Answer:
The correct answer is option C "determine how a star is moving (toward, away, fast, slow)"
Explanation:
All realized components emanate and assimilate specific frequencies of light, which is important for the electromagnetic range. By considering the frequencies of light (as demonstrated by 'lines' inside the electromagnetic range) discharged by an object in space, astronomers can get a scope of information.
One thing they look at is the adjustment in situation of lines in the range from a star this can tell astronomers the distance away the star is, regardless of whether it is moving towards or away from us and how quick it is moving.
Which new york city is located at 42 degrees 39 north and 73 degrees 45 west
what is produced from covalent bonding
Covalent bonding occurs when pairs of electrons are shared by atoms. Atoms will covalently bond with other atoms in order to gain more stability, which is gained by forming a full electron shell. By sharing their outer most (valence) electrons, atoms can fill up their outer electron shell and gain stability
- is a covalent compound stimulates the pleasure areas in our brain making us feel good ,speed up the activity in brain and keep us awake
Answer:
Dopamine
Explanation:
The correct answer would be dopamine.
Dopamine is a chemical messenger produced in the substantia nigra, ventral tegmental area, and hypothalamus of the brain and has a variety of functions, including mediation of pleasure, learning, movements, sleep, etc.
Dopamine is released by the brain during pleasurable situations. The compound also has the ability to inhibit the actions of norepinephrine to make one feels alert and speeds up the activity in the brain.
Answer:
its dopamine..........
In "The Adventures of Theseus," once a year Theseus tries to move the stone. When he fails, he devotes himself to exercise to become stronger and more worthy of the task.
Which type of conflict does this statement describe?
man vs. society
man vs. himself
man vs. nature
man vs. man
Answer:
man vs. himself
Explanation:
Theseus is competing with himself to prove that he is worthy of this task. Hope this helps :)
How does the space suit backpack help astronauts breathe in a space environment?
Answer:
it carries oxygen and gives the person in the suit the oxygen so he or she can breath in space
On one cactus species, the red flowers are dominant over white flowers. If you crossed two heterozygous cacti, what would be the probability of having offspring with red flowers?
Answer:
3/4
Explanation:
This question involves a single gene coding for flower color in cactus plant. The allele for red flowers (R) are dominant over the allele for white flowers (r). This means that a cactus that is heterozygous (Rr) for the Gene will possess a red phenotype.
In this cross, two heterozygous cacti are crossed. The following gametes will be produced by each heterozygous parent: R and r. Using these gametes in a punnet square, the following genotype of offsprings will be produced;
RR, Rr, Rr, and rr
RR, Rr and Rr are Red flowers (3/4)
rr are white flowers (1/4)
Therefore, the probability of having offspring with red flowers is 3/4.
Please help me with this. All you ahev to do is just list a few features and behaviors of a sunflower.
Answer:
Features: Rough leaves in a long spiral pattern, Native to America
behaviors: heliotropism
Explanation:
What are barrier islands? What protects the barrier islands?
Answer:
Barrier islands form in three ways. They can form from spits, from drowned dune ridges or from sand bars. Longshore drift is the movement of sand parallel to the shore caused by the angle of the waves breaking on the beach. When a storm such as a hurricane digs an inlet through the spit a barrier island is formed. Barrier islands are a specific type of island that lie parallel to the coastline of a larger mainland. They are separated from shore by a bay, lagoon or sound and because of where they are situated, they protect the coast from being directly impacted by storm waves or winds.
Explanation:
What is the definition of a density-DEPENDENT factor?
Answer:
In ecology, any force that affects the size of a population of living things in response to the density of the population (the number of individuals per unit area).
Explanation:
i hope that helped im sorry if i didnt:(
In 3–5 sentences, describe how carbon dioxide levels can be reduced in the atmosphere.
Answer:
Walk to places as much as possible to reduce co2 emissions from cars.
Explanation:
The levels of carbon dioxide is higher in the atmosphere than it was before because of the human activities, which is eventually leading to global warming. Carbon dioxide being one of the most important greenhouse gases is present in abundant concentrations in the atmosphere and there is a need to reduce the levels to have some relief from global warming.
