1 18
2 26
3 7
4 same number of electrons
5 Si Te Sb B Ge Po As
6 metalloids
7 Shiny, brittle, solids, good electrical conductors
8 group1 except for hydrogen
9 lustrous, malleable, ductile, good conductors of heat and electricity
10Alkali metals
11 High reactive metals.
Not found freely in nature.
Stored in a mineral oil solution.
Low melting points.
12 noble gases
13 Group 2A
14 have two valence electrons or the electrons furthest from the nucleus,
15 Halogen
16 Melting and Boiling Points (increases down the group)
Atomic Radius (increases down the group)
Ionization Energy (decreases down the group)
Electronegativity (decreases down the group)
17 noble gases
18Noble gases are colorless, odorless, tasteless, and nonflammable gases under standard conditions.
In the periodic table, the noble gases are arranged according to their boiling point.
19 are adding more protons and neutrons to the nuclei.
20 left of the staircase created by B, SI Ge, As, Sb, Te (metalloids), are all metals right are non-metals. Next the atomic number and therefore the proton number increase as you move from left to right B - 5, C - 6, N -7.
why is the skin known to be the body's most important nonspecific defense ?
Answer:
Explanation:
The body's most important nonspecific defense is the skin, because it acts as a physical barrier to keep pathogens out. Even openings in the skin (such as the mouth and eyes) are protected by saliva, mucus, and tears, which contain an enzyme that breaks down bacterial cell walls.
What type of cells have a high concentration of mitochondria?
Answer:
It is important to point out that muscle cells have a very high concentration of mitochondria that produce ATP. Your muscle cells need a lot of energy to keep your body moving. When your cells don't get enough oxygen, they do not make a lot of ATP.
Explanation:
Muscle cells have a high concentration of mitochondria.
Regulation of metabolic enzymes in skeletal muscle occurs in response to changes in ATP demand, substrate availability, and in response to hormonal and neural stimulation.
The muscle fiber is an elongated cell whose length can reach several centimeters.
The sarcoplasm of a muscle fiber contains many mitochondria.
They are those that produce energy (ATP) directly usable by the muscle fiber to contract its myofibrils, which are the contractile elements of skeletal muscle cells.
Therefore, we can conclude that adenosine triphosphate (ATP) is the basic source of energy for muscle contraction is ATP and muscle cells have a high concentration of mitochondria.
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WILL MARK BRAINLIEST IF CORRECT HELP FAST PLEASE!!!! List the 3 soil particles, their sizes, and textures.
Answer:
sand-largest, gritty
silt-medium, flour consisteny
clay-smallest, small grains
(this is what I had for my science class)
was the first scientist to observe cells using a microscope,
Answer:
Robert Hooke
I hope this helps you :)
Roobert Hooke first scientist to observe cells using a microscope.
Thus, Microscope: a device that magnifies small objects, giving the user a close-up view of minuscule structures at a scale suitable for observation and analysis.
Even though optical microscopes are the focus of this article, an image can also be magnified by a variety of different wave types, such as acoustic, X-ray, or electron beams, and is then captured using direct or digital imaging, or a combination of these techniques.
The microscope can produce a static image, similar to a traditional scanning electron microscope, or a dynamic image, like traditional optical devices.
Thus, Roobert Hooke first scientist to observe cells using a microscope.
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what is the basic building block of all living things ?
Answer:
Cells are the basic building blocks of living things.
Explanation:
The human body is composed of trillions of cells, all with their own specialized function.
Answer:
cells
Explanation:
Which of the following systems does not play a role in maintaining your blood sugar levels?
a. digestive system
b. circulatory system
c. skeletal system
d. endocrine system (Involved in releasing hormones)
Answer:
C: Skeletal system
The digestive system, circulatory system, and endocrine system are all involved in maintaining your blood sugar levels.
