chapter 9 mastery test a, continued
part c fill in the blank with the correct word from the word bank.
word bank
asexual identical meiosis mitosis sexual
21. ________________ reproduction involves two parents.
22. asexual reproduction produces genetically ________________ offspring.
23. a form of asexual reproduction is ________________.
24. ________________ reproduction involves one parent.
25. ________________ is required for sexual reproduction.

part d write the answers to the following questions.
26. why must living organisms reproduce?
________________
27. what is the period of rapid growth that occurs during adolescence called?
________________
28. what is spontaneous generation?
________________
29. what is the name of the chemical that stores information inside cells?
________________
30. what is cell differentiation?
________________

Question

chapter 9 mastery test a, continued
part c fill in the blank with the correct word from the word bank.
word bank
asexual  identical  meiosis  mitosis  sexual
21. ________________ reproduction involves two parents.
22. asexual reproduction produces genetically ________________ offspring.
23. a form of asexual reproduction is ________________.
24. ________________ reproduction involves one parent.
25. ________________ is required for sexual reproduction.

part d write the answers to the following questions.
26. why must living organisms reproduce?
________________
27. what is the period of rapid growth that occurs during adolescence called?
________________
28. what is spontaneous generation?
________________
29. what is the name of the chemical that stores information inside cells?
________________
30. what is cell differentiation?
________________

Accepted Answer

### Part C
#### 21.
# Brief Explanations:
Sexual reproduction needs two parents (one male, one female) to combine genetic material. So the word is "sexual".
# Answer:
sexual

#### 22.
# Brief Explanations:
Asexual reproduction creates offspring with the same genes as the single parent, so they are genetically "identical".
# Answer:
identical

#### 23.
# Brief Explanations:
Mitosis is a cell division process that's part of asexual reproduction (like in binary fission, budding, etc., where cells divide to make identical copies). Meiosis is for sexual reproduction. So the form of asexual reproduction here is "mitosis".
# Answer:
mitosis

#### 24.
# Brief Explanations:
Asexual reproduction only needs one parent (the organism replicates itself, no fusion of gametes). So the word is "asexual".
# Answer:
asexual

#### 25.
# Brief Explanations:
Meiosis is the cell division that produces gametes (sperm and egg) with half the genetic material, which is necessary for sexual reproduction (fusion of gametes from two parents). So the answer is "meiosis".
# Answer:
meiosis

### Part D
#### 26.
# Brief Explanations:
Living organisms reproduce to ensure the survival of their species. If they didn't reproduce, the species would go extinct as individuals die. Also, reproduction helps in passing on genetic information and maintaining the population.
# Answer:
Living organisms must reproduce to ensure the survival of their species (to replace individuals that die, maintain the population, and pass on genetic information).

#### 27.
# Brief Explanations:
The period of rapid growth during adolescence is called a growth spurt. It involves a sudden increase in height and other physical changes as the body prepares for adulthood.
# Answer:
The period of rapid growth during adolescence is called a growth spurt.

#### 28.
# Brief Explanations:
Spontaneous generation is the now - disproven idea that living organisms can arise from non - living matter. For example, it was once thought that maggots could come from rotting meat without any living source (like fly eggs).
# Answer:
Spontaneous generation is the (disproven) idea that living organisms can arise from non - living matter.

#### 29.
# Brief Explanations:
Deoxyribonucleic acid (DNA) is the chemical that stores genetic information inside cells. It contains the instructions for the development, function, growth, and reproduction of all known living organisms and many viruses.
# Answer:
The chemical that stores information inside cells is deoxyribonucleic acid (DNA).

#### 30.
# Brief Explanations:
Cell differentiation is the process by which a less specialized cell (like a stem cell) becomes a more specialized cell with a specific function. For example, in an embryo, stem cells differentiate into cells like nerve cells, muscle cells, or skin cells, each with its own unique structure and function.
# Answer:
Cell differentiation is the process by which a cell becomes specialized in structure and function (a less specialized cell develops into a more specialized cell with a specific role).

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QUESTION IMAGE

Question

Explanation:

Part C

21.

Answer:

22.