are the correct parents.?

4 0
3 years ago
Which of the following are cells formed by meiosis?
loris [4]

Answer:

C

Explanation:

Meiosis is the creation of sex cells so it isn't A or B. Meiosis makes two different gametes that are not identical so it has to be C

6 0
2 years ago
The characteristics associated with the development of the organs and structures of the body that directly relate to reproductio
alisha [4.7K]

Answer: Primary Sex characters

Explanation:

The primary sexual characters are associated with the growth of sexual organs such as uterus, vagina, penis and other reproductive organs in the human beings.

These organs are present in the body when the child is borne. This is because they grow when the child is inside the womb.

The development and maturation of these organs takes place during the later stages of life.

3 0
3 years ago
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