Answer:
high concentration to low concentration
Explanation:
particles bounce off of eachother and through probability the higher amount of concentrated particles the more likely for them to bounce and move to an area of low particle count
A scientist uses materials in her lab to separate DNA fragments by size. What process is she using?
Answer:
Gel electrophoresis is the technique she is using
Explanation:
Answer:
I may be wrong
Explanation:
it is le
Reading Focus Question:
Which parts of the biodome
contain carbon?
Hello people ~
Seed formation without fertilization in flowering plants involves the process of
a) Apomixis
b) Somatic hybridization
c) Budding
d) Sporulation
Explanation:
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Seed formation without fertilization in flowering plants involves the process of ---
A) APOMIXIS
Which property refers to how a mineral reflects light? density hardness luster streak
Answer:
Luster is how a mineral reflects light.
Explanation:
Answer:
Luster is correct
Explanation:
Got it right on Edge
Which earthquake will cause more damage: an earthquake of magnitude 5 or 7?
Answer:
Magnitude 7 can cause more damage
Gold is not a compound.
O A. True
O B. False
Answer:
A or True
Explanation:
Gold is not a compound.
Reverse genetics can be useful for: Question 4 options: Determining the function of a gene Forensic analysis Cloning desirable animals Amplifying gene sequences
The molecular biology technique of reverse genetics can be useful for determining the function of a gene.
What is reverse genetics?Reverse genetics is method use in molecular biology to determine gene function in an organism
The procedure in reverse genetics involves modifying or certain nucleotide sequences in the DNA coding for a functional gene and then observing changes to the phenotype of the organism brought about by the modifications.
Therefore, reverse genetics can be useful for determining the function of a gene.
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PLEASE HELP WILL GIVE BRANLIEST!
A. all
b. none
c. theee-fourths
d. half
Answer:
D
Explanation:
Which of these will MOST likely occur if chemicals from fertilizers run off into lakes and streams?
Which of these will most likely occur if chemicals from fertilizers run off into lakes and streams?
Fish will die from a lack of oxygen.
hope this helps
PLEASEEEE HELP, I REALLY REALLY NEED HELP
THANK YOU
Researchers in Tokyo recently discovered that a layer of dead bacteria can protect living bacteria beneath it for up to eight years. These bacteria beneath the protective layer of dead cells are resistant to radiation, desiccation, and lack of nutrition. These protected cells can even travel long distances in a vacuum without being killed. What idea for the origin of life is BEST supported by the description here? A) panspermia B) abiogenesis C) primordial soup formation D) formation of life at hydrothermal vent locations
b) abiogenesis
Explanation:
abiogenesis, the idea that life arose from nonlife more than 3.5 billion years ago on Earth. Abiogenesis proposes that the first life-forms generated were very simple and through a gradual process became increasingly complex.
Define cancer in terms of the cell cycle. A. cells display contact inhibition B. cell division stops C. cell division occurs repeatedly without control
Why is it beneficial to plants that soil particles have negatively-charged surfaces?.
Answer:
Why is it beneficial to plants that soil particles have negatively-charged surfaces? Negatively-charged ions are pushed towards the roots. They attract positively-charged ions and prevent them from being washed deep into the soil.
Explanation:
hope this helps
Use the drop-down menus to identify the role of each organism in the food chain. in alaska, salmon feed on tiny plants called phytoplankton. during late summer, salmon gather in rivers to reproduce. grizzly bears visit these rivers to feed on the large number of salmon. phytoplankton are . both the salmon and the grizzly bears are . grizzly bears are .
The role of each organism in the food chain are
Phytoplankton ---Autotrophs Salmon---- consumersGrizzly bears ----consumersWhat is the food chain?Generally, A food chain is simply defined as a network of creatures in the Environment that passes nutrients and energy from one organism consumes to another.
In conclusion, Naturally, Phytoplankton is a microscopic algae Autotrophs while Salmon and grizzly bears are both endangered species who are both consumers and Grizzly bears are also secondary consumers.
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Answer:
Phytoplankton are autotophs
Both the salmon and the grizzly bears are consumers
Grizzly bears are sedondary consumers
Explanation:
A fluid-filled sac in or around a testis is known as a ____.
