Which event takes place first in the stages before the birth of a star?
Answer: The contracting cloud is then called a protostar. A protostar is the earliest stage of a star's life. A star is born when the gas and dust from a nebula become so hot that nuclear fusion starts.
Explanation:
Graph the following data tables
Answer/Explanation:
When plotting, mark the values as [tex]x[/tex] and [tex]y[/tex] values. Then go to the x-axis on the graph and plot the point x-axis point on the graph. Plot the [tex]y[/tex] point on the y-axis for the first [tex]y[/tex] point. Do the same for each point.
[tex]x\:\:\:\:\:\:\:y[/tex]
[tex]10\:\:\:\:1.9[/tex]
[tex]20\:\:\:\:3.8[/tex]
[tex]30\:\:\:5.75[/tex]
[tex]40\:\:\:\:7.7[/tex]
[tex]50\:\:\:\:9.6[/tex]
If completed correctly, it should appear like this:
Which type of cell is smaller?
Cells
A. Prokaryote
We
PL
SLI
AT H
Ecology.
B. Eukaryote
Evolution &
Classification
C. Nucleokaryote
Genetics & Meiosis
D. All types of cells have this structure.
Life Chemistry
(DNA, Proteins, etc.)
Respiration &
Photosynthesis
Scientific Methods
Click to choose your answer below:
A
B
С
D
How is molecular nitrogen (N2) utilized by plants and animals?
Before it can be utilized by plants and animals, molecular nitrogen (N2) must be converted by microbes that use N2 as a replacement for
Nitrogen is converted from atmospheric nitrogen (N2) into usable forms, such as NO2-, in a process known as fixation. ... The nitrogen is passed through the food chain by animals that consume the plants, and then released into the soil by decomposer bacteria when they die.
Answer:
Oxygen ✓
Explanation:
That's it and it's actually simple and correct
If a label indicated the presence of a radioactive isotope, you would know what
about the substance?
Answer:
Radioisotopes are radioactive isotopes of an element
Explanation: Radioactive isotopes are detected by: photographic film.
a cloud or bubble chamber.
a liquid scintillation detector.
a Geiger-Muller counter.
Answer:
we would know that the substance's atoms have an unstable combination of neutrons and protons or excess energy in their nucleus.
what is the purpose of a salt bridge in the voltaic cell?
Answer:
The purpose of the salt bridge is to keep the solutions electrically neutral and allow the free flow of ions from one cell to another. Without the salt bridge, positive and negative charges will build up around the electrodes causing the reaction to stop.
I am made of many cells. My cells have an organized nucleus. I have two parents and eat food, Guess Who?
Answer:
Animalia.
Explanation:
Just ask!
Hope this helps. :)
Animalia that consist of many cells with an organized nucleus, have two parents, and eat food.
What are the characteristics of Animalia?Animal cells are the basic living unit of organisms in the kingdom Animalia. They are eukaryotic cells, which means they have a true nucleus and special structures called organelles that perform various tasks.
All members of the Animalia are multicellular, and all are heterotrophs (meaning that their nutrition depends directly on or indirectly on other organisms). Most swallow food and digest it in an internal cavity. Animal cells lack the rigid cell walls characteristic of plant cells.
Classification of Fauna - Porifera, Coelenterata, Platyhelminthes, Aschelminthes, Annelida, Arthropoda, Mollusca, Echinodermata, Chordata.
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Can someone help me with my living earth homework
Which is the best hypothesis for the extinction of the dinosaurs at the end of the Cretaceous period?
A.
Mammals evolved and killed the dinosaurs.
B.
Humans destroyed all the dinosaurs.
C.
The climate changed and the dinosaurs could not adapt.
D.
The dinosaurs killed each other.
Answer:
extinction, the best-known being the non-avian dinosaurs. It also destroyed myriad other terrestrial organisms, ...
Explanation:
....
Distilled water is _____ or _______ to the solution inside a cell
Answer:
hypertonic or hypotonic
Explanation:
What is the age of a meteorite if potassium-40 decayed from 80 g to 10 g? The half-life of potassium-40 is 1.3 billion years.
1.3 billion years
2.6 billion years
3.9 billion years
5.2 billion years
Answer: b
Explanation: i toook the test
Answer: C.
Explanation:
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kfl,vlmgvkfgjvmdfk
you have to always act your age and actually ask a question
Cell processes that increase the surface area of a cell are called:
Answer:
Answer below
Explanation:
As the radius of a cell increases, its surface area increases as the square of its radius, but its volume increases as the cube of its radius (much more rapidly).Therefore, as a cell increases in size, its surface area-to-volume ratio decreases.Prokaryotic cells have internal folding of the cell membrane which are responsible for certain functions like respiration.These foldings too increase the surface area.Prokaryotic cells have internal folding of the cell membrane which are responsible for certain functions like respiration. These foldings increase the surface area.
