Answer:
14
Explanation:
if there is no number behind the element, it counts as one, but if there is, you do 1 times x(whatever the exponent is) and thats how many that one element counts for with atoms. then you just add them all up
What type of chart is used to help organize study and predict genetic inheritance?
(16.5 Points)
Punnett square
flow chart
graph
diagram
Which statement is true about DNA?
Group of answer choices
. DNA contains genes that hold specific traits for an organism.
Organisms create their own DNA sequence that is not like their parents.
DNA is an exact copy from parent to offspring.
DNA is not necessary for an organism to reproduce.
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Scientific knowledge results from the interaction of scientists who are investigating natural phenomena. Which of these BEST describes how a scientific explanation becomes widely accepted? pls help due tonight
Answer:
A scientific theory is a broad explanation that is widely accepted because it is supported by a great deal of evidence. Examples of theories in physical science include Dalton's atomic theory, Einstein's theory of gravity, and the kinetic theory of matter.
I hope this helps a little bit.
Answer: A hypothesis is tested repeatedly and the results are confirmed with evidence
and debated by the scientific community
Explanation:
A model of tin, an element with the atomic number 50, is shown here. The valence electrons are modeled here in this image. Which statements are supported by the information in the model? Select ALL That apply.
A) Tin needs four more electrons to complete its outer shell.
B) Tin has no neutrons in the nucleus, as is shown in the model.
C) Tin is highly reactive because it only has four valence electrons.
D) Tin is negatively charged because it more electrons than protons.
E) Tin has a low reactivity because it has full inner shells of electrons.
Answer: A and C
Explanation:
According to the electronic configuration, tin needs 4 more electrons to complete its outer shell.
What is electronic configuration?Electronic configuration is defined as the distribution of electrons which are present in an atom or molecule in atomic or molecular orbitals.It describes how each electron moves independently in an orbital.
Knowledge of electronic configuration is necessary for understanding the structure of periodic table.It helps in understanding the chemical properties of elements.
Elements undergo chemical reactions in order to achieve stability. Main group elements obey the octet rule in their electronic configuration while the transition elements follow the 18 electron rule. Noble elements have valence shell complete in ground state and hence are said to be stable.
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True/False: The climate of an area has direct impact on the plants and animals that live there.
Answer: Hewo, there! your answer is Below
True would be the correct answer
Explanation:
Humans and wild animals face new challenges for survival because of climate change. More frequent and intense drought, storms, heat waves, rising sea levels, melting glaciers and warming oceans can directly harm animals, destroy the places they live, and wreak havoc on people's livelihoods and communities.
Hope this helps you!!!
Have a great day!!!
Answer: True
Explanation: If something is more hot it's more likely to have less vegetation. If something is mild it's more likely to have vegetation and animals that live in that kind of weather same for rainy vegetation.
What causes change to ecosystems and when changes to the living or nonliving things occur, what is the impact on the populations of that ecosystem?
(please write 2-3 sentences)
Answer:
Important direct drivers include habitat change, climate change, invasive species, overexploitation, and pollution. Most of the direct drivers of degradation in ecosystems and biodiversity currently remain constant or are growing in intensity in most ecosystems
Explanation:
Important direct drivers include habitat change, climate change, invasive species, overexploitation, and pollution. Most of the direct drivers of degradation in ecosystems and biodiversity currently remain constant or are growing in intensity in most ecosystems
what three-letter code tells that the protein is complete?
Answer:
here we have UGA as the stop codon, the other codons are UAG & UAA. It's the portion of the instructions (our RNA) that tells us that the protein strand production stops there.
PLEASE HELP MEEE I WILL MARK BRAINLIST FOR THIS ITS SUPER SIMPLE....BUT U MUST TYPE EVERYTHING
all I need you to do its to type out these pictures word for word it pretty simple
Answer:
in 1988, a forest fire destroyed much of yellowstone park.This photo, taken 17 years later,show that the forest is gradually growing back, small grasses first grew here and are now being replaced by small trees and shrubs, this is an example of the later stages of secondary succession.
The early stages of succession after a forest fire are shown in these pictures. taken four years after the fire. they show the charred remains of the original forest as well as the small grasses and shrubs that are beginning to throw in the back area.
During a volcanic eruption,molten lava flows over the ground and into the water. after the eruption is over the lava cools and hardens into bare rock.
lichen spores carried on the wind settle on the rock and creat soil. linchens add nutrients to the soil as they die and decay.