Explanation:
Andrea wants to measure how far each of her classmates can throw a heavy ball
I need a picture gurlii to answer
answer:
i truly want to help you but i can't! aghhh there is no pic :( sorry
Why are viruses known as parasitic?
Answer:
Explanation:
All viruses are obligate parasites; that is, they lack metabolic machinery of their own to generate energy or to synthesize proteins, so they depend on host cells to carry out these vital functions.
What happens to matter in an ecosystem
Answer:
I hope this helps hun :)
Explanation:
Matter is recycled in ecosystems. Any non living matter that living things need is called a nutrient. Decomposers release nutrients when they break down dead organisms.
How do rthe functions of fat and enzymes different
Answer:
Fats are storage molecules, while enzymes are catalytic molecules. ... The body does not have all the amino acids needed to make proteins.
Explanation:
In speaking of enzymes, a fly's enzymes are probably acidic.
What how are the functions of organelles similar to organs? Give 1 example.
Where does the H+ come from that makes ATP synthase work?
Answer: Electron Transport Chain
Explanation: The H+ used by ATP synthase comes from the ETC.
Answer:Electron transport chain
Explanation: I just did the work
I need help with this biology on the behavior of light.!
Answer:
A. Transmission
B. Reflection
C. Refraction
D. Diffraction
E. Absorption
F. Scattering
Answer:
A. Transmission of light
B. Reflection of light
C. Refraction of light
D. Diffraction of light
C. Absorption of light
D. Scattering
How many protons does the atom of your element have?
Answer:
2.1 Electrons, Protons, Neutrons, and Atoms.
Explanation:
4. What are three indicators of a chemical
change?
Answer:
Gas bubbles, color changes, production of light, volume change, or a change in smell or taste (p.s, don't lick the science).
Unlike green bacteria that produce oxygen, the purple bacteria performed a type of photosynthesis that produced sulfur. If the purple bacteria had outlived the green bacteria, how would Earth’s atmosphere be different today?
Answer:
Explanation:
About 21% of Earth's atmosphere is oxygen, and most of the rest is nitrogen. ... the evolution of Cyanobacteria, a group of single-celled, blue-green bacteria. ... Today, Cyanobacteria can be found almost everywhere on Earth — likely right ... the genetic machinery for photosynthesis that we'd expect to see if they had lost this ...
Answer:
The atmosphere would be rich in sulfur instead of oxygen.
Explanation:
It's the sample answer it's right.
Do you think that it is important that we understand more about Prochlorococcus?
Answer:
despite prochlorococcus being on of the smallest type of marine phytoplankton/bacteria in the worlds ocean its substantial number makes it responsible for a major part of the oceans and the worlds photosynthesis and oxygen production
hope this helps✌
Compare the size and shape of an animal to one or more objects
What kind of animal? And what minimum
Which Image is correctly labeled prokaryotic cell? A: Image 1. B: Image 2. C: Image 3.
D: Image 4.
Answer:
Image 3
Explanation:
Prokaryotic cells are single-celled organisms that lack membrane-bound organelles, including a defined nucleus.
The only cell without membrane-bound organelles is image 3
Image 1 is a single-celled eukaryotic organism, probably a paramecium.
Image 2 is a plant cell (has a cell wall)
Image 3 is a bacterium
Image 4 is an animal cell
1) What is the proper way to carry a microscope? 2) What is the typical magnification of an ocular lens? What other magnifications are possible? 3) What are the magnification abilities of each of the objective lenses? What is the total magnification with each objective? a) Scanning (small lens), red ring = b) Low-power (medium lens), yellow ring = c) High-power (large lens), blue ring = d) Oil immersion (largest lens), white ring = 4) Why do you use immersion oil with 100% objective lens? 5) What is the total magnification of a sample with an ocular lens power of 15X and using a 40X objective lens? 6) What is a diaphragm? What does it do?
the objective and ocular lenses are responsible for magnifying the image.
so for 10x objective and 10x ocular
total magnification= 10x10= 100x(this means that the image being viewed will appear to be 100 times its actual size)
a)scanning(small lens),red ring=4x or 5x
b)low power (medium lens), yellow ring = 10x
c) high power (large lens),blue ring = 40x
d)oil immersion (largest lens),white ring = 100-250x
4.immersion oil helps to focus on lighting
5. total magnification=15x40 =600x
6. diaphragm controls the amount of light reaching the specimen.
