Answer:
The flu virus mutates
Explanation:
We need a new vaccine for each new strand of a flu virus
What is the Fossil Record?
A The collection of every fossil found in the world
B The collection of every dinosaur fossil
© The collection of every fossil found in America
D The collection of all dead organisms found
Answer:
D
Explanation:
None of these answers make sense but I think the best answer would be D please connect or contact your teacher and ask her about this. Hope this helped!
Earth Science Final Exam 2020-2021 (385) | 2 of 40
The climate of an area is the
A winds in the area.
B. same as the weather of the area.
C, weather in the area over a long period of time.
D. temperature of the area.
The human hand has a unique adaptation called ........??
Please help me
Answer:
The unique features of the human hand can be viewed as adaptations for throwing and clubbing
Cells are divided into which two major groups?
According to the cell theory, the cell is the basic unit of life. All living organisms are composed of one or more cells. Based on the organization of their cellular structures, all living cells can be divided into two groups: prokaryotic and eukaryotic (also spelled procaryotic and eucaryotic).
A cell's initial classification into one of two groups depends on whether it has a nucleus. In contrast to eukaryotic cells, which have a nucleus where the genetic material is segregated from the cytoplasm, prokaryotic cells (bacteria) do not have a nuclear envelope.
In prokaryotes, the DNA (chromosome) is not contained in a membrane bound nucleus; instead, it is in direct contact with the cellular cytoplasm.
A nuclear membrane, also known as a nuclear envelope, separates the DNA from the rest of the cell in eukaryotes, which have compact chromosomes as its form of DNA.
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Louis Pasteur contributed all of the following to Germ Theory EXCEPT
a
Disproved spontaneous generation
b
showed that microbes in the air caused decay
c
showed the link between bacteria and human disease
d
showed that microbes made beverages and food go bad
microbes made beverage and food go bad
I don't get this. This is apart of my assignment and I don't get it.
Answer:
Producer means an organism that can produce it's own food. Plants are prime examples of producers
Primary Consumer means organisms that primarily eat plants and have low energy levels. Squirrels fit into that category. They're almost always herbivores.
Secondary Consumers eat both plants and animals in the Primary Consumer. Crows are technically secondary consumers but I've never seen one eat a squirrel before.
Tertiary Consumers are predators that have the highest energy levels and are at the top of the food chain. Coyotes eat both squirrels and crows.
1.)Students are using balloons to describe the expanding universe model. The students blow up several balloons and put them on the floor. Each balloon represents a different galaxy. How should the students move or change the balloons to demonstrate how the universe is expanding?
All of the balloons should be moved to the center of the floor.
Each balloon should be inflated more so that they are all increasing in size.
Each balloon should be deflated so that there is more distance between the surface of each balloon.
All of the balloons should be moved away from each other so there is more distance between them.
2.)Evidence gathered by studying the composition and movement of distant galaxies indicates that the universe expanded rapidly from a single small point. The universe has continued to expand for over 13 billion years.
Which statement is in agreement with the current understanding of the expanding universe?
A.) All matter and energy were contained inside the small point.
B.) Matter and energy came from areas of the universe and were attracted to the small point.
C.) Matter and energy fell into the small point the same way a black hole attracts matter and energy.
D.) Matter was considered into a single point until energy was attracted to the matter from dark areas of the universe.
3.) Why do scientists believe the universe is still expanding?
A.) The further away from an object is, the temperature and pressure eventually become, causing nuclear fusion.
B.) Distant object shift in frequency toward red on the electromagnetic spectrum, which tells us objects are moving away from us.
C.) Spiral galaxies spin, so they appear to be a rotating disk of stars and dust.
D.) Distant objects shift in frequency toward blue on the electromagnetic spectrum, which tells us objects are closer to us .
Answer:
Explanation:
It’s D for the first one fam
How would you describe attraction?
How would you describe repulsion?
Answer:
Attraction: is a feature of some sort that draws two things together. For example, opposite sides of magnets attract each other,
Repulsion: is the opposite of attraction. Instead of bringing things together, it pushes them apart.
Explanation:
Answer:
it is a property of managet that with same pole repale each other and opposite pole attract each other
One function of the vacuole is the storage of water.
Name, in sequence, the three parts of a cell that water must pass
through to reach the vacuole.
