<span>Erythrocytes, neurons, skeletal cells, and columnar cells are examples of: specialized cells.
cell, in biology, the unit of structure and function of which all plants and animals are composed. The cell is the smallest unit in the living organism that is capable of integrating the essential life processes. There are many unicellular organisms, e.g., bacteria
and protozoans
, in which the single cell performs all life functions. In higher organisms, a division of labor has evolved in which groups of cells have differentiated into specialized tissues
, which in turn are grouped into organs and organ systems.
Cells can be separated into two major groups—prokaryotes, cells whose DNA is not segregated within a well-defined nucleus surrounded by a membranous nuclear envelope, and eukaryotes
, those with a membrane-enveloped nucleus. The cyanobacteria and bacteria (kingdom Monera
) are prokaryotes. They are smaller in size and simpler in internal structure than eukaryotes and are believed to have evolved much earlier (see evolution
). All organisms other than cyanobacteria and bacteria consist of one or more eukaryotic cells.
All cells share a number of common properties; they store information in genes
made of DNA (see nucleic acid
); they use proteins
as their main structural material; they synthesize proteins in the cell's ribosomes using the information encoded in the DNA and mobilized by means of RNA; they use adenosine triphosphate.
as the means of transferring energy for the cell's internal processes; and they are enclosed by a cell membrane, composed of proteins and a double layer of lipid
molecules, that controls the flow of materials into and out of the cell.</span>
The correct characteristics of the given objects are as follows:
A: Jupiter - electromagnet (The electromagnetic waves around Jupiter are much stronger around two of its moons)
B: Refrigerator magnet - permanent magnet (The magnets that we affix to our refrigerator are permanent magnets)
C: Mars - Not magnetic ( Mars has no inner dynamo to create a major global magnetic field.)
A positively charged particle in an atom is a Proton
Answer:
Most likely B
Explanation:
A - Carrying capacity is the amount of a species that can live in a given area with the given resources, weather does not apply.
B - Limiting factors are things such as food, mates, and competition with other organisms for resources, which can limit the maximum population. Temperature can be applied here, it is the best option.
C - Climax community is when an area's ecosystem is stable, so the term makes no sense used here.
D - To be honest I have no clue what this is. But making an assumption from the term, the winter being "unusually cold" does not make it a "pattern". So I don't think it's this option. I could be wrong, but I assume this is not the right choice.
Answer:
Carbohydrates are biological molecules made of carbon, hydrogen, and oxygen in a ratio of roughly one carbon atom.
Explanation:
( Cstart text, C, end text) to one water molecule ( H 2 O \text H_2\text O H2Ostart text, H, end text, start subscript, 2, end subscript, start text, O, end text).
