Answer:
1. 5480.31 J
2. 15.01 m/s
3. 1733.24 kg
4. 82,114,200 J
Explanation:
Kinetic energy is calculated thus;
K.E = ½ m × v2
Where;
m = mass (kg)
v = speed or velocity (m/s)
1. V = 11.9m/s, m = 77.4kg
K.E = ½ × 77.4 × 11.9²
K.E = ½ × 77.4 × 141.61
K.E = ½ × 10960.614
K.E = 5480.31 J
2. m = 654kg, K.E = 73,700J, v = ?
73700 = ½ × 654 × v²
73700 = 327v²
v² = 73700/327
v² = 225.38
v = √225.38
v = 15.01 m/s.
3. V = 4.67m/s, K.E = 18,900J, m = ?
18900 = ½ × m = 4.67²
18900 = ½ × m × 21.81
18900 = 10.9m
m = 18900/10.9
m = 1733.24 kg
4. K.E = ?, m = 7600kg, v = 147m/s
K.E = ½ × 7600 × 147²
K.E = 3800 × 21609
K.E = 82,114,200 J
List all the biotic and abiotic factors in figure 4
Answer:
1
Explanation:
_________ inherited traits that increase an organisms chance of survival, also determine an organism’s niche.
Answer:
adaptation
Explanation:
1 : the act or process of changing to better suit a situation. 2 : a body part or feature or a behavior that helps a living thing survive and function better in its environment. adaptation
Answer: Adaptations
Explanation: Got it correct on ECAD T1 Summer 2023 NM-Biology S2
could someone pls help and give an explanation on how u found ur answer? ill mark brainiest
Answer: By analyzing the graph i got my answer. The graph shows tat when squirrel population went down the amount of acorns went down also.
Explanation:
Answer:
yeah i would say c because the otherones would not be correct
Explanation:
have a good day :)
which of these statements about the stars' apparent motion in the night sky are true? choose all that apply ( it could be more than one answer)
A. The orbit of stars around the sun causes stars to appear to move in the night sky.
B. The orbit of stars around the center of the galaxy causes stars to appear to move in the night sky
C. The rotation of earth on its axis causes stars to appear to move in the night sky.
D. The orbit of earth around the sun causes stars to appear to move in the night sky.
i have 1 hour left
Describe the following methods of genetic engineering: gel electrophoresis,
Gel electrophoresis is a method of genetic analysis which involves seperating segments of DNA based on their size and charge.
It involves cutting DNA with various enzymes, then placing the DNA in an agarose gel. An electrical current is then run through the gel. Because DNA is a polar molecule the DNA segments will travel through the agarose cell as the current is applied. Larger fragments will travel shorter distances than shorter fragments. Two plates with 2 different DNA samples will be conducted and the orientation of the DNA strands will be used to make an analysis by comparing the 2 plates.
how dose ecosystem behave as a system
The maximum number of wolves that can survive in a particular forest is 230. What is this number called?
limit capacity
carrying capacity
limiting factor
logistic factor
Answer:
B. carrying capacity
Explanation:
Definition of carrying capacity; the number or quantity of people or things that can be conveyed or held by a vehicle or container.
When are chromosome mostly condensed
Metaphase is a stage of mitosis in the eukaryotic cell cycle in which chromosomes are at their second-most condensed and coiled stage (they are at their most condensed in anaphase).
How is the external parts of the leaf is important in the process of photosynthesis
Answer:
The epidermis has tiny pores called stomata that control transpiration and gas exchange with the air. For photosynthesis, stomata must control the transpiration of water vapor and the exchange of carbon dioxide and oxygen.
Explanation:
A giraffe has a really long neck and feeds on the leaves of plants. How is having a long neck an adaptation that helps the giraffe to survive? (2 points) a It allows the giraffe to eat the plants faster than other animals. b It allows the giraffe to get food from tall trees that other animals cannot reach. c It helps the giraffe keep balance as it eats plant leaves. d It helps the giraffe run faster when attacked by predators.
Answer:
B.) It allows the giraffe to get food from tall trees that other animals cannot reach.
Explanation:
-
One of the distinguishing characteristics of a giraffe is its long neck. The neck has several important roles and specific functions Feeding. With the aid of its long neck a giraffe is able to reach leaves fruit and flowers high up in Vachellia or Senegalia. Formerly Acacia and other sought after tree species. Giraffe are thus equipped to exploit a band of foliage. So answer would be B
The main function of leaves is to give beauty to the plant . True or false
Answer:
no,
Explanation:
The main function of a leaf is to produce food for the plant by photosynthesis
Answer:
the answer is false
name any two organs involved in digestive systemgifjritxudufhg
Answer small and large intestines
he size of the fox population will . . . a increase. An increase in the size of any population leads to an increase in the sizes of all other populations in an ecosystem. increase., An increase in the size of any population leads to an increase in the sizes of all other populations in an ecosystem. b stay the same. Possums and foxes do not eat each other, so the number of births and deaths in the fox population will stay the same. stay the same., Possums and foxes do not eat each other, so the number of births and deaths in the fox population will stay the same. c decrease. The larger opossum population will leave fewer energy storage molecules for all other populations in the ecosystem, so the fox population will reproduce less. This will lead to fewer births than deaths in the fox population.
