Answer:Have you ever wondered how scientists extract DNA from an organism? All living organisms have DNA, which is short for deoxyribonucleic acid; it is basically the blueprint for everything that happens inside an organism’s cells. Overall, DNA tells an organism how to develop and function, and is so important that this complex compound is found in virtually every one of its cells. In this activity you’ll make your own DNA extraction kit from household chemicals and use it to separate DNA from strawberries.
Explanation:
Name 4 ways that man's activities threaten oyster bed survival.
Answer:
Oysters live in salty or brackish waters on all U.S. coasts, clustering on older shells, rock, piers, or any hard, submerged surface. They fuse together as they grow, forming rock-like reefs that provide habitat for other marine animals and plants
There are _____________system in our body .
answer if you know otherwise don't answer .
Answer:
There are eleven organ system in our body .
hope it is helpful to you
Describe the structure of sponges and how they will get food. Which phylum do they belong to?
Answer:
spogues soak up water and thats how they get there food
If a parent cell contains 18 chromosomes before mitosis, how many chromosomes will it contain after mitosis?
Answer:
36
Explanation:
mitosis is cell division ( times 2 basically)
Some women who took the drug thalidomide in early pregnancy gave birth to children with serve birth defcets. Which is thalidomide considered to be?
A. antibiotic
B. mutagen
C. vaccine
D. virus
PLZ HELP WITH THE FIRST 3 WILL BE GIVING BRAINLIEST
Answer:
1. The tilt of the earth determines the seasons. When it is summer in the southern hemisphere, the south is pointed towards the sun and receives the most direct sunlight. The north is pointed away from the sun and it creates winter.
2. The winter solstice is around December 21 in the northern hemisphere. The earth is tilted 23.4 degrees and is the furthest from the sun.
3. The summer solstice is around June 21 in the northern hemisphere. The earth is tilted 23.4 degrees and it the closest to the sun
What does carbon dioxide do in the environment?
acts as a greenhouse
acts as a filter for the environment
Answer:
Extra carbon dioxide in the atmosphere increases the greenhouse effect. More thermal energy is trapped by the atmosphere, causing the planet to become warmer than it would be naturally Explanation: yeah
Answer:
White noise refers to sounds that mask other sounds that might occur naturally in an environment. If you live in a city, for example, white noise could help block out noises associated with traffic. Specific sounds might be used to help encourage sleep regardless of environmental noises.
Explanation:
Hopefully someone can help!!!
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Answer:
whos keyyon
Explanation:
Answer:
agree
Explanation:
just bc
PLEASE ANSWER THE ONES THAT ARENT CROSSED OUT ITS PAST DUE AND IM STUCK AND PLEASE DON’T JUST ANSWER FOR POINTS THANK YOU
Answer:
Collection:
1: runs
Condensation:
1: fall
2: condense
Precipitation:
1: Earth's
2: droplet
3: solid
Explanation:
hope this helps
After studying plate tectonics, Lee became interested in mid-ocean ridges and how rock develops as the tectonic plates spread apart, so he decided to investigate further. Which of the following statements are true about sea-floor spreading? Choose the three statements that apply. A. Young rock forms in layers on the ocean floor as spreading occurs. B. Magma flows through cracks in Earth's crust and hardens. C. Continental crust is formed by the ridges as they grow. D. Mid-ocean ridges are the sources of the spreading. E. Older rock is farther away from the mid-ocean ridges.
Answer:
A, B, E
Explanation:
The magma rising through the cracks makes new younger rocks close to the crack as the magma follows out and hardens. This means that rocks farther away from the crack are older because they where formed when they where right next to the crack. They are father away meaning they got pushed back as time went on.
Mid ocean ridges are a result of the spreading not the cause.
Because they are in the middle of the ocean and they are moving constantly i dought the mid ocean ridges are creating continents.
Young rock forms in layers on the ocean floor as spreading occurs, magma flows through cracks in Earth's crust and hardens, and older rock is farther away from the mid-rock is farther away from the mid-ocean ridges. Thus, the correct options are A, B, and E.
What is Sea-floor spreading?
Seafloor spreading is a geologic process in which the plate tectonic and large slabs of the Earth's lithosphere split apart from each other in space. Seafloor spreading and other tectonic activities are the result of mantle convection, which is a slow, churning motion of the Earth's mantle.
