Answer:
About 78% of the Earth's atmosphere is made up of "free" nitrogen (N2), produced by biological and chemical processes within the biosphere and not combined with other elements. ... One family of nitrogen compounds produced by nitrogen - fixing bacteria are called nitrates.
Explanation:
Hope this helps
Free nitrogen refers to nitrogen gas (N₂) that exists in the Earth's atmosphere as a diatomic molecule consisting of two nitrogen atoms bonded together. It is called "free" nitrogen because it is not chemically combined with other elements or atoms.
Nitrogen gas makes up approximately 78% of the Earth's atmosphere, making it the most abundant gas present. Despite its abundance, most organisms cannot directly utilize nitrogen gas in this form. This is because the bond between the two nitrogen atoms is very strong, requiring a significant amount of energy to break.
Therefore, free nitrogen refers to nitrogen gas (N₂) present in the atmosphere that is not chemically combined with other elements. It needs to undergo nitrogen fixation to be converted into usable forms before most organisms can utilize it.
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tRNA is the molecule that brings the appropriate _______ _______ to the mRNA using an anticodon.
fill in the blank
If the statement is true, type true. If the statement is false, change the underlined word op plase
make the statement true.
Air pressure is the result of the weight of a column of air pushing on an area,
Answer:
10
Explanation:
Frida wants to measure the volume of a stone. She starts by pouring 473 mL of water into a large measuring cup. Then she drops in the stone. Now the water measures 499 mL. What is the volume of the stone?
A
15 g
B
26 mL
C
26 cm^3
3
D
62 cm^3
3
*don't respond if you don't know, irrelevant answers will be reported and removed*
Answer:
C
Explanation:
You subtract 499-473. That shows how much water is displaced and the volume of the stone. Hope this helps and have a great day!
Frida wants to measure the volume of a stone. The correct volume is B
The volume of the stone is 26 mL.
What is volume?
The initial volume = 473 mL
The final volume = 499 mL.
The final volume − Initial volume
= 499 − 473
= 26 mL.
Therefore, Frida wants to measure the volume of a stone. The correct volume is B .The volume of the stone is 26 mL.
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The cell membrane functions most like a(n)
A.) security guard
B.) brick wall
C.) painter
D.) delivery truck
Answer:
It's A, a security guard
Explanation:
The cell membrane is like a security guard because it controls what goes in and out of the cell.
Answer:
A
Explanation:
Why would scientists want to monitor the migration habits of red-winged blackbirds in MA?
Answer:
Blackbird and Oriole : Varieties of swamps, shrubs, swamps, and dry grasses; foraging in arable land and water. The species is most commonly found in freshwater marshes, but in wooded or bushy marshes, weed fields, hay fields, and salt marshes also have levels on the upper edge. Usually foraging in other open habitats, such as fields and tidal flats; outside the breeding season, flocks of chickens gather in farmlands, pastures and feedlots.
Among the birds we are most familiar with, the red wings seem to sing nasal sounds on every swamp and wetland from coast to coast. They are particularly bold, and a few often attack larger birds, such as eagles or crows, and they fly over their nesting areas. When singing, the male's red shoulder patches are hidden under the body feathers most of the time, which is very beautiful. Outside the nesting season, red wings sometimes live in large areas.
That's why. Hope it helps.
What prediction can you make about future levels
of carbon dioxide (CO2) in the atmosphere?
Answer:
they will increase
Explanation:
constant increase in population is leading to increased demand for land. hence more trees will be cut down for land hence high co2 levels due to reduced photosynthesis.
high popn. also leads to more pollution hence high co2 conc.
Listed in blue, please help!! Is biology and chemistry two different things and why?
Answer:
Yes they are two different things!
Explanation:
Chemistry is more basic to existence-it is the study of the composition of matter and all associated structures, properties, and reactions. This includes, but is not limited to, biological matter. Biology meanwhile is focused entirely on biological organisms.
Answer: Yes they are
Explanation: Biology is the study of life and the ecosystems of what surrounds it. Biology consists of anatomy marine biology and the spheres of the earth. Chemistry has to do with our elements take gold for example it is known as Au or Aurum. Element 79 with an atomic mass of 196.96657u you will learn this in chemistry. Chemistry makes biology like a scratch on the surface because in chemistry you are going deep into the elements by classifications and the periodic table. You will be able to learn about dissolvents and why salt dissolves in water. You will learn about molecules in both fields. In general, biology is more the basis of life and chemistry is the more complexity of life.