Some of the ways of reducing the levels of carbon dioxide in the atmosphere are:
• Planting more trees as trees are mainly good at storing carbon by the process of photosynthesis.
• Another way to use photosynthesis to fight against climate change is the use of bio-energy with carbon capture and storage technique. It is the process of utilizing biomass as the source of energy in the power sector.
• Another way to capture carbon dioxide directly from the air is by chemically scrubbing carbon dioxide directly from the ambient air, and then storing it either in the long-lived products or underground.
Thus, there are some techniques, which can be implemented to reduce the concentration of carbon dioxide from the atmosphere.
To know more about:
https://brainly.com/question/20319916
I need help I don’t understand!
Answer:
damm me too i need help with my stuff tooo
Explanation:
The key aspect of receptor-gating in the associative induction of hippocampal LTP is that Group of answer choices the NMDA receptor acts as a molecular coincidence detector. both the NMDA and AMPA channels must be open in order for the cell to depolarize. The NMDA receptor allows the flow of magnesium into the cell. all glutamate receptors open automatically whenever glutamate is in the synaptic cleft. the AMPA receptor allows calcium into the cell only after the NMDA receptor is activated.
Answer:
The correct answer is NMDA receptor acts as a molecular coincidence detector.
Explanation:
The hippocampus works entirely for memory processes (especially new learning). Lasting depression (LTD) is also considered as another form of expression of synaptic plasticity. Long-term potential occurs when pyramidal neurons are depolarized and stimulated by excitatory input. The neurophysiological basis for LTP is certainly related to a subtype of NMDA of the glutamate receptor. This receptor behaves as a coincidence detector between pre- and post-synaptic activity, with an increase in glutamate release at the presynaptic level coinciding with a Postsynaptic depolarization that allows the entry of ca2 +. The NMDA receptor has been proposed as the basic mechanism of learning, because it has the ability to associate different signals, for all this it is necessary to know what neurotransmitters are, their function and what is the role of the receivers in them.
Does the fossil of Archaeopteryx support Darwin's idea? Explain your answer.
(look at picture and read)
Answer:
yes
Explanation:
An analysis of fossil traits indicates that Archaeopteryx is not a bird at all. ... Archaeopteryx seemed to confirm Darwin's theories and has since become a key piece of evidence for the origin of birds, the transitional fossils debate, and confirmation of evolution.
1.what did magnesium and oxygen atoms had to do to bond ?
2. why did the oxygen atom needed two sodium atoms to bond ?
3. why did the magnesium atom needed two fluorine atoms to bond ?
please put the numbers in order so i know which answer is for the questions thanks <3
Answer:
1. Magnesium and oxygen atoms bond to form an ionic compound; this is evident because one forms a cation and the other an anion. When an ionic compound is formed, one atom "steals" an electron (or electrons) from another. In this case, an oxygen atom (which is pretty electronegative by the way) "steals" 2 electrons from a magnesium atom. The resulting oxygen anion and magnesium cation attract one another to form a bond (more specifically, an ionic one).
2. The oxygen atom needed two sodium atoms to bond because it needs two additional electrons to achieve a stable octet of electrons. 1 sodium atom provides 1 additional electron after it is "stolen" by oxygen, so 2 sodium atoms are needed in total to form the bond.
3. The magnesium atom needed two fluorine atoms to bond because it needs to lose two electrons to achieve a stable configuration/octet of electrons. 1 fluorine atom "steals" one electron, so 2 are needed in total.
Happy Holidays!
when oil coal and natural gas are held away from the rest of the carbon cycle for a long time it forms
A) fossil fuel
B) carbon
C)limestone
D) soil
Answer:
fossil fuels
Explanation:
oil, coal, and natural gasses once separated for a long time, form fossil fuels
Approximately how much energy is transferred from one step In a food chain to the next?
A. 90%
B. 1%
C. .1%
D. 10%
Which of the following exceptions to the Fourth Amendment allow law enforcement officers to search email, telephone, medical, and financial records?