[2]
Answer:
cell wall ⇒ plasma membrane ⇒ cytoplasm
Explanation:
Water enters the plant through several pathways. If the "Vacuolar Pathway" will be followed, the water will enter the plant through the cell wall, going to the plasma membrane, then to the cytoplasm and then into the "vacuole." The cell wall functions to protect the plant's cell membrane/plasma membrane. The plasma membrane is semipermeable and it allows materials to be transported in and out of the cell. The cytoplasm consists of the plant cell's organelles. One of its organelles is the "vacuole," which is responsible for the plant's homeostasis.
Which of the following best matches the phase in cell division and the event that takes place during the phase?
Prophase : Chromosomes are replicated
Prophase : Fibers form the mitotic spindle
Telophase : Centromere of each chromosome splits
Telophase : Each chromosome attaches to a spindle fiber
Answer:
Telophase : Each chromosome attaches to a spindle fiber .
i think this is the answer
Answer:
The correct answer is Prophase : Fibers form the mitotic spindle.
Explanation:
This is when fibers form the mitotic spindle.
Animal cells are placed in an isotonic solution. THEN, additional amounts of solute are added to the solution. What happens to the cells
Answer:
The animal cell will shrink due to loss of water to the external solution
Explanation:
An isotonic solution is that solution which has equal concentration with its external environment. Hence, no net movement of water occurs in an isotonic solution since there is no concentration gradient. Therefore, if an animal cell is placed in an isotonic solution at first, no net movement of water occurs because the intracellular and extracellular concentrations are at equilibrium.
However, if more solutes are added to the solution, it makes the solution HYPERTONIC to the cell i.e greater in concentration. This creates an osmotic gradient and causes water to move out of the animal cell into the solution in accordance to osmotic principles (movement of water from a low concentration of solute to high concentration of solute). This causes the animal cell to likely SHRINK.
Three students were working on a drawing of the water cycle for a class project. They each had different ideas about what needed to be in their drawing to show the water cycle. This is what they said
Who do you agree with the most?
A)Van: There always has to be a body of water in a water cycle diagram. It doesn't have to be an ocean. It can be an ocean, lake, river, pond, stream, or other body of water
B)Lamar: A water cycle diagram doesn't have to have a body of water. We can draw it without an ocean, lake, river, and, steam, or other body of water
C) Rema: There has to be an ocean in a water cycle diagram.
Answer:
I agree with A, Van.
Explanation:
I agree with Van because I have personally seen water cycle diagrams without the ocean. Another reason why I agree with Van is because in some areas in the world, the ocean isn't anywhere near close to said areas.
What distance would be covered in 10
minutes by a train that travels at a constant
speed of 500 meters per minute?
Answer:
The correct answer would be - 5000 meter or 5 kilometers
Explanation:
Given:
Speed = 500 meter/minute
Time = 10 minutes
Distance would be covered = ?
Formula used:
speed = distance/ time
then, Distance = speed*time
Solution:
Putting values in the provided formula:
Distance = speed*time
distance = 500*10 meters
= 5000 meters or 5 kilometer (1000 meter = 1 kilometer)
High average daily temperature and heavy annual precipitation are found in a
o desert.
O grassland.
O rainforest.
O tundra.
The high average daily temperature and the heavy annual precipitation should be founded in the rain forest.
What is rain forest?Rainforests should be characterized via a closed and continuous tree. Here it should be classified when there should be tropical rainforest or the temperature rainforest
Also, it does not found in desert, grassland, and the tundra.
Therefore, the third option is correct.
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contrast ionic covalent bonds. what happens to the valence electrons how does it affect the elements/compounds
Answer:
The number of electrons in an atom's outermost valence shell governs its bonding behaviour. Elements whose atoms have the same number of valence electrons are grouped together in the Periodic Table. ... To form a covalent bond, one electron from the halogen and one electron from another atom form a shared pair.
4. What is the message in the poem at the beginning of this section
Dr. Sanchez and her team are studying global climate change. They develop a set of
mathematical equations that relate climate data gathered over the past 100 years. Then, with
the aid of a computer, they use the equations to predict climate change in the future.
The team's use of mathematical equations and computers is an example of which science
process?
Answer:
modeling
Explanation:
Why does much of East Africa have cooler
temperatures than other regions?
A The region sits at a higher elevation.
B The region has enormous grasslands.
C The region benefits from deepwater lakes.
D The region is divided by a series of
rift valleys.
Answer:
A. The region sits at a higher elevation.
Explanation:
The east coast of Africa would have a cooler climate than the western coast because of the tilts on the Earth's axis. Global climate is shaped by many factors, including solar energy trapped in the biosphere, latitude, and the transport of heat by winds and ocean currents.Why enzymes are necessary to maintain homeostasis?