Help please describe how the biotic factors taiga differ from those in the rainforest
Answer: biotic factors include plants and animals. So, the rainforest animals are more adapted to warmer weather meaning they have less fur and are built for warmer weather. The plants in a rainforest need lots of water to survive as well as carbon dioxide so they have large, wide leaves.
In a Taiga biome, the animals have more fur and adaptations to help them to survive in colder weather. The plants primarily consist of fir and pine trees, which have waxy, needle-like leaves to retain water as well. The trees also dont lose their leaves in the winter.
Explanation:
The biotic factors are significantly found to be different in two types of habitation such as taiga and rainforests.
What are biotic factors?Biotic factors may be defined as those factors that are directly associated with living forms. It includes producers, consumers (herbivores, carnivores, and omnivores), decomposers, etc. It may also be characterized as any living thing that has a significant effect on an ecosystem.
The animals in the rainforests adapted to the average temperature that remains warm throughout the year and must be frost-free. So, the animals generally have less fur. While the plants require more water in order to survive and reproduce at a higher temperature.
The climatic conditions on taiga are actually cold as compared to the rainforests. So, the animals possess fur appearance in order to survive in low temperatures. The plants compose of waxy structures and needle-like leaves in order to retain water. The number of leaves remains the same throughout the year.
Therefore, the biotic factors are significantly found to be different in two types of habitation such as taiga and rainforests.
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Which alele combination represents a male who has an X-linked recessive disorder?
Explanation:
The allele combination would most likely be xx if recessive
Please identify the parts. I will mark brainlist
Answer:
a) mitochondria
b) centriole
c) nucleus
d) endoplasmic reticulum
e) cell membrane
Hope i helped and have a awesomly amazing day. :)))
What would be an appropriate key for these traits
Answer:
The correct answer is -
TT - short BB - blue eyes
Tt - short tail Bb - blue eyes
tt - no tail bb - brown eyes
Explanation:
In this given question it is stated that short tails of ribbits are dominant over the no tail trait of the rabbits and similarly blue eyes trait of the rabbits is also dominant over the brown-eye trait.
A dominant trait is represented by a capital letter and a recessive trait is represented by the small letter so for the tails alleles will be denoted as T and t, and for the eyes, the alleles would be B for blue and b for brown.
The key for these traits would be-
TT - short BB - blue eyes, due to both dominant allele,
Tt - short tail Bb - blue eyes, due to dominant allele masks the recessive allele
tt - no tail bb - brown eyes, due to both alleles are recessive
List two examples of an abiotic factor and a biotic factor interacting.
Example: mouse breathing air.
Answer:
human using hammer,duck drinking water
Explanation:
Answer:
f
Explanation:
Can you help me? Please
1. pH (fun fact, it means potention of hydrogen )
2. H+
3. hydronium ion
4. 7
5. 7
6. OH-
7. acidic
8. alkaline
HURRY PLEASE!
How are the vocabulary terms diploid and haploid related to each other?
Answer:
Haploid" refers to any cell that has 23 chromosomes (half of the total 46). "Gametes" are specifically sex cells that have 23 chromosomes. "Diploid" refers to any cell that has all 46 chromosomes. "Zygote" is the result of two gamete (haploid) cells fusing, and becoming a diploid cell.
what happens to cells that do not take up the recombinant plasmid
Explanation:
they are not transformed , and they die soon after they are still transfo4med because the nearby cells are transformed they change to a new cell with new characteristics. THEY ARE NOT TRANSFORMED AND THEIR CHARACTERISTICS ARE NIT ALTERED
Name the following blood vessels ABC
Answer:
Arteries, Veins, and Capillaries
Explanation:
IF A CUBE IS 1CM ON A SIDE, CALCULATE ITS SURFACE AREA. HINT WRITE 2 points
OUT FORMULA FOR SURFACE AREA OF A CUBE.*
8CM2
8CM3
6CM3
6CM2
2 points
FACURE IS 1CM ON A SIDE, CALCULATE ITS VOLUME. HINT WRITE OUT
Answer:
Surface area of the cube = 6cm²
Volume of the cube = 1cm³
Explanation:
The surface area of a cube, which refers to the sum of all the areas of the faces of the cube can be calculated using the formula:
S.A = 6 × a²
That is; a² + a² + a² + a² + a² + a²
Where;
a = length of a side of a cube
a² = area of one side of a cube
Note that, a cube has 6 faces
According to this question, a cube has a length of 1cm on each side.
