Answer:
The variation and distribution of traits in a population depend on genetic and environmental factors. Genetic variation can result from mutations caused by environmental factors or errors in DNA replication, or from chromosomes swapping sections during meiosis.
Explanation:
Hope this helps!
Answer:
The variation and distribution of traits in a population depend on genetic and environmental factors. Genetic variation can result from mutations caused by environmental factors or errors in DNA replication, or from chromosomes swapping sections during meiosis.
Explanation:
Consider going around a horizontal turn to the right. If the coaster suddenly slipped off the track, what path would it follow? Draw a top-view sketch below.
Answer:
Explanation: It would go straight because objects in motion stay in motion and it would stay the same direction
Consider going around a horizontal turn to the right. If the coaster suddenly slipped off the track, It would go straight because objects in motion stay in motion and it would stay the same direction.
What is motion ?"Movement of any object from one position to another position with respect to the observer is called as Motion."
Motion is change of location or position of an object with respect to time. Change in motion is the result of an applied force. Motion is typically described in terms of velocity also seen as speed, acceleration, displacement, and time.
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What type of energy is stored in the bonds between atoms?
Question 1 options:
Thermal Energy
Nuclear energy
Light Energy
Chemical energy
please include explanation
Answer:
chemical energy
Explanation:
Energy, potential energy, is stored in the covalent bonds holding atoms together in the form of molecules. This is often called chemical energy.
Mike is doing a project for science class. He is making an analogy of a cell and relating it to the structure and function of a city. He is looking for a building to represent the mitochondria. Which building in a city has a similar function and would best represent the role of the mitochondria in the cell?
Answer: Mitochondria are organelles that make energy for a cell; they are inherited from ... In this chapter, we will look at the structure and function of the eukaryotic cell. ... to functions of a city to emphasize that all parts are needed. ... We begin by looking at ... cell, as he peered through a primitive microscope of his own construction.
Use the information and model to answer the following question.
Echippus is an early ancestor to modern horses that lived 40 million years ago. The organism had a short neck, a short tail and feet with four toes. After ten million years, the tail and neck became longer and one of the toes disappeared as evidenced by the fossil of Mesohippus. Evolution of these organisms continued for 20 million years up to the present day causing the organisms to have longer necks and one solid hoof.
Answer:
D
Explanation:
The fossil record shows that the mammals gradually evolved so that their toes became one large hoof so this variation must have been more useful for survival than many toes. The correct option is 1.
What is fossil record?Paleontologists, archaeologists, and geologists use the fossil record to place important events and species in the correct geologic era.
It is based on the Law of Superposition, which states that the bottom layers in undisturbed rock sequences are older than the top layers.
The neck and toes of early horse ancestors evolved in such a way that the neck and tail became longer and one of the toes disappeared over time. The fossil record demonstrates this, as Echippus had a short neck, a short tail, and four-toed feet.
The fossil record shows that mammals gradually evolved their toes into one large hoof, implying that this variation was more useful for survival than many toes.
Thus, the correct option is 1.
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Your question seems incomplete, the probable complete question is:
Echippus is an early ancestor to modern horses that lived 40 million years ago. The organism had a short neck and tail and also feet with four toes. After ten million years, the tail and neck became longer and one of the toes disappeared as seen in the Mesohippus. Evolution of these organisms continued 20 million years up to the present day with the organisms having longer necks and one solid hoof.
Which explanation can best be supported by the horse fossil record?
answer choices
The fossil record shows that the mammals gradually evolved so that their toes became one large hoof so this variation must have been more useful for survival than many toesThe fossil record shows that the mammals rapidly evolved so that their toes became one large hoof so this variation must have been more useful for survival than many toesThe fossil record shows that the mammals gradually evolved so that their toes became one large hoof so this variation must have been less useful for survival than many toesThe fossil record shows that the mammals rapidly evolved so that their toes became one large hoof so this variation must have been less useful for survival than many toesScientists discovered how to use x-rays over 100 years ago. They found that x-rays
could pass through soft parts of the human body but were stopped by hard body
parts. How do doctors use x-rays today?
A.to find injuries
B.to cure diseases
C.to prevent illnesses
D.to protect body parts
The graph represents the percentages of salt water and fresh water on Earth. What is the percentage of salt water?
1. 3 percent
2. 50 percent
3. 97 percent
4. 100 percent
Answer:
97.
Explanation:
Though the exact number is 96.5, we can round it up since its 5. When rounding by 10, 5 or more rounds up and 4 or less rounds down. So rounding up of 96.5 is 97. 3)
The percentage of salt water is 97 percent on Earth. Hence, option (3) is correct.
What is water distribution on Earth?Saline seawater makes up the majority of the water in the atmosphere and on the surface of the Earth, with fresh water making up less than 1% of the total. The majority of the water on Earth is saline or salt water, with an average salinity of 35 ‰ (or 3.5%, or around 34 grams of salts in 1 kg of saltwater), though this fluctuates slightly depending on the amount of runoff absorbed from nearby land.
Over 97% of the water on Earth comes from the oceans and marginal seas, saline groundwater, and water from saline closed lakes, however no closed lake holds a large amount of water on a global scale. Except when evaluating water quality in arid places, saline groundwater is rarely taken into account.
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You should have drawn the coaster following a straight line after it slipped off the track. Since that is the path it would take without the track, there must be an unbalanced force causing it to accelerate (turn) around the bend. What direction is that force pointing? Draw a top-view sketch of the force vectors below.
