Answer:
Eukaryotic cells are larger than prokaryotic cells and have a “true” nucleus, membrane-bound organelles, and rod-shaped chromosomes. The nucleus houses the cell's DNA and directs the synthesis of proteins and ribosomes.
Explanation:
PLEASE HELP!
1. How does a clock and its internal and intricate mechanical parts make up a system(Explain)
2. Is it a living or nonliving system? (Explain)
3. How may it support a living system? (Explain)
4. Therefore what is an good example of a definition of a system?
Answer:
1. A clock with internal mechanical parts comprises a system because it is a combination of various parts that a heterogeneous in nature and function working together to achieve one end - indicating the time accurately.
Some mechanical clocks comprise of at least 10 parts namely:
Gear train: This component alone is a sub-system that comprises of at least 8 parts. These parts are broadly classified into wheels, pinions, and barrels.Main SpringPalletEscapement Escapement WheelBarrell Barrell WheelBalance Spring etc2. A clock is a non-living system.
Living systems have certain characteristics. Some of them are:
Stimuli: Response to the environmentGrowth and development: The are able to increase in size and dimensionsHomeostasis: this is the capability of self-regulation regardless of external conditions such as temperature and pressure. etc3. A cannot support a living system. It can however help a human being (which is essentially a combination of various systems) to tell the time.
4. a system is a combination of heterogeneous parts that work in unison to form a whole complex entity that can perform one or more functions.
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which substance compose the backbone of DNA
Answer:
phosphate and deoxyribose
Explanation:
Answer:
Phosphates and sugars
Explanation:
The football team has a total of 25 jerseys . There are 5 mediums-sized jerseys . What percent of the Jerseys are médium-sized Jersey?
Answer:
20% or 0.2
Explanation:
if u divide 5 by 25, u get 0.2, which in decimal form is 20%
When testing tonicity of red blood cells, if the solution became opaque after adding blood cells, you could assume
Answer:
The solution was hypertonic and that the cells had burst.
Explanation:
When testing tonicity of red blood cells, if the solution became transparent after adding blood cells, you could assume the solution was hypotonic and the cells had burst.
Tonicity of the red blood cells is the degree or measure of the red blood cells ability to change the volume of a cell by alternating water amount.From the above we can therefore say that the answer When testing tonicity of red blood cells, if the solution became transparent after adding blood cells, you could assume the solution was hypotonic and the cells had burst is correct
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Light behaves in specific ways. It can be reflected, refracted, or absorbed, and under certain conditions, run into different kinds of interference. Which explanation best describes why light is refracted as it enters water?
A. The light bends when it enters water due to its reflection.
B. The speed of light remains the same as it moves from air to water, causing the light to reflect.
C. The speed of light increases when it enters a different medium, but it doesn't bend.
D. The speed of light changes as it moves from air to water, causing the light to bend.
Answer:
D
Explanation:
Refraction is generally defined as the change in the direction of a wave as it travels from one medium to another. Light is a form of wave and light refraction is caused by a change in the speed of light as it moves from air to water, causing the light to bend in the process. The medium of travelling has to be transparent.
The change in the speed and direction is due to the variability in the refractive index of media. Light travels faster as it moves from a medium of higher refractive index to a medium of lower refractive index and vice versa.
The correct option is D.
Why did people in England feel that it was reasonable that America paid more taxes?
Answer:
See below
Explanation:
The people in England felt that it was acceptable to make to colonists pay taxes because they felt that they still owned the colonists and could push them around as they wished. They also needed the money to pay for war debt. It was also a reaction to the protests that the Americans were performing.
How the coin flip relates to the probability of inheriting genetic condition?
Answer:
A coin represents a diploid, heterozygous cell with its heads and tails sides. The act of tossing the coin to land on heads or tails, provides an apt representation of the segregation of alleles during meiosis in the formation of gametes.
or i guess you could just say its all by chance ;P
peace :)
Answer:
It is very similar to the way traits are inherited in nature, as both combinations occur by chance. Though, in the coin toss, there are only 2 possible alleles whereas in nature there may be more complicated combinations of alleles for traits.
Explanation:
in which two steps of cellular respiration is the co2 produced
Answer:The only difference between a molecule of a compound and a molecule of an element is that in a molecule of an element, all the atoms are the same. For example, in a molecule of water (a compound), there is one oxygen atom and two hydrogen atoms. But in a molecule of oxygen (an element), both of the atoms are oxygen.
