Answer:
D. they are both rare, and valuable minerals.
Water pollution is caused by ______.
Answer:
Water pollution can be caused in a number of ways, one of the most polluting being city sewage and industrial waste discharge. Indirect sources of water pollution include contaminants that enter the water supply from soils or groundwater systems and from the atmosphere via rain.
The "lock and key hypothesis" attempts to explain the mechanism of
Vacuole formation
Sharing of electrons
Pinocytosis
Enzyme specificity
What is the role of bacteria and lightning in the nitrogen cycle ?
Answer: Atmospheric Fixation
The enormous energy of lightning breaks nitrogen molecules and enables their atoms to combine with oxygen in the air forming nitrogen oxides. These dissolve in rain, forming nitrates, that are carried to the earth.
I need help quick please
Answer:
D
Explanation:
The population density would be 20 / 5 = 4 mice per m².
A form of simple diffusion is Osmosis. In which direction will water flow in the process of Osmosis?
a- Water will flow away from the solutes, with the concentration gradient
b- Water will flow from low concentration to higher concentration
c- Water will flow with the solutes, against the concentration gradient
d- Water will flow towards the solutes (i.e. toward the higher salt concentration)
Answer:
Water will flow from low concentration to higher concentration.
Explanation:
Water will move in the direction where there is a high concentration of solute (and hence a lower concentration of water. Salt is a solute, when it is concentrated inside or outside the cell, it will draw the water in its direction.
PLS HELP ASAP WILL GIVE BRAINLIEST!!!
What happens to particles in a solid when heat is applied? (3 points)
a
They move around more.
b
They get closer together.
c
They reduce in size.
d
They stop moving.
¿una barra de acero en puente de un camino de la alta montaña tiene una longitud de 50 cm cuando se encuetra a 30 C. Calcular que longitud tendra cuando su temperatura descienda a la -25 C ?
Answer:
L = 50,033cm
Explanation:
Para saber cuál es la longitud final de la barra de acero cuando la temperatura desciende, solo debemos aplicar la siguiente formula:
L = L₀ (1 + ΔT)
Donde:
L = Longitud final L₀ = Longitud inicial = Coeficiente de dilatación lineal del acero = 1,2x10-5 ΔT = Cambio de temperatura T₁ – T₀Entonces, considerando los datos brindados en el ejercicio problema, sabemos que:
L₀ = 50cm T₀ = 30ºC T₁ = -25ºC ΔT = -25ºC-30ºC = 55ºCL = L₀ (1 + ΔT)
L = 50 cm x (1 + (1,2x10-5 x 55ºC))
L = 50 x (1 + 0,00066)
L = 50,033cm
Explain the differences in the population growth patterns of the two Paramecium species. What does this tell you about how Paramecium aurelia uses available resources?
Answer:
The data in the question is missing, luckily, I found a matching data:
The following data is the results of a trial of paramecium growth over 16 days, the numbers going in order horizontally P. aurelia grown alone, cells/mL, P. caudatum grown alone, cells/mL, P. aurelia grown in mixed culture, cells/ mL, P caudatum grown in mixed culture, cells/mL.
Day O 1 1 1 1
Day 2 4 5 3 5
Day 4 27 15 16 9
Day 6 43 24 31 10
Day 8 54 28 38 7
Day 10 47 28 45 4
Day 12 48 28 46 1
Day 14 49 28 50 0
Day 16 49 28 47 0
Answer:
The pattern of growth tells us that individual Paramecium aurelia uses a smaller amount of resources for growth compared to P. caudatum, hence the greater number of species after culturing.
Explanation:
When bacteria species are cultured in an appropriate growth medium, they utilize the nutrient in such media for their growth, and the growth becomes exponential until there are not enough resources to sustain a continuous growth of the organism, then the growth pattern starts to show a decline which is seen in the P. caudatum species quickly because the organism use up more resources compared to the Paramecium aurelia species.
HELP What is the relationship between restriction endonucleases, recognition sites, and restriction digestion?
is phosphorus a metallic, ionic, or covalent bond ?
Is air really dry? Or it’s just air
Answer:
It is just air
Explanation:
Answer:
It depends
Explanation: Dry air is a theoretical sample of air that has no water vapor. ... When the relative humidity drops below about 40% the air feels dry to skin. If very low relative humidities persist it can make the skin dry, lips chapped and can put more static in the air.
Hope I helped ;) It wouldn't hurt to mark this as brainliest. LOL
Which statement explains what happens at the water table?
Water rises to a place above the surface where people can collect it and use it for drinking water.
Materials such as clay or granite prevent water from seeping into the ground at the water table.
A boundary forms between an area filled with water and an area with both moisture and air.
Water from rivers, lakes, and streams seeps into the ground and saturates it to reach the water table.
Answer:
1.
Water rises to a place above the surface where people can collect it and use it for drinking water. Materials such as clay or granite prevent water from seeping into the ground at the water table. A boundary forms between an area filled with water and an area with both moisture and air.
Answer:
the answer is C
Explanation:
What would the complementary DNA bases for the strand ATTGAC be?
Answer: TAACTG
Explanation: Remember the base pairing rules: cytosine with guanine and adenine with thymine. To compliment the given strand, you'd have to choose the base that would pair with each individual nucleotide.
For example,
The pair to ACCTGAC would be TGGACTG.
Hope this helps,
Lacia
DNA bases for the strand ATTGAC is TAACTG which is the complementary base pairing rule adenine pairs with thymine and cytosine pairs with guanine.
What is DNA base pairing?Thymine, adenine, guanine, and cytosine are the four nitrogenous bases found in DNA. Adenine and thymine are joined by two hydrogen bonds, whereas guanine and cytosine are joined by three hydrogen bonds.
