Answer:
Usually 10-14 days
Explanation:
Most grass seed will start growing in about 10-14 days, but sometimes it can take up to 30 days.
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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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
When chickens hatch, the pip appears first. What is a pip?.
Answer:
Just prior to hatching, the chick pokes its beak through the membranes (pips) into the air cell and begins breathing with its lungs. Chicken eggs are expected to hatch on or around day 21 into incubation and should generally hatch within 24 hours of the first pip in the batch.
Explanation:
hope this helps
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:
Reading Focus Question:
Which parts of the biodome
contain carbon?
Use the drop-down menus to complete these statements. Enzymes act as catalysis, coupling reactions with spontaneous reactions. This is important, because without enzymes, processes would not occur. Spontaneous reactions are normally
Answer:
1: Nonspontaneous
2: anabolic
3: exothermic
Explanation:
I guessed
PLEASE HELP WILL GIVE BRANLIEST!
A. all
b. none
c. theee-fourths
d. half
Answer:
D
Explanation:
Which solution would most likely cause a plant placed in it to become firmer and more rigid?
hypertonic
hypotonic
isotonic
osmotic
Define cancer in terms of the cell cycle. A. cells display contact inhibition B. cell division stops C. cell division occurs repeatedly without control
Which of the following is NOT a
reason that plants (and
photosynthesis) is important for
animals?
O Because animals eat plants,
absorbing the energy that
those plants absorbed from
the sun through
photosynthesis.
O Because animals need
oxygen to breathe, and
plants produce oxygen.
Because animals can use
plants for shelter, raw
materials, and medicines.
ILL GIVE BRAINLISTT!
Answer:
Because animals get their energy by absorbing light from the sun.
Explanation:
K12, and I just took it
how does energy grow through an ecosystem HELP
Answer:
Energy is transferred between organisms in food webs from producers to consumers.
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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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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Antibody molecules and receptor molecules are similar in that they both *
(1) control transport through the cell membrane
(2) have a specific shape related to their specific function
0 (3) remove wastes from the body
(4) speed up chemical reactions in cells
Antibody molecules and receptor molecules are similar in that they both *(1) control transport through the cell membrane
Explanation:
The movement of water from high to low concentration across a semipermeable membrane is best defined as:.
The movement of water from high to low concentration across a semipermeable membrane is best defined as Osmosis.
have a great day!
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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A fluid-filled sac in or around a testis is known as a ____.
The diagram below shows the positions of Earth, sun, and moon during two types of tides. The picture on the left is labeled Tide 1 and shows the Earth and sun along the same horizontal line and moon above Earth. The picture on the right is labeled Tide 2 and shows the Earth and sun along the same horizontal line and the moon below Earth. What impact do both positions have on the tides?
The difference is greatest between the high and low tides.
The difference is almost equal to the high tide between the high and low tides.
The gravitational forces due to the sun and the moon cancel each others' effect.
The gravitational forces due to the sun and the moon amplify each others' effect.
Question 11(Multiple Choice Worth 4 points)
[O.02]The table below shows the difference between the average temperatures in April and October in four locations.
Location Difference between the average temperatures in April and October (in degrees Celsius)
A 4.5
B 1.7
C 6.8
D 4.0
Which of these locations is most likely closest to the ocean?
Location A
Location B
Location C
Location D
Question 12(Multiple Choice Worth 4 points)
[O.02]Which of these statements best explains why sea breeze blows during the day in coastal locations?
Sea gets heated up faster than land during day time.
Land gets heated up faster than sea during day time.
Sea gets cooled faster than land during day time.
Land gets cooled faster than sea during day time.
Question 13(Multiple Choice Worth 4 points)
[O.02]Vertical movement of deep ocean water is caused by
forces of wind
phytoplanktons
dissolved nutrients
variations in density
Question 14(Multiple Choice Worth 4 points)
[O.04]Which of these diagrams best represents the position of the moon when the location P experiences the highest tide?
Picture shows Earth with the North pole labeled P. A small circular moon is shown on the left of Earth.
Picture shows Earth with the North pole labeled P. A small circular moon is shown on the right of Earth.
Picture shows Earth with the North pole labeled P. A small circular moon is shown above the point P.
Picture shows Earth with the North pole labeled P. A small circular moon is shown above P, slightly towards right.
Question 15(Multiple Choice Worth 4 points)
[O.03]Which of these statements best describes the properties of tsunami waves?
They have long wavelengths and are driven by strong winds.
They originate as high amplitude waves and travel at a very high speed.
They have long wavelengths and travel at a very high speed.
They are driven by strong winds and originate as high amplitude waves.
Question 16(Multiple Choice Worth 4 points)
[O.03]The distance between the first and third crest of an ocean wave is 24 meters. What is the wavelength of the ocean wave?
6 meters
8 meters
12 meters
24 meters
Question 17(Multiple Choice Worth 4 points)
[O.04]Martha designed a model to show the positions of Earth, sun, and moon when there is greatest difference between high and low tides. Which of these is most likely the model designed by Martha?
Picture shows sun, moon, and Earth along the same horizontal line.
Picture shows the sun and Earth along the same horizontal line and the moon above Earth.
Picture shows the sun and Earth along the same horizontal line and the moon below Earth.
Picture shows the sun and Earth along the same horizontal line and the moon above Earth slightly towards right as shown in the art.