Complete question:
In Australia, both opossums and foxes eat rats. The sizes of the populations have been stable for the last 12 years, but recently the size of the opossum population increased. What will likely happen to the fox population? It will . .
increase. An increase in the size of any population leads to an increase in the size of all other populations in an ecosystem. stay the same. Opossums and foxes do not eat each other, so the number of births and deaths in the fox population will stay the same. decrease. The larger opossum population will leave fewer energy storage molecules for all other populations in the ecosystem, so the fox population will reproduce less. This will lead to fewer births than deaths in the fox population. decrease. Fewer energy storage molecules will be available to the fox population from the smaller rat population, so the fox population will reproduce less. This will lead to fewer births than deaths in the fox population.Answer:
Decrease. Fewer energy storage molecules will be available to the fox population from the smaller rat population, so the fox population will reproduce less. This will lead to fewer births than deaths in the fox population.
Explanation:
In the trophic web occurs a process of energy transference through different organisms that places at different levels. Each level feeds on the preceding one and becomes food for the next one. The first link is an autotroph organism or producer. The following links are the consumers: herbivores are primary consumers and feed on producers. Carnivores are secondary consumers and feed on herbivores, and so on. The last links are the decomposers, microorganisms that act on dead animals degrading organic matter.
If any of the links change their population size (increasing it or decreasing it), it affects the superior links and the immediately anterior link.
Also, when two or more species are competing for the same source of food, a change in any of the population sizes will affect the other ones.
In the exposed example, foxes are affected by the increase in the opossum population size, that a direct competitor.
Both species, opossums and foxes, feed on the rats. As long as their population sizes remain stable, no species will be hardly affected by the other. However, when a change occurs, the size of any of the populations is altered, indefectibly affecting the other populations. In this example, the opossum population increased. The more opossums are in the region, the more they will prey on rats. Opossums will become stronger competitors to foxes, whose population remains the same. Rats´ population is also affected because they do not have enough time to reproduce at a higher rate recover. So we have
opossum reproducing at a higher rateopossum population increasingopossums strongly competing with foxesmore opossums feeding on more ratsrats not being able to reproduce at a necessary raterats decreasing in numberfoxes not having enough food (rats) to feed onfoxes survival and reproductive rates affectedfoxes death rate increasingfoxes population decreasing.As more opossums are feeding on more rats, and fewer rats are available for foxes, the fox population is affected. They do not have enough food to feed on and to survive. And they do not have enough energy to reproduce. So the survival and reproductive rates in the foxes population decrease. And as they do not have enough food, their death rate increases. Eventually, the fox population decreases in size.
An ecosystem that retains structure & continues normal functions even when environmental conditions change is?
Resilient
Resistant
Reductive
Reconciled
Answer:
Resistant
Explanation:
A good aspect of the ecosystem can either be resistant or resilient when there is a disturbance or a form of deviation from the regular occurrence in the ecosystem structure, function, or both.
For an ecosystem to be resistant means it maintains structures and goes on with normal functions despite the disturbance or alteration in environmental circumstances.
Hence, in this case, an ecosystem that retains the structure and continues normal functions even when environmental conditions change is RESISTANT.
Why is CO2 important?
Carbon dioxide is an important greenhouse gas that helps to trap heat in our atmosphere. Without it, Earth would be cold
PLEASE
The diagram shows the complete classification for the red
fox. The names for some of the taxa are missing.
?
Eukarya
?
Animalia
Phylum
Chordata
Class
Mammalia
Order
Carnivora
Family
Canidae
?
Vulpes
?
Vulpes vulpes
Which taxon does the group Animalia represent?
A. Genus
B. Phylum
C. Species
D. Kinadom
Answer:
Kingdom.
Explanation:
Domain: Eukarya
Kingdom: Animalia
Phylum: Chordata
Class: Mammalia
Order: Carnivora
Family: Canidae
Genus: Vulpes
Species: Vulpes vulpes
Pls help question is in picture
Answer:
it is d trust me i took the test
Explanation:
if the species are separated there will be less interfering between species
Which sentence best supports the idea
that fossils help us learn more about
the history of the earth?
Natural geological processes
bring layers of rock to the
surface.
Most animals of our past did
not fossilize.
wit
Speac
The largest dinosaur fossil
ever found was of a
Brachiosaurus.
sroamed the
posed to
slowly
d, the remains
Paleontologists know about
the diversity of life that has existed since the beginning of time
Answer:
D the remains Paleontologists know about the diversity of live that has existed since the beginning of time
Explanation:
fossils assist in understanding of evolution throughout the billions of years that the earth has housed living beings. it allows us to even date history
Which theme includes how humans adapt, modify or depend on the environment?
