what is a hypothesis
Answer:
a suggested sollution or a guess to an information given to you
What would the molecular formula be for the following? For each answer, state what kind of bonds hold the molecule together (ionic, polar-covalent, or non-polar covalent)
a. Flourine reacting with sodium
b. Oxygen reacting with carbon
c. Nitrogen reacting with hydrogen
d. Silicon reacting with hydrogen
e. Sulfur reacting with hydrogen
f. Magnesium reacting with oxygen
Answer:
Explanation:
A. sodium fluoride = NaF = ionic bond
B. carbon dioxide = CO2 = polar covalent bond
C. hydrogen nitrate = 2NH3 = ionic bond
D. silicon hydride = Si nH 2n+2 = polar covalent bond (i think.. could be non-polar but definitely not ionic)
E. hydrogen sulfide = H2S = non-polar covalent bond
F. magnesium oxide = MgO = ionic bond
hope this helps! :)
Why does type 2 diabetes result in high blood pressure? HELP PLS!!
How have human activities effected the air in earth’s atmosphere?
Answer:
Human activities have had a negative impact on Earth's atmosphere.
Explanation:
Human activities, since the Industrial Revolution, have gradually been having more and more influence on Earth's atmosphere. As more and more the economies have developed, the bigger and bigger the output of gases into the atmosphere. The gases that are released into the atmosphere are mostly greenhouse gases, but there are also some that are highly toxic.
This has contributed to a sharp increase in CO2 levels in the atmosphere, which is speeding up the process of global warming, and that can have devastating consequences for life on Earth. Also, some of these gases managed to cause huge damage to the ozone layer, the layer that protects us from UV radiation, and if the ozone is gone, every complex organism will be gone as well.
is bacteria living or non living? Explain why
Answer:
It is living
Explanation:
Bacteria reproduces and consumes energy just like all other living things.
Which statement best describes the role of the nucleus in a cell?
The gate at a factory keeps out unwanted cars.
The elevator at a factory moves materials around the building.
The boss at a factory gives out orders and directions.
The boxes at a factory are used to ship materials to customers.
While studying the pollination patterns of bees, Marsha noticed that there were flowers that the bees in her area seemed to visit more frequently than others. The following table shows the flowers that 100 bees visited during a specific time period.
Flower Flower Color Number of Bees
sunflower yellow 32
daisy white 50
petunia purple 18
Marsha claims that the bees frequented the daisies the most because they are attracted to the color of the flower.
What is a reasonable alternate conclusion that can be drawn from Marsha's data?
a. Bees frequented the daisies the most because bees are unable see the color white.
b. Bees frequented the daisies the most because daisy pollen has an odor that is attractive to bees.
c. Bees frequented the daisies the most because they are most attracted to the color yellow.
d. All of these
Answer:
B
Explanation:
The only reasonable alternate conclusion that can be drawn from Masha's data is that the bees frequented the daisies the most because daisy pollen has an odor that is attractive to bees.
The conclusion is the only one that suggested an alternate reason that is compatible with the trend observed in the data.
Concluding that the bees frequented the daisies because they are unable to see the color white is erroneous because the bees could not have visited the daisies without the ability to see color white. If the bees were also most attracted to the color yellow, they should have visited the sunflower the most.
The correct option is B.
Answer:
B. Bees frequented the daisies the most because daisy pollen has an odor that is attractive to bees.
Explanation:
Scientists have differing opinions and interpretations when it comes to producing results for experiments. This creates the variety in science that springs up new investigations and experiments.
Marsha claimed that bees frequented the daisies because they are attracted to the color of the flower. An alternate explanation for why bees frequented daisies could be because daisy pollen has an odor that is attractive to bees.
Since daisies are white, it does not make sense to say that bees cannot see the color white. The explanation that bees frequented the daisies the most because they prefer the color yellow also is not reasonable because they would likely have visited the sunflowers the most if this were the case.
What is the role of Golgi apparatus for tagging of proteins.
Answer:The Golgi also has important functions in tagging vesicles with proteins and sugar molecules, which serve as identifiers for the vesicles so they can be delivered to the proper target. The organelle is also called the Golgi complex or Golgi body.
In the protein synthesis STEM case, which of the following mutations/errors created
a nonfunctional ADA enzyme (protein) which in turn caused deoxyadenosine to build
up?