What is a control and an experimental group in an experiment? What is the purpose of each?
Answer:
A control group is basically have 2. The control however doesnt get experimented with. It's basically only there so that you can clearly see the reaction. The experimental group is what you're doing the experiments on.
Explanation:
An individual receives a knife wound to the axillary region. The nerve plexus most likely to be damaged is the.
Answer:
The brachial plexus is most likely to be damaged.
Infants have a fixed stroke volume. What does this mean for how infants will control their cardiac output?
Answer:
Infants are able to regulate cardiac output by changing the stroke volume to a greater extent than presumed, at least when cardiac output is influenced by changes in the mean airway pressure.
Explanation:
During fermentation, yeast break down pyruvate into ____________ and acetaldehyde, and ____________ is regenerated to keep glycolysis running and producing a small amount of ATP.
During fermentation , yeast break down pyruvate into ethanol and Nicotinamide adenine dinucleotide(NADH) is
regenerated to keep glycolysis running and producing a small amount of ATP.
What is fermentation?Fermentation is the process whereby glucose or carbohydrates are break down into alcohol in the presence of an enzymes or yeast. and in the absence of oxygen. Two molecules is involved in fermentation.
Therefore, During fermentation , yeast break down pyruvate into ethanol and Nicotinamide adenine dinucleotide(NADH) is regenerated to keep glycolysis running and producing a small amount of ATP
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06
Some students investigated the effect of drinking caffeine on reaction time.
They used a drink containing 32. 25 mg of caffeine per 100 cm
This is the method used.
1. Divide the students into four groups, A, B, C and D.
2. Measure and record the reaction time of each student using the ruler-drop test.
3. Students in:
• group A drink 200 cm of water
• group B drink 200 cm of the caffeine drink
• group C drink 400 cm of the caffeine drink
• group D drink 600 cm of the caffeine drink.
4. Repeat step 2 after 15 minutes.
0
6
1
Describe how to do the ruler-drop test.
[3 marks]
Answer:
I would say b let me know if I was wrong sorry
How does the contractile vacuole in a single-celled organism function to maintain homeostasis?
It pumps water into the cell.
It pumps water out of the cell.
It pumps solutes into the cell.
It pumps solutes out of the cell.
B. It pumps water out of the cell
Hope this helps :))
Answer:
B
Explanation:
B
According to the evolutionary theory of aging, natural selection has not eliminated many harmful conditions and nonadaptive characteristics in older adults because natural selection Multiple choice question.
According to evolutionary theory ,natural selection is linked to reproductive fitness, which is present only in the earlier part of adulthood.
What is evolutionary theory of aging?Evolutionary theory of aging is a theory that state the reason there is increase in mortality with age. As person grow older, less lifetime fertility remains, Therefore, continued survival lead to a reduced. reproductive fitness.
Therefore, According to evolutionary theory ,natural selection is linked to reproductive fitness, which is present only in the earlier part of adulthood.
Learn more about evolutionary theory below.
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If there were no lynx controlling the snowshoe hare population, what would eventually happen to the population of the snowshoe hares and the grasses that the snowshoe hares eat?
Answer:
The snowshoe hare population would grow and then go down
Explanation:
This is because they will have less or no predators so that contributes to the population growth. Eventually the population will be so big, that there will be less of the grass left for the whole population because it is so big.
Answer: yes
Explanation: uhh cause hare
Identify a signal the brain sends out after the nervous system sends the signal that pH has dropped.
In response to a notification of a decrease in blood pH by the nervous system, the brain sends signals to the external intercostal muscles and the diaphragm.
What is blood pH?Blood pH can be defined as a measure of the molar concentration of hydrogen ions that are present in the blood of a living organism, with respect to its acidity, neutrality or alkanlity (basicity).
In response to a notification of a decrease in blood pH by the nervous system, the brain would send signals (impulses) to the external intercostal muscles and the diaphragm through its respiratory center, so as to help the living organism increase its breathing rate and the volume of its lungs during inhalation.
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What happens after mRNA
leaves the nucleus?
A. It is used to protect the cell membrane.
B. Its sequence is decoded by the Golgi body.
C. Its sequence is decoded by tRNA.
D. It is used to produce ATP in the
mitochondria.
