What two elements have the same number of energy level (shells)?
Answer:
Elements that are found in the same horizontal row (belong to the same period) in the periodic table, e.g. Fluorine and Neon both have the same energy level of 2.
Note: The question does not specify any two elements.
Explanation:
The modern periodic table is organized into eight vertical columns known as groups and seven horizontal rows known as periods. The atomic number ( number of protons in the nucleus) of elements increases when moving across the periodic table from left to right. The horizontal rows or periods represents an energy levels or the number of electron shells in an element. Energy levels (also called electron shells) are fixed distances from the nucleus of an atom where electrons may be found. Elements belonging to the same period have the same number of energy level or shells. For example, the elements belonging to Period 2 include lithium, beryllium, boron, carbon, nitrogen, oxygen, fluorine and neon. These all have the same number of energy level of 2.
What is the complementary strand for the DNA sequence below? TAC CAG CCA
Answer:
the complementary strand is
Explanation:
ATG GTC GGT
the first one
What is a zero of the following function: f(x)=3x-15?
Answer:
-15
Explanation:
f(x) = 3x-15
f(0) = 3 (0) -15
3* 0 = 0
0-15 = -15
What can be said about farmers in highly developed countries?
A) They have little or no negative impact on the environment.
B) They practice subsistence agriculture.
C) They are able to incorporate polyculture into their farming practices.
D) They utilize organic farming techniques on a regular basis.
E) They rely on large amounts of energy from fossil fuels.
Answer:
c
Explanation:
because, it just makes sense
Answer: B.) they are able to practice subsistence agriculture
Explanation:
which subatomic particle of an atom moves around the nucleus
Answer:
Electrons
Explanation:
electrons, move around the nucleus
and electrons have a negative electrical charge.
Answer:
Electrons
Explanation:
The nucleus contains two types of subatomic particles, protons and neutrons. The protons have a positive electrical charge and the neutrons have no electrical charge. A third type of subatomic particle, electrons, move around the nucleus. The electrons have a negative electrical charge.
PLZ HELP ME :))) just the first one.
Answer:
organelle
cells
tissues
organs
organ systems
organisms
What are some "topics" to be considered when discussing the California Current
Ecosystem
Answer: Red tide events
Explanation:
Red tide events causing massive fish die-offs, unprecedented sea ice loss, erosion of coastal wetlands, and bleaching of coral reefs not only impact marine ecosystems but also communities, peoples' well-being, local businesses, and more.
These issues impacting ecosystems and people require solutions that consider ecosystems and people. These types of solutions are Ecosystem-Based Management, which considers social, economic, and ecological trade-offs when deciding how to address these issues.
What wind happens during the night at the beach
Answer:
Land breeze, a local wind system characterized by a flow from land to water late at night. Land breezes alternate with sea breezes along coastlines adjacent to large bodies of water. Both are induced by differences that occur between the heating or cooling of the water surface and the adjacent land surface.
Explanation:
Answer:
A land breeze
Explanation:
describe how the shape of the insulin receptor allows glucose to get into the cell
helppp!!!!
Type 1 Diabetic here! I can help!! so basically the receptor for insulin is a large protein that binds to insulin and passes its message into the cell. It has several functional parts. Two copies of the protein chains come together on the outside of the cell to form the receptor site that binds to insulin.
I hope this helped :)
Someone help please. For brainliest answer!!
because they are attracted by the smell of resin/ amber. they become trapped in the substance and the amber hardens
Answer:
the insects are attracted to the polysaccharide rich thick resin that seeps from the trees. This resin is highly nutritious but has one problem for the insects- its complete lack of viscosity. The thick resin entraps the insects at the bark, and the tree continues to grow outward and in doing so, fossilises the insect alive.
Which is correct if it is not correct, correct it.
Simple or facilitated diffusion requires cellular energy.
Diffusion results in a net flow of solute down a concentration gradient, while active transport works against the concentration gradient.
Secondary active transport uses energy to set up a concentration gradient which then allows some passive diffusion to occur, recapturing some of the energy expended.
