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Solnce55 [7]
3 years ago
11

When did cell theory become an accepted part of biology?

Biology
2 answers:
likoan [24]3 years ago
8 0
LOAF OF MEAT.........
Black_prince [1.1K]3 years ago
4 0
<span>The cell theory become an accepted part of biology in the 1</span>850s.
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What important function could be diminished if the cilia on ependymal cells were absent?
Crank

Answer:

Ependymal cell present in the central nervous system has an important role in production and control of cerebrospinal fluid (CSF). This ciliated cell acts as sensory for coordination to cellular signaling in the production and control of CSF.

Explanation:

6 0
3 years ago
plzzzzz help ..........How do the processes of conduction, convection, and radiation help distribute energy on Earth?
kodGreya [7K]

ENERGY TRANSFER IN THE ATMOSPHERE:

Atmosphere surrounds the earth made up of different layers of gases such as Argon, Oxygen, Nitrogen, Exophere, Thermosphere, Mesophere, Stratosphere, Toposphere

The energy that drives the climate system comes from the Sun. When the Sun's energy reaches the Earth it is partially absorbed in different parts of the climate system. The absorbed energy is converted back to heat, which causes the Earth to warm up and makes it habitable. Solar radiation absorption is uneven in both space and time and this gives rise to the intricate pattern and seasonal variation of our climate. To understand the complex patterns of Earth's radiative heating we begin by exploring the relationship between Earth and the Sun throughout the year, learn about the physical laws governing radiative heat transfer, develop the concept of radiative balance, and explore the implications of all these for the Earth as a whole. We examine the relationship between solar radiation and the Earth's temperature, and study the role of the atmosphere and its constituents in that interaction, to develop an understanding of the topics such as the "seasonal cycle" and the "greenhouse effect".


The Sun and its energy.

The Sun is the star located at the center of our planetary system. It is composed mainly of hydrogen and helium. In the Sun's interior, a thermonuclear fusion reaction converts the hydrogen into helium releasing huge amounts of energy. The energy created by the fusion reaction is converted into thermal energy (heat) and raises the temperature of the Sun to levels that are about twenty times larger that of the Earth's surface. The solar heat energy travels through space in the form of electromagnetic waves enabling the transfer of heat through a process known as radiation.


Solar radiation occurs over a wide range of wavelengths. However, the energy of solar radiation is not divided evenly over all wavelengths but is rather sharply centered on the wavelength band of 0.2-2 micrometers (μm=one millionth of a meter).


The physics of radiative heat transfer.

Before proceeding to investigate the effect of solar radiation on Earth we should take a moment to review the physical laws governing the transfer of energy through radiation. In particular we should understand the following points:


The radiative heat transfer process is independent of the presence of matter. It can move heat even through empty space.

All bodies emit radiation and the wavelength (or frequency) and energy characteristics (or spectrum) of that radiation are determined solely by the body's temperature.

The energy flux drops as the square of distance from the radiating body.

Radiation goes through a transformation when it encounters other objects (solid, gas or liquid). That transformation depends on the physical properties of that object and it is through this transformation that radiation can transfer heat from the emitting body to the other objects.


Radiation transfer from Sun to Earth.

Properties of Solar radiation: The Sun is located at the center of our Solar System, at a distance of about 150 x 106 kilometers from Earth. With a surface temperature of 5780 K (degrees Kelvin = degrees C + 273.15), the energy flux at the surface of the Sun is approximately 63 x 106 W/m2. This radiative flux maximizes at a wavelength of about 0.5 μm.

Solar radiation on Earth: As the Sun's energy spreads through space its spectral characteristics do not change because space contains almost no interfering matter. However the energy flux drops monotonically as the square of the distance from the Sun. Thus, when the radiation reaches the outer limit of the Earth's atmosphere, several hundred kilometers over the Earth's surface, the radiative flux is approximately 1360 W/m2.


4 0
3 years ago
Which cell structure are seen in all cell types
Lisa [10]
Cytoplasm<span>, the rest of the material of the cell within the </span>plasma membrane<span>, excluding the nucleoid region or </span>nucleus<span>, that consists of a fluid portion called the cytosol and the organelles and other particulates suspended in it. Ribosomes, the organelles on which protein synthesis takes place.

Hope this helps !!!^_~!!!</span>
3 0
3 years ago
What component of the cell wall helps in growth and development, as well as keeping it strong to defend itself?
Ratling [72]

Answer: Option C.

Cellulose.

Explanation:

Cellulose is a polysaccharide which is made up of glucose and it is an important component in plant cell wall. It give strength and rigidity to the cell wall. Cellulose make the cell walls strong. This play a regulatory role in tissues growth and provide strength. The cellulose is only found in cell wall and it's protect the cell wall.

8 0
3 years ago
In what way are all living organisms on Earth similar? A. They are all made from a code based on unsaturated fatty acids. B. The
satela [25.4K]
C. They are all assemblers from a nucleus acid code
6 0
3 years ago
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