Answer:
There are three main causes of change in population: births, deaths and imigration flow. The Coronavirus has affected two of these three factors. The death rate has increased substantially since the pandemic hit. In under 6 months, more than 200,000 people have died. This drastic number of deaths in such a short amount of time is bound to decrease the population of the United States by a considerable margin. Immigration flow has also halted since the beginning of the pandemic. Travel bans and the close monitoring of borders has ensured that the number of immigrants entering the United States has decresed greatly.
Most likely the pressure gradient present between City A and City B that is City A is 1,018 mb, and City B is 980 mb, will - The high-pressure system at City A will create winds that blow toward the low-pressure system at City B.
A force exerted on a surface by the air above it as gravity pulls it to Earth is called air pressure or atmospheric pressure. Atmospheric pressure is commonly measured with a barometer.
it determines wind and weather patterns across the globewinds move from high air pressure to low air pressureIt leads directly to wind and influences the speed and direction of that wind.Pressure differences or gradients also affect larger weather systems like storms.Thus, Most likely the pressure gradient present between City A and City B that is City A is 1,018 mb, and City B is 980 mb, will - The high-pressure system at City A will create winds that blow toward the low-pressure system at City B.
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The circulatory system works closely with which two other systems?
NEED THIS quick!!!
Answer:
The respitory system and the nervous system.
Explanation:
I'm pretty sure
. A snail travels 20 cm in 20 minutes. How fast was the snail traveling in cm/min?*
Not all macromolecules are created equal. Explain why you would get more energy from eating a cheeseburger than you would from eating an apple. Be sure to include specific macromolecules in your response.
Answer: Carbohydrates are the body’s main source of energy. The fruit, vegetables, dairy, and grain food groups all contain carbohydrates.
Carbohydrates are the body’s main source of energy but Fats give you more energy. They help the body absorb certain vitamins. Many foods naturally contain fats, including dairy products; meats, poultry, seafood, and eggs; and seeds, nuts, avocados, and coconuts.
The burger would have more energy from eating it because it has a large amount proteins in it that can help your body. A apple can give you energy too because it is a carbohydrate but it wouldn’t be enough.
are there any element or molecule that oxygen reacts violently to
Write the isotope notation for Tungsten-184
9. Which of the following statements describes the relationship between photosynthesis and cellular
respiration?
a. Photosynthesis and cellular respiration use the same reactants
b. The products of photosynthesis are the reactants of cellular respiration
c. Photosynthesis and cellular respiration yield the same products
Chlorophyll is a reactant of photosynthesis and a product of cellular respiration
Answer:
b. The products of photosynthesis are the reactants of cellular respiration
Explanation:
This is because they are not the same equation. They do not have the same products or reactants. Reactants are what is needed for the process to occur. Products are what it creates from the reactants. Chlorophyll is a pigment. If you want to look up the equations for photosynthesis and cellular respiration.
A biologist observed a plant cell in a drop of water as shown in diagram A. The biologist added a 10% salt solution to the slide and observed the cell as shown in diagram B. The change in appearance of the cell resulted from A) more salt moving out of the cell than into the cell B) more salt moving into the cell than out of the cell C) more water moving into the cell than out of the cell D) more water moving out of the cell than into the cell
Explanation:
hope this helps
check it out
A biologist added a 10% salt solution to the slide and observed the cell as shown in diagram B. The change in appearance of the cell resulted from
D) more water moving out of the cell than into the cellAccording to the complete diagram, we can see that there is a transport between cells as there is a change in appearance as the biologist added a 10% solution to the second cell.
As a result of this, we can see that through the rigid cell wall, vacuole and cytoplasm, there are mechanisms for transport as it allowed more water to move out of the cell than into the cell which caused the shrinkage.
Therefore, the correct answer is option D
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Which best explains how nutrients, salt, sediment and pollutants get into estuaries and oceans?
Answer:
There's not a "best" explanation unless it is a multiple choice question -
However, some prominent ways are
1) runoff from heavy rainfall
2) industrial discharge
3) storm drains
4) natural sediment transport via water flow / currents
Sediments, fertilizers, and other contaminants are transported to estuaries by water that drains from uplands. A large portion of the silt and contaminants are filtered out of the water as it passes through wetlands like swamps and salt marshes.
What are estuaries?A coastal body of saltwater that is partially contained, has one or more rivers or river or lake into it, and has a direct connection to the open sea is called an estuary. Estuaries are an instance of an ecotone since they are a zone of transition between river ecosystems and ocean settings.
A place in which a freshwater river or stream joins the ocean is called an estuary. In estuaries, brackish water is created when a freshwater river and the salty ocean mingle. Although not as salty as the ocean, brackish water has some saltiness. Water that descends from uplands carries contaminants including fertilisers, sediments, and more to estuaries.
Therefore, sediments, fertilizers, and other contaminants are transported to estuaries by water that drains from uplands.