Question 18(Multiple Choice Worth 4 points)
[O.05]What are people in a coastal location in Florida most likely to do if there are abnormally high winds leading to storm surges and dangerous rip currents?
engage in water sports like surfing
shift to inland locations temporarily
enjoy recreational activities on the beach
build barriers on the coastline to prevent flooding
The position of the moon, earth, and sun decides whether a high or a low tide will occur. When the sun and the moon are at right angles to each other then the gravitational pull of both the sun and the moon are canceled out. So the correct answer is option C. 11-B,12- B, 13-D, 14-C, 15-C, 16-C, 17-A, 18-B.
What is a gravitational pull?A gravitational pull is a force that causes two to be pulled towards each other. Any object having mass has a gravitational force. The greater the mass of the object, the greater the gravitational pull. Gravity helps to hold the planets in their orbit around the sun and keeps the moon in its orbit around the Earth.
The gravitational pull is also responsible for causing high and low tides. The side of the earth which is closest to the moon, experiences a strong gravitational pull of the moon resulting in a high tide. The side of the earth which is away from the moon also experiences a strong gravitational pull due to the earth’s rotational force. So this side too faces the high tide.
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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.
Which example best illustrates a method to show differences among earth’s layers? carson models how the continental crust varies in thickness. marisol records atmospheric and oceanic temperatures at several beaches. eliza analyzes seismic wave activity from an earthquake using a computer model. oscar determines the pressure at different depths of earth’s crust.
A method to show differences among earth’s layers is "oscar determines the pressure at different depths of earth’s crust." Option D.
What are earth’s layers?Generally, the four earth layers are the
The outer crust.The mantle.The liquid outer core.The solid inner core.In conclusion, the mineral content of rock core samples at different depths in Earth's crust are the differences among earth’s layers.
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Answer: I think its D
Explanation:
In a population with brown and green alleles for color, genetic drift.
Answer:
the frequencies of the brown and green alleles will not change. the frequency of the brown allele will increase. this causes the population to evolve due to gene flow. this causes the population to evolve due to genetic drift.
Which of the following soil samples is the most porous?
will give brainliest :)
Answer:
Third option
Explanation:
the gaps are bigger
Hope it Helps
Write 2-3 sentences to show your understanding of how the following words connect together in the water cycle: Evaporation, Condensation, Precipitation, Freezing, Melting
The water cycle is responsible for the regulation of temperature in our surroundings. It modifies the weather and causes rain. It is important for the circulation of various minerals throughout the environment.
What do you mean by the Water cycle?The water cycle may be defined as the continuous process by which water is circulated throughout the earth and the atmosphere through evaporation, condensation, precipitation, vaporization, etc.
Evaporation: It is a process through which water changes its liquid state into a gaseous or vapor state. It is the first step of the water cycle.
Condensation: It is the opposite as compared to evaporation. It involves the process of water vapor changing back into liquid water.
Precipitation: This process is responsible for the rain to occur. It involves the gathering of water vapor to synthesize bigger and bigger droplets of water.
Freezing: Freezing is responsible for the formation of ice in glaciers, at low temperatures, etc. It involves the process of changing liquid water into a solid form.
Melting: This process is just the opposite of freezing. Hence, it involves the transformation of a solid form of water which is ice into a liquid form.
Therefore, it is well described above.
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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
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:)
What is the name of the functional group formed when simple sugars combine?.
Answer:
In glucose and galactose, the carbonyl group is on the C1 carbon, forming an aldehyde group. In fructose, the carbonyl group is on the C2 carbon, forming a ketone group. The former sugars are called aldoses based on the aldehyde group that is formed; the latter is designated as a ketose based on the ketone group.
Explanation:
what is the water cycle and explain along with the process!
Answer:
The water cycle is a process in which water is lost from water bodies and then it again comes back to earth in form of rain. This is how I know it, but the explanation is correct.
Explanation:
See,
Water from water bodies evaporates and becomes water vapour due to heatThis then reaches high altitudes, where it condenses with dirt to create small droplets thingyThis then creates a cloud, which on correct saturation with water, makes it rains.This cycle goes on continuously creating a cycle which is termed the water cycle.
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BYE
Can you guys see if you can do this? Link attached
Answer:
It's PDF
Explanation:
What is that?
hmm what subject?
ANSWER FOR POINTS AND BRAINLIEST PLEASEEEE
Which of the following describes a way to reduce the activities that generate solid waste?
1. Compost food instead of throwing it in the garbage.
II. Buy reusable items that won't break easily.
III. Buy products made from new materials.
1. I only
2. II only
3. I and II
4. I, II, and III
Answer:
3:1 and 2.
Explanation:
Energy and nutrients from food that has been turned into compost can be used by plants to grow. Using reusable items that won't break easily prevents you from throwing it away cause what's the point. If it ain't broke why throw it away.
Activities that reduce solid waste are composting food instead of throwing it in the garbage. Hence, option C is correct.
How can solid waste be reduced?Solid waste can be reduced through various measures, some of which are:
Reduce, Reuse, and Recycle: The three Rs of waste reduction can help in reducing the amount of solid waste generated. By reducing the consumption of products, reusing items, and recycling materials, less waste is sent to landfills.
Composting: Organic waste such as food scraps, yard waste, and paper products can be composted to produce nutrient-rich soil for gardening.
Avoiding single-use items: Single-use items such as plastic bags, straws, and disposable cups can be avoided by using reusable alternatives.
Buying in bulk: Buying products in bulk can help reduce packaging waste.
Donating items: Items that are still in good condition but are no longer needed can be donated to local charities or thrift stores. Hence, option C is correct.
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Which system transports nutrients from the digestive system through out the body
Answer:
Circulatory system
Explanation:
The circulatory system is one of the eleven organ systems of the human body. Its main function is to transport nutrients to cells and wastes from cells
Primary purpose of circulatory system is to transport blood throughout the body by circulating