Answer:
Not every cell in the human body contains DNA bundled in a cell nucleus. Specifically, mature red blood cells and cornified cells in the skin, hair, and nails contain no nucleus. Mature hair cells do not contain any nuclear DNA. ... As part of the maturation process, human red blood cells destroy their cell nuclei.
This means they have no mitochondria, Golgi apparatus, or endoplasmic reticulum. They also lack a membrane-bound nucleus, although they do have genetic material located in a nucleoid region. Prokaryotic cells are surrounded by a plasma membrane, and some types of bacteria have cell walls as well.
Nucleolus. Within the nucleus is a small subspace known as the nucleolus. It is not bound by a membrane, so it is not an organelle. This space forms near the part of DNA with instructions for making ribosomes, the molecules responsible for making proteins.
Explanation:
Short note on : Sustainable harvesting on herbal plants
Answer:
The ecological definition of sustainable harvesting is harvesting that allows population numbers to be maintained or to increase over time. A lagging economy and a lack of alternative construction materials make mangrove harvesting inevitable, and for local people, an economic necessity.
Definición de minerales
English-
Definition of minerals -
a solid inorganic substance of natural occurrence.
Spanish-
Definición de minerales -
una sustancia inorgánica sólida de ocurrencia natural.
Where does the energy from and where does it end up?
Answer:
Our energy supply comes mainly from fossil fuels, with nuclear power and renewable sources rounding out the mix. These sources originate mostly in our local star, the Sun. Electricity falls into its own category because it's an energy carrier and not a primary source.
Which of the following values represents the Simpsons Diversity Index for the insect community?
A. 0.16
B. 0.27
C.0.73
D. 0.84
The Simpsons Diversity Index shows the relative abundance of the individual species in the habitat as well as diversity.
What is the Simpsons Diversity Index?The question is incomplete but I will try to help you as much as I can. The term Simpsons Diversity Index shows the relative abundance of the individual species in the habitat it is also a measure of the degree of diversity in species that are present in a habitat.
The values are not shown henece we may not be able to nuerically obtai the value of the Simpsons Diversity Index. A Simpsons Diversity Index close to 1 indicates a high degree of diversity.
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metabolic water is one way human beings excrete water every day
True or False
Pleaseeeeee i need this
Answer:
the rabbit is getting energy from nuts ,and grass the squirrel is getting energy from nuts ,grasshoppers ,and grass
Answer:
the rabbit is getting it's energy from the grass and the squirrel is getting it from the nuts
Black fur (B) is dominant to white fur. Soft fur (S) is dominant to rough fur. What is probability that the
offspring will have white color and rough fur?
Answer:
A) 1/16
Explanation:
Because both white fur and rough fur are recessive traits, you need all genes shown to also be recessive. If a single trait is dominant, then it will be expressed instead of a recessive gene. Because there is only one square out of sixteen that is all lowercase, the chance of having both recessive traits (White fur and Rough fur) is 1/16.
Giving brainlest to correct answer!!!! :D
Four students described the characteristics of four different states of matter. The table below shows the description given by each student.
Description of States of Matter
Student Description
Timothy Takes the shape of the container
Amelia Charged particles moving independently in large space
Jack Particles arranged in a fixed lattice
Derrick Takes the entire space available
Who described gases?
Timothy
Amelia
Jack
Derrick
Answer:
A.
Explanation:
Liquid particles are close enough but not too tightly packed like solids.
Solid particles are tightly packed so that they can't move.
Gas particles move randomly.
They constantly collide with each other. This type of motion is called Brownian Movement.
Answer:
derrick
Explanation:
it was derrick I tried Amelia and it was wrong
6. Why can't water be used to dissolve the
caffeine found in coffee and tea?
Alcohol is used to extract caffeine
Tea's chief component is cellulose, which is not soluble in water. Caffeine is water soluble, but so are tannins and gallic acid, which have been established during the heating process of tea leaves. The latter two components can be converted to insoluble in water calcium salts.
What is solubility?The maximum amount of a substance that will dissolve in a given amount of solvent at a given temperature is defined as solubility.
Solubility is a property of a specific solute-solvent combination, and the solubilities of different substances vary greatly.
It is one of the critical parameters for achieving the desired drug concentration in systemic circulation for the desired (anticipated) pharmacological response.
Caffeine is more soluble in nonpolar methylene chloride than in water, so it will migrate to the methylene chloride layer (known as the organic layer). Because the organic layer is denser than water, it will be at the bottom.
Thus, water can not be used to dissolve the caffeine found in coffee and tea.
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The smallest particle in an atom is the… and why
1. Electron
2. Neutron
3. Proton
4. None of the above
Answer: None of the above because everyone's knows quarks are the smallest of them all.
Explanation:
Doing a timed thing please hurry
Answer:
its true. its called a chemical reaction.
Explanation:
Answer:
Yes, this is true.
Explanation:
Which type of medication treats a sprained ankle that exhibits pain, redness, and heat?
antihistamine
anti-inflammatory
antibiotic
antiparasitic
Answer:
anti-inflammatory
Explanation:
WILL GIVE BRAINLIEST!!