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1. How many degrees of longitude are they apart for the following points:
B and F
E and G
C and I
G and J
F and C
2. How many hours apart are
B and F
E and G
C and I
G and J
F and C
Answer:
1. i love pizza
Explanation:
4 wow quizzy Please read this carefully A fair warning, Look out for a Discord user by the name of with the tag #2911. She is going around sending friend requests to random Discord users, and those who accept her friend requests will have their accounts DDoSed and their groups exposed with the members inside it becoming a victim as well. Spread the word and send this to as many Discord servers as you can. If you see this user, DO NOT accept her friend request and immediately block her. Our team is currently working very hard to remove this user from our database. Please stay safe. -Discord team
Copy and paste this to all the servers you are in
Step 1: Identify which nucleic acid the following strand is. 5' TAC - ACT -
GCG - CGA - TAG - CTA - ATT 3' The above strand is an example of: *
it's an example of DNA replication
5' TAC - ACT -GCG - CGA - TAG - CTA - ATT 3'
can be paired with:
3' ATG-TGA-CGC-GCT-ATC-GAT-TAA 5'
Which are functions of the digestive system?
Answer:
Stated below:
Explanation:
To achieve the goal of providing energy and nutrients to the body, six major functions take place in the digestive system:
Ingestion.
Secretion.
Mixing and movement.
Digestion.
Absorption.
Excretion.
Science Plz Help!!!!!
Answer:
So, I would believe that the answer is C) A laser beam looks bent when it passes through glass blocks. So we know that refraction means the fact or phenomenon of light, radio waves, etc. being deflected in passing obliquely through the interface between one medium and another or through a medium of varying density.
Explanation:
So we know that refraction means the fact or phenomenon of light, radio waves, etc. being deflected in passing obliquely through the interface between one medium and another or through a medium of varying density.
Hope this helps! <3
What supersedes mitosis?
Answer:
During mitosis one cell divides once to form two identical cells.
The major purpose of mitosis is for growth and to replace worn out cells.
If not corrected in time, mistakes made during mitosis can result in changes in the DNA? that can potentially lead to genetic disorders.
Explanation:
All cells are filled with
Answer:
Cytoplasm is the fluid that fills a cell. Scientists used to call the fluid protoplasm. Early on, they didn't know about the many different types of fluids in the cell. There is special fluid in the mitochondria, endoplasmic reticulum, Golgi apparatus, and nucleus.
Explanation:
i hope this helps :)
35. Which statement best describes the cell membrane of a living plant cell?
A. It selectively regulates the passage of substances into and out of the cell.
B. It is composed of protein and carbohydrates only.
C. It has the same permeability to all substances found inside or outside the cell.
D. It is a double protein layer with floating lipid molecules.
Answer:
The cell membrane of a living plant cell selectively regulates the passage of substances into and out of the cell (option A).
Explanation:
The plasma membrane in a living plant cell is composed of a double lipid layer that gives it hydrophobic character and acts as a semi-permeable barrier. The partial permeability of the substances allows regulating the passage of substances from and to the interior of the cell.
At the level of the plasma membrane there are several mechanisms and transport to allow the entry of substances needed for the cell or the output of synthesized products or metabolic waste, thus regulating the passage of substance in a selective way.
Regarding the other options:
B. Plasma membranes are composed of lipids, not just carbohydrates and proteins.
C. Permeability is not for all substances, but is selective.
D. Plasma membrane is a lipid bilayer, not a double layer of proteins.
Convection refers to the movement of heat through a fluid, such as water. Which best describes one way that convection influences the circulation of ocean water?
Answer:
onshore wind and offshore wind
Answer:
Warm water at the surface flows toward the poles and sinks as it cools.
Explanation:
took it on edge
What best describes a river system?
A. the network that includes all the waters feeding into a main river and all the waters branching out from it
B. the source of a river and all the tributaries feeding into the river
C. the source and mouth of a river
D. all the distributaries flowing away from a river and the mouth of the river
Answer:
i think it’s (A)
Explanation:
The double helix of DNA is like a twisted ladder. The ladder is made of 2 strands of nucleotides. The sugars and phosphates make up the "_____________ backbone", or the outsides of the ladder. *
Answer:
DNA
Explanation:
Explain the roles of mRNA and tRNA in protein synthesis
Answer:
look at Explanation
Explanation:
Molecules of tRNA exist free in the cytoplasm of cells. When protein synthesis is taking place, enzymes link tRNA to amino acids in a highly specific manner. The third form of RNA is messenger RNA (mRNA), which receives the genetic code from DNA and carries it into the cytoplasm where protein synthesis takes place.
What reaction occurs in the stroma of the chloroplast?
Group of answer choices
Krebs Cycle
Light Independent Reactions
Light Dependent Reactions
Glycolysis
Answer:
Light Independent Reactions
Explanation:
The stroma is the fluid-filled space of chloroplasts the thylakoids. It contains all the enzymes required for light-independent reactions of photosynthesis and is, therefore, the site of the Calvin cycle.
The Krebs cycle and glycolysis are stages of cellular respiration and occur in the mitochondria.
The light-dependent reactions occur in the thylakoids
What should Smithers' conclusion be?
If this is a question there should be answers so i can answer
Explanation:
The special drink appears to reduce 1,587 stocks - special - spcual drink 2, 113 stocks - No drink Page 2 Homer notices that his shower is covered in a strange green slime. His friend Barney tells him that coconut juice will get rid of the green slime.