Membrane proteins are required for all membrane transport into and out of cells.
membrane proteins are required for all membrane transport into and out of cells
DNA Strand ATT GCG AGT *
ATT is lle GCG is Ala AGT is Ser
AAA is lysine
GCG is alanine
GAU is Aspartic Acid
CAA is Glutamine
CAC is Histidine
UUU is Phenylalamine
C turns into G
A turns into U
T turns into A
GUAC and TCAG charts for future reference
WILL GIVE BRAINLIEST I PROMISE.
Match each word or phrase to the best definition.
1.the breakdown of rock or soil
2.processes that build up Earth's
crust, create new landforms, or
add sediment to existing areas
of land
3.a visual model of the elevation
of geologic features on Earth
4.the transport of weathered
materials from one place to
another by natural forces
5.natural forces lay eroded
sediment down in new places
6. processes that break down
rocks and landforms and carry
sediment away
1. At the time this reporter was in Shishmaref, what should have happened to the sea that
had not yet happened?
Answer:
69
Explanation:
helo
what is meant by kerbs cycle
Answer:
The citric acid cycle – also known as the TCA cycle or the Krebs cycle – is a series of chemical reactions used by all aerobic organisms to release stored energy through the oxidation of acetyl-CoA derived from carbohydrates, fats, and proteins.
Explanation:
hope it helps:)
Answer:
the sequence of reactions by which most living cells generate energy during the process of aerobic respiration.
Biology homework please help
Answer:
muscles
ribs
lungs
bronchioles
alveoli
diffuses
leaves
exchange
Explanation:
Your diaphragm, and muscles between your ribs, make air move in and out of your lungs. It travels through the trachea, bronchi, and bronchioles to alveoli. In the alveoli, oxygen diffuses into the blood and carbon dioxide leaves. This is gas exchange.
Air enters the lungs and leaves it as a result of the relaxation and contraction of the diaphragm and the muscles between the ribs. When both the muscles and the diaphragm relax, air enters from the trachea and travels through the bronchi and the bronchioles to the alveoli, where the oxygen in the air diffuses into the blood and carbon dioxide diffuse in the opposite direction. The entire process is known as gas exchange.
I need help again xO
A shopper walks wesward 2.8 meters and then eastward 9.2 meters. for this motion what is the distanced moved
Which structures are part of the appendicular skeleton?
A
The upper arm (humerus)
The spine (vertebral column)
The ribcage (thoracic cage)
The skull (cranium)
The graph below shows the energy associated with a chemical reaction. The activation energy decreases once a certain type al molecule is added
What type of molecule causes the activation energy to decrease as shown in the graph?
Liquid
protein
nucleic acid
carbohydrate
Answer:
C.
Explanation:
I'm doing it now
The type of molecule that causes the activation energy to decrease is a PROTEIN.
Proteins are biomolecules composed of amino acids linked via peptide bonds.There are two major classes of proteins: structural proteins and enzymatic proteins.Enzymatic proteins catalyze specific chemical reactions by lowering the activation energy.In conclusion, the type of molecule that causes the activation energy to decrease is a PROTEIN.
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A student performs an investigation
to determine if keeping plants in a
greenhouse will reduce the amount
of water lost to evaporation. The
student hypothesizes that if a plant
is in a closed, humid environment,
then less water will be lost to
evaporation. The student places the
plants in beakers of water and then
sets some beakers inside and some
beakers outside of a greenhouse,
She then measures the amount of
water lost from each beaker, Which
table should the student use to
collect the data needed to test her
hypothesis?
Answer:
C
Explanation:
Measure the volume of the water of the plants in and outside. Then note how many days have passed
Table C should be used to collect the data needed to test her hypothesis. Every time the temperature rises, so does the rate of evaporation.
What is evaporation?Water moves from either a liquid form to something like a gaseous state through evaporation. Water boils at a temperature of 100 degrees Celsius, yet it evaporates relatively slowly at 0 degrees. Every time the temperature rises, so does the rate of evaporation.
