Answer: A less dense and rises
Explanation:
Convection is a type of heat transfer happens when there is a movement of fluid (liquid or gas) in which convection currents are produced due to the movement of hot fluid upwards and cold fluid downwards. This happens as the density of hot fluid decreases due to presence of less number of mmolecules per unit volume. As the hot liquid becomes less dense, it starts moving upwards.
Thus convection occurs because heated material becomes less dense and rises.
The primary function of DNA is to
(ONLY ANSWER IF YOU KNOW ITS RIGHT)
direct RNA to make lipids
store and transmit genetic information
control chemical processes within the cell
prevent mutations
Question 11 (1 point)
What does this diagram represent?
When the dry and wet bulb temperatures are far apart. the humidity is high.
True
False
what means biotic component?
PLSPLSPLS HELP ASAP
a scientist discovers that the acidity of a lake increases overtime. at the same time, its population of Minnows grew smaller. when the adicity of the lake return to normal, The Minnow population recover.
In what two ways can the minnow population be used to monitor the Lakes water quality?
Answer:
In the above case we can understand that,
If the pH of the water increases the population of Minnows decreases.Minnows population can be determined by the acidity of the lake water.Minnows cannot survive in basic water.Answer: The answer is "It can be used to identify possible pH changes." and "It can be used as a bioindicator."
Explanation:
I got it right.
What is the relationship between a person's PULSE RATE and his or her HEART BEAT? A. The heart beat is always double the pulse rate. B. The heart beat and pulse rate may change, but are always equal. C. The heart beat is always half of the pulse rate. D. There is no relationship between the heart beat and the pulse rate.
Answer:
B. The heart beat and pulse rate may change, but are always equal.
Hope this helps :D Have a fantastic day
Which of the following resources are a reason for competition? Select ALL correct answers.
mates for reproduction
prey for food
space to live
shelter from predators
light for energy
Answer:
all of these things can be and in fact are reasons for competition
Answer:
Explanation:
A body cell has been growing and synthesizing proteins. In the nucleus of this body cell, DNA replication is taking place, and a copy of the cell's genetic material is copied. Which of the following is the best conclusion you can make about the life cycle of this cell?
The best conclusion you can make about the life cycle of this cell is that the cell is in the S phase of interphase and will move next to the G2 phase.
S phase (Synthesis Phase) is the phase of the cell cycle in which all of the chromosomes (DNA) are replicated within the nucleus. During this phase, the DNA is effectively doubled as each chromosome contains two sister chromatids. After the S phase, the cell enters the G2 phase where various proteins (such as microtubules) are synthesized.
Sarah was testing paper towels to see which brand was the strongest. She used five brands of towels in her experiment. She wet the towels and then used them to hold beans. She counted the number of beans the wet paper towels could hold without tearing. When the experiment was completed, Sarah compared the towel strength using a bar graph. What was her label on the X-axis?
Answer:
I think it is 6 I think maybe
Answer: Explanation:
on the x-axis is the paper towels. (1, 2, 3, 4, 5)
y-axis will be the beans, seeing how much it held on those 5 towels.
2) A person with hardened arteries will
a) have great blood flow
c)have low elasticity in their blood vessels
b) have a normal blood pressure
d) be a low risk for a heart attack since their blood vessels are strong
Answer:
B!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
Explanation:
:-) :-) :-) :-) :-) :-) :-) :-) :-)
Please help
Answer:
i cant read this pls change the lebgth of the problem :/
Answer:
Column 2 and Column 3
Explanation:
Alejandro wants to find the speed of his car in meters per second. His car traveled 50 cm. It took 5 seconds to travel 50 cm. How fast did his car go?
Answer:
0.1m/s
Explanation:
Speed can be calculated using the formula;
Speed (m/s) = distance (m) ÷ time (s)
According to the information provided in this question, Alejandro's car travels 50cm in 5seconds i.e. the distance traveled is 50cm and the time is 5s.
However, the question requires the distance to be in metres (m). We, therefore, need to convert 50cm to m by dividing by 100.
100cm = 1m
50cm = 50/100
= 0.5metres.
Speed = 0.5/5
Speed = 0.1m/s.
The car travels as fast as 0.1m/s.
first section of the digestive sistem
Answer: Mouth
Explanation:
Answer:
Mouth
Explanation:
The mouth is the beginning of the digestive tract. In fact, digestion starts here as soon as you take the first bite of a meal. Chewing breaks the food into pieces that are more easily digested, while saliva mixes with food to begin the process of breaking it down into a form your body can absorb and use
Would you expect the stomata of a desert cactus or the stomata of a water lily plant to close during the day?
The stomata of a desert cactus will close during the day.