Fossil fuels (oil) are part of which cycle?
carbon
nitrogen
phosphorus
oxygen
why does water molecule have two different types of charges
Explanation:
Hey there!
The reason is there is a bonding in between two elements that is one is hydrogen, which has positive charges and oxygen which has negative charge. So, it is why water molecules have two different charge.
Hope it helps..
What is the answer for
34
Answer:
Explanation:
d
Which sample is eukaryotic
Answer:
its between A or D, becuase example C looks way to much like a prokaryotic cell. Sorry its not much help.
Explanation:
What is the difference between cytokinesis in plant and animal cells?
Answer:
The primary difference between cytokinesis in plant and animal cells is that cellular reproduction is done sexually (meiosis) in animal cells, while cellular reproduction is done asexually (mitosis) in plant cells.
To better elaborate, Sciencing.com, states, "In plant cells, cytokinesis simply consists of the cell plate forming at the equator of the old cell that will soon be two. The cell plate–the future cell wall that will separate the two cells--divides the cytoplasm in half. . . . Cytokinesis in animal cells is more complex than in plant cells. A contractile ring, underneath the original cell's membrane, begins to form and contracts, which creates the cleavage furrow. The furrow grows deeper between the two cells until they pinch off and separate from one another, resulting in two separate daughter cells."
Remember, always cite your sources.
. A scientist counts the number of cells in three separate Petri dishes. O The data shown in the table best illustrates which part of the cell theory. All living things are made of cells. Cells are the basic unit of living things. Petri Dish А Number of Cells Number of Cells: Number of Cells: Day 1 Day 10 Day 20 0 0 0 5 50 150 25 600 1200 B. Organisms can be unicellular or multicellular. c с O All cells come from other cells. CLEAR ALL
Answer:
c
Explanation Your welcome
Answer:
It's C because I took a test on this in 8th Grade
Explanation:
Match the following organelles to their function or structure. Each organelle is only used once!!!
Cell membrane
Controls the passage of materials into and out of a cell
Flagella
Acts as a whipping propeller, moving a cell through its environment
Lysosomes
Digest foreign substances and worn out cell parts
Mitochondria
Ribosomes
Makes proteins
Cilia
Nucleus
Protects DNA and is considered the “brain” of the cell
Golgi Apparatus
Modifies and packages proteins
DRAG & DROP THE ANSWER
Produce energy (ATP)
Structures shaped like small oars that beat in unison to move the cell or the liquid around it
Answer:
Cell membrane - Controls the passage of materials into and out of a cell
Flagella - Acts as a whipping propeller, moving a cell through its environment
Lysosomes - Digest foreign substances and worn out cell parts
Mitochondria - Produce energy (ATP)
Ribosomes - Makes proteins
Cilia - Structures shaped like small oars that beat in unison to move the cell or the liquid around it
Nucleus - Protects DNA and is considered the “brain” of the cell
Golgi Apparatus - Modifies and packages proteins
Explanation:
The cell membrane separates the inside of the cell from the external environment, and regulates substances that enter and leave the cell.
The nucleus contains the genetic material of the cell, and therefore controls all cellular activities. It is also the site of transcription of mRNAs. mRNAs are translated at ribosomes.
The ribosomes are like factories that synthesize proteins through the process of translation.
When proteins have been produced, they are modified, packaged, and transported to their specific sites by the Golgi apparatus.
Mitochondria are energy-producing organelles - the site of cellular respiration.
Lysosomes are membrane-bound sacsin which waste products are digested
Some cells have cilia, which are hair like-structures that beat in unison to aid in locomotion. Another locomotory organelle is the flagella, which is a whip-like structure that helps some single-celled organelles to move.
Identify the macromolecule in the figure that store genetic information in molecules DNA, and RNA?
Answer:
The correct answer is - option 2. (chemical structure of the nucleotide)
Explanation:
Nucleic acid, DNA and RNA stores genetic information which helps in produces various proteins and for the next generation of the cells. Nucleic acids are made up of monomers of nucleotides joined together to form the nucleic acids. Each nucleotide has sugar, a nitrogenous base, and phosphate in the structure that joined to form a helix structure.
Thus, the correct answer is - option 2.
Answer:
Explanation:
2
Which cellular structure in an animal cell helps maintain homeostasis by controlling the transportation of substances into and out of the cell?
Answer:
Cell membrane
Explanation:
Cell membrane is the cellular structure in an animal cell helps maintain homeostasis by controlling the transportation of substances into and out of the cell
what is homeostasis ?
Homeostasis is a self regulating process that maintain a stability of internal body with respect to the changing external environment which ultimately maintain a steady state of the living system.
It maintain body homeostasis by regulating body temperature, blood pH, blood glucose level, sodium, potassium and calcium ion concentrations.
Three mechanisms are involved in homeostasis such as Effector, Receptor, Control Center.
The homeostasis can be failed due to two factors such as due to an internal environment or other factors like Genetics, Physical condition, diet, nutrition, toxins, Psychological health etc.
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