A. tRNA error
B. Premature stop codon mutation
C. Active site mutation
Answer:
B. Premature stop codon mutation
Explanation:
9. All bacteria are _____________________.
Answer:
All bacteria can evolve by selection on changes to their genetic material DNA caused by genetic recombination or mutations. Mutations come from errors made during the replication of DNA or from exposure to mutagens.
Explanation:
I WANT A BRANLIEST TYYY!!
Which of the following best describes a
community?
Crabs on the seafloor
Sharks, shrimp, clown fish, anemones on coral reef
Sea turtles in a part of the Atlantic
Sunflowers on a hill
Community, also called biological community, in biology, an interacting group of various species in a common location. For example, a forest of trees and undergrowth plants, inhabited by animals and rooted in soil containing bacteria and fungi, constitutes a biological community.
Coral reef
Sharks, shrimp, clown fish, and anemones on coral reefs. Therefore option B is correct.
A community in ecology refers to a group of interacting organisms living in the same habitat and having functional relationships with one another.
In this case, option B best describes a community as it involves various species (sharks, shrimp, clownfish, anemones) living together in a coral reef ecosystem.
These species depend on each other for survival, such as the clown fish finding protection in the anemones and the shrimp serving as a cleaning service for the reef.
Their interactions create a complex and interdependent web of life, contributing to the overall health and stability of the coral reef ecosystem.
Know more about coral reefs:
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Why is understanding the niche of tree species important in forest management?
A)
It helps determine what kind of fertilizer is needed.
B)
It helps determine where the trees can be best planted or cultivated.
C)
It helps determine the type of organisms that use it as a habitat.
D)
It helps determine what kind of weather will affect it.
Answer:
B
Explanation:
Edge 2020-2021
Is an ionic bond more like a polar covalent bond or a non-polar covalent bond? Explain
Answer:
POLAR
Explanation:
The formation of an ionic bond is the result of the transfer of one or more electrons from a metal onto a non-metal.
Non-polar is an equal sharing of electrons, whereas polar is an unequal sharing of electrons.
Ionic bonding is on one extreme with a complete transfer of electrons forming charged ions. Non-polar covalent bonding with equal sharing of electrons is at the other extreme.
Even though ionic bonding is kinda in the middle, it leans more towards polar because they aren't two opposite extremes.
hope this helps ! :)
By which process does carbon dioxide enter a plant?
Answer:
Photosynthesis
Explanation:
Plants get the carbon dioxide they need from the air through their leaves. It moves by diffusion through small holes in the underside of the leaf called stomata . Guard cells control the size of the stomata so that the leaf does not lose too much water in hot, windy or dry conditions.
During Prophase I replicated homologous chromosomes pair up and undergo synapsis. What testable question is generated regarding synapsis and genetic variability by Figure 1?
A. Is the distance between two gene loci related to crossover rate?
B. Does crossing over occur more often in some chromosomes than in others?
C. Is crossing over inhibited by methylation? D. Is crossing over promoted by methylation?
Answer: A
Explanation: I saw it on quizlet
Digestion of dietary fats
If the United States removed state governments, which of the following would be the closest to the new type of government? federal
confederation
unitary
democratic
Answer:
Explanation:
Democratic I would think So D.
Which organelles must work together to provide food and energy to a
plant cell?
where do we find the most gases in the atmosphere.
Answer: The most gas in the atmosphere is nitrogen, with oxygen second. Argon, an inert gas, is the third most abundant gas in the atmosphere.
Where are most gases found in the atmosphere?
Earth's atmosphere is composed of about 78% nitrogen, 21% oxygen, and one percent other gases. These gases are found in layers (troposphere, stratosphere, mesosphere, thermosphere, and exosphere) defined by unique features such as temperature and pressure.
(Please give brainiest :) I'm trying to reach my goal) Hope this helped :)
Explanation:
Refer to the experimental set-up above. What is the purpose of the overturned bucket (note it is solid, not clear) in part A?
Answer:
The bucket is taking in oxygen which makes the water inside the hot and thermometer solid its not clear because its taking in energy.
Answer:
hhahahha i need my points on my alt account
Explanation:
Explain the importance of plants
(Please use 3-6 sentences)
(Worth a lot of points)
Match each digestive Juice or enzyme to the organ where it performs.