Hence, S.A = 6 × 1²
S.A = 6 × 1
S.A = 6cm²
Volume of the cube can be calculated using the formula: a³
Where a = 1
Volume = 1 × 1 × 1
Volume = 1cm³
3
7
TIME REMAINING
57:02
The graph shows tide heights from a location in Canada.
Based on the trend shown by the data, which prediction
can be made?
Tide Height in Bay of Fundy, CA
14
12
O After 10:48 p.m., the tide height will be less than 10
m.
O The next high tide height will be higher than 12 m.
O After 10:48 p.m., the tide height will continue to fall.
If the graph continued, the next line would go down.
10-
8-
Tide Height (m)
6
2
O
3:25 AM
3:48 PM
9:56 PM
Po 4:14 AM)
10:22 AM
4:39 PM
10:48 PM
Answer:
c
Explanation:
did the test
Besides energy, what else is food used for?
Answer:
Food helps us to repair muscle and build DNA
Food can help your body insulate itself and improve your health
Food helps your brain.
Explanation:
hope this helps
What controls the timing of The Great Migration?
Answer:
The best time to see the Great Migration is during the dry season, between July and early October. It's warm, weather is stable, and animals are abundant. The sparse vegetation and dried-up waterways force the animals to head up north to find food and drink.
Explanation:
Complete the following activity. Compare 3 different pets.
You and your roommate have decide to purchase a pet. Both of you are in college and live in an apartment.
1. Choose a pet which would best fit your situation and your needs.
2. Consider the following questions.
A. What type of pet should you get?
B. Why do you want to purchase a pet?
C. How will the animal be taken care of?
D. What animals are allowed in the apartment?
E. How much money do you want to spend on the pet?
F. Where will you get the pet?
3. Conduct research on the type of pet you and your roommate would like to purchase. Compare several different options. Consider which option is the most reasonable and how well this options fits your wants, needs and budget.
Answer:
the answer to this question is A
When a cell is preparing to divide, it should not manufacture a protein that will cause it to divide early. The need for cells to follow a certain order during division is the reason cells-
A) Regulate gene expression
B) divide very slowly
C) Do Not manufacture enzymes to divide proteins
D) signal protein Not to stimulate cell division
Answer:d
Explanation:
When a cell is preparing to divide, it should not manufacture a protein that will cause it to divide early. The need for cells to follow a certain order during division is the reason cells signal protein Not to stimulate cell division
What is cell division ?
In a living organism there are two types of cell such as somatic cell and germinal cell which undergo the process of cell division.
Cell division occur which can be up two types such as mitosis and meiosis where mitosis is called as equatorial cell division as the number of daughter cell is equal to number of parent cell.
meiosis is called as reductional division as the number of daughter cell is half of the parent cell, occur in germ cell.
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In order to dilute a solution, you need to
A-add more of the solid
B-add more water
C-find the mass
D-find the volume
can you create a punnett square for this question?
Answer:
Explanation:
HERE U GO
This is the punnet square
Select all the types of transport that DO NOT require ATP
Active Transport
Passive Transport
Diffusion
Endocytosis
Exocytosis
Osmosis
Facilitated Diffusion
Answer:
diffusion, osmosis and facilitated diffusion
in order for a liquid to turn into a solid,would you transfer energy in or out?What happens to speed of molecules
Answer:
transfer energy out and the speed of the molecules would decrease and the particles would vibrate less
Explanation:
IF YOU HAVE DONE ODSSEYWARE PLEASE HELP AND GIVE THE THE ANSWER
Choose all the answers that apply.
Mudslides can be caused by _____.
earthquakes
volcanoes
tsunamis
weathering
Someone suffering tension headaches might achieve relief through
Answer:
biofeedback
Explanation:
Hope that helps
Oswald Avery helped build our understanding of genetics by showing that:
A viruses cannot infect cells.
B. DNA transformed bacterial cells.
C traits cannot be inherited.
D. proteins move between bacterial cells.
How one variable affects another happens in:
A. surveys.
B. case studies.
C. observations.
D. experiments.
The one variable affects another happens in experiments. Thus, option D is correct.
What is experiment?An experiment, or experimental research, is a research method in which the researcher manipulates or changes the value of one variable, (the independent variable) and measures the variable that is considered the dependent variable, in order to find how the change affects it.
The other three posible answers, observational research, survey and case study are also research methods, but the researcher can't manipulate or control any of the variables, these methods are used only to measure a specific variable.
Therefore, The one variable affects another happens in experiments. Thus, option D is correct.
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