1,region
2.movment
3.place
4 human environment interaction
The muscle in your mouth that is used for pushing food around. Second letter o, last letter e
Answer:starnage
Explanation:
A sexually mature seahorse can produce thousands of offspring. What is the BEST reason overproduction of offspring by marine organisms is considered to be a reproductive advantage?
It increases competition.
It decreases competition.
It contributes to the organism’s biological success.
It causes stress on the environment which will apply stress to the creature to adapt.
Answer: D
Explanation:
There are large number of predators present in marine environment. Overproduction of offspring contributes the biological success of the organism.
What is overproduction?Overproduction is referred to the production of large number of species which can be physically supported by ecosystem.
Overproduction support survival of the fittest, by improving the genetic line.
Since the predators are more so, only that organism will survive who can adapt according to the that. This can contributes in organism's biological success.
Thus, the correct answer is C.
For more details regarding overproduction, visit:
https://brainly.com/question/26371701
what are given off as by-products of cellular respiration?
a. carbon dioxide and water
b. energy
c. food
d. oxygen
How does your body know it needs to release more bile and pancreatic juices into the small
intestine?
Answer:
by the signals sent by different organs of the digestive system to the brain
Identify whether the statements apply to autotrophs, heterotrophs, or to both autotrophs and heterotrophs.
autotrophs only
heterotrophs only
both autotrophs and heterotrophs
transform energy in sunlight
into chemical energy
autotrophs only
utilize chemical energy in organic
molecules as a source of energy
both autotrophs and heterotrophs
derive energy by consuming
organic matter
heterotrophs only
produce the pigment chlorophyll
autotrophs only
perform a series of reactions
called the Calvin cycle
perform a series of reactions
called the Krebs cycle
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Answer:
1.autotrophs
2.both autotrophs and heterotrophs
3.heterotrophs
4.autotrophs
5.autotrophs
6.both heterotrophs and autotrophs
Explanation:
The statements that apply to autotrophs, heterotrophs, or to both autotrophs and heterotrophs are as follows:
Transform energy in sunlight into chemical energy: Autotrophs only.Utilize chemical energy in organic molecules as a source of energy: Both Autotrophs and Heterotrophs.Derive energy by consuming organic matter: Heterotrophs only.Produce the pigment chlorophyll: Autotrophs only.Perform a series of reactions called the Calvin cycle: Both Autotrophs and Heterotrophs.Perform a series of reactions called the Krebs cycle: Both Autotrophs and Heterotrophs.What are Autotrophs?Autotrophs may be defined as organisms that are capable of producing their own food through the utilization of light, water, carbon dioxide, or other chemicals.
Such type of organisms typically synthesizes their own food with the help of the photosynthesis process. These organisms derive energy by consuming inorganic nutrients and matter.
Heterotrophs are those organisms that consume readymade food synthesized by autotrophs in different modes.
Therefore, it is well described above.
To learn more about Autotrophs and heterotrophs, refer to the link:
https://brainly.com/question/16989903
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2. Why do we need carbohydrates ?Name three sources of carbohydrate in our food
Answer:
Carbohydrates are the body's main source of energy. In their absence, your body will use protein and fat for energy. It may also be hard to get enough fibre, which is important for long-term health.
Carbohydrates are found in a wide array of both healthy and unhealthy foods—bread, beans, milk, popcorn, potatoes, cookies, spaghetti, soft drinks, corn, and cherry pie etc.
Explanation:
brainliest pls
Paragraph on climate change
Answer:
Global warming, also known as Climate Change, means the rise in average surface temperatures on Earth. An overwhelming scientific consensus maintains that climate change is due primarily to the human use of fossil fuels, which releases carbon dioxide and other greenhouse gases into the air.
Explanation:
bhkjfbeqoufqilgviogfi
What happens when a muscle contracts?
It shortens
It lengthens
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[tex]\sf\purple{It\:shortens. }[/tex] ✅Muscle contractions are defined by changes in the length of the muscle during contraction.When muscles contract, they become shorter, stiffer and thicker.[tex]\bold{ \green{ \star{ \orange{Hope\:it\:helps.}}}}⋆[/tex]
The richest layer of soil would be found at
Horizon 0
Horizon A
Horizon B
Horizon C
Bedrock
Answer: The first horizon is the “A“ horizon. It is more commonly called the topsoil. The topsoil is usually the darkest layer of the soil. It is the layer with the most organic material.
Explanation:
In the gold rush of 1849, prospectors found a yellow mineral that appeared to be gold, but was harder and more brittle than gold. What is this mineral that came to be called “fool’s gold”?
Answer:
Pyrite
Explanation:
I hope this helps!
Answer:
Pyrite
Explanation:
I hope this helps!
On This Earth Day, It's Easier to be Green
By Micheline Maynard
1.
Why does the author think it's easier to be "green" now than when Earth Day first started?
2.
What is "pro-environmentalism socialization"?
3
What are some ways school campuses are helping students contribute to being green?
Bikes and Cars: Can They Ever Get Along?
Answer: Answer to number 1
Explanation:
He thinks now days things were better than they were back then.