Explanation:
hope it helps
mark me brainliest please
An animal leaves its footprint in wet mud, and later, when the mud dries, the footprint can be filled with plaster. When the plaster hardens, it has
same shape as the foot of the animal. The plaster cast could then be used to make new footprints in soft mud identical to those made by the animal. The
process of using the plaster cast to make new footprints most accurately models
translation of mRNA codons to form a protein.
transcription of mRNA from the original DNA code.
insertion of nucleotides into the mRNA codons
deletion of nucleotides from the tRNA anticodons.
Answer:
The process of using the plaster cast to make new footprints most accurately models transcription of mRNA from the original DNA code
Explanation:
Transcription is a process in protein synthesis that takes place in the nucleus. During transcription, the DNA of a gene is used as a template to make an RNA molecule. In the process, nucleotide bases which are complementary to those found in the DNA molecule pairs with the DNA bases in a process called complementary base-pairing. However, Uracil is the nucleotide base that binds to adenine in the mRNA instead of thymine. An enzyme called RNA polymerase II catalyzes the formation of a mRNA molecule. Three steps are involved in transcription:
Initiation- is the beginning of the transcription process when RNA polymerase binds to DNA.
Elongation- addition of nucleotides to the RNA strand.
Termination- is the end of the process whereby RNA strand detaches from DNA template. The resulting mRNA is a single-stranded copy of the gene.
It models the transcription of mRNA from the original DNA code.
The process of using the plaster cast to make new footprints most accurately models the transcription of mRNA from the original DNA code because both have exactly the same type of materials.
Transcription is the process in which the information present in a strand of DNA is copied into a new molecule of messenger RNA which serve as a blueprints for protein synthesis during the process of translation. The mRNA has all the information that is present in the original DNA so we can conclude that it models the transcription of mRNA from the original DNA code.
Learn more: https://brainly.com/question/21126194
How does energy from the Sun travel to Earth?
through radiation
through convection
through conduction
through the movement of particles
Answer:
A
Explanation:
its right on the enviromental systems cumlative exam on edg 2021
The energy from the Sun travel to Earth through radiation.
Heat transfer by radiation
Radiation is a method of heat transfer that does not require a material medium for the heat transfer process.
Energy transfer from the sunThe energy transfer from the sun reaches the earth through radiation process since the the energy travels in wave form.
Thus, the energy from the Sun travel to Earth through radiation.
Learn more about radiation here: https://brainly.com/question/24469662
when you move your hand up and down while holding on a jump rope, you make a wave. What is the medium
Answer:
The medium of the wave is the Rope.
Explanation:
This is because it is transverse wave and transverse wave need a medium to transfer energy and this is because in transverse wave,particles of the medium move in a direction that is perpendicular to the direction of the transverse wave. From the question, when you move you hand up and down, you make a wave and the direction of the wave is also up and down which is perpendicular to the direction of the wave.
The following diagram represents the reaction of methane with oxygen gas to form carbon dioxide and water.
The chemical reaction shown above takes place in a closed system. What is true about the system while the reaction occurs?
Answer:
It stays the same
Explanation:
If you count each in both pictures, none are added nor removed.
Answer:
stays the same
Explanation:
is Professional athletic ability inherited or acquired?
O Inherited
O Acquired
2. is color blindness inherited or acquired
A. inherited
B. Acquired
Answer:
both answers are b i think
Explanation:
The effects of deforestation can include:
Answer:
a whole lot
Explanation:
- increased greenhouse gas emissions
- more wildfires
- more global warming
- even less trees
- loss of habitat
- extinction
need I go on
Think about the podcast that you listened to in the Lesson 2.01 Introduction. Write a one-paragraph (using complete sentences) description of the experiment that was performed on these two women. Be sure to include the following: Why was the experiment conducted? What was done to the two women in order to conduct the experiment? What conclusions could be made from this experiment? Why do you think that experiments like this are no longer performed?
Explanation:
The experiment was conducted with the purpose of understanding what makes us "who we really are"; our environment or genetics?
The two women, Paula Bernstein and Elyse Schein identical twins were separated from each other at birth and only got to be reunited when they turned age 35.
"It's undeniable that genetics play a huge role," says Paula. This makes us concludes that genetics still play a role in determining who really are.
Such experiments are no longer performed today because there are legal restrictions put in place against such actions, including the ethical issues it created.
Describe how the gonorrhoea pathogen causes disease after it enter the body
Answer:
Gonorrhea is transmitted through sexual contact with the penis, vagina, mouth, or anus of an infected partner. Ejaculation does not have to occur for gonorrhea to be transmitted or acquired. Gonorrhea can also be spread perinatally from mother to baby during childbirth.