Answer:
uhhh... cool story bro?
Explanation:
Help me please it’s urgent
Answer:
I Think A But Im Not Sure About It
WILL GIVE BRAINLIEST IF YOUR RIGHT!!!! Please hurry
Answer:
1 = celsius 4 = watts 5 = displacement/time 6= distance/time
Explanation:
3= newtons 2= joules
Which component of a galaxy is found in the space between the stars and gives the appearance of bright, colorful clouds?(2 points)
1. Clouds
2. Gas
3. Object
4. Star
Answer:
stars
Explanation:
Answer: 4: stars
Explanation:
The transfer of heat between objects that are touching is called what?
Question 5 options:
Conduction
Convection
Radiation
Relativity
please include explanation
Answer:
conduction if i hold a hot cup the cup is giving heat which comes in contact with my hands warming my hands
HElP thank you pLeAsE
Answer:
Cell membrane
Explanation:
I've done this before
Which direction will heat be transferred?
Question 4 options:
From lower temperatures to higher temperatures
From higher temperatures to lower temperatures
Heat is never transferred, thermal energy is always constant.
In both directions equally
please include explanation
Answer:
From higher temperatures to lower temperatures.
Explanation: Heat goes from hot to cold. Never cold to hot.
who like countrie music give me a straghit awncer and i will create a nother one
True or False: Waves become stronger as they travel away from their source
Answer:
False
Explanation:
They become weaker as they travel away from their source.
a student built a fire using coal. the coal started to burn. which statement best describes the energy changes that occurred.
A. the chemical energy stored in the coal changed to thermal energy and light energy
B. the thermal energy stored in the coal changed to light energy and chemical energy.
C. the light energy and thermal energy stored in the coal changed to mechanical energy.
D. the light energy and thermal energy stored in the coal changed to chemical energy
Answer:
98% sure the answer is A, as coal, when burning, releases thermal and light energy through the fire.
Explanation:
If a bowler rolls the bowling ball down the alleyway with a force of 1,000N. The ball exerts a reaction force again the alleyway with approximately how much force? Explain your thinking behind this.
Answer:
1,000
Explanation:
because the ground won't stop the ball so it is always going to stay the same
Apple juice in a bottle has a volume of 475 cubic centimeters and a mass of 494 grams .Calculate its destiny
using this link, https://www.explorelearning.com/index.cfm?method=cResource.dspView&ResourceID=1053
Observe: Click Reset. Select Lights on and turn off Show rulers. Select Longitudinal waves. Check that the Amplitude is 10.0 cm, the Frequency is 1.00 Hz, and the Tension is 2.0 N. Set the Density to 1.0 kg/m, and click Play.
What is the motion of the hand?
Turn the lights off. What is the motion of the green dot?
Follow the motion of a single compression of the wave. How does the compression move?
Answer:
1 The hand is moving at a steady up and down motion.
2 The green dot is moving in a trait up and down motion
3 It is moving in a waving and calming motion
Explanation:
What is the connection between our sense of hearing and our balance?
.
What Human Body System(s) allow for our sense of hearing and balance to occur?
What factors (things that connect) effect (either positive or negative) our sense of
hearing?
What factors (things that connect) effect (either positive or negative) our balance?
What is the connection between our sense of taste and our sense smell?
What Human Body System(s) allow for our sense of taste and smell to occur?
What factors (things that connect) effect (either positive or negative) our sense of taste?
What factors (things that connect) effect (either positive or negative) our sense of smell?
Answer: hope this helps love. sorry about the questions not being in order
Explanation:
for the last question look below:
all senses are technically connected to each other through brain receptors and neurons. physiologically they influence each other. smell influences taste (you plug your nose to lessen the bad tasting medicine). sight influences taste (red and blue cookie are the exact same except for shape and color, but people will unconsciously go for the red before blue) and so forth. that's why there are psychological reactions to favorite foods, smells, etc, and also why phantom paibs exist
answer for the second question:
The ear is a sensory organ that picks up sound waves, allowing us to hear. It is also essential to our sense of balance: the organ of balance (the vestibular system) is found inside the inner ear. It is made up of three semicircular canals and two otolith organs, known as the utricle and the saccule.
answer for the first question:
When the head moves, fluid within the labyrinth moves and stimulates nerve endings that send impulses along the balance nerve to the brain. Those impulses are sent to the brain in equal amounts from both the right and left inner ear.
What Human Body System(s) allow for our sense of hearing and balance to occur?ФωФ
Answer: the ear is a sensory organ that picks up sound waves allowing us to hear
Explanation: a sensory organ that lets us hear.
Based on Newton’s 3rd Law of motion, if an archer shoots an arrow at the target, the action force is the bowstring against the arrow. Explain where the reaction force can be found.
Answer: the reaction force is the arrows push against the bow sting
Explanation:the two objects must react the same , bowstring and arrow.
James loves music. What would be an experiment he could conduct?
Dance to a cool song and record heart rate.
Write a song
Record his heart rate while listening to different types of music and record/compare the results.
Answer:
Record his heart rate while listening to different types of music and record/compare the results.
Answer:
Record his heart rate while listening to different types of music and record/compare the results.
Explanation:
What is the average kinetic energy of an object's particles?
Question 3 options:
Heat
Thermal Energy
Thermodynamics
Temperature
please include explanation
What is the average kinetic energy of an object's particles?
the answer is temperature