Answer:
the nervous system
Explanation:
Please some one help, I need this really soon!!
Answer:organic molecules and cations
next one is no effect
Explanation: edge
The theory of evolution has changed over time. Initially, Lamarck believed that organisms developed traits in response to a changing environment to improve their chances of survival. Later Darwin proposed that organisms that already possessed traits suitable to a changing environment were more likely to survive and reproduce.
Which of the following does not explain why the theory of evolution has changed?
A. Lamarck’s theory was discarded when new scientific information became available.
B. Darwin collected empirical evidence to support that organisms with favorable traits survived and reproduced.
C. The theory of evolution became a scientific law after much debate and confirmation in the scientific community.
D. Other scientists such as Peter and Rosemary Grant have collected additional empirical evidence that supports Darwin’s findings.
Beth wrote the following description of the life cycle of non-flowering, seed-bearing plants. Read her description and find the mistake.
"Non-flowering, seed-bearing plants go through four major stages in their life cycles. The first stage is when the plant is a seed from a cone. The second stage is when the plant sprouts out of the seed and the cones begin to grow. The third stage is when the plant is a seedling. The fourth stage is when the plant is a bigger seedling."
What statement corrects the error in Beth's report?
There are five stages in the life cycle of non-flowering, seed-bearing plants, not four.
The first stage is when roots will grow out of the seed and down into the soil.
The third stage is when the plant sprouts out of the seed and the flower grows.
The fourth stage is when the plant is an adult plant growing leaves and cones which produce more seeds.
Answer:hi
Explanation:
hi
A student is studying a gray pine (conifer/gymnosperms), an apple tree and an avocado tree. After conducting research about them she discovers some similarities and differences between them. What are some of the differences and similarities she probably discovered? (Hints: think about how they reproduce)
What is a soil Profile
Answer: In simple terms, a Soil Profile is a cross section of all the layers of soil which includes topsoil, subsoil and parent rock
Explanation:
Read these sentences from the text.
After Eris was discovered, scientists had to make a decision. Either Eris was the 10th planet in the solar system or it was not a planet at all! And if Eris weren’t a planet, could Pluto be considered one?
Scientists made new rules for what is counted as a planet, and decided that neither Pluto nor Eris qualified.
Based on this information, what did the discovery of Eris make scientists do?
a
The discovery of Eris made scientists rethink the rules for what is counted as a star.
b
The discovery of Eris made scientists rethink the rules for what is counted as a dwarf planet.
c
The discovery of Eris made scientists rethink the rules for what is counted as a planet.
d
The discovery of Eris made scientists add more planets to the group of planets.
Answer:
The answer is C
Explanation:
The reason why is because in the text it doesn't mention anything about these two planets becoming a dwarf planet so it can't be B (excuse the pun) and it doesn't mention anything about the two planets being a star so it can't be A and answer D they did not add more planet to the group of planets so it has to be C.
identify and describe two technologies that have changed the way humans influence the inheritance of desired traits in plants and/or animals.
Africa and South America are 4,000 km apart. If the plates move away from each other at a rate of 30 km per 1 million years, how long would it take for them to travel 4,000 km?
Rate = Distance ÷ Time Distance = Rate ÷ Time Time = Distance ÷ Rate
The subject is science I just cant find it-
Answer:
The majority of the research shows that the plates move at the average rate of between approximately 0.60 cm/yr to 10 cm/yr. Some sources state that in the North Atlantic, the rate of movement is only about 1 cm (about 0.4 in) per year, while in the Pacific it amounts to more than 4 cm (almost 2 in) annually, while others say that plates, in general, travel from 5 to 10 cm/yr.

The Eurasian Plate is moving away from the North American Plate at a rate the is about 3cm per year. That is about the same rate at which your fingernails will grow.

The distance from New York to London is in 3459 miles (5567 km). What will the distance be in 5 million years?.


The distance from New York to London in 5 million years will be 3552 miles (5717 km). So if today it takes us 7 hours and 30 minutes to fly to London at a speed of 460 miles per hour, in 5 million years at the same rate of speed will take us close to 8 hours.
A science class is taking a census of the organisms that live in a pond by their school. They lowered the bucket into the pond to a depth of 3 feet and drew up a liter of pond water. They recorded the organisms visible in the bucket. They then took a drop of the water and placed it under a microscope. They recorded the organisms visible under the microscope.
The class found many nonliving things in the sample of pond water. Which of these is a way that the students can distinguish living from nonliving things?
Choose the correct answer.
A) Living things are made up of cells while nonliving things are not.
B) Living things grow larger with time while nonliving things do not.
C) Living things breathe air and eat food while nonliving things do not.
D) Living things can move from place to place while nonliving things cannot.
i need help on two of these please i give 20 points
Answer: 13-d :D
Explanation: A diaphragm allows different amounts of light to pass through the slide.
A scientist wants to know how the distance from a nearby lake affects the amount of nitrogen found in the soil. She collects soil samples at various distances from the lake and measures the amount of nitrogen in the sample What is the manipulated variable in this experiment?
