Which level of organization is characterized by a group of cells that work together to perform a common function?
O organ
tissue
organ system
O organism
snsnsnsn
Answer:
Organ Tissue
Explanation:
A group of cells that work together to perform a common function is called a organ tissue.
Hope this helps you!
Answer:
tissue
Explanation:
What is the function of the valves within the heart and veins? to ensure the production of blood within the body to ensure coordination of the heart cells for pumping blood to ensure that foreign materials do not enter the heart to ensure that blood flows in one direction only
Answer:
to ensure that blood flows in one direction only
Explanation:
Here, we want to select which of the options is the function of valves within hearts and veins.
Basically, valves serve as control mechanisms in the circulatory system.
By control, it means that they actually dictate the direction in which the blood will flow.
Hence, valves ensures that blood types which is supposed to flow from the heart does not flow towards it and blood types that are meant to flow towards it does not flow away from it
An example of this can be seen in the case of oxygenated and deoxygenated blood.
Both have different flow mechanisms which are controlled by the actions of the valves
Answer:
D. To ensure that blood flows in only one direction
Explanation:
Active transport allows substances in and out of the cell to
Active transport allows substances in and out of the cell to lower concentration from higer concentration with the help of energy.
Keep in mind:In cellular biology, active transport is the movement of molecules across a cell membrane from a region of lower concentration to a region of higher concentration—against the concentration gradient. Active transport requires cellular energy to achieve this movementTrue or False - The more we use antibiotics, the more bacteria have an
opportunity to evolve to be resistant to them.
True
False
Submit
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Answer:
Using antibiotics when they are not needed contributes to antibiotic resistance and unwanted side effects. The more antibiotics are used, the more resistant the bacteria can become because sensitive bacteria are killed, but stronger germs resist the treatment and grow and multiply.
Explanation:
Which of these biomes tends to have the coldest temperatures
Answer:
tundra
The tundra is the coldest of the biomes. It also receives low amounts of precipitation, making the tundra similar to a desert. Tundra is found in the regions just below the ice caps of the Arctic, extending across North America, to Europe, and Siberia in Asia.
Explanation:
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Do homologous structures have the same function in different organisms?
Answer:
The term “homologous structures” refers specifically to similar structures found in different species that have a common ancestry or developmental origin. Note that homologous structures don’t have to perform the same function in a species, the only requirement is that they are similar in form and exist in species with common ancestry.
Explanation:
What is the similarity between light independent and light dependent
Answer:
Light Dependent reactions is when energy from the sunlight gets absorbed by chlorophyll and then converted into a chemical.
Light Independent chemical energy is harvested during light-dependent reactions and it moves the assembly of sugar molecules from carbon dioxide.
5. A region, known as the Ring of Fire, follows the border of the Pacific Ocean basin. Why do so
many earthquakes and volcanoes occur in this region?
A. Numerous tectonic plate boundaries are located along the edges of this region.
B. Transform boundaries completely surround this region of the Pacific Ocean.
C. Only powerful convergent plates are located along the Ring of Fire,
D. Two plates are diverging in the center of the Pacific Ocean
Answer:
C
Explanation:
i took that test a long time ago
Which organelle contains biomolecules that are made of large and complex units called nucleotides?
Answer:
DNA and RNA are made up of monomers known as nucleotides. The nucleotides combine with each other to form a polynucleotide, DNA or RNA. Each nucleotide is made up of three components: a nitrogenous base, a pentose (five-carbon) sugar, and a phosphate group
Explanation:
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There are thousands of free-floating _______ in the nucleoplasm that can be attached to the exposed bases on each side of the DNA. To do this an enzyme will be needed.
Answer:
It's approximately 90 years
Explanation:
A dehydrated person enters the hospital. The traditional procedure to treat a dehydrated patient is to add saline (salt) solution to their blood. Saline solution is a mixture of salt (solute) and water. However, the nurse accidentally gives the patient distilled (pure) water. What will happen to the person's cells?