STOMATA:
The stomata (singular- stoma) are structures on the leaves of a plant that helps in gaseous exchange i.e. entry and exit of CO2 and O2 gases. The stomata, however, when opened allows the passage of water vapor from the plant. Hence, plants utilize the opening and closing of stomata to regulate water loss. Desert cactus is a xerophytic plant meaning that they can survive in low water conditions. One way they adapt to their desert environment, which is characterized by low humidity, is by the closure of their stomata during the day. Therefore, the stomata of a desert cactus will close during the day.Learn more at: https://brainly.com/question/3387375?referrer=searchResults
answer 18 and 19 Please help I will mark brainliest
Answer:
18. J.
19. B 23 chromosomes
Answer:
23
Explanation:
answer 18 and 19 Please help I will mark brainliest
Plz help me its only 1 question
Answer:
the first one
Explanation:
the car slowly started and accelerated
Its the second one. Since its continually accelerating.
Which of the following areas of science would
allow someone to obtain a job for NASA?
A. Physical Science
B. Life Science
C. Social Science
D. Medical Science
Can anyone help me please
True or false: recycling can positively impact Earth's spheres.
Answer:
true
Explanation:
Answer:
True
Explanation:
Recycling provides big benefits to the planet's atmosphere by reducing overall materials consumption. ... The more we recycle, the more we reduce the impacts of global warming on the earth's climate. Animal Safety. Ocean-dwelling animals are threatened by the large amounts of plastic trash dumped into the seas every year.
What are the processes that
turn a sedimentary rock
into a metamorphic rock?
Can enzymes work to catalyze another reaction once one is complete?
When air has reached its dew point
A) Air has to be cold
B)Air can hold more water
C)Air is saturated
D)Air has low humidity
Answer:
When air has reached the dew-point temperature at a particular pressure, the water vapor in the air is in equilibrium with liquid water, meaning water vapor is condensing at the same rate at which liquid water is evaporating.....
I WILL GIVE BRAINLIEST
Use the image to answer the question.
The image shows a food chain. An arrow points from grass to a grasshopper. An arrow points from the grasshopper to a lizard. An arrow points from the lizard to a hawk. An arrow points from the hawk to a fox.
What would happen if the number of grasshoppers in this food chain decreased?
A.
The amount of grass would increase.
B.
The number of lizards would increase.
C.
The amount of grass would decrease.
D.
The number of hawks would increase.
Answer:
a, the amount of grass would increase
Explanation:
if the grasshopper is the one in this diagram eating the grass, and suddenly there were fewer grasshoppers to do that, the grass would increase because more of it can grow without being eaten
give two examples of asexual Productions
Answer:
Asexual Reproduction Examples
Blackworms or mudworms reproduce through fragmentation. Hydras reproduce through budding. Organisms such as copperheads undergo parthenogenesis. Sugarcane can be grown through v
There is a belief that there are as many neurons in the human body as there are stars in the Milky Way Galaxy. Do you believe this? How would you react on this?
Answer:
I do believe this. If you take the amount of neurons in the average adult body and expand them to the size of a say a blueberry It would expand to be the approximately the size of the sun
Explanation:
The given statement is true. It is a surprising fact that helps a person to believe that his brain has the power to take him beyond expectations.
What are Neurons?These are the nerve cell that is found in the brain and nerve tissue in the body.It has been estimated that there are 100 billion neurons in the human brain which is about the number of stars in our Galaxy.The human brain is very complex and this complexity comes from such a huge number of neurons.
Therefore, the given statement is true. It is a surprising fact that helps a person to believe that his brain has the power to take him beyond expectations.
Learn more about the human brain:
https://brainly.com/question/1282105
Which characteristic is not common to both prokaryotic cells and eukaryotic cells?
How Biochemistry and Biometry are interrelated to each other?
Answer: The biochemistry is the scientific study of the chemical substances.
Explanation:
In biochemistry the chemical composition of the chemical substances and their involvement in the vital body processes in living organisms is studied. The function and structure of the chemical compounds and their associated biomolecules is studied thoroughly. The biochemistry is studied at the molecular and the atomic level. In biometry the structural dimensions of the biomolecules is studied. This way the biochemistry is linked with biometry.
What is mass transport across the cell membrane
Why are there more producers than nutrients? (In an ecosystem, more specifically, regarding trophic levels.)
Explanation:
any step in a nutritive series, or food chain, of an ecosystem dead organisms and waste materials into nutrients usable by the producers
what is the cause and effect of stop codone mutation?
Answer:
Nonsense mutations occur when a premature nonsense or stop codon is introduced in the DNA sequence. When the mutated sequence is translated into a protein, the resulting protein is incomplete and shorter than normal. Consequently, most nonsense mutations result in nonfunctional proteins.
Hope this helped! :)