Explanation:hope this helps
during photosynthesis, what is the source of the carbon i the sugar that is created
Answer:
Plants get the carbon from the air that humans exhale. They breath it in and use it for photosynthesis.
Explanation:
Took biology last year.
During photosynthesis, what is the source of the carbon is the sugar that is created is carbon dioxide in the air.
Photosynthesis is the process by which plants use sunlight, water, and carbon dioxide to create oxygen and energy in the form of sugar.Carbon dioxide serves as the source of carbon, and it enters the photosynthetic process in a series of reactions called the carbon-fixation reactions (also known as the dark reactions).Stages of photosynthesis:
(i) Absorption of light energy by chlorophyll.
(ii) Conversion of light energy to chemical energy and splitting of water molecules into hydrogen and oxygen.
(iii) Reduction of carbon dioxide to carbohydrates.
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Use your own observations and real-life experiences about your brain
Answer:
our life experience changes our brain so if u fall off a bike ur brain will train u and send signals to ur body ur brain also knows when its forgetting something but doesn't know what its forgetting
Explanation:
Which of these is describing a Eutrophic Lake?
Mucky Water
Cold Water
Low Biodiversity
Rocky Bottomed
Plz answer I need help thank you
Answer:
Mucky water and rocky bottom
Answer:
mucy water ..........
three sentences about the role termites play in modifying the natural proses of water carbon or nitrogen cycle
Answer:
-help to store water in the soil (by increasing infiltration) rather than evaporating (enabling the plants survive long periods of drought)
-mix inorganic and organic compounds in the soil (and thus it can better resist the process of erosion)
-termite’s feces help to prevent erosion
Explanation:
Decomposers break down complex organic matter into basic compounds containing nitrogen, phosphorus, and calcium, generating water (H2O) and carbon dioxide (CO2) during this process. Termites are critical in an ecosystem because they are decomposers, i.e., they are recyclers that break down organic material into nutrient-rich soil. For example, termites digest the cellulose from dead plants (due to the presence of specific bacteria in their digestive tract), thus allowing the carbon cycle.
Someone please help ! Will give brainliest !
tbh I'm pretty sure this is right
What conclusion is best supported by the selection above ? NUMBER 2
Answer:
Arginine and Lysine play same role in membrane proteins.
Explanation:
The scientist have tested Lysine and Arginine to get information about their properties. The test lead to conclusion that both are amino acids which are high in aqueous values which lead to high electrostatic interaction. These amino acids play important role in membrane proteins.
Whats the flow of matter in DESSERT food web?? HELP
The Sahara desert food chain begins with the plants. There are many kinds of plants in the desert. They are the Date Palms, Cacti, Thorn Acacia, Creosote Bush, Sage Brush, Desert Milkweed, Desert Willow, and Desert Tobacco. The plants are producers as they are the source of food for many herbivores.
The hydrogen used to produce ATP in the light reactions of photosynthesis comes from ___.
a. Splitting water
b. Carbon fixation
c. Movement of hydrogen ions through the membrane
d. The burning of sugar molecules
Answer:
c.
Explanation:
How do scientists say the melting ice can contribute to disease occurrence? Also example
Answer:
In the melting of icebergs, icebergs could potentially contain long-dormant bacteria and viruses. Those viruses trapped in ice and permafrost for centuries, can be reactivated. That means melting those ice could potentially open a Pandora's box of diseases. Including some that have caused global epidemics in the distant past.
Example: babesiosis
As of regular ice. The freezing of bacteria in water isn't just an old practice and ice from unclean sources could also contain disease, when melted and ingested or touched this ice as well could transmit disease not so long-dormant, however still unpleasant.
Example: AIDS
summer squash purchased at your local grocery store would be biologically classified as a
Answer:
considered a vegetable.
Explanation:
How is cellular respiration
connected to our muscular
system?
Answer:
Cellular respiration is a key role in returning the muscles to normal after exercise, converting the excess pyruvate into ATP and regenerating the stores of ATP, phosphocreatine, and glycogen in the muscle that are required for more rapid contractions.
Hope that helps!
In physics, what is a black body?
Answer:
Blackbody, in physics, a surface that absorbs all radiant energy falling on it. The term arises because incident visible light will be absorbed rather than reflected, and therefore the surface will appear black. The concept of such a perfect absorber of energy is extremely useful in the study of radiation phenomena.