Ecosystems are "dynamic". this means that the ecosystem change
over time.
during the ice ages , glaciers once covered areas that are tropical rainforests today. both natural forces and human actions cause ecosystem to change
if there is a big ecosystem change caused by natrual forces or human actions , the plants and animals that live there might be destroyed. or they may be foreced to leave.
over time a new community will develop and then that community may be replaced by another.
primary succession is the type of eological succession that happens on new lands, lands where life has not yet been existed. primary succession can take place after lava flow cools and hardens into new land or glacier recedes exposing new land.
secondary succession is the type of succession happens after something destroys the habitat, such as a flood or other natrual disaster. abandoning a field that was once used for agriculture can also lead secondary successionn
Ways to help our environment- please make it specific and explaining what to do and how to do it
Answer:
Some ways to help out society is to do things that benefit the world such as let's say community service. To be more specific community service is when everyday citizens of the society decide to do voluntary work in order to help people and or the environment. Some examples could be walking kids home from school, picking up trash on the ground, and fostering a shelter animal.You can do this by gathering people who agree with helping the earth and trying to make it a better place or even starting off little such as giving nice stuff that you don't need or use to the people who do need it such as the homeless shelter...
Explanation:
Florida panthers can have straight tails (S) or curly tails (s). What is the probability that two heterozygous panthers will have offspring with curly tails?
Group of answer choices
75%
25%
100%
50%
Answer:
25%
Explanation:
not 100% sure but you should give this answer a shot
Answer:
It should be 25%, IF both parents are Ss.
Explanation:
I can't remember exactly what heterozygous means, but the definition i saw said it was one of each, so the recessive gene has a 25% chance
your alien friend from planet xenon is visiting and wants to learn how to breed pea plants you show your friend a recent batch of pea plants with purple flowers that you grew by crossing plants that had purple flowers with plants that had white flowers your friend is confused as to why your plants all have purple flowers how would you explain in the simplest way possible what happened
Answer:
The purple flowers were probably was dominate allel and the white flowers were recessive.
Explanation:
Why do the constellations we see change when the seasons change?
Answer:
caused by Earth's orbit around our Sun
Explanation:
:)
In humans, a widow’s peak hairline is determined by the dominant allele (W), and a straight hairline is determined by the recessive allele (w). If a male is heterozygous for a widow's peak and a female has a straight hairline, what is the probability they will have a child with a straight hairline?
pls help due tonight
100%
50%
25%
75%
Answer:
75%
I hope this helps a little bit.
Which 2 minerals can be scratched by a diamond but not a quartz?
Answer:
Topaz, and Corundum.
Explanation:
These 2 are harder than a quartz mineral so quartz can't scratch them. But weaker than a diamond, so diamonds can scratch them.
True or False?
Density of ocean water is not affected by salinity (salt content).
Answer:
false
Explanation:
Answer: yes it its true.
Explanation: I just see that in a exam
here is my question..
Answer:
3.0
Explanation:
a. Convert the following Fahrenheit temperatures to Celsius (you may use a calculator):
98.6°F (normal body temperature)
68°F (room temperature)
20°F (a cold day)
b. Convert the following Celsius temperatures to Fahrenheit:
10°C
30°C
-40°C (that’s cold!)
Answer:
37C
20C
-6.67C
50F
86F
-40F
Explanation:
Iris is a farmer who has two fields. Field 1 is near the ocean and Field 2 is far inland. Iris is planting almonds, which require a lot of precipitation. Which field should Iris plant her almonds in?
Field 1, because the closer an area is to a body of water, the more precipitation there is.
Field 2, since inland areas are warmer, which causes greater amounts of precipitation.
Field 2, because the more inland an area is, the more precipitation there will be.
Iris could plant the almonds anywhere since the location of the fields does not affect precipitation.
Answer:
I think it is Option 3: Field 2, because the more inland an area is, the more precipitation there will be.
Explanation:
Whenever it rains, the water evaporates FROM the ocean and the wind blows clouds more towards inland, and it does rain more inland
Answer:
A
Explanation:
There is more moisture near an area that is close to a body of water which causes humidity, which results in precipitation.
So sorry, if I'm incorrect! Good luck with your assessment :)
(a) What human activity is responsible for the formation of smog and acid rain? (b) What kinds of harm does photochemical smog cause? (c) Do you think that photochemical smog levels are high during the winter or during the summer? Explain.
Answer:
c? i think
Explanation:
A 4-inch, f/5 telescope has a 1-inch eyepiece focal. Its magnifying power is:
4X
5X
9x
20x
Its magnifying power is: 4X 5X 9X 20X. A 4-inch, f/5 telescope has a 1-inch eyepiece focal. Its magnifying power is 9x. This answer has been confirmed as correct and helpful.
20x
explanation? I dont need to give one
11 Which is a bright streak of light in Earth's atmosphere?
A. a comet
B. a meteor
C. a meteorite
D. a meteoroid
Answer:
B. a meteor
Explanation:
Meteors, also known as shooting stars, are pieces of dust and debris from space that burn up in Earth's atmosphere, where they can create bright streaks across the night sky.
Hope this helped!!!