Base pairing that is complementary is what this is to create a DNA molecule, the DNA sequence of a gene must be copied, bases for the strand ATTGAC is TAACTG.
RNA polymerases, which join nucleotides to create an RNA strand, carry out transcription (using a DNA strand as a template).
Therefore, DNA bases for the strand ATTGAC are TAACTG due to complementary base pairing.
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BRIANLY AND POINTS TO BEST FASTER ANSWER
5. Compare and contrast the results of question 19 and question 20.
19. What occurs when the hydrogen ion concentration is greater than the hydroxide ion
concentration?
20. What occurs when the hydroxide ion concentration is greater than the hydrogen ion
concentration?
Answer:
they both have hydroxide
Explanation:
its right
When sugar is made by the plant, it doesn't go to waste if the plant doesn't need to use it immediately. It is stored in plants as a molecule called _____, which is just a bunch of glucose molecules bonded together in a particular way.
Answer:
Excess sugar is stored as Starch
Explanation:
Excess sugar is stored as starch in the roots of a plant
Answer:
Sugar is stored as starch or glycogen
What does ATP have in common with my iliac acids
Answer:
They are both acids.
Explanation:
ATP is classified as an acid, and illiac has acid in its name. (I'm assuming you meant oleic.)
an experiment is carried out to determine how different pH values of soil will affect the growth of tomato plants in this experiment the development variable could be the
Answer:its the tomato
the pH is what is going to effect the growth of tomatoes the higher pH levels should effect it the most possibly even kill it while the regular soil should not effect it to much.
Explanation:
Which statement best describes the connection between the proton gradient and the transfer of electrons through the electron transport chain?
The proton gradient is generated by water moving along the electron transport chain.
The proton gradient is generated by protons moving along the electron transport chain.
The proton gradient is generated by proton pumping into the intermembrane space using the energy from the transfer of electrons.
The proton gradient is generated by electron pumping into the intermembrane using the energy from the transfer of electrons.
Answer:
C. The proton gradient is generated by proton pumping into the intermembrane space using the energy from the transfer of electrons.
Explanation:
I got it right on Edg
When are organelles made
Answer:
Actually, organelle replication, occurs during the G2 stage of the cell cycle. During this stage, organelles are replicated and proteins are synthesized. The G2 phase follows DNA replication which occurs during the S-phase.
Explanation:
organelle replication, occurs during the G2 stage of the cell cycle. During this stage, organelles are replicated and proteins are synthesized. The G2 phase follows DNA replication which occurs during the S-phase.
DON'T COPY AND PASTE THAT!! You will get a bad score because l looked it up.
Which group of stars increase in brightness as they increase in temperature?
A) Supergiants
B) Giants
C) White dwarfs
D) Main Sequence
imprinting is a type of _ behavior
A. Reflex
B. learned
C. Instinct
D. inherted
Answer:
B.) Learned
Explanation:
Key points. Habituation is a simple learned behavior in which an animal gradually stops responding to a repeated stimulus. Imprinting is a specialized form of learning that occurs during a brief period in young animals—e.g., ducks imprinting on their mother.
Answer:
B Learned
Explanation:
I got it right on a quiz
In what organelle does cellular respiration occur
Answer:
cytoplasm and mitochondria i believe
Answer: Mitochondrion or how i would say the one that looks like a cheeto puff but yea its the mitochondrion
How does hydrologic cycle depend on carbon,nitrogen,and phosphorus cycle
The nucleus carries out the life function.
A.) regulation
B.) respiration
Answer:
regulation
Explanation:
The nucleus is basically the master control of the cells
In dogs, curly tails are dominant over straight tails. If a pure curly-tailed dog is mated with a straight-tailed
dog, what percentage of their offspring will have curly tails?
Answer:
Explanation:
50% cause curly tails are dominate
As of 2005, how many biodiversity hotspots have been identified around the world?
Answer: 34
Explanation: "In 2005, an additional analysis brought the total number of biodiversity hotspots to 34, based on the work of nearly 400 specialists." Basically, what the quote is saying is that, 34 biodiversity hotspots were found by 400 specialists.
Why is the arch shape and the keystone at the top of the arch a fitting analogy for what Robert Paine observed?
24. Pandas are animals that are SPECIALISTS and only eat one type of food
(bamboo) in the forest where they live. If another animal moves into the forest and
also eats that type of food. What will likely happen to the panda?
Answer:
They will run out of food faster and prob end up fighting
Explanation:
Which of the following is a function of the cell membrane?
keeps the cell wall in place
breaks down lipids, carbohydrates, and proteins from foods
stores water, salt, proteins, and carbohydrates
regulates which materials enter and leave the cell
Answer:
Regulates which materials enter and leave the cell.
Explanation:
I'm not 100% sure on this but I think cell membranes provide protection for the cell as well as regulating what enters and leaves the cell.
Cell membrane regulates which materials enter and leave the cell. So, the correct option is (D).
What is Cell membrane?Cell membrane is also called plasma membrane which is a semipermeable membrane made of lipids and proteins and found in all types of cells in humans, animals, plants, bacteria etc.
The cell membrane is the outermost boundary of animal cells. Cell membrane has many functions which are as follows:
Maintaining integrity within the cell.Providing support and preserving the shape of the cell.Through balancing endocytosis and exocytosis, it aids in cell growth regulation.Cell signaling and communication are also facilitated by cell membranes.Cell membrane functions as a selectively permeable membrane which enable only certain chemicals to enter the cell.
Thus, cell membrane regulates which materials enter and leave the cell. So, the correct option is (D).
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do organisms always stay in the same level? Explain your answer?
Answer:
No, organisms such as humans are omnivores, meaning they can eat both meat and plants and may act as 1st, 2nd or 3rd level heterotrophs.