A. The distance from the lake
B. The size of the lake
C. The total number of samples
D. The amount of nitrogen in each sample
Answer: I would think A (The distance from the lake) but if I'm wrong please let me know and ill fix it ASAP!
Explanation: A manipulated variable is an independent variable subject to the changes of an experiment to analyze its effect on a dependent variable.
HELPPPPPPPppppppppppppppppppp
Answer:
I circled the ones you need to circle and such, you just need to copy what I did.
Explain how science uses fossil evidence to support the theory of evolution
Answer:
The fossil record
Fossil remains have been found in rocks of all ages. Fossils of the simplest organisms are found in the oldest rocks, and fossils of more complex organisms in the newest rocks. This supports Darwin's theory of evolution, which states that simple life forms gradually evolved into more complex ones.
Evidence for early forms of life comes from fossils. By studying fossils, scientists can learn how much (or how little) organisms have changed as life developed on Earth.
There are gaps in the fossil record because many early forms of life were soft-bodied, which means that they have left few traces behind. What traces there were may have been destroyed by geological activity. This is why scientists cannot be certain about how life began.
Fossils provide a snap shot of the past and allow us to study how much or how little organisms have changed as life developed on Earth.
The theory of Evolution is supported by the evidence given by fossil study. Fossils are the preserved remains which helps us to know more about the past times.
What is the Theory of Evolution?
The theory of Evolution explains that the environmental changes lead to the gradual change in traits which enhance the survival of organisms in environment. This explains natural selection. This theory has been proposed by Charles Darwin.
Fossils provide evidence about the organisms from the past that are not the same as those found today. Fossils are the preserved remains or traces of organisms which are important evidence of evolution.
Fossils show a progression of evolution. Scientists determine the age of fossils through radioactive decay which helps in categorize them from all over the world to determine when the organisms lived.
Learn more about Fossils here:
https://brainly.com/question/6867325
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PLEASE HELP DUE SOON TYSM--A teacher is helping her class make an accurate scale model of the solar system on school grounds. The teacher says that the chalkboard will represent the Sun. She then hangs a painted softball 5.8 meters from the chalkboard to represent Mercury. At the back of the class, 15 meters from the chalkboard, the teacher hangs a blue-painted basketball to represent the Earth. About how far away from the chalkboard should the class mount the golf ball that will represent Neptune?
A.
450 meters
B.
4,500 meters
C.
4.5 meters
D.
45 meters
Answer:
It should be 450 meters away
I believe the correct alternative is: a) 450 meters
I apologize if this is incorrect. I hope you have a lovely day!
Which of the Texas ecoregions is effected the most by Hurricanes?
Part D
The lineage of pea plants produced round seeds for four generations. The plants that fertilized these pea plants also produced round seeds. However, in the fifth generation, the plant produced to two plants with wrinkled seeds. Can that be possible? Explain your answer using your pedigree chart.
Answer:
Explanation: black white gray black black white
What was invented that allowed tiny organisms to be classified
describe how the force of gravity acts upon an object, and give an example.
This weather map showed the temperature (in °F) in the United States on a winter day. It also includes two pressure systems, labeled "H" and "L." Explain where weather fronts are most likely located, and predict the weather at each pressure system.
Read the assignment carefully and make sure you answer each part of the question or questions.
After you've written your response, go back and read it again to make sure your thoughts are clear.
Please someone answer I need help.
Answer: The Low Pressure systems will usually be found more North where it gets verycold but can really happen anywhere, and High pressure systems are usually found in the Southwest during winter.
Explanation:
High Pressure:A high pressure system has higher pressure at its center than the areas around it. Winds blow away from high pressure. Swirling in the opposite direction from a low pressure system, the winds of a high pressure system rotate clockwise north of the equator and counterclockwise south of the equator. This is called anticyclonic flow. Air from higher in the atmosphere sinks down to fill the space left as air is blown outward. On a weather map, you may notice a blue H, denoting the location of a high pressure system.
Low Pressure:
A low pressure system has lower pressure at its center than the areas around it. Winds blow towards the low pressure, and the air rises in the atmosphere where they meet. As the air rises, the water vapor within it condenses, forming clouds and often precipitation. Because of Earth’s spin and the Coriolis effect, winds of a low pressure system swirl counterclockwise north of the equator and clockwise south of the equator. This is called cyclonic flow. On weather maps, a low pressure system is labeled with red L.
1. What kinds of pollution do you know? Which is the worst? Discuss in group.
2. What are fossil fuels? Give examples. Where are they used? Can they be replaced?
3. Some factories dump waste water in rivers and ocean. How can we prevent this?
4. People throw away tons of garbage everyday. How can we reduce the amount of garbage?
5. Do you drink bottled water? Why or why not? What is its effect on the environment?
pls 3-5 sentence and then explain briefly the answer. ty
Answer:
1. There's air pollution, water pollution, noise pollution, and light pollution. The worst pollution is air pollution because it can cause severe health problems like respiratory diseases or even cancer.
2. Fossil fuels are resources that are formed from the remains of dead plants and animals. An example would be coal, oil, and natural gas. These fuels are used to generate electricity, power vehicles, heat homes and buildings. Yes, there many other energy sources that can replace fossil fuels.
3. One way to prevent factories from dumping waste water in rivers and oceans is to implement stricter regulations and penalties for those who violate them.
4. One of the best ways to reduce the amount of garbage is to reduce, reuse, and recycle.
5. Yes, I drink bottled water because it's more water to drink from a bottle and its effect on the environment is recycling and being reused.
I got stung by a scorpion in my sleep. Why??? By the way it really hurts!!!
What best describes ribosomes?
Ribosomes are cellular structures that synthesize proteins from amino acids. They are composed of ribosomal RNA and proteins and are found in both prokaryotic and eukaryotic cells.
Ribosomes are essential for gene expression and cell growth. They can be free in the cytoplasm or bound to the endoplasmic reticulum or the nuclear envelope.
An example of a ribosome function is the translation of a messenger RNA (mRNA) sequence into a polypeptide chain. The ribosome reads the mRNA codons and matchesthem with the corresponding transfer RNA (tRNA) anticodons that carry the amino acids. The ribosome then forms a peptide bond between the amino acids and releases the tRNA. This process continues until the ribosome reaches a stop codon on the mRNA and terminates the protein synthesis.
Answer:
A ribosome is a intercellular structure made of RNA and protein
Explanation:
Which arrow or arrows represent a release of carbon dioxide? What process is occurring at the arrow(s) you selected?
Arrow 'f' releases carbon dioxide.
Answer:
F I think I am not sure though hope I helped.
A. What is the effect of short-wavelength radiation?
Answer:
Shortwave radiation (visible light) contains a lot of energy; longwave radiation (infrared light) contains less energy than shortwave radiation (shortwave radiation has a shorter wavelength than longwave radation). ... Once in the Earth's atmosphere, clouds and the surface absorb the solar energy.
Explanation:
Select the 4 examples of physical weathering from the list below.
A) The color of a rock changes over time as it is exposed to air and water.
B) The top of a mountain becomes rounded over tens of thousands of years.
C) A sidewalk is broken by the roots of the tree below it.
D) A cave is created by limestone dissolving in water.
E) Water freezes in a crack in a rock causing the rock to split in two.
F) Small rocks on a beach tumble against each other as the tides move in and out.
If I get it right I'll mark you brainliest, I originally selected ABEF but got 6.667/10
Answer:
A, C, D, E
Explanation:
A: A rock being shaped by water and air are both examples of physical weathering, so it is one answer.
C: Roots of trees or plants affecting rocks is another example of physical weathering, so it is another answer.
D: Water is shaping the limestone to make a cave, so it is physical weathering.
E: Water freezing in cracks of rocks can, over time, definitely crack the rock into several pieces or two. So this is the last answer and example of physical weathering.
I hope it helped! ;)
Answer:
b c e f
Explanation:
these are physical ı think
How does carbon enter the atmosphere?
(MULTIPLE CHOICE)
A). plant stomata
B). release of CO2 by the oceans
C). animal and human respiration
D). transpiration
E). decomposition of limestone
F). burning of fossil fuels
Answer:
B, C, E, & F
Explanation:
All have to deal with a release of energy.
Light ray 1 strikes the smooth surface of a mirror as shown below.
**IMAGE BELOW**
Which of the following is the reflected ray for ray 1?
A) Ray 2
B) Ray 3
C) Ray 4
D) Ray 5
Answer:
The answer is D. Ray 5
Explanation:
Its because you have to angle the mirror so that it will reflect
Answer:
naw man its ray 2
Explanation:
Write a paragraph (4-5 sentences) explaining how natural selection and selective breeding are related?
PLEASE IS SCIENCE 8th GRADE
balanced, which means that the forces pushing the rock in one direction are equal to the forces pushing the rock in the opposite direction. This is why the rock remains motionless on the flat sidewalk.
In the video, you saw how plants adapt themselves in extreme climates. Do you think research on inhospitable plants can help botanists in other industries? Explain your answer
https://cdn.app.edmentum.com/EdAssets/956622d5d1174b5fa90df6a69bc43b73?ts=636048449854930000
Answer:Plants have adaptations to help them survive (live and grow) in different areas. Adaptations are special features that allow a plant or animal to live in a particular place or habitat. These adaptations might make it very difficult for the plant to survive in a different place. This explains why certain plants are found in one area, but not in another. For example, you wouldn't see a cactus living in the Arctic. Nor would you see lots of really tall trees living in grasslands.
Explanation:
Answer:
These plants grow in very difficult environments. So, researching their genes may help botanists working in agricultural areas develop crops that can grow in inhospitable areas. Also, understanding how these plants survive in harsh conditions may help conservation scientists protect plants if their environments change.
Explanation:
I add the answer that was given by avaaaaaaa avatar, so that everybody could see it