Answer: Enzymes are proteins that catalyse (speed up) vital chemical reactions inside the body. ... If any conditions are outside their specific range then the enzymes cannot function. This could cause the organism to die.
:>
PLEASE HELP, IM GIVING BRAINLEIST!!!
Answer:
A
Explanation:
What do ocean waves and
currents have to do with energy waves and
electrical currents?
Answer:
they are both waves and currents
Explanation:
gl studyinggg
Ocean waves, currents, and energy although both waves and electrical currents involve the movement of energy, they are distinct phenomena that occur in different mediums and generate electricity in different ways.
What is the significance of the ocean waves?Ocean waves are caused when the wind blows or passes over the surface of the water, which leads to the generation of larger waves and these waves transfer energy through the ocean's water, which can be used to generate electricity using wave energy converters. They are caused by a variety of factors, including differences in water temperature and salinity, the rotation of the earth, and winds etc.
Hence, ocean waves, currents, and energy although both waves and electrical currents involve the movement of energy, they are distinct phenomena that occur in different mediums and generate electricity in different ways.
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The Golgi Apparatus is responsible for what task in the cell?
A) forms spindle fibers to separate chromosomes during cell division
B) contains DNA instructions for proteins in the cell.
C)Packages in labels materials in order to send them to their final destination.
D) provides a rigid structure outside of the plasma membrane for extra support
Answer:
C)Packages in labels materials in order to send them to their final destination.
Explanation:
The golgi body, also known as a golgi apparatus, is a cell organelle that helps process and package proteins and lipid molecules, especially proteins destined to be exported from the cell.
When the plant cell is swallowed by water without exploding it is in what case
Answer:
It is in hypotonic case.
Explanation:
The plant cell is in hypotonic case because the the solute concentration outside the cell is lower than in the cell. Plant cell do not burst in hypotonic solution because they have a cellulose cell wall outside its cell membrane. The cell wall is permeable and it's prevent the cell from bursting after it absorb water through osmosis.
Study the map.
Which plate forms a boundary with the African Plate?
Pacific
South American
Nazca
Philippine
Answer:
south american.......
There are different kinds of tectonic plates. The plate forms a boundary with the African Plate is South American.
A tectonic plate is simply known as a plate that consist of solid rock with set of irregular shapes.
The African plate is known to be made up of all of Africa and the surrounding ocean. They are share boundary withSouth America plate, Antarctic plate, Eurasia plate, North America plate etc.
Other tectonic plates includes:
Antarctic PlateEurasian PlateIndo-Australian PlateNorth American PlateSouth American PlateLearn more about Plate from
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3. How can diversity within an ecosystem be compromised?
O by regulating human activity within an ecosystem
O by helping to maintain habitats that have been disturbed
O by building structures on natural habitat areas
O by leaving the ecosystem alone to fend for itself
Answer:
O by building structures on natural habitat areas
Explanation:
The diversity within an ecosystem can be compromised by building structures on natural habitat areas.
An ecosystem is part of the environment made up of living and non-living components in their natural habitats.
Diversity entails variations in the life forms within a particular ecosystem. When human-induced pressure begins to impact the environment, diversity is threatened Nature has its balancing effect the allow for a wide range of organisms to thrive. When human builds structures, part of the natural habitat is lost.Answer:
building structures on natural habitat areas
Explanation:
Indicate the color of blood in each of the following cases:
1. Blood entering the lungs (alveoli):
2. Blood leaving the lungs (alveoli):
3. Blood entering the organs (cells):
4. Blood leaving the organs (cells):
Answer:
1) blue
2) red
3) red
4) blue
Explanation:
organs need red blood and they get rid of blue blood. the lungs are what changes blue to red, so the lungs take in blue and expels red blood.
Which ONE of the five senses do you think is the least necessary and could live without?
Answer:
Most likely taste or smell, I don't think there is a right answer but if you couldn't touch things you wonder be able to do a lot of things. If you couldn't hear it would be very hard to understand ppl same with sight.
Explanation:
How are electric cars good for the environment?
a. They use more fossil fuels.
b. They produce less pollution.
c. They produce less energy.
d. They use more gasoline.
What are the DNA base pairing rules?_________________
Does the image above follow the rules?__________________
Answer:
A with T for the first one,
cant see picture
Explanation:
Why is it beneficial for cells to use ATP rather than directly using the energy stored in the bonds of carbohydrates to power cellular reactions
Answer:
because it is not in simplest form or assorbable