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irina1246 [14]
2 years ago
11

Cytoplasm is the clear, gelatinous material found in cells. The cytoplasm takes up a little more than 50 percent of the volume o

f animal cells and a smaller volume in plant cells.
Which of the following is a function of cytoplasm? The could be more than one correct

A determines which substances can enter or leave the cell
B contains proteins that aid in cell movement and cell shape
C supports and holds the cellular organelles
D helps materials move from place to place within the cell
E serves as the site of many cellular processes
Biology
2 answers:
Liula [17]2 years ago
6 0

Answer:

serves as the site of many cellular processes

helps materials move from place to place within the cell

supports and holds the cellular organelles

contains proteins that aid in cell movement and cell shape

Explanation:

just took the quiz on study island

Morgarella [4.7K]2 years ago
3 0

Answer:

D and E both are correct.

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competitive exclusion

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A single strand of DNA helix has the code CGCTAA. Which would be the complementary code on the other strand of the helix?
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The correct answer is option 4, that is, GCGATT.  

Complementary strand refers to either of the two chains, which forms a double helix of DNA, with corresponding positions on the two chains comprising of a pair of complementary bases. It is a section of one nucleic acid, which is bonded to another by an alignment of base pairs.  

In nature, complementarity refers to the base principle of DNA transcription and replication as it is a characteristic shared between the two RNA or DNA sequences, such that when they are arranged antiparallel to each other, the nucleotide bases at each position in the sequences will be complementary.  


7 0
3 years ago
Read 2 more answers
Record the stages of meiosis in eukaryotic cells realizing that there are two cell divisions involved, each having their particu
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1.1
Meiosis I
The first meiotic division: diploid → haploid
    Prophase I: Chromosomes condense, nuclear membrane dissolves, homologous chromosomes join and occurs crossing over.
    Metaphase-I: the homologous chromosomes align in the middle of the cell. Spindle fibers from the centrosomes connect to the chromosomes.
    Anaphase -I: Spindle fibers contract and split the homologous chromosomes, moving them to opposite poles of the cell.
    Telophase -I: Chromosomes decondense; cell divides to form two haploid cells.

1.2 Meiosis II
The second division: separates sister chromatids (these chromatids may not be identical due to crossing over in prophase I)

     Prophase II: Chromosomes condense, nuclear membrane dissolves, centrosomes move to opposite poles (perpendicular to before)
    Metaphase-II:  the chromosomes align in the middle of the cell. Spindle fibers from the centrosomes connect to the chromosomes (at the centromere)
    Anaphase-II: Spindle fibers contract and split the sister chromatids, and moves them to opposite poles of the cell.
    Telophase-II: Chromosomes decondense,cells divides again to form another 2 haploid daughter cells. Final: 4 new cells.


2. The differences:
Mitosis:
- has 1 division per cycle
- one cell produces 2 new cells
- the genetic information in the mother-cell and the daughter-cells are the same. ( the number of chromosomes is also the same)
- it occurs in somatic cells
Meiosis:
- two divisions per cycle
- one cell when divides produces 4 new cells
- the new cells have different genetic information. mixes the genetic material from the parent cells
- the number of chromosomes of the daughter cells is half of the mother's.

3. Prokaryotic organisms don't divide through mitosis, they use a different process called binary fission. Only eukaryotic organisms, or those whose cells have a defined nuclei, undergo mitosis. Bacteria, for example, are prokaryotic organisms that use binary fission.

4.
 It can't occur. Cross over is the exchange of DNA between homologous chromosomes.  That will result in recombinant chromosomes during sexual reproduction. It can't occur on different chromosomes because they don't code for the same genes.

5. There are a lot of different theories about that, but it's mostly believed that meiosis must evolve before sexual reproduction. That's because The cell replicates their information first and then divides. Plus the cell does that even though it didn't recombine DNA with another organism (sexual reproduction).

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3 years ago
Because solid objects havevery little energy
vagabundo [1.1K]
The particles are locked in space. they are compactly arranged.
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Through what process do cells become specialized so they can perform specific functions within organisms? A. mitosis B. fertiliz
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Answer:

The correct answer is C. differentiation.

Explanation:

Cell differentiation is a process via which generic embryonic cells are transformed into specialized cells through a process of gene expression. Certain signals from inside and outside our body initiates gene expression.

Cell differentiation occurs at various stages of development, which causes the size and the shape of the cell to change dramatically.

Importance of cell differentiation:

  • Plays vital role in embryonic development
  • Helps in developing organisms throughout their life

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3 years ago
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