Depending on the temperature and the quantity of water that has to evaporate, water evaporates at different speeds. Take a desert, for instance, and consider how little evaporation occurs there despite it being quite hot. Table C should be used to collect the data needed to test her hypothesis. When a liquid changes from a liquid to a gas, evaporation occurs. The reaction starts when the liquid's molecules receive energy in the shape of heat.
Therefore, the correct option is option C.
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Selective breeding______.
Answer:
#2
Explanation:
Selective breeding is the process by which humans use animal breeding and plant breeding to selectively develop particular phenotypic traits by choosing which typically animal or plant males and females will sexually reproduce and have offspring together.
help plzzzzzzzzzzzzzzzzzzzzzz
The third answer down.
Answer:
C
Explanation:
hope this helps :)
Match the definition to the concept.
#1. Inflation
#2. Monetary policy
#3. Stagflation
Which chemical weathering processes rely primarily on water? Select the two correct
answers
oxidation
hydrolysis
dissolution
precipitation
Answer:
hydrolysis and dissolution
Chemical weathering frequently involves the presence of water, whether it is in liquid or solid form, hence options B and C are correct.
What is chemical weathering?For instance, water in liquid form can seep into the fissures and cracks of the rock. The water will freeze if the temperature falls far enough, water expands as it freezes. Hydrolysis is a well-known kind of chemical weathering.
Chemical weathering is an erosive process in which chemical processes break down rocks and other materials (predominantly by water and chemicals dissolved within it).
When water comes into touch with rocks, the minerals that make up those rocks break down into individual components.
Therefore, as compounds in rock interact with water during hydrolysis, a new solution (a combination of two or more substances) is created, hence options B and C are correct.
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structure and function
When cells of
join together, they form
obvious, cells
different, tissue
similar, tissue
Answer:
I think it may be b but the question is a little confusing
definition of mitosis
(GIVING BRAINLIEST!!!)
Answer:
farther and shorter
Explanation:
The process of counting a portion of a population of a species in a particular area and using that number to estimate
the total population without physically interacting with the species is called
A restoration
B) mark/recapure
C) bottlenecking
D) sampling
E) arcology
Answer:
I think it's sampling, since mark/recapture involves scientists to have to interact with the animals.
Explanation:
The process of counting a portion of a population of a species in a particular area and using that number to estimate the total population without physically interacting with the species is called sampling. Thus, option D is correct.
What is sampling?Sampling is the process of choosing a portion of a statistical population to estimate attributes of the entire population in statistics, quality control, and survey methods.
Statisticians try to get samples that are typical of the population under consideration. Using samples, one can draw conclusions about populations. Since samples are useful, affordable, practical, and manageable, it is simpler to gather data from them.
Therefore, option D is correct, that sampling is the method of counting a portion of a species' population in a certain location and using that figure to calculate the total population without actually interacting with the species.
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Use the scenario to answer the question.
A student is studying the effect of fertilizer on fruit growth. He uses 6 tomato plants, placing each in a garden where they get equal amounts of sun and water. One plant is given no fertilizer, while the other 5 plants are given 5, 10, 15, 20, and 25 grams of dissolved fertilizer each day for 3 weeks. At the end of the experiment, the tomato fruits are weighed.
What is the dependent variable in this experiment?
(1 point)
sun exposure
fruit weight
amount of fertilizer
amount of water
Answer:
fruit weight
Explanation:
In an experiment, the dependent variable is the variable that responds to the changes made to the independent variable. In other words, the dependent variable, as the name implies, is DEPENDENT on another variable called independent variable. The dependent variable is the variable that is measured or recorded by the experimenter during the experiment.
In this case where a student is studying the effect of fertilizer on fruit growth. He uses 6 tomato plants, which were given different concentrations of fertilizer (independent variable). After the experiment, the weight of the tomato fruit were measured. This means that the FRUIT WEIGHT is the dependent or responding variable.