How are epithelial cells arrangedclosely packed
spaced far apart
in a flexible structure
none of the above

Answers

Answer 1

Answer: closely packed is like a sheet layer

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plant and animal development share a number of features, but differ in major ways as well. which of the following best summarizes the similarities between the two forms of development?

Answers

Both plant and animal development is seeded in the perspective that a cell divides itself to form a tissue and tissues grouped will become an organ and the organism itself. The cell hierarchial model is followed in the development in both of these diverse however seemingly similar organisms.

Explain the interaction between proteins and nucleic acids.

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Answer:

Image result for Explain the interaction between proteins and nucleic acids.

The binding of protein to DNA controls the structure of genomic DNA (chromatin), RNA transcription, and DNA repair mechanisms. The following example illustrates how Invitrogen Dynabeads magnetic beads may be used to recover proteins that bind to nucleic acids.

Explanation:

Which is a part of the cell theory? cells come from pre-existing cells cells have a nucleus organisms with one cell must be seen with a microscope organisms must have more than one cell to live

Answers

A part of the cell theory is cells come from pre-existing cells. The correct option is A.

What is the cell theory?

The cell theory is the conclusion of many scientists. There are three postulates of the cell theory. They are: all organisms are made up of cells. New cells are made up of old cells, and the cell is the basic structural and functional unit of life.

The cell is the smallest and basic unit of life. All functions of the body are performed by cells. It contains a cell organelle that has different functions and structures.

A nucleus is present in the cell and microscopic organs must have a single cell, they are not a part of cell theory, this is more related to the organism, not cells.

Thus, the correct option is A. cells come from pre-existing cells.

To learn more about the cell theory, refer to the link:

brainly.com/question/1468725

#SPJ6

Answer:

Cells come from pre-existing cells

Explanation:

During meiosis, homologous sets of four chromatids are lined up along the cell's equator, attached to spindle fibers. Which of the following processes will happen next?

Answers

Answer:

The answer is "Anaphase I".

It depends if you are in Metaphase I which I am assuming you are. So here, homologous chromosomes pair up and line up independently at the metaphase plate (equator) and independent assortment/random alignment occurs which leads to genetic variation

Organisms that break down dead plants and animals and return nutrients to the soil are called?

Answers

These organisms are called Decomposers* They eat dead plants and animals and leave nutrients in the soil.
For exmaple, worms:P~~

A DNA strand has the codon AAT. According to the chart, the corresponding messenger RNA codes for which amino acid?

Answers

Answer:

Asparagine (symbol Asn)

Explanation:

In a gene, groups of three nucleotides (such as AAT) form codons that are read during translation, for the synthesis of proteins. The way codons are read can be found in a genetic code (attached here).

Before that, the DNA seuqences are transcripted to RNA sequences in order to be read and translated in the ribosome.

AAT (DNA sequence) will be transformed to AAU during the transcription of DNA. This is because during the transciption process all thymines (T) are replaced by Uracils (U).

In the genetic code you can see that AAU is read as Asparagine.

Because Thymine is "replaced" with Uracil, the corresponding RNA Code for AAT would be UUA.

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A researcher wants to test how diets A and B affect the weight loss of rabbits. She has 20 rabbits to use, but all of the rabbits are different sizes, which might affect how much weight they lose. The researcher decides to group the four smallest rabbits in one group, the next four smallest rabbits in another group, etc., until the final group has the four largest rabbits. Then, from each group she randomly selects two rabbits to have diet A, and the remaining rabbits in the groups have diet B.Select all that apply:A. This is an example of a block design.B. This is an example of a completely randomized experimentC. This is an example of a matched pairs experiment.D. The treatments are diets A and B.E. The treatment is how much weight a rabbit loses.F. The experimental units are the 20 rabbits.G. The experimental units are diets A and B