Answer:
The cells will taking-in water and hemolyse
Explanation:
If water is given to dehydrated patients instead of a saline solution, the cells of the patients will take-in water from the surrounding solution by osmosis because distilled water is hypotonic to the red blood cells. The cytosol has a higher concentration of solutes than distilled water. When this happens, the cells become turgid and burst out its contents, a condition known as hemolysis.
In what organelle do molecules move from the ER to the Golgi bodies ?
The cell organelle through which molecules move from the endoplasmic reticulum (ER) to the Golgi bodies is: Vesicles.
A cell refers to the fundamental (basic) functional and smallest unit of life found in every living organisms.
Cell organelles can be defined as the organs (workers) that are responsible for the performance of various tasks or functions in the body of a living organism such as an animal, plant, and humans, especially for the survival of the organism.
Some examples of cell organelles found in the body of living organisms include the following:
Mitochondria.Nucleus. Cytoplasm.Cell membrane.Chromosome.Golgi apparatus (bodies).Endoplasmic reticulum (ER).Vesicles.A vesicle is a cell organelle that is saddled with the responsibility of creating a pathway or serving as a medium for molecules (proteins) to be transported from the endoplasmic reticulum (ER) to the Golgi bodies.
In conclusion, a vesicle is considered to be a storage organelle.
Read more: https://brainly.com/question/19559847
Nucleus controls the cells function by making proteins
O True
O False
false, while the nucleus does control the cell the ribosomes make the proteins
Two theories relating to the cell are the _____ theory and the ______ theory.
Sir Isaac Newton explained.. Group of answer choices That planets move in ellipses. Why the gravitational force continuously pulls each planet towards the Sun The theory of theories. Planets orbit faster the closer they are to the Sun.
Answer:
Why the gravitational force continuously pulls each planet towards the Sun
Explanation:
According to Sir Isaac Newton's first law of motion, there is a gravitational force that acts on two objects or planets which always pull it towards the center of the orbit or sun . For example if there is a force that pull the Earth toward the sun, there must be equal and opposite force that also pull the sun towards the Earth.
It is represented by a formular.
F= GMm/r^2
Where does the energy come from for many ecosystems
Are all stars exactly like the sun
Answer:
No
Explanation:
There are different stages in a star's life depending on it's mass. There might be stars similar to the Sun, but stars are not all exactly the same.
How are the Sun, Moon and Earth aligned during a
full moon?
Answer:
i do not now
Explanation:
Groups of specialized cells that work together are called:
organ systems
tissues
muscles
tendons
Groups of cells working together form tissues, groups of tissues working together form organs, organs working together form organ systems, organ systems cooperating and working together form organisms.
11) Pb(NO3)2
#of molecules:
# of elements:
Name of element:
# of atoms:
Total # of atoms:
The #3 is a
(coefficient or subscript)
Answer:
number of molecules 2
number of element 3
name of elements
pb=lead
N=nitrogen
o=oxygen
Large molecules enter the cell by endocytosis and exit the cell by exocytosis. Structure “A” facilitates, or helps, the diffusion of glucose across the membrane. In facilitated diffusion, molecules that cannot directly diffuse across the membrane oass through structure “A”.
what is true about structure A?
A) Facilitated diffusion does not require any use of the cell’s energy.
B) osmosis through structure “A” requires the use of the cell's energy
C) Active transport through structure “A” does not require use of the cell’s energy.
D) Diffusion through structure “A” requires energy.
Answer:
A)Facilitated diffusion does not require any use of the cell’s energy.
Explanation:
A certain type of bacteriophage replicated by incorporating its own genetic material into the host genome where it passed on to future generation over time. This type of viral reproduction is known as he
Answer:
photosynthesis maybe?