The process by which animals use oxygen to convert food to energy is called
Answer:
Respiration
Explanation:
Respiration is the process by which animals use O2 to get energy from food. So plants take in CO2 from the air and produce O2, and animals take in O2 from the air and produce CO2
Match the terms on the left to the correct definitions *
5 points
Part of a A molecule
chromosome that makes
that is passed
up a
from parent to component of
offspring a ribosome
A biomolecule
that is made
of one or more
amino acids
and that
performs a
specific
function
A nucleotide Guanine,
polymer that cytosine,
uses uracil,
deoxyribose adenine, or
sugar thymine
protein
gene
DNA
RNA
Nitrogen
base
554Answer:544
gfnknmfdjkfrgfnfewnm f,m dsmnfdl;skgfkldskmlglkmrfvdsf
redewn d dnlsfnmddmffmf,dsfdfExplanation:er44dfdsfdsf
fdnjifljdkfdjkldfkldfkjlfdfdskfdknflkndlkfldnsfn
Largest layer of earth that makes up most of the earths mass. A:crust B:mantle. C:outer core. B:inner core
Answer:
Mantle is the answer
Explanation:
The Earth can be divided into four main layers: the solid crust on the outside, the mantle, the outer core and the inner core. Out of them, the mantle is the thickest layer, while the crust is the thinnest layer.
I am taking the same class rn!!! whos your teacher??
Answer:
b-MANTLE
Explanation:
The mantle is the mostly-solid bulk of Earth's interior. The mantle is about 2,900 kilometers (1,802 miles) thick, and makes up a whopping 84% of Earth's total volume.
This explains how one type of rock changes into another type of rock
A - the mineral cycle
B - metamorphism
C - the rock cycle
Answer:
B
Explanation:
The diagram below shows the exchange of carbon dioxide (CO2) and oxygen (O2) between a cell and the blood flowing through a capillary.
In this diagram, the molecules of CO2 (represented by x’s) are moving from an area of--
Answer:
From an area of higher concentration to an area of lower concentration.
Explanation:
The molecules of CO2 are moving from an area of higher concentration to an area of lower concentration. Carbondioxide is produced as waste product in the cell during the process of respiration. This carbondioxide gas is loaded in blood cells because in the cell, concentration of carbondioxide gas is higher while on the other hand the concentration of carbondioxide is lower in the blood cells. This carbondioxide gas exchange in the lungs with oxygen which is required in the process of respiration for the production of energy in the form of ATP molecules. So from the conclusion we can say that CO2 moves from an area of higher concentration to lower concentration.
PLEASE HELP I HAS 5 MINUTES
Answer:
its ethier a or c
Explanation:
Impetigo.
Explanation....
It cannot be acne since this occurs when you are more in the teens and is not yellow, eliminate the last one.
It cannot be ringworm because they are worms and not apperanced by yellow crust, eliminate the second one.
It cannot be eczema since this is red not yellow, eliminate the first one.
Impetigo appears as yellow crust. Therefore, your answer is the third one, Impetigo.
PLEASE HELPP!!!!
Describe the water cycle in a brief paragraph. Use terms that you know are associated with the water cycle.
Answer:
The water cycle or hydrologic is a continuous cycle where water evaporates, travels into the air and becomes part of a cloud, falls down to earth as precipitation, and then evaporates again. ... As clouds move up and over mountains, the water vapor condenses to form precipitation and freezes.
5.2 learning the key term answer
An aquarium with a glass lid is an example of an isolated system.
true
false
Answer:
The answer is false!
Explanation:
I took the K12 science quiz. I hope this helps! Have a blessed day! :)
The statement "An aquarium with a glass lid is an example of an isolated system" is false as light, air, and heat can transfer through the glass lid.
What is an aquarium?An aquarium is an artificial place that is made for putting fish and other water animals in houses buildings and other places. Aquariums are made up of glass so can we, so we can see the fish's aquarium also have oxygen pumps the water also changed in the aquarium from time to time and. The aquarium is kind of decorative.
Aquariums are made up of glass, and they are open from the top so that fish can get air.
An aquarium is not an isolated system as light year and heat can transfer through the top and fishes are living organisms that need an open system to breathe and live.
Therefore, the statement is false.
To learn more about aquariums, refer to the below link:
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Man made sources of green House Gases
A
Factory emmissions
B
all of them
C
Chlorofloro Carbons
D
Automobile emmissions
Answer: C. Chlorofluoro Carbons.