Why do you pair up the first two electrons?
Explanation:
because of the Pauli exclusion principle
body to rid itself of wastes the normal chemical composition of urine is mostly water but it also includes nitrogenous molecules creatine and other metabolic waste units urine is a solution that can be greater than 95% of water what property of water makes watee so helpful in ridding the body of waste
A.water cohesive forces create surface tension upon its surface
B. Water is a versatile solvent
C. Water is expands upon freezing
D.water has a high specific heat
Answer:
B. Water is a versatile solvent
Explanation:
Water is said to possess certain properties that gives it its unique attribute. These properties make it a vital component of life as it makes certain phenomena possible. According to this question, water, which makes up majority of urine content, aids the excretion of certain wastes such as nitrogenous molecules from the body.
Water is able to aid in this excretory function due to its VERSATILITY AS A SOLVENT. Water is said to dissolve more substances than any other solvent. This allows it to transport dissolved substances including waste products out of the body.
For and experiment to produce useful data what must happen
Answer:
It must be repeated several times
Explanation:
The space within a cell which holds water is:
a) nucleus
b) cytoplasm
c) vacuole
d)chloroplast
Answer:
[tex]\boxed {\tt C. \ Vacuole}[/tex]
Explanation:
Let's analyze each answer choice.
A. Nucleus
Houses the genetic material (DNA) and produces RNAB. Cytoplasm
Fills in space, keeps organelles in place, and chemical reactions occur hereC. Vacuole
Stores substances, isolates toxins, helps with excretionD. Chloroplast
Photosynthesis occurs hereBased on the functions of each organelle, we can assume the best answer is C. Vacuole. Vacuoles store substances, so these organelles would hold water.
A student uses paper towels to clean up a small chemical spill in the lab. Where should the dirty paper towels be placed?
Answer:
The dirty paper towel should be placed in the trash can that is for chemicals and other things that are not healthy for the environment.
When moving up the staircase, which direction will you be moving the decimal? (Metric system work)
Which tenet of the cell theory is being demonstrated by the graph below? A.) cells can never be destroyed B.) cells are the smallest unit of life C.) all living things are made of cells D.) cells come from existing cells
Answer:
The cell theory demonstrated by the graph above is that all cells come from pre existing cells.
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Answer:
OK i sub
Explanation:
how is tertiary structure maintained?
1) via hydrogen bonding between R groups
2) via ionic bonding between R groups
3) via covalent bonding between R groups
4) all of the above
Answer:
All three of these bonds hold the R groups of the amino acids together.
Explanation:
The structures are stabilized by multiple interactions, specifically side chain functional groups which involve hydrogen bonds, salt bridges, covalent disulfide bonds, and hydrophobic interactions.
- Hydrogen bonding
- Salt bridges (ionic bonding)
- Covalent disulfide bonds (Covalent Bonding)
- All in R groups
A yellow cat is crossed with a black cat. You know that the black and yellow fur color traits are carried on the X chromosome and only one X chromosome is expressed in a cell. You observe that half the offspring are calico (patches of black and yellow) and half are black. Your friend Tien tells you that the black cat was the mother, the yellow cat was the father, and all the calico kittens are females. Is he correct? Write out all the possible crosses to test his answer.
Answer:
Tien is correct with his answer that all the calico kittens are females.
The reason and the possible crosses to test the answer are given below
Explanation:
First of all, the coat color in cats is hugely decided by the sex-linked X chromosome in the female. This X chromosome found in cats makes cats exhibit codominant traits. The calico cat is a blend of black and yellow patches. To be considered calico, a cat must carry an allele for the black color and an allele for the yellow color.
The male is no heterozygotes and since the Y- chromosome in the male doesn't affect the result of the coat color in the offspring, there has to be a rare genetic disorder that will result in a calico kitten that is male.
The possible crosses to test his answer:
Cross 1:
If the black cat was the mother her genotype would be: Xb Xb
If the yellow cat was the father his genotype would be: Xy Y
The possible offspring from the cross would result in:
XbXy XbY XbY XbXy ( where XbXy are calico females and XbY are black males)
Cross 2:
If the yellow cat was the mother her genotype would be: Xy Xy
If the black cat was the father his genotype would be: Xb Y
The possible offspring from the cross would result in:
XyXb XyY XyXb XyY (where XbXy are calico females and XyY are the yellow males)
two types of organisms that appear in the climax community are
Answer:
Plants, animals and, fungi.
Explanation:
Through the process of ecological succession in the development of vegetation in an area over time, have reached a steady state.
Have a great day!
Which of the following does not lead to an increase in phytoplankton reproduction?
a.
increased nutrient availability
b.
increased sunlight
c.
increased oxygen levels
d.
increased levels of carbon dioxide
Please select the best answer from the choices provided
A
B
C
D
Answer:
(c) increased oxygen levels
Explanation:
edg 2020
Identify the characteristics of a virus
What happens when self-determination mechanisms break down?
Answer:
When self-determination mechanisms break down it mistakes self-tissue as foreign agents and pathogens. This results is Auto-Immune disease.
HOPE THIS HELPS!
When the self-determination mechanisms break down, the body misinterprets its own tissues as foreign antigens, which activates the autoimmune mechanisms to destroy the body's own cells, mistaking them for foreign factors, this happens mainly in mantle autoimmune diseases.
Autoimmune diseases are a group of diseases in which tissue damage is caused by a humoral or cell-mediated immune response to a person's own antigens.