A.
voluntary consent
B.
hot pursuit
C.
the USA PATRIOT Act
D.
exigent circumstances
E.
Miranda exclusion
Answer:
C. USA PATRIOT Act.
Explanation:
The USA PATRIOT Act of 2001 enables law enforcement officers to search emails, telephonic conversations, medical, library and financial records. The USA PATRIOT Act stands for Uniting and Strengthening America by Providing Appropriate Tools Required to Intercept and Obstruct Terrorism Act. This act was enforced into the law after the terrorist attack on the World Trade Center and the Pentagon on September 11, 2001.
The Fourth Amendment of the Constitution protects the rights to privacy of it's citizen but with exceptions. The USA PATRIOT Act is one of those exceptions. Under this exception the police officers have permission to search email, telephonic conversations, medical, library and financial records without warrant, if there's any hint of possible threat.
Therefore, option C is correct.
Answer: c
Explanation:
A community cannot be termed healthy unless each of its individual is healthy. comment on this statement.
Answer:
this statement does not make sense to me, but ok.
Explanation:
;/
Answer:
you neeed everyone to be healthy before you state that everyones healthy
Explanation:
Which number best fits the phase where DNA replication occurs?
Group of answer choices
1
9
8
3
Answer:
deoxyribonucleic acid
Explanation:
DNA stand for that
i) predict which of the liquids would cause the largest decrease in mass of potato stick
PLEASE PLEASE HELP ME I HAVE 10 MINUTES ONLY, I WILL GIVE YOU THE BRAINLIEST!!
Answer:
1.0 mol per dm^3 sodium chloride solution
Explanation:
The idea behind this question is that the water inside the potato stick would move into the surrounding liquid naturally if the density outside the stick is greater than it is inside. Therefore, the liquid that would most encourage the flow of water from the potato stick would be the moet dense liquid- which in this case, is 1.0 mol per dm^3 sodium chloride solution.
Give a reason why the permanent tissue does not grow
Answer:
they are plant cells thst have comppleted their growth and do not divide
Explanation:
there is no meristemic growth
Unlike meristems, permanent tissue is made of differentiated cells that have lost their ability to divide.
Each characteristic of an organism.
A.
DNA
B.
Trait
C.
Complementary Bases
D.
gene
Answer:
for me it's
Explanation:
traits on my opinion
The correct answer is trait
What is the cell nucleus?
Answer:
The nucleus in a cell is like a brain in a human. It is the power house. The nucleus tells everything in the cell what to do and when to do it.
Explanation:
Answer:the nucleus is an organelle found in eukaryotic cells. The nucleus hold most of the genetic material from the cell.
Explanation:
identifies the building blocks/monomers of carbohydrates, proteins, and lipids and describes how these monomers are joined together to make larger molecules
Answer:
pizza
Explanation:
gott it right on test
What is the main function of the immune system?
A.to package wastes and remove them from the body b. To fight diseases and other invaders C. To take the food we eat and turn it into nutrients for the body to use d. To send electric through the body
Answer:
c
Explanation:
Which of the following was used to measure the rate of photosynthesis?
Answer:
Using 'immobilized algae'
Explanation:
Photosynthesis is an important biochemical process in which plants, algae, and some bacteria use the energy of solar radiation as a source of energy for food synthesis.
Immobilized algae are used to standardize the amount of photosynthetic tissue in any investigation.
Name three different massive stars
Answer:
R136c: 230 solar masses.
BAT99-98: 226 solar masses.
R136a2: 195 solar masses.
Answer:
The sun, T-Tauri, Lambda Bootis,
Explanation:
living things are made up of cells and the product of cells. Explain what this means
Answer:
A living thing's first feature is that it is made up of cells. A cell is the basic structural unit of all organisms. It is the smallest organization structure in a living thing. They contain the organism's genetic information (DNA) and can replicate themselves in a process known as mitosis.
What to do if we get diarrhea?
Drink a lot of fluids to prevent dehydration.
Which phrase describes the ability to mark which part of the brain controls what?
A. hemisphere surgery
B. brain mapping
C. brain tumor
Answer:
brain anatomy describes the ability of brain