Can you guys see if you can do this? Link attached
Answer:
It's PDF
Explanation:
What is that?
hmm what subject?
Which restriction endonucleases would cleave a dna molecule at the given sequences? the complementary dna substrate strand is omitted for clarity.
The types of restriction endonucleases that would cleave a DNA molecule at the given sequences are type I and type II restriction endonucleases.
What do you mean by Restriction endonucleases?Restriction endonucleases may be defined as a protein constructed by bacteria that cleaves DNA at specific sites along the molecule.
Among the type I and type II restriction endonucleases, type II restriction endonuclease cuts the DNA molecules more efficiently and is widely used for the same procedure as compared to type I restriction endonucleases.
Some of the examples of type II restriction endonucleases include EcoRI, HindIII, BamHI, etc.
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If mendel had crossed a true breeding dominant plant with a true breeding recessive plant, in which of the three generations is the recessive trait visible? f1 generation only p generation only f1 generation and f2 generation p generation and f2 generation
After the crossing, the recessive trait is visible in the p generation and f2 generation.
What is genetics?The term genetics has to do with the science of inheritance. It is the study of patterns of inheritance. True breeding organisms are hom-ozygous.
Hence, when a true breeding dominant plant is crossed with a true breeding recessive plant, the recessive trait is visible in the p generation and f2 generation.
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Answer:
it’s D
Explanation:
the P generation (parent generation) and the f2 generation are the ones that have it visible, the f1 generation doesn’t
ur welcome:)
i'll give you 50 points Homeostatic mechanisms work continuously to maintain stable conditions in the human body. Using the model provided, explain how feedback mechanisms maintain blood sugar levels. Choose ALL Three that apply.
When blood sugar levels are too low, glucose is released from glycogen where it's stored.
This is an example of a negative feedback mechanism because the initial stimulus is reversed.
This is an example of a positive feedback mechanism because the initial stimulus is enhanced.
When blood sugar levels are too high, the pancreas releases insulin to store excess glucose as glycogen.
When blood sugar levels are too high, the pancreas releases insulin to store excess glucose as glucagon.
Answer:
I think it’s these 3 based off my current knowledge and the internet
When blood sugar levels are too low, glucose is released from glycogen where it's stored.
When blood sugar levels are too high, the pancreas releases insulin to store excess glucose as glucagon.
This is an example of a negative feedback mechanism because the initial stimulus is reversed.
Explanation:
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Answer: The Answer is negative feedback because i just got it write on my online SG
Explanation:
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ANSWER ALL THE QUESTIONS FOR BRAINLIEST
How long ago did the common ancestor of all the organisms on this phylogenetic tree exist?
b. Which two lines diverged 30 million years ago?
c. List all modern descendants of the organism that was alive at the point indicated by the asterisk.
According to Model 1, when did the Giant Panda line diverge from the line that led to modern
bears?
According to Model 1, what animal shares the most recent common ancestor with the Brown
Bear?
In a complete sentence, describe what the branch points and lines in a phylogenetic tree
represent.
Which of the two branches from the common ancestor in Model 1 has the most living
descendants?
6. According to the phylogenetic tree in Model 1, the Red Panda is most closely related to which
animal?
7. Which are more closely related, the Giant Panda and the Red Panda or the Giant Panda and the
Polar Bear? Justify your answer using grammatically correct sentences.
The phylogenetic tree shows the evolutionary relationship between bears and pandas
What is a phylogenetic tree?A phylogenetic tree is a diagrmmatic representation of evolutionary relationships in a tree form where branches represent diversification of species.
From the phylogenetic tree shown:
the common ancestor of all the organisms on this phylogenetic tree existed 40 million years ago the two lines diverged 30 million years ago is the raccoons and red panda and the bears and Model 20The spectacled bear, sloth bear and sun bear were alive at the point indicated the Giant Panda line diverged from the line that led to modern bears 20 million years agothe polar bear shares the most recent common ancestor with the BrownBearThe branch points in represents the divergence points and the lines represent timelines The branch having the bears and giant panda has the most livingdescendantsThe red panda is most closely related to the raccoons The giant panda and polar bear are most closely relatedTherefore, the phylogenetic tree shows the evolutionary relationship between bears and pandas.
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Based on information from the periodic table, what does this image
represent?