They control both the focus and quantity of light applied to the specimen.
What is respiration?
Answer:
Respiration is the act of respiring; inhalation and exhalation of air; breathing. the sum total of the physical and chemical processes in an organism by which oxygen is conveyed to tissues and cells, and the oxidation products, carbon dioxide and water, are given off.
in other words
a process in living organisms involving the production of energy, typically with the intake of oxygen and the release of carbon dioxide from the oxidation of complex organic substances.
which type of reproduction produces offspring with better characteristics ?
Answer:
Explanation:
Sexual reproduction is the best type of reproduction in which the offspring's have better characteristics and are able to cope up with the environment.
Why is diversity important IN BIOLOGY?
Answer:
BECAUSE yeehaw new chaatatattatat
Explanation:
Answer:
It leads to healthy ecosystems, and increases its productivity.
What atoms can be found in all carbon based molecules
Answer:Hydrogen,Oxygen,Nitrogen and sulfur hope this helps
Explanation:
can an element be broken down
Answer:
Elements cannot be broken down into a simpler substance. Likewise, one element cannot be chemically converted into a different element. Chemical elements are the simplest of substances.
Explanation:
i just said this in the comments
2 A photograph shows a beetle 80 mm long. The magnification of the photograph is x 4. Calculate the real size of the beetle. (Remember to include the unit with your answer.)
A bactrium was discovered in several hot springs.The temperature if the spring can range from 50 to 80 Celsius.Scientist investigate and enzyme from this bacterium.They set up the data table shown to record the result.what is a reasonable hypothesis for this study?
Answer: d
Explanation:
The answer is d
A researcher wanted to know if attractive people are more likely to receive help when in need, compared to unattractive people. if the investigator randomly assigned participants to groups that involved an attractive confederate versus an unattractive confederate, such a study would involve 'imdependent' variable.
What is the factor on which physical activities depend?Physically attractive defendants will receive shorter prison sentences than physically unattractive defendants. In an experiment, the hypothesis is an assumption that the researcher makes and that will be tested during the execution of the experiment. This assumption is created from the researcher's observation about a certain situation or element.
In the case of the experiment presented in the question above, we can see that the researcher observed that physically attractive or unattractive defendants have different sentences after the trial. From this, this researcher created a hypothesis, he assumed, that physically attractive defendants will receive lower sentences than defendants who are not physically attractive.
Therefore, A researcher wanted to know if attractive people are more likely to receive help when in need, compared to unattractive people. if the investigator randomly assigned participants to groups that involved an attractive confederate versus an unattractive confederate, such a study would involve 'imdependent' variable.
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What is a source of large molecules that are needed for life? (4 letter word ONLY)
Answer:
Bio M
HERE YOU GOOOOO
Ecology webquest
1) Explain how the last food chain represents a full circle of life.
2) Diagram the water cycle
3) Write three to five sentences describing what you learned:
Answer:
1) At each link in the chain, energy is being transferred from one animal to another. ... So food chains make a full circle, and energy is passed from plant to animal to animal to decomposer and back to plant! There can be many links in food chains but not TOO many
2) Collection.Evaperation .Condesation. Precipitation
Please help I do not know the answer to this question
Answer:
A
Explanation:
Mitochondria have an important role in cellular respiration through the production of ATP, using chemical energy found in glucose and other nutrients. Mitochondria are also responsible for generating clusters of iron and sulfur, which are important cofactors of many enzymes.