Identical rock types, identical fossils, and very similar mountain ranges are found on different continents that are separated by a wide ocean. Which of these best explains these observations?
Describe the continental crust. NO LINKS NO FAKE ANSWERS I NEED THIS ASAP
Answer:The continental crust is the outermost layer of earths atmosphere that makes the plate continents and continental shelves.
Explanation:
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Which of the following regions does not experience seasons: Tropic of Cancer, Equator, or Artic?
Write an explanation below using observations from the simulator found at the following link, to justify your answer.
https://www.khanacademy.org/science/cosmology-and-astronomy/earth-history-topic/earth-title-topic/pi/season-simulator
Answer:
Equator and Arctic because equator is too hot and arctic is too cold. In equator the rays of the sun fall directly all over the year and this is why the [people living there experience a harsh hot weather and high temperatures. On the other hand people living in the Arctic region experience extreme cold because very little sunlight reaches there. Temperatures are freezing cold all over the year.
plz mark me as brainliest.
Answer:
The arctic does not suffer any seasons as it is furthest from the equator and therefore is covered in ice snow and rarely sees sunlight. Therefore the arctic does not have summer autumn or spring. The arctic is so cold that not many trees can survive and the ones that do are usually chopped down to build houses for the people who live there. The arctic is home to one of the worlds largest seed banks that is there in case of a really bad emergency where the farmers crops in another country are not growing.
Explanation:
which strand of the DNA molecule A or B was used to produce the messenger RNA?
Answer:
Strand A
Explanation:
Why is it strand A when it looks exactly like strand B? During transcription, a strand of RNA is made that compliments the DNA. Meaning they don't exactly match but they're the partner nucleic acid. These are the instructions that tell what protein to make.
What is Acid ?
please don't report , don't give link and give the correct answer .
Answer:
An acid is a molecule or ion capable of donating a proton, or, alternatively, capable of forming a covalent bond with an electron pair. The first category of acids are the proton donors, or Brønsted–Lowry acids.
Answer:
Below in Bold
✧ [tex] \underline{ \underline{ \red{ \large{ \tt{E \: X \: P \: L \: A \: N \: A \: T \: I \: O \: N}}}} }: [/tex]
♨ The word ' acid ' is derived from the Latin word ' acidus ' which means sour. An acid is defined as the substance which gives hydrogen ions or protons ( H+ ) when dissolved in water. For example :
Hydrochloric acid Sulphuric acid Nitric acid Carbonic acid Acetic acid✎ [tex] \underline{ \underline{ \purple{ \large{ \tt{Extra \: Info}}}}} : [/tex]
☃ Physical properties :
Acids have a sour taste. But some acids like steric acid, boric acid , salisylic acid do not have a sour taste. Laboratory acids are more corrosive , so they are dangerous to taste.Acid turn blue colour of litmus paper into red and light yellow methyl orange into red. They make phenolphthalein colourless.☂ Chemical properties :
Acids have a high dissolving power and dissolve many substances. Some metals like zinc and magnesium react with acids like dilute sulphuric acid and dilute hydrochloric acid to produce salt and hydrogen gas.Acid react with base to give salt and water.Acid gives H+ ions when dissolved in water.Acid react with metallic carbonates to produce carbon dioxide.☼ Hope I helped! ♡
Have a wonderful day / night ! ツ
☥ [tex] \underbrace{ \overbrace{ \mathfrak{Carry \:On \: Learning}}}[/tex]
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Why would carbon dating not be a useful way to date a fossil of Coelophysis?
Answer:
Carbon dating cannot be used on most fossils, not only because they are almost always too old, but also because they rarely contain the original carbon of the organism. Also, many fossils are contaminated with carbon from the environment during collection or preservation proceedures.
Explanation:
Carbon dating can not be a useful way to date a fossil of Coelophysis because carbon has a short half life.
Carbon dating and it's usesCarbon dating, which is also called radiocarbon dating, is defined as the method used to determine the age of an object containing organic material with the use of isotope of carbon.
Carbon is used and absorbed by living organism including radioactive carbon-14. When they die, the radioactive carbon that they've accumulated continues to decay.
Because of the short length of the carbon-14 half-life, carbon dating is only accurate for items that are thousands to tens of thousands of years old. Fossil of Coelophysis are much older than this. Geologists must therefore use elements with longer half-lives.
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Anyone know what to do for Punnett Squares?
Answer:
A. 75% B. 25%
Explanation:
heterozygous= having two different alleles of a particular gene (Ss)
S s
S SS Ss
s sS ss
A. SS, Ss, sS will have spikes on the tail => 3/4 = 75%
B. ss will have hammer tails => 1/4 = 25%
Based on the pedigree, how many offspring from this cross had the recessive phenotype?
(17 Points)
one
two
three
five
Answer:
two
Explanation: