The light from many stars can be seen from Earth. But there is a time delay between the time the light is emitted from the star and when we see it here on Earth. Which of the following statements best explains why there is a delay?
A. Stars twinkle, so they give off light at regular intervals.
B.The stars’ light is not bright enough to reach Earth immediately.
C.Stars are light-years away from Earth, so light takes time to reach our planet.
D.Earth’s atmosphere is too thick for light to reach the surface as soon as it is emitted.
HELP ME PLEASE!!!!!!
Answer:
C
Explanation:
.
Which of the following does the blood carry to the cells of the body?
carbon dioxide and wastes
oxygen and nutrients
sounds and smells
information from the senses
Answer:
oxygen and nutrients
Explanation:
blood carries the oxygen and nutrients
Does anyone know an interesting fact about Protists?
Answer: Oh I know one fact about them! They cause diseases.
Hope it helps!
Explanation:
Which letter best represents the wavelength?
A
B
C
D
What is the role of photosynthesis in the flow on energy throughout an ecosystem?
Hello!! I'm always here to help!!
_________________________
The one-way flow of energy through the biosphere is made possible through photosynthesis. Plants convert solar energy into sugars, which they use to power themselves and other organisms. Carbon and oxygen nutrients are also cycled through the biosphere as a result of photosynthesis.
_________________________
Have A great Day!!
The author of the passage would most likely agree that
Answer:
D) Scientific investigations can show how the process of photosynthesis occurs.
Explanation:
I hope this helps.
Also, may I please have brainliest.
A A A A A A A AA A A A A A A A A A A A
Explanation:
What type of relationship do a clownfish and sea anemone have?
11. Fish are most closely related to which other vertebate? Choose the most likely answer from studying the embryos above. *
A. Humans
B. Birds
C. Reptiles
D. Amphibians
Which detail from the passage best explains why plants photosynthesize?
I need help im so tired that I cant even think so PPPPPPPPLLLLLLLLZZZZZZ help
c) In the system you created in (a), give an example of a sudden change that would affect the stability of the system. Explain what may happen. (2 points)
Think of an example of a natural disaster or human-caused environmental change that could affect the animals you chose in part (a).
All the littering in the forests and in the lakes, oceans, and rivers can take. over
Which of the following may be caused by molds?
Allergy
Pneumonia
Cystic fibrosis
Huntington's disease
Answer:
Pneumonia
Explanation:
This comes from the cells in pheumonia that make every thing around it turn to a mold like substance
Which lists the main components of Darwin’s theory of evolution?
Random mutations drive evolution; the evolution of a population happens slowly; organisms have common ancestors; organisms do not change.
Natural selection drives evolution; the evolution of a population happens slowly; organisms have common ancestors; organisms change over time.
Natural selection drives evolution; the evolution of a population happens rapidly; organisms have common ancestors; organisms change over time.
Random mutations drive evolution; the evolution of a population happens rapidly; organisms have common ancestors; organisms do not change.
Answer:
Natural selection drives evolution; the evolution of a population happens rapidly; organisms have common ancestors; organisms change over time.
Identify each wave interaction based on how it changes direction.
The wave changes direction as it bends and scatters.
The wave changes direction as it changes its speed.
The wave changes direction at an angle equal to the angle of incidence.
The wave changes direction as it bends and scatters. - Refraction because it changes in direction of the waves that occur when waves travel from one medium to another.
The wave changes direction as it changes its speed. - Refraction because the waves change speed when they pass across the boundary between two different substances, such as the light waves refracting when they pass the air to glass.
The wave changes direction at an angle equal to the angle of incidence. -reflection because if a wave hits a mirror at an angel of 36, and it will be reflected at the same angel of 36.
Explanation: Hope this helps, Have a good day!
The wave changes direction as it bends and scatters is known as reflection, the wave changes direction as it changes its speed is known as refraction, and the wave changes direction at an angle equal to the angle of incidence is diffraction.
What are wave interactions?When waves interact, they can change direction in different ways. Here are the three ways that waves can change direction:
1. Reflection: The wave changes direction at an angle equal to the angle of incidence. This happens when a wave hits a barrier or a surface that it can't pass through. The angle of incidence is the angle between the incoming wave and the normal, which is an imaginary line perpendicular to the surface.
2. Refraction: The wave changes direction as it changes its speed. This happens when a wave passes from one medium to another, and the speed of the wave changes. When this happens, the wave bends towards or away from the normal, depending on the direction of the change in speed.
3. Diffraction: The wave changes direction as it bends and scatters. This happens when a wave encounters an obstacle or a gap in a barrier that is comparable in size to the wavelength of the wave. When this happens, the wave bends around the obstacle or spreads out through the gap.
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The author of the passage would most likely agree that
A
most scientists don't believe that plants release oxygen.
B
the hypothesis that plants need light has been disproven by evidence.
C
Bromthymol blue does not reliably indicate the presence of carbon
dioxide.
D
scientific investigations can show how the process of photosynthesis occurs.
What are some ways that animal structure and functions differ depending on the animal’s environment?
Choose all that apply.
A: Feet or legs for moving in the environment
B: Mouths or teeth for eating in the environment
C: Instincts for knowing how to have offspring
D: Body coverings for hiding from prey in the environment
(repost because i forgot to put the answers last time :/)
Answer:
A, B, and D.
Explanation:
These structures of animals differ because of the enviroment that they are in. However, most animals will not have different instincts for reproducing/knowing how to have offspring. So every choice besides C.
Choose all the answers that apply.
Clouds:
trap sunlight in the atmosphere
cause precipitation
are caused by the Coriolis effect
reflect sunlight back into space
form from condensation
Answer:
The first, second, and last ones are correct.
Explanation:
I dont really need an explanation...
7.Which of the following animal pairs are the most closely related (or are most likely to share a very recent common ancestor)? *
A. Hippopotamus and Fish
B. Bird and Fly
C. Zebra and Horse
D. Snake and Pangolin
What are the pros and cons of solar power?
How would you describe the relationship between the eagle and the hare? Are there any patterns in their interactions with one another?
Answer:
ExplaHow would you describe the relationship between the eagle and the hare? Are there any patterns in their interactions with one another?nation:
solar power:
description: renewable? non-renewable?
pros and cons
where it is found
how it is recovered
brief history
how it is stored in the source
how energy is released
economic impact
environmental impact
future of energy source
i know this is a lot, just answer whatever you can!
Answer:
Where it is found:
China, United States, Germany, Japan
It is renewable
How it is recovered:
Through re-use, mechanical recycling, or chemical recycling
Explanation:
Which foods are examples of complex carbohydrates? (Select all that apply.)
-white bread
-wheat
-cereal
-fruit juice concentrate
-oatmeal
-barley
Answer:
wheat,oatmeal,barley
Explanation:
Examples of Complex Carbs
Whole grains such as brown rice, wild rice, oatmeal, and whole-grain (rather than pearled) barley.
Grain-like foods such as quinoa (a seed) and buckwheat (a grass)
Starchy vegetables including potatoes, sweet potatoes, and corn.
The carbohydrates are defined as the main suppliers of energy to the body. Most of the carbohydrates come from the complex carbohydrates and natural sugars. Wheat, barley and oatmeal are examples of the complex carbohydrates.
What are complex carbohydrates?The carbohydrates are the macronutrients by which our body obtains the energy. They are called carbohydrates as they contain carbon, hydrogen and oxygen. The complex carbohydrates are made up of sugar molecules which are strung together in long, complex chains.
The complex carbohydrates are found in foods such as peas, beans, whole grains and vegetables. Both the simple and complex carbohydrates are turned to glucose in the body and are used as energy.
Here among the given examples, the complex carbohydrates are Wheat, barley and oatmeal and others are simple carbohydrates. The brown rice, oats, wild rice, starch etc. are also complex carbohydrates.
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Humans and dogs evolved from a common ancestor. Which pieces of evidence would support this? Select two options.
Both of their adult forms look very similar.
They both had a tail as an embryo.
Their arm and leg structure is similar, but may have a different function.
There are fossils of an organism that is half man, half dog in the fossil records.
Both had gill slits when they were born.
Answer:
They both had a tail as an embryo.
Their arm and leg structure is similar but may have a different function.
Explanation:
They both had a tail as an embryo.
Vestigial structures are those body parts that have lost or reduced their original function during the evolution of a species. These vestigial structures might be found in many animals, including human beings. Vestigial structures were plenty functional for common ancestors. But with evolution, they degenerated, stunted, and became rudimentary for some of the new species.
During the first 4 months of embryogenesis, all mammals have a tail at some point in their development. Dogs develop this structure and keep it during their whole lives, but humans lose it with time during embryogenesis. The tail disappears, and its forming vertebras get fussed with each other composing the coccyx, which represents a vestigial structure. This tailbone is the remnant of a missing tail.
In many animals, the function of the tail is to stabilize, equilibrate and mobilize. But in humans, the coccyx, located at the end of the vertebral column, has lost this original function.
Their arm and leg structure is similar but may have a different function.
The fact that whales, humans, and dogs all have the same bones in the same order, but they matured differently in later embryological development, is an example of homologous characters.
Homologous characters have the same fundamental structures. They also share the same relations with adjacent structures, and they have the same embryological development.
These structures might show variations between organisms exhibiting them, according to their function and to the environment in which the organism lives.
These homologous characters are common in organisms related and that share a common ancestor.
They both had a tail as an embryo.
Can Someone help me with this :)
Answer:
a.
Explanation:
contour maps show the elevations of an area.
The image below is an example of
A. reflection
B. refraction
C. absorption
D. diffusion
please help me
Sorry for the android quality photo
The fossil record includes all of the fossils discovered on Earth. How is the fossil record organized?
A. Size
B. Age
C. Shape
D. Color
Answer:
The answer is C. Shape.
Explanation:
Geologists use a method called radiometric dating to determine the exact age of rocks and fossils in each layer of rock.
Question 1 (1 point)
An earthworm is crawling on top of the grass on a very sunny afternoon. It will immediately begin to dig back under the soil because of its sensitivity to light. What type of behavior is this?
A. inherited
B. learned
C. mimicked
D. imprinted
Question 2 (1 point)
Jody notices a trend in the information in the table. The trend that she sees suggests that
A. warm-blooded animals usually need to learn how to swim.
B. animals born in water usually need to learn how to swim.
C. warm-blooded animals usually know how to swim instinctively.
D. animals born on land usually need to learn how to swim.
Question 3 (1 point)
A wolf attacks a porcupine and gets stung with quills. The wolf no longer attacks porcupines. What type of behavior does the wolf exhibit?
A. innate behavior
B. social behavior
C. imitation
D. trial and error learning
Question 4 (1 point)
What behavior allows newborn animals to recognize and follow the first moving object they see?
A. conditioning
B. courting
C. mimicking
D. imprinting
Question 5 (1 point)
Circus and animal trainers rely on conditioning to train animals to perform tricks. How does this conditioning work?
A. The trainer uses a stimulus, paired with a reward to get the response they want.
B. The animals inherit these amazing abilities from their parents.
C. The trainers can imprint certain behaviors on the very young animals.
D. The animals are punished for their natural behaviors.
Question 6 (1 point)
What is the difference between learned and inherited behavior?
A. Learned behavior is something that animals are born with. Inherited behavior is taught to a newborn animal.
B. Learned behavior is something that cannot change over time. Inherited behavior changes over time.
C. Learned behavior is obtained during an animal’s life span. Inherited behavior is something that animals are born with.
D. Learned behavior is passed down through each generation. Inherited behavior is obtained from watching other species.
Question 7 (1 point)
Which of the following is a learned behavior?
A. A person touching a red burner on the stove and pulling it back quickly.
B. Baby ducks follow their mother immediately after birth.
C. Infant babies breathe as soon as they are born
Question 8 (1 point)
You approach the edge of a pond filled with ducks. The ducks are swimming, but when they see you, they approach the shore and congregate around you.
What might best explain this behavior?
A. The ducks have associated people with food handouts and so they become close.
B. The ducks are diurnally migrating to humans.
C. The ducks are competing for territories on the shore.
D. The ducks have imprinted on the humans.
Question 9 (1 point)
A study of cuckoos found that all cuckoos sing the same song, even when they have no contact with other cuckoos. What does this indicate?
A. Cuckoos are born with an innate ability to sing a song.
B. Cuckoos must learn the cuckoo song from other cuckoos.
C. Cuckoos sing the song because of internal stimuli.
D. Cuckoos sing the song because of external stimuli.
Question 10 (1 point)
While on a family outing at the beach, Ben noticed that seagulls tend to hover over family groups. The gulls were often rewarded with food by the families. The seagulls are exhibiting —
A. An imprinted behavior.
B. A random behavior instinct.
C. A behavior learned through conditioning.
D. An instinctual inherited behavior.
Question 11 (1 point)
Which of the following is an inherited behavior?
A. Birds that nest near highways do not respond to traffic noise.
B. Kindergarten students share different toys.
C. Knowledge of how to play the piano.
D. Infant babies breathe as soon as they are born.
Question 12 (1 point)
A male fiddler crab waves his claw to attract a female crab.
What is this type of complex behavior called?
A. reflex
B. instinct
C. learned behavior
D. inborn behavior
Answer:
B learned.
A
D
D
A
C
B
A
C
C
D
A
All of the following are TRUE except:
Non-living things cannot affect living things in an environment.
Ecology examines how everything is connected.
The environment contains all the materials and energy needed for living organisms to carry out their life activities.
Living things and their environment affect each other.
Answer: I might be wrong, but I'm pretty sure it's C/ The environment contains all the materials and energy needed for living organisms to carry out their life activities.
Explanation:
I am pretty sure the awnser is C
Can Someone help me with this :) and NO LINKS
Answer:
A
Explanation:
it's showing the elevations of different surface features
The hypothetical explosion that created the universe is called the big bash.
Please select the best answer from the choices provided
T
F