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liq [111]
3 years ago
11

The cell theory states that

Biology
2 answers:
tankabanditka [31]3 years ago
6 0

Answer:

A) all living things are made of cells.

Explanation:

Cell theory is presented by Matthias Schleiden in 1839. Cell theory states that "all the living organisms are madeup of one or more cells". Cell contains nucleus in the center which controls all activities of the cell. The organelles which are present in the cell are mitochondria, lysosomes, ribosome, cytoplasm, endoplasmic reticulum, golgi bodies and vacuoles. Every organelle has its own function.

Y_Kistochka [10]3 years ago
4 0

Answer:

A

Explanation:

it is A because the cell is the basic unit of life and new cells come from existing cells.

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All of the following are functions of the peripheral nervous system except
mixas84 [53]

The right option is; it interprets signals from the external environment  

The peripheral nervous system (PNS) is made up of all parts of the nervous system, except the brain and spinal cord (parts of the central nervous system). The peripheral nervous system functions as a channel through which neural signals are transferred from and to the central nervous system. Two types of neurons (sensory and motor neurons) functions in the PNS. The motor neurons transfer neural signals from the central nervous system directly to various muscles, glands, and organs (effectors) throughout the body.


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4 years ago
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Which is the best answer to explain how energy levels are affected as energy moves through a food pyramid?
faust18 [17]
C!! i had this question before . energy decreases at top
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3 years ago
About what percent of children between 6 and 11 years of age in the United States are considered overweight
brilliants [131]
<h2>Answer:</h2>

18.4 percent, 18.4%

<h2>Explanation:</h2>

According to a report published by US officials the The predominance of obesity is 13.9 percent between 2- to 5-year-olds, 18.4 percent among 6- to 11-year-olds, and 20.6 percent amidst 12- to 19-year-olds.

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5 0
4 years ago
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The lymphatic system: Group of answer choices has a pumping mechanism to move fluid. is the site of B and T cell clonal deletion
Luden [163]

The lymphatic system includes areas of high concentrations of APCs, T and B cells.

<h3>What is the lymphatic system?</h3>

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The lymphatic system contains high concentration of immune cells.

Therefore, the lymphatic system includes areas of high concentrations of APCs, T and B cells.

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4 0
2 years ago
Assuming DNA is replicated correctly (so there are no mutations),
gavmur [86]

Answer:

None of the choices would lead to all identical gametes.

Explanation:

Gametes are sex cells produced by sexually reproducing organims via a process of cell division called MEIOSIS. Meiosis is a cell division process which produces four (4) daughter cells (gametes), which are genetically different from the parent cell.

The difference in genetical content is as a result of a process unique to only meiosis called CROSSING-OVER OR RECOMBINATION. This process ensures that the genetic content of the gametes are altered. Hence, since gamete formation is done via meiosis, none of the scenarios in the option will lead to all identical gametes.

7 0
3 years ago
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