The magma in the Earth rise through the cracks in rocks that makes new younger rocks which are close to the crack as the magma follows out and hardens. This means that rocks which are farther away from the crack in the rock are older as they were formed when they were right next to the crack.
Mid ocean ridges are formed as a result of the Seafloor spreading. Because they are present in the middle of the ocean and are constantly moving in the mid ocean ridges which create continents.
Therefore, the correct options are A, B, and E.
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2 min left!
Answer the questions using the drop-down menus.
Which is the independent variable in this experiment?
Which is the dependent variable in this experiment?
Which is a controlled variable in this experiment?
Answer:1-angle of light
2-temperature of light
3- type of material
Explanation:
did this on edge and got it right, hope this helps. <33
A single chromosome contains many genes.
True
False
Answer:
True . It contains hundreds to thousands genes.
Answer:
yus
Explanation:
The diameter of a carbon atom is 2.2 × 10 -8cm. Write this as a whole number. (please help. i will give brainliest)
Answer:
14cm
Explanation:
When the tide goes out, where does the water go?
Answer with at least two complete sentences.
Be sure to check your grammar and spelling.
You can use the sentence starters below to help you answer:
When the tide goes out, the water ________________________.
Answer:
When the tide goes out, the water retracts back into the sea. The water moves between the sun and the moon which pulls the water back into the sea.
Explanation:
Tides are caused by the gravity of both the moon and the sun “pulling” at the water in the sea. Because the Earth is constantly turning, the “pull” of gravity affects different places as each day goes on - so when the tide is “out” in your area, it is “in” somewhere else.
Can someone help me with this ASAP!
Answer:
The answer is C.
Explanation:
There are dominant alleles present in three out of four (CC, Cc, Cc) and the recessive is always cc. Three out of four make 75% and one out of four is 25%. That makes 75% dominant and 25% recessive.
I hope this helps!
HELP ASAP I HAVE 10 MINUTES TO ANSWER⚠️⚠️⚠️⚠️⚠️⚠️⚠️⚠️⚠️Wendy added the same amount of water to two plants of the same variety. She placed them in the sun and added fertilizer to one plant but not to the other. She
recorded the height of the plants after a week. What is the independent variable in the study?
A. Time
B. Fertilizer
C. Height of plant
D. Volume of water
Answer:
C
Explanation:
light needs matter or material to carry light true or false
Which of the following is an example of chemical digestion?
A: A whole grape enters your mouth and your teeth break it up into smaller pieces that are easier to swallow.
B: The bagel you ate this morning eventually leaves your body as a waste material called feces.
C: Your body uses the eggs you had for breakfast for energy, growth and healing.
D: Little pieces of chewed up hamburger are broken down into smaller molecules by enzymes.
Answer:
Food passes through a long tube inside the body known as the alimentary canal or ... canal is made up of the oral cavity, pharynx, esophagus, stomach, small intestines, ... Food begins its journey through the digestive system in the mouth, also ... Teeth chop food into small pieces, which are moistened by saliva before the ...
Explanation:
Please answer this question in the picture dont just answer for points
What are the biological levels of organisms? (Explain each one)
Biological Levels of Organisms:
Cells
Tissues
Organs
Organ Systems
Organism
what types of sedimentary rocks are formed from the remains of dead organisms
Answer:
Limestone
Explanation:
Limestone is formed from dead organisms and can also form from calcite in lakes, seas, etc.
Biochemical sedimentary rocks are formed from the remains of dead organisms.
What are biochemical sedimentary rocks?Biochemical sedimentary rocks are formed from shells and bodies of underwater organisms. The living organisms extract chemical components from the water and use them to build shells and other body parts.Types of biochemical sedimentary rocksThe three basic types of biochemical sedimentary rocks are classified according to their original material:
Limestone (calcium carbonate), coal (carbon), and chert (silica).Thus, we can conclude that biochemical sedimentary rocks formed from the remains of dead organisms.