What are antigens ?In immunology, an antigen (Ag) is a molecule or molecular structure or any foreign particle or pollen grain that can bind to a specific antibody or T-cell receptor. The presence of antigens in the body can trigger an immune response. The term antigen originally referred to a substance that is a generator of antibodies. Antigens can be proteins, peptides (chains of amino acids), polysaccharides (chains of monosaccharides/simple sugars), lipids or nucleic acids. Antigens are recognized by antigen receptors, including antibodies and T-cell receptors.
To learn more about antigens, visit;
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Which is the energy source used to fuel photosynthesis?
Answer:
Sunlight
Explanation:
Sunlight
Why is it good for scientists to be skeptical? ecause
Answer:
Skepticism helps scientists to remain objective when performing scientific inquiry and research.
Explanation:
Solid gold is denser than liquid gold. Do you think the atoms in liquid gold are as closely spaced as are the atoms in solid gold?
True or false adult stem cells are the best option for healing the widest variety of diseases
Answer:
true
Explanation:
Which of the following muscles can you control:
Biceps
Quadriceps
Deltoids
All of the above
Answer:
A. Biceps
Explanation:
Biceps, are voluntary muscles, which means that you can control them.
Quadriceps and Deltoids are both involuntary muscles, so they're controlled by your nerve impulses
Thus the answer, being Biceps
what does evaporation produces?
Answer:
water vapor
Explanation:
A liquid turning into a gas is evaporation. It is how water gets from the surface of the Earth to the atmosphere.
Evaporation plays a significant role in the energy exchange that results in atmospheric motion, affecting weather and climate in the Earth-atmosphere system.
Muscles can contract because they are made of
-afferent neurons
-efferent neurons
-interneurons
-connector neurons
-glial cells
Answer:
effererent neurons signal muscles to contract
Muscles can contract because they are made of efferent neurons.
What are the types of neuron ?Neurons basic microscopic unit of nervous system which is responsible for carrying information to different parts of the body by using electrical and chemical signals and coordinate all of the necessary functions of life.
It has three parts such as Soma or cell body which receives information and contain the cell’s nucleus, Dendrites a thin filament which carry the information from other neurons to the soma, Axon is a long projection that carries information from the soma and sends it to other cells.
Neurons involve in impulse transmission can be presynaptic neuron which emits the nerve impulse and the postsynaptic neuron receives this impulse.
Neurons can be Sensory neurons which carry the information from the sensory organs like skin, eyes, ears, nose and Motor neurons, Interneurons form a bridge between two neurons.
Learn more about neuron , here:
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Identify the following.
pistil
1 female part
2 neither male nor female part
3 male part
Which option identifies ways that people positively affect Earth's resources?
A. Use cars that emit fewer harmful gases, build dams, and stop using all resourcees
B. Stop using all resources, increase mining efforts, and halt the runoff of factory waste into rivers and streams
C. Build dams, use cars that emit fewer harmful gases, and hat the runoff of factory waste into rivers and streams
D. Increase mining efforts, build dams, and use cars that emit fewer harmful gases
Please Help!!
Answer:
ANSWER IS C
Explanation:
The way by which people positively affect the earth's resources is to build dams, use cars that emit fewer harmful gases, and hat the runoff of factory waste into rivers and streams. So, the correct option is C.
What are Earth's resources?The Earth's resources are referred to as natural resources that are useful raw materials for the manufacturing and production of goods. They occur naturally, meaning that man cannot make them but instead use and modify the resources in ways that are beneficial. Examples include air, water, soil, minerals, fuels, plants, and animals.
Natural resources are not finite but by human activities, such earth's resources become poisonous day by day for our health such as air, water, and soil. So, it's time to beware and spread the message to affect earth's resources positively.
Therefore, the way by which people positively affect the earth's resources is to build dams, use cars that emit fewer harmful gases, and hat the runoff of factory waste into rivers and streams.
To learn more about Earth's resources, refer to the link:
https://brainly.com/question/253016
If you are standing on a beach, why might you feel an ocean breeze during the day?
Answer:
cause at night it's so cold especially where I stay
Betty drew the lifecycle of a butterfly for A science exhibition. The lifecycle showed the various stages of growth before the egg turns into a butterfly. What type of model did Betty use?
Was it hypothetical, conceptual, mathematical, or physical
Type the complementary sequence to the following nucleic acid:
TAAGGC
Answer:
The ATTCCG
Explanation:
A and T are friends so when you get a sequence like TTA you change it to AAT
And C and G and friends so if you get CCG turn it to GGC
neurons are brain cells. where would new neuron come from
A bacteria
B non-living matter
C other cells
D food
Answer:
The answer is C!
Explanation:
Filipino po, pa help po plssss need lang po
Answer:
1. Basket
2. Batya
3. Damit
4. Saranggola
5. Ballpen
di ako sure sa una at pang lima pero sabi ni ate tama naman daw :))
A machine has an efficiency of 80%. How much work must be done on the machine so to make it do 50,000 J of
output work?
12,500 J
40,000 J
62,500 J
90,000 J
Answer:
62,500 J
Explanation:
50,000/0.8=62,500
Answer:
62,500
Explanation:
What types of gases do you find in the atmosphere?
Answer:
Nitrogen — 78 percent
Oxygen — 21 percent
Argon — 0.93 percent
Carbon dioxide — 0.04 percent
Trace amounts of neon, helium, methane, krypton and hydrogen, as well as water vapor
