Answer:
Minerals from the land are washed into the ocean.
Salt in the ocean comes from the runoffs from the land, So the correct option is C. The minerals from the land are washed into the ocean.
Why are oceans salty?A large percentage of the earth is covered by water but 97 % of this water is salty and cannot be used. The salt in the ocean is added to by the erosion of rocks.
Rainwater contains dissolved carbon dioxide (CO2) from the surrounding air, which makes the rainwater slightly acidic due to the presence of carbonic acid. Rainwater physically damages the rock, and the acids chemically degrade the rock and transport salt and minerals in the form of ions. These ions are carried to streams and rivers, and eventually to the ocean.
The density of the ocean water is affected by the level of salinity. Higher levels of salinity cause water to be more dense and heavier and sink under less salty, warm water. This also affects ocean currents. In addition, marine life may need to adjust their saltwater intake.
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What type of organism did Skou use to study the sodium potassium pump because they had large nerve fibers?
a) Rats
b) Human
c) Lady bugs
d) crabs
please help <3
Answer:
D.
Explanation:
I looked it up and the first thing I saw was Crabs. I hope this answer helps. :)
By continuously maintaining a state of disequilibrium between the concentrations of Na+ and K+, the sodium-potassium pump regulates the membrane potential of the neuron. He's working with the membranes of crab nerve cells. Thus, option D is correct.
What sodium potassium pump do?Na-k pump controls the levels of Na+ and K+ throughout the cell membrane.
The concentrations of Na+ and K+ are higher on the inside and outside the cell, respectively, when the cell is at resting membrane potential.
When various ions pass across the neuron membrane, action potentials are produced. Sodium channels first open as a result of a stimulation.
Sodium ions rush into the neuron because there are far more of them on the outside, and because the inside of the neuron is negative in comparison to the outside.
Therefore, crab nerve cells use to study the sodium potassium pump.
Learn more about sodium potassium pump here:
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4) What is the most important chemical made during the light-independent reactions? It stores the energy that came from the sun.
The Calvin Cycle
Once in the mesophyll cells, CO2 diffuses into the stroma of the chloroplast, the site of light-independent reactions of photosynthesis.
What are 6 abiotic limiting factors
Answer:Physical factors or abiotic factors include temperature, water availability, oxygen, salinity, light, food and nutrients; biological factors or biotic factors, involve interactions between organisms such as predation, competition, parasitism and herbivory.
Explanation: read the answer!
Answer:
Abiotic limiting factors: wind, climate, weather(Ex: rainfall), soil composition, natural disasters, sunlight
Need help with this check smart people answer this fast
Answer:
her arms are puffy red and swollen
Explanation:
These are physical signs (symptoms) that show that the girl may have an allergic reaction. Hope this helps
6H2O has _ hydrogens total.
Answer:
12
Explanation:
6H2O or hexahydrate is a group of 6 water molecules or 6 molecules of dihydrogen monoxide. When looking for the total particular number of elements in a substance, find the subscript or smaller number in front of that atom, and look out for the coefficient or bigger number of the whole substance, and multiply that coefficient by the subscript to find the total atoms of that element.
Since there are 2 hydrogen's in each molecule of water, 6 molecules would make that a total of 12 hydrogen's for 6 molecules of water.
can someone confirm if this is the right sequence?
Answer:
Confirmed
Explanation:
PLZZ Help me, my dear friends!!! Can someone tell me what this is? The chapter's name is Active Transport (on my PPT).
Answer:
Exocytosis
Explanation:
"a process by which the contents of a cell vacuole are released to the exterior through fusion of the vacuole membrane with the cell membrane."
You can tell because the content is exiting the cell and fusing with the cell membrane.
Anyone have the answers to this lab ♀️
Answer:
because theyre in our bodies and they have to be small to be in our bodies
Explanation:
Answer: I'm willing to help but, I can't see the screenshot.
I need help with this question on Study island I need help because i am stupid and don´t pay attention in class-
Human blood has a pH between 7.35 and 7.45. Which of the following best describes human blood?
A.
slightly basic
B.
strongly basic
C.
strongly acidic
D.
slightly acidic
Answer:
A
Explanation:
values higher than pH7 is count as basic
How are water molecules arranged in a liquid?
A. They are far apart and stay in one place.
B. They are close together and stay in one place.
C. They are far apart and move past each other.
D. They are close together and move past each
other.
Answer:
Explanation:
option D is correct
Ans) They are close together and move past each other.
Therefore option D is correct.
What 2 things must pass out of the nuclear pores?
Answer:
The two things that must pass through nuclear pores are small polar molecules, ions, and macromolecules (proteins and RNAs)
Explanation:
Answer:
small molecuels and ions
Explanation:
Can someone help with these two questions? Its due in an hour.
Answer:
1. 90 units
2. third level consumers
what is an example of direct impact on mining
Answer: The key direct impact of mining on forest ecosystems is the removal of vegetation and canopy cover. Indirect impacts include road-building and pipeline development, which may result in habitat fragmentation and increased access to remote areas.