Eukaryotic cells are compartmentalized which is a method to increase the surface area as there are lots of membranes inside the cell across which many processes take place.
In some cells like the ones making the lining of the villi in the small intestine there are folding in the outer cell membrane which also increases the surface area,
Non-motile cilia are structures in a cell membrane that also increase surface area. Non-motile cilia are like oars that push through the cell membrane. They are thinner and longer than microvilli. Non-motile cilia are also called primary cilia.
__________________________________________________________
(Hope this helps can I pls have brainlist (crown)☺️)
what land forms are created by wave and deposition?
Answer: It can create unique landforms, such as wave-cut cliffs, sea arches, and sea stacks. Deposits by waves include beaches. They may shift along the shoreline due to longshore drift. Other wave deposits are spits, sand bars, and barrier islands.
Explanation:
Drag each label to the correct location on the image.
The image below shows the process of DNA replication. Identify the components of the process.
Answer:
Edmentum
Explanation:
Got it right
haemoglobin is presented in........................... cells
1. An is a circulation of a
convection cycle of air.
Answer:
True
Explanation:
the threadlike structures that contain genes are called
Answer:
Chromosome are the threadlike structures that contains genes.
2. part of a plant is removed to grow another plant
Answer:
Cutting
Explanation:
Frequent earthquakes in an area may indicate
Frequent earthquakes in an area indicates that there are tectonic plates boundaries and there is sudden regression of underground rocks. Through the areas when there is sudden movement and dynamic stress along with the sudden triggering.
What are tectonic plates ?Tectonic plates are larger pieces of earth's crust and uppermost mantle. Tectonic plates movement cause the earthquakes to occur.
The other types of earthquakes are that of volcanic earthquakes, induced earthquakes and collapse earthquakes.
Therefore, earthquakes are mainly due to various conditions and other environmental activities that are not under control.
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What is the difference between a population and a community?
Multiple choice question.
cross out
A)
A population is made up of all species in an area. A community is made up only of one species.
cross out
B)
A population is made up of only one species. A community is made up of all species in an area.
cross out
C)
A population is made up of all the species and nonliving things in an area. A community is made up of all species in an area.
cross out
D)
The words mean the same thing.
What does the name protozoa mean?
first microbe
first animal
first organism
first cell
PLZ HELP!!!
q#20
Answer:
First animal.
Explanation:
In Greek proto means first and zoa means animal. Hope this helped :)
Answer:
I hope this helps.
Explanation:
urea and uric acid are products of the breakdown of:
which important event in meiosis occurs during prophase?
Answer:
Crossing over
Explanation:
for variations which is one of the most important characteristic for Meosis
Considering that cells vary in shape,what other dimensions or parameters of the cell could be used to estimate cell size?
Answer:
Three general factors determine cell shape: the state of the cytoskeleton, the amount of water that is pumped into a cell, and the state of the cell wall. Each of these three factors is highly dynamic, meaning they are constantly in flux or can be suddenly changed. This dynamism is how cells can vary in shape.
help anyone i will mark you brainliest so pls...
Answer:
Purpose of ecosystems
Explanation:
What is likely to happen to the ecosystem pictured below after a period of time? Erupting volcano and magma. A. The ecosystem will undergo only primary succession. B. The ecosystem will undergo only secondary succession. C. The ecosystem will undergo primary succession followed by secondary succession. D. The ecosystem will never recover.
An ecosystem is defined as the geographical region, in which plants, organisms, and animals with abiotic factors like weather, water, and landscape. The ecosystem that changes over time is known as ecological succession.
The correct answer is:
Option C. The ecosystem will undergo primary succession followed by secondary succession.
Ecological succession can be defined as:
1. Ecological succession refers to the change in the structure of the species in an ecological community over time.
2. The primary ecological succession begins in the lifeless region, such as the regions with no soil or incapable of sustaining life. In this, newly formed rock is colonized by living organisms for the first time.
3. The primary succession will be followed by the secondary succession, in which the organisms tend to re-habitat the area that has been destructed due to natural or human-made events.
Thus, in the given picture, the primary ecological succession is followed by the secondary ecological succession.
To know more about ecological succession, refer to the following link:
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Answer:
C
Explanation:
Trust edge 2022
Define photosynthesis?
Answer:
PROCESS BY WHICH PLANTS MAKE THEIR OWN FOOD WITH THE HELP OF WATER, MINERAL , CHLOROPHYLL CARBON DIOXIDE IN THE PRESENCE OF SUNLIGHT IS CALLED PHOTOSYNTHESIS.I HOPE IT IS HELPFULwhat would be a possible disadvantage of asexual reproduction?
Answer:
Susceptible to same diseases.
Explanation:
I just answered something along these lines.
In a phrase, tell what each scientist did to help develop the cell theory
Answer:
English scientist Robert Hooke published Micrographia in 1665. In it, he illustrated the smallest complete parts of an organism, which he called cells. theory that all organisms are made of cells, which are the basic structural units of life