The cell membrane potential is maintained by the ion channels with movement of ions into and out of the cell. Using the model below, if there was a decrease in protein C, what would be a likely outcome?
The membrane will be maintained by an increase of Na+ ions into the cell.
The membrane potential will be disrupted by a decrease in K+ concentration inside the cell.
The membrane potential will be disrupted by an increase in Na+ concentration inside the cell.
The membrane potential will be maintained by an increase in K+ concentration inside the cell.
Answer:
The loss of protein x function would lead to an increase in intracellular potassium ion ( K+) concentration
Definition of evolution
Answer:
Evolution is the change in the characteristics of a species over several generations and relies on the process of natural selection.
Answer:
the change in the features of the species over generations that makes the organism adaptable to the changes that occur in it's physical environment.
Which of the following is a correct difference between RNA and DNA?
1. RNA is single stranded and DNA is double stranded
2. RNA is double stranded and DNA is single stranded
3. DNA uses Uracil and RNA uses Thymine
4. RNA has deoxyribose and DNA has ribose
Answer:
Chupapi munyano
Explanation:
Answer:
The answer is A. RNA is single stranded and DNA is double stranded
Hope this helps!!
which is the biggest planet in our solar system?what colour is it?
Jupiter
The largest planet in our solar system is Jupiter. Its got shades of white, orange, brown and red
Hope this helped you- have a good day bro cya)
The concentration of salts in blood reamins relatively steady regardless of a person's diet. This situation best illustrates
homeostasis
autotrophy
evolution
life's organizational hierarchy
True or false the nucleus makes the cells DNA
Answer:
true
Explanation:
Answer:
Hope that helps
Explanation:
The nucleus (plural, nuclei) houses the cell's genetic material, or DNA, and is also the site of synthesis for ribosomes, the cellular machines that assemble proteins. Inside the nucleus, chromatin (DNA wrapped around proteins, described further below) is stored in a gel-like substance called nucleoplasm.
Minerals are prone to destruction by elements such as oxygen, heat, and acid.
True or False
Answer:
True
Explanation:
Minerals are prone to destruction by different elements such as oxygen, heat, and acids treatment. The given statement is true. On treatment with these elements, minerals loose their properties.
What are minerals?
Minerals are the naturally occurring inorganic elements or compounds which posses an orderly internal structure and characteristics with the specific chemical composition, crystal form, and properties such as physical properties and chemical properties. Minerals differ from the rocks, which are the naturally occurring solids that are composed of one or more types of minerals.
Minerals show properties which can be lost by the treatment with different elements. Minerals have been found to be prone to destruction by the elements such as oxygen, heat, and acids. Minerals undergo chemical and physical change on treatment with these elements and form different products which show different characteristics than the parent minerals.
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por que es tan importante el agua para nuestro cuerpo? Como podemos incorporarla en nuestro organismo?
Respuesta:
El agua es muy importante para nuestros cuerpos, porque la necesitamos para vivir y ya la correperamos en nuestro organismo.
Explicación:
Sin agua moriremos, y el agua ya está incorporada, somos aproximadamente un 60% de agua.
temperate grasslands
What term is used to describe the state at which a solute moves down its concentration gradient
through the plasma membrane and becomes evenly distributed in the cytosol?
Diffusion is used to describe the condition at which a solute moves down its concentration gradient through the plasma membrane and becomes uniformly distributed in the cytosol.
What is Diffusion?Diffusion is the type of net movement of particles from an area of higher concentration to an area of lower concentration. It is driven by the gradient in Gibbs free energy or chemical potential.
This occurs through the semi-permeable membrane like the plasma membrane. Diffusion of small molecules and macromolecules such as proteins in aqueous solutions plays an important role in microorganisms, plants and animals.
Few examples of Diffusion are:
Perfume is sprayed in one part of the room so that it can spread easily so that we can feel its smell everywhere. A drop of food coloring spread throughout the water in a glass, the whole glass will be colored.Thus, Diffusion is used to describe the condition at which a solute moves down its concentration gradient through the plasma membrane and becomes uniformly distributed in the cytosol.
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a research about carnivorous plants consists of what information?
Answer: about how they grow and diet and how they do it by it I mean what they do for the process of eating it
Explanation:
State the role of the light stage of photosynthesis to the Calvin cycle.
Answer:
In the light-independent reactions or Calvin cycle, the energized electrons from the light-dependent reactions provide the energy to form carbohydrates from carbon dioxide molecules. The light-independent reactions are sometimes called the Calvin cycle because of the cyclical nature of the process.
Explanation:
how often did henrietta lacks cells replicate?
true or false. during aerobic respiration, ATP is destroyed
a __ error occurs when sister chromatids fail to separate properly during meiosis. a)frameshift b)disjunction c)nondisjunction d)genetic
disadvantages of normal floras
What is meant by this statement?
Determine the necessity for a one-to-one correspondence between a specific representation in the mind and a physico-chemical condition in some specific neurons/synapses in the associated brain.