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Do you think our society is wasteful in terms of natural resources? Defend your position by explaining the social and economic factors affecting our use of natural resources. Discuss how we can improve the way that we use natural resources. What are some social or economic factors that will make it difficult to improve the way that we use natural resources?
the Answer is: Any natural substance that humans use can be considered a natural resource. Natural resources are used to make food, fuel and raw materials for the production of goods. All of the food that people eat comes from plants or animals. Natural resources such as coal, natural gas and oil provide heat, light and power.
Read the first two sections "Darwin's Finches" and "The Galapagos Islands"
5. Did Darwin first believe that each finch he found was a different species? Was he right or wrong?
6. How did organisms arrive at the Galapagos Islands?
7. Why is selective breeding useful to farmers?
8. What does it mean to selectively breed an organism?
9. What is mimicry? How does mimicry benefit an organism?
Answer:
hi
Explanation:
A cow with a white coat is bred with a cow with a red coat. The offspring have coats with both white and red hairs. This is an example of _____.
multiple genes
incomplete dominance
codominance
mutation
Answer: codominance
Explanation: codominance means the two equally dominant alleles are expressed at the same time.
________ genes are stronger than ________.
Dominant recessive
Recessive dominant
Answer:
The answer is Dominant recessive genes are stronger than Recessive dominant.
Explanation:
A dominant gene is a type of gene which dominates in the inheritance pattern and masks the other one, on the other hand, a recessive gene is that which does not show its trait in inheritance pattern and hidden by the dominant one. A dominant gene is stronger gene while the recessive gene is a week gene.
Hope this helped
A population is a group of individuals of the same species. According to the theory of natural selection, what is likely to happen to a population when a change occurs in its environment (for example, the amount of rainfall decreases or the temperature increases)?
A.All of the individuals would try to develop new traits so that they could survive and reproduce in the changed environment. B.Some of the individuals would try to develop new traits so that they could survive and reproduce, and the other individuals would die. C.Because all individuals of the same species have the same traits, one individual would never have an advantage over another in its population.They would either all survive or all die.D.The individuals that have traits better suited to the changed environment would be more likely to survive and reproduce than those with less suitable traits.
Answer:
The answer is D.
Explanation: As everyone knows, "survival of the fittest" is a common thing. When an environment is disturbed or has some changes, the effects vary from one species to another and the ones who have traits that can help get through or adapt to these changes will most likely survive.
a weather forecast for a certain day in an area shows two measurement 18 degrees 25 degrees what do these measurement indicat
These measurements indicate high temperature and low pressure in that area.
What is the weather forecast?Utilizing science and technology to forecast the atmospheric conditions at a certain area and time is known as weather forecasting. Weather forecasting has been done sporadically for millennia and formally since the 19th century.
Meteorology is used to predict how the atmosphere will change at a certain location while quantitative data about the state of the atmosphere, land, and ocean are gathered to provide weather forecasts. Weather forecasts can be used for a huge range of purposes. Weather warnings are crucial forecasts because they serve to safeguard property and human life.
When temperature increases, pressure decreases. Hence, The measurement shows high temperature and low pressure.
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Global warming occurs because of increased greenhouse gases such as carbon dioxide in our atmosphere. Carbon dioxide forms carbonic acid when dissolved in water. The increase of carbonic acid in the ocean waters prevents sea creatures from making bones and shells. Based on the informationabove which of the following statements best explains what would occur. A.The ocean water would change its current so that the acidic water is relocated to another area and allow plankton and sea coral to survive. B.The ocean water would change its composition to reduce the amount of carbon dioxide contained and allow plankton and sea coral to survive. C.Plankton and sea coral would become extinct because of its inability to make adaptations fast enough to adjust to the changes in the environment. D.Plankton and sea coral would make immediate adaptations through genetic mutations to adjust to the changes in the environment.
Answer:
Explanation:
d
Plankton and sea coral would make immediate adaptations through genetic mutations to adjust to the changes in the environment.
How coral can survive in acidic environment of ocean?
Plankton and sea coral would make immediate adaptations through genetic mutations to adjust to the changes in the environment because of the acidic pH of water is destroying their body. If they can't mutate their selves, they will be killed and totally removed from the ocean.
So we can conclude that option D is the correct answer.
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PLEASE HELP, ASAP, I WILL GIVE BRAINIEST, NO LINKS OR YOU WILL BE REPORTED!
Answer:
uh I'm pretty sure number 1 part A is a. but im not sure of part b.