List 3 adaptations of organisms for living in a desert
Answer:
1.LONG LEGS TO KEEP AWAY FROM THE LAND BECAUSE ITS REALLY HOT
2. SHORT FUR OR FEATHERS
3. LIGHT COLORED COATS TO KEEP THE SUN FROM REFLECTING OFF OF YOU SO THAT YOU AREN'T HOT
A fossil that forms when the hard parts, I.e bones, wood, etc.., are turned into stone
A: index fossils
B: mold and cast
C: petrified fossils
D: trace fossils
Answer:
C: Petrified Fossils or B: Mold and Cast
Explanation:
Nucleic acid segments and are nucleic acids that can store biological information based on the sequence of their nucleotide monomers. Figure 1 shows a short segment of each of the two types of nucleic acids. Which of the following best describes a structural difference between and ?
Full Question (figure attached):
Nucleic acid segments and ar
DNA and RNA are nucleic acids that can store biological information based on the sequence of their nucleotide monomers. Figure 1 shows a short segment of each of the two types of nucleic acids. Which of the following best describes a structural difference between DNA and RNA?
A. DNA contains four types of nitrogenous bases, whereas RNA contains only two types of nitrogenous bases
B. The backbone of DNA contains deoxyibose, whereas the backbon e of RNA contains ribose.
C. A DNA molecule is composed of two parallel strands with the same 5'-3' directionality, whereas an RNA molecule is composed of only one strand
D. Phosphate groups provide rigidity to DNA, but RNA is flexible and contains no phosphate groups
Answer:
B. The backbone of DNA contains deoxyibose, whereas the backbon e of RNA contains ribose.
Explanation:
A. DNA contains four types of nitrogenous bases, whereas RNA contains only two types of nitrogenous bases - this is false. Both contain four types of nitrogenous bases. DNA contains cytosine, guanine, adenosine and thymine, whereas RNA contains cytosine, guanine, adenine, and uracil.
B. The backbone of DNA contains deoxyibose, whereas the backbon e of RNA contains ribose. - this is true, each nucleotide in DNA contains a deoxyribose sugar, whereas each nucleotide in RNA contains a ribose sugar
C. A DNA molecule is composed of two parallel strands with the same 5'-3' directionality, whereas an RNA molecule is composed of only one strand - this is false. DNA is composed of 2 strands, and RNA is composed of one, but the DNA strands run in an anti-parallel configuration (one runs 5'-3', the other runs 3'-5')
D. Phosphate groups provide rigidity to DNA, but RNA is flexible and contains no phosphate groups - this is false, both DNA and RNA nucleotides contain phosphate groups
which best describes a gene? 1. the short arm of a a chromosome 2. tightly coiled strands of DNA 3. the center of a chromosome 4. a segment of chromosomal DNA
Answer:
It's D. A segment of chromosomal DNA.
Explanation:
The functional and the physical element of genetics are called genes. They get inherited in the form of pairs from the parents of the offspring.
The genes are best described as:
Option 4. A segment of chromosomal DNA.
The statements can be explained as:
The short arm of the chromosomes is called a P-arm found on the chromosomes either the above or the below section of the centromere.Chromosomes are the tightly bonded thread-like configurations of DNA surrounding the histone protein.The centromere is in the middle of the chromosome that holds the two sister chromatids of the chromosomes.Genes are the element of the DNA that codes for proteins and determine the functions of the cells and attributes.Therefore, the correct option is D.
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all of the following will take place during the first trimester except?
a. heartbeat can be detected
b. external sex organs show the sex of the baby
c. lenses of the eye appear
d. wake and sleep cycles become regular
Answer:
b
Explanation:
What is the meaning of Gago ka?
No stupid answer or else I report you!!!!!
Gago ka!!
Gago is a descendant of the Portuguese word gago and gaguejar, meaning "stupid", "foolish" or "ignorant".
Answer:
iT means not intelligent it wont let me say the other word
Explanation: no need to explain
which process produces large amounts of energy in a star by combining lighter elements into a heavier element
Answer:
Fusion
Explanation:
A star's energy comes from the combining of light elements into heavier elements in a process known as fusion, or "nuclear burning". It is generally believed that most of the elements in the universe heavier than helium are created, or synthesized, in stars when lighter nuclei fuse to make heavier nuclei.
Answer:
Nuclear fusion
Explanation:
A cell membrane is a rigid structure that can prevent a cell from bursting due to increased internal water pressure.
True
False
Answer:
False
Explanation:
A cell membrane is not rigid a cell wall is rigid.
Photosynthetic organisms living deep in the water will have pigments that can absorb
A. orange light
B. blue light
C. yellow light
D. red light
Answer:
Light passes through air pretty freely, but gets absorbed and refracted a lot more in water.
Explanation:
A scientist concludes that genetic inheritance of a mutated (changed) gene, such as a gene change that creates different-colored organisms in a population, is more beneficial to an organism over time and contributes to biological fitness. Discuss why a scientist would make that claim.
Answer:
If there is a change in the gene, this can further create a new generation of organisms with this change. With certain changes, it enables organisms to survive in other conditions.
Pls mark as brainliest
The mass of Jupiter, compared to the Earth, is approximately:
3 times greater
1,300 times greater
300 times greater
Answer: The answer is 300,
Explanation:
Jupiter is somewhere around 318 times larger then the Earth.
Inherited traits can be dominant, recessive or neither.
True
False
ANSWER FAST PLS!!
Answer:
True
Explanation:
We are learning about this in science this week and im pretty sure this is true.
Pls answer it guy.. It is in the picture tap it to see the full picture
__________________________________________________________
6- Parasitism; is Symbiotic Relationship in which one the parasite, lives on or inside another organism which is called the host causing it some harm. Parasite is benefitted and Host is harmed
7- Commensalism; is an association between two organisms in which one benefits and the other derives neither benefit nor harm.
8- Predator; is an animal that eats other animals
9- Mutualism; is a relationship between two organism where both of them are benefitted
10- Prey; gets eaten by the predator
11- Symbiosis; is A long term relationship
_____________________________________Best Regards,
"Borz"
does anyone know about herpetology
Answer:
no i dont
Explanation:
Answer:
Herpetology in lamen terms is the study of reptiles and amphibians. I've had an interest in herpetology all my life and here in Florida, well... herpetology can get interesting.
Explanation:
What would happen to the concentrations of
Pyruvate, NADH and intermembrane H+ if the ETC
stopped working?
Answer:
Stay the Same, Increase, Decrease
Explanation:
Glycolysis produces pyruvate which is functioning normally if only the ETC (electron transport) stopped working because the ETC happens AFTER glycolysis, hence pyruvate is being produced and used at a normal rate (no change). NADH is produced in the cellular respiration stage PRIOR to the ETC so it is being created at a normal (or average) rate, however, it is not being used and split properly (meaning, not enough) in the ETC stage hence it's concentration increases. H+ decreases because it cannot be made if the prior step(s) were not complete.
What would happen to the concentrations of pyruvate, NADH and intermembrane H+ if the ETC stopped working are:
Pyruvate would stay the same and not be affected.that is it would remain the same.NADH would increaseH+ in the intermembrane would decrease.The concentration of the Pyruvate would not be affected If ETC stopped working and so this will make NADH would increase. Due to the fact that there is no electrons been transported down the chain, so therefore, no H+ would be moved and this in turn would make the concentration of H+ in the intermembrane space to reduce.Conclusively, we can therefore say that what would happen to the concentrations of pyruvate, NADH and intermembrane H+ if the ETC stopped working are:
Pyruvate would stay the same and not be affected.that is it would remain the same.NADH would increaseH+ in the intermembrane would decrease.Learn more from
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Match the following vocabulary words.
phalanges
1. knee bone or kneecap
2. bones in fingers and toes
3. inside bone in the lower
part of the arm
ulna
patella
Answer:
1) knee bone or kneecap=part of arm
2) bones in finger and toes =patella
3)inside bone in the lower=ulna
Warm-Up: What does it mean to be a prokaryotic cell? What
does it mean to be a Eukaryotic Cell? Which one came first?
(Think about the root words)
Answer:
eukrayotic cell l guess
Explanation:
A prokaryotic cell is a simple, single-celled (unicellular) organism that lacks a nucleus, or any other membrane-bound organelle. We will shortly come to see that this is significantly different in eukaryotes. Prokaryotic DNA is found in the central part of the cell: a darkened region called the nucleoid (Figure 1).
Unlike Archaea and eukaryotes, bacteria have a cell wall made of peptidoglycan, comprised of sugars and amino acids, and many have a polysaccharide capsule (Figure 1). The cell wall acts as an extra layer of protection, helps the cell maintain its shape, and prevents dehydration. The capsule enables the cell to attach to surfaces in its environment. Some prokaryotes have flagella, pili, or fimbriae. Flagella are used for locomotion, while most pili are used to exchange genetic material during a type of reproduction called conjugation.
Eukaryotic Cells
In nature, the relationship between form and function is apparent at all levels, including the level of the cell, and this will become clear as we explore eukaryotic cells. The principle “form follows function” is found in many contexts. It means that, in general, one can deduce the function of a structure by looking at its form, because the two are matched. For example, birds and fish have streamlined bodies that allow them to move quickly through the medium in which they live, be it air or water.
A eukaryotic cell is a cell that has a membrane-bound nucleus and other membrane-bound compartments or sacs, called organelles, which have specialized functions. The word eukaryotic means “true kernel” or “true nucleus,” alluding to the presence of the membrane-bound nucleus in these cells. The word “organelle” means “little organ,” and, as we learned earlier, organelles have specialized cellular functions, just as the organs of your body have specialized functions
