How many moles are in 15 grams of Lithium?
2.16 grams
104.1 moles
2.16 moles
104.1 grams
How do animals transport materials?
Answer:
Thought the process of discussion and ossmossis as due to gaseous exchange
Explanation:
With the aid of thin layers and large surface area animal are able to transport material thought the blood due to diffusion and osmosis In order to transport different materials from a every of high concentration to a low concentration until material is equally distributed throughout the body
HURRY PLEASE HELP I REALLY NEED THE ANSWERS Briefly describe the three layers
of the mantle. Include
temperatures.
•Lithosphere:
•Asthenosphere:
•Mesosphere:
Answer:
lithosphere
Explanation:
is up of brittle crust and the top part of upper mantel and also the coolest and most rigid part of the earth
Answer:
Lithosphere:
The lithosphere is the rigid outermost layer of the earth known as the mantle and the crust. And it is defined by its rigid mechanical properties.
Asthenosphere:
This layer is highly viscous and is very mechanically weak and is located below the Lithosphere it is also known as the ductile region of the upper mantle.
Mesosphere:
The mesosphere is the third layer of the atmosphere, directly above the stratosphere and directly below the thermosphere. In the mesosphere, temperature decreases as altitude increases.
In your own words explain how the structure of the cell membrane determines what can and cannot pass through the cell membrane.
Answer:
The cell membrane is semi-permeable. (or selectively permeable). The unique structure of the cell membrane allows small substances (like oxygen or carbon dioxide) to easily pass through.
Explanation:
The principal components of the plasma membrane are lipids (phospholipids and cholesterol), proteins, and carbohydrate groups that are attached to some of the lipids and proteins. A phospholipid is a lipid made of glycerol, two fatty acid tails, and a phosphate-linked head group.
Answer:
Explanation:
Because the cell membrane is a selectively permeable membrane it decides what it will allow to pass through the membrane wall and what will not
In meiosis a diploid cell divides twice yielding four haploid daughter cells. In meiosis I
what separates?
a) Old and new chromosomes
b) Sister chromatids
c) Parent and daughter DNA
Homologous chromosomes
D)homologous chromosomes
Answer:
D
Explanation:
let me know if thats right
In meiosis I, HOMO-LOGOUS CHROMOSOMES separate (Option D).
Meiosis is a type of reductional cell division by which a parent cell produces four daughter cells, which contain half of the genetic material.
Meiosis has two successive rounds of cell divisions: Meiosis I and Meiosis II.
In Meiosis I, homo-logous chromosomes line up at the equator of the parent cell (Metaphase I) and then segregate to different daughter cells (Anaphase I).
In conclusion, in meiosis I, HOMO-LOGOUS CHROMOSOMES separate (Option D).
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9) List these biomes in order from the greatest to least diversity (temperate
deciduous forest, tropical rain forest, temperate rain forest).
Tropical rainforest, temperate deciduous forest, temperate rainforest
I'm not too sure if the temperate forest is more diverse than the rainforest, so sorry if I'm wrong. Tropical rainforests are the most diverse because of the humidity, which is water. The water helps the soil stay healthy, which makes more plants, which makes more animals and insects.
I hope this helps! Good luck!
The biomes in order from the greatest to least diversity will be tropical rainforest, temperate deciduous forest, and temperate rainforest.
Tropical rainforests refer to the rainforests that occur in areas that have no dry season.
The temperate deciduous forest refers to a biome that always changes. It has seasons such as winter, spring, summer, and fall.
Temperate rainforest refers to the broadleaf or coniferous forests that receive heavy rain. This condition supports ferns, shrubs, etc.
It should be noted that the biome with the greatest diversity is tropical rainforest while the least is the temperate rainforest.
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HELPP ASAP PLEASE I NEED ANSWERS GIVE A LOT OF POINTS (answer all plzzzz) 11-15
Answer:
11.) red aka b
12.)orange aka a
13.)yellow aka c
14.) orange aka b
15.) last one aka c
Explanation:
11.) F=ma---> 75=0.445(a)--->a=168.5m/s^2
12.)F=ma---> 5,100=m(3)---->m=1,700kg
13.)F=ma---> 3.63=18.15(a)--->a=0.2m/s^2
14.)F=ma---->F=(2,030,000)(15)----->F=30,450,000n
15.) Doubling the mass doubles the acceleration
Please help me I’ll give what ever it’s called
Answer:
organ to organ system
Explanation:
The illustrations are models of cells and cell organelles.
Which model shows a prokaryotic cell?
a. I
b. II
c. III
d. IV
Answer:
b. ll
Explanation:
I took the quiz and got it right.
Image II shows a model image of a prokaryotic cell.
What is a cell?
A cell is a basic unit of life. There are two kinds of cells prokaryotic cells and eukaryotic cells.
Cells organize to form a tissue. Image II is of a prokaryotic cell. It is flagella.
Many prokaryotes have locomotory structures called flagella (plural: flagellum). A majority of protozoa and some bacteria move around. As opposed to motile bacteria, which solely use flagella to move, protozoa use cilia, pseudopods, and flagella to move.
Therefore, Image II shows a model image of a prokaryotic cell.
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Which of the following statements tells how facilitated diffusion differs from
simple diffusion?
A. Particles move through cell membranes without the use of energy by cells.
B. Particles tend to move from high concentration to lower concentration.
C. Particles move within channel proteins that pass through cell membranes.
D. Particles tend to move more slowly than they would be expected to move.
Answer:
I think its C but I am not sure, I hope this helps :)
Explanation:
The statement 'particles move within channel proteins that pass through cell membranes' indicates the reason for which facilitated diffusion differs from simple diffusion (Option C).
Diffusion (both facilitated diffusion and simple diffusion) refers to the movement of substances across biological membranes from an area of high concentration to an area of low concentration.
Facilitated diffusion and simple diffusion are two types of passive transport that do not require energy to move molecules/ions in favor of a concentration gradient.
In facilitated diffusion, specific membrane proteins known as carriers or channels help to the movement of substances in favor of a concentration gradient.
Conversely, in simple diffusion, small molecules (e.g. CO2 and oxygen) freely diffuse across a selectively permeable membrane in favor of a concentration gradient.
In conclusion, the statement 'particles move within channel proteins that pass through cell membranes' indicates the reason for which facilitated diffusion differs from simple diffusion (Option C).
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Which process uses proteins to move molecules against a concentration gradient?
A. Passive Transport
B. Active Transport
C. Hypotonic
D. Endocytosis
What is the difference between glucose and ATP?
Glucose is a storable form of energy, while ATP is a usable form of energy.
ATP is a storable form of energy, while glucose is a usable form of energy.
ATP is only a usable form of energy, but glucose can be used and stored.
Glucose is only a storable form of energy, but ATP can be used and stored.
The main difference between glucose and ATP is that Glucose is a storable form of energy, while ATP is a usable form of energy.
Glucose is storable form of energy because it can't be used as energy until it can be broken down by mitochondria of the cell while on the other hand, ATP is the usable form of energy which we can get from the break down of glucose molecules. Our cells use ATP as a fuel to do various activities of the cell so we can conclude that in glucose, energy is present in stored form whereas ATP is used as energy in various activities.
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Simple Dominance is also known as...?
incomplete dominance
genetic dominance
complete dominance
forever dominance
Answer:
genetic dominance
Explanation:
Simple Dominance is also known as genetic dominance
Evidence that a meteor passed through to the surface of a moon or planet would be
A) a fiery streak in the sky
B.) impact crater
C.) meteorite pieces found on planet's surface
D.) both b and c
Answer:
D
Explanation:
Why are individual chromosomes more difficult to see during interphase than during mitosis
pyruvic acid enters the ____ and is first converted into _____.
a. krebs cycle; citric acid
b. krebs cycle; acetyl CoA
c. mitochondria; citric acid
d. mitochondria; acetyl CoA
Answer :
D. Mitochondria ; acetyl CoA
pyruvic acid enters the mitochondria and is first converted into acetyl CoA
Study the map of major bodies of water in the United
States
Major Lakes of the US
What does the map indicate about fresh water in the
United States?
O The Southeast gets fresh water mainly from the
Mississippi River.
The Pacific Northwest is far from any access to a
fresh water supply.
The North has a large supply of fresh water, due to
access to the Great Lakes.
O The Northeast does not have access to much fresh
water, due to the lack of a major river system.
wiece
Answer:
The answer is c) The North has a large supply of fresh water, due to access to the Great Lakes.
Explanation:
Hope this helps! And I got the answer off Edg 2020 so It might only work on there.
Answer:
c
Explanation:
8. The heart is considered to be a part of which of the two systems listed below? A circulatory and integumentary C circulatory and muscular B respiratory and muscular D skeletal and circulatory
I found this i hope it helps
About the Heart and Circulatory System
The circulatory system is composed of the heart and blood vessels, including arteries, veins, and capillaries. Our bodies actually have two circulatory systems: The pulmonary circulation is a short loop from the heart to the lungs and back again, and the systemic circulation (the system we usually think of as our circulatory system) sends blood from the heart to all the other parts of our bodies and back again.
As an electron approaches a proton, what happens to the electric force of attraction between them? (1 point) Group of answer choices Remains the same Increases Decreases It ceases to exist
Answer: increase
Explanation: cause ik
Answer: It increases
Explanation: As an electron goes near a proton, the force of attraction would increase. Electron is negatively charged while the proton is positively charged so they would naturally attract each other.
Hope this was helpful
(50 points)The picture is a cross section of a bone.
A cross sectional view of bone. X points to the inner layer. Y points to the middle layer.
Which structures of the bone are indicated by the arrows?
A. X-compact; Y-spongy
B. X-spongy; Y-marrow
C. X-spongy; Y-compact
D. X-marrow; Y-spongy
Answer:
it is b X-spongy; Y-marrow, i am doing the test, and the other person is correct.
Explanation:
The arrows point to the bone formations called X-marrow and Y-spongy. So, the correct option is D.
What are Compact and spongy bones?Osteons or haversian systems are tightly packed together to form compact bone. The osteon is made up of concentric circles (lamellae) of matrix surrounding a central canal known as the osteonic (haversian) canal. The bone cells (osteocytes), which are situated between both the rings of matrix, are found in regions known as lacunae.
The bone marrow stores fat and produces blood cells. Spongy bone, also known as cancellous bone, is composed of tiny, needle-like bone fragments organized in a honeycomb pattern. Bones that are more flexible can still be strong while weighing less. In the given example, the arrows indicate to a X-marrow and Y-spongy bone structures.
Therefore, the correct option is D.
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main parts of the male reproductive organ and their functions.....
Answer:
penis
Explanation:
sex
Investigating how temperature affects decay
Answer:
How does temperature affect decay?
Temperature. amount of water. Bacteria and fungi secrete enzymes onto food to digest it into soluble substances which they absorb. They respire using oxygen and release heat energy which increases the rate of decay.
Explanation:
Hope this helps, If it did, then I would really appreciate it if you gave me Brainliest, I only need one more to rank up and it has taken forever to get to where I am currently. Thanks.
In general, evolution is ____ a
process of change.
A. Fast
B. Nonexistent
C. Slow
Answer:
In general it is C. Slow
PLEASE ANSWER QUESTION ON PICTURE!!!! BRAINLIEST FOR CORRECT ANSWER!!!!
What picture? I dont see any
Answer:
the picture???
Explanation:
:)
Pls help me , if I get this right I get a A
topo map ,30 points !!
Answer:
7. 440
8. 500
9.450
10. Hiker s had the steepest elevation and they elevated 50 meters
I am not quite sure what 11 is. I hope the other ones helped though srry
Explanation:
Answer:7. 440
8. 500
9.450 its been a while but this is what i got
Explanation:
What shape is the sugar in a nucleotide?
Answer:
In double-stranded DNA, the molecular double-helix shape is formed by two linear sugar-phosphate backbones that run opposite each other and twist together in a helical shape. The sugar-phosphate backbone is negatively charged and hydrophilic, which allows the DNA backbone to form bonds with water.
Cellular respiration and photosynthesis form the basis of the __________.
Group of answer choices
A) water cycle
B) biomass
C) nitrogen cycle
D) carbon cycle
The deer tick attaches to a warm-blooded animal and feeds on its blood.
Ticks need blood at every stage of their life cycle. They also carry Lyme
disease, an illness that can cause joint damage, heart complications, and
kidney problems What type of relationship is this?
Mutualism
Commensalism
Predator Prey
Parasitism
Parasitism. Ticks are complete parasites with no regard for the well being of their carriers.
Students studying the workings of the kidneys completed an investigation. The students prepared four model cells by using dialysis tubing containing the same solution of blue dye and water. Each of the model cells originally had a mass of 10 grams. The students then placed each model cell in a beaker containing different concentrations of dye in water. After 24 hours, they recorded the mass of the model cells. Their data appears in the table.
Concentration of Water % Mass of Model Cell (g)
100 12
90 11
80 10
70 9
What is the most likely reason that the model cell placed in 100% water increased in mass?
Water reacted with chemicals in the model cell.
All of the water of the model cell evaporated.
Only half of the water entered the model cell.
Water diffused from the beaker into the model cell.
Answer:
Water reacted with chemicals in the model cell.
Explanation:
hope it helps