Explanation:
which characteristics is unique to animals?
heterotroph
photosynthesis
autotroph
multicellular eukaryote
Describe organisms that are able to produce enough energy for life processes with no oxygen available.
Answer:
Plants
Explanation:
Plants turn carbon into oxygen....
Organisms that are able to produce enough energy for life processes with no oxygen available are - prokaryotic organisms such as some bacteria and archaea and eukaryotic organisms such as yeast and lactic acid formation in mammals.
Oxygen is essential for most of the time in the production of energy However, many organisms carry out metabolism without oxygen, or can switch from aerobic to anaerobic cell respiration when oxygen is absent.
Fermentation is a process that uses an organic molecule to regenerate NAD+ from NADHAnaerobic cellular respiration is a process that uses either inorganic molecules or organic molecules to accept electrons.prokaryotes use anaerobic respiration. For example, the group of archaea called methanogens reduces carbon dioxide to methane to oxidize NADH.Thus, the correct answer is - prokaryotic organisms and some eukaryotic organisms.
Learn more about anaerobic respiration:
https://brainly.com/question/12605249
1. Earth's outer core is best inferred to be
Answer:
liquid, with an average density of approximately 11 g/cm3
Explanation:
what are the chemicals represented by the X?
Get it?
1. Explain the factors that
have contributed to an
increase in the survival rate
of the human population.
How have these factors
contributed to the
homeostasis of the
population within its
environment? Explain.
Answer:
I am answering just from my knowledge
The factors that have contributed to an increase in human population are two main e.g Increase in birth rate and decrease in death rate.
Increase in birth rate is due to more food production and food supply.Massive increase in agricultural productivity.More life expectancy etc.There is a decrease in death rate beacauseof eradication of diseases,better hygiene,cleanliness and development in medical facilities. Similarly, populations of organisms respond to external factors for a collective benefit. All populations must have an adequate amount of food, water, shelter, and space. ... Biotic factors like predation and competition for food are also limiting factors.the technologies used to achieve this transformation have caused unprecedented changes to Earth’s environment, altering ecosystems to the point where some may be in danger of collapse. The depletion of the ozone layer, erosion due to acid rain, and damage from global climate change are caused by human activities. The ultimate effect of these changes on our carrying capacity is unknown. As some point out, it is likely that the negative effects of increasing carrying capacity will outweigh the positive ones—the world’s carrying capacity for human beings might actually decrease.good luck
The factors that have contributed to an increase in the survival rate of the human population are natality, mortality, immigration, and pathogens presence.
What do you mean by Survival rate?Survival rate may be defined as the time duration in which a particular organism survives from their birth to death.
Natality is the number of individuals born in a specific period of time, mortality deals with the number of dead individuals, and immigration means the entry of other individuals into a particular location. Apart from all these one factor i.e. pathogen presence also affects the survival rate of human population to a large extent. That we all see during corona virus times. All these factors contributed to the homeostasis by maintaining an equal degree of balance inside as compared to the outer environment.
Therefore, the factors that have contributed to an increase in the survival rate of the human population are natality, mortality, immigration, and pathogens presence.
To learn more about the Human population, refer to the link:
https://brainly.com/question/1083937
Tree require 20 L of water per day during the six hot months of the year. The water must be pumped to the plantation from the nearby stream. How many liters of water are needed each year to the water plantation of 900 trees?
Answer:
The correct answer is - 3285000 L.
Explanation:
Given:
Water required by 1 tree = 20 L/day for six months or 182.5 days of the year
Total number of plants = 900
Solution:
The water required for all the plants for a single day:
900 x 20
= 18000/day
Required water for six months of the year would be
18000 x 182.5
= 3,285,000 L
Thus, the correct answer is - 3,285,000 L
When particles collide, they transfer
Answer:
energy
Explanation:
When particles collide, they transfer
✔ energy
i just got it right
what is a person that studies earth called?
Answer:
A Geologist cuz geo meanse earth and logist is someone who studies
Explanation: