You are tasked with identifying several rock samples. You are stumped by this sample. Your teacher has given you a hint. She tells you that it contains iron. You can now narrow your choices. But, you want to know if the rock contains hematite or magnetite.
Design a strategy to test what mineral is present.
A) Test to determine the hardness of the two samples; observe the colors.
B) Observe the shape of the crystals; observe the streak color from a streak test.
C) Observe the colors; do a streak test; see which sample is attracted to a magnet.
D) Observe the shape; determine the hardness of the two samples; observe the colors.
Answer:
I am prety sure C
Explanation:
Also how do you start a message with your friends?
While on a road trip, Jason observed the fuel gauge drop from the full tank mark to empty. What most likely happened to the energy from the fuel in the fuel tank?
Lost in the universe
Destroyed during the road trip
Transformed to a different form of energy
Used to increase the overall energy of the system
Answer: Transformed to a different form of energy
Explanation:
I think this is the correct answer, I'm sorry if it is wrong.
---------
Possible Explanation - In gasoline-powered vehicles, most of the fuel's energy is lost in the engine, primarily as heat. Smaller amounts of energy are lost through engine friction, pumping air into and out of the engine, and combustion inefficiency.
identify each of the cell structures and their function: centrosomes, aster, equator, cleavage furrow, cell plate, kinetochore fibers, spindle, microtubules and cytokinesis
Answer: Interphase
Explanation:
The DNA is organized in bundles called _______.
Answer:
Chromosomes
Explanation:
Hope this helps
Taking one link out of the food chain can have disastrous effects on the others. Just like a food chain how do we ensure we do not have any “missing links” in our faithfulness to God?
Answer:
To ensure we don't have any missing links, we should pray to God. We shouldn't worship any others or idolize. As animals on the food chain may go extinct, we may go through eternal suffering. We can surround ourselves with positive Christians and ask Jesus by prayer for help and becoming more obedient in each step we take.
Using the CER method, explain how embryo development is used as evidence to support evolution.
Answer:
Evidence for evolution has been obtained through fossil records, embryology, geography, and molecular biology.
Explanation:
Highly organized systems like living cells should have _____.
a. High energy
b. High entropy
c. Low entropy
d. Low energy
Rainforests around the world are being cleared at an alarming rate to make room for new communities, agriculture, mining, and roads, and to provide lumber for construction and furniture.
How might the destruction of rainforests affect the balance of gases in Earth's atmosphere?
by increasing carbon dioxide and decreasing oxygen
by increasing carbon dioxide and increasing oxygen
by decreasing carbon dioxide and increasing oxygen
by decreasing carbon dioxideand decreasing oxygen
help help help help help
Which of the following minerals is the hardest and is a 10 on Mohs scale?
a
Topaz
b
Talc
c
Quartz
d
Diamond
What is the correct sequence for the movement of blood through the heart and body? (Step 1 is labeled for you.)
Oxygenated blood travels from the lungs to the left atrium.
Deoxygenated blood travels from the body into the right atrium.
1. Blood picks up oxygen from the lungs, exchanging it for carbon dioxide.
Oxygenated blood is pumped from the left ventricle out to the body.
Deoxygenated blood is pumped from the right atrium into the right ventricle.
Oxygenated blood is pumped from the left atrium into the left ventricle.
Deoxygenated blood is pumped from the right ventricle to the lungs.
Cells take in oxygen from the blood, exchanging it for carbon dioxide.
The correct sequence of blood has been written below.
What is the sequence of bloodBlood picks up oxygen from the lungs, exchanging it for carbon dioxide.
Oxygenated blood is pumped from the left atrium into the left ventricle.
Oxygenated blood is pumped from the left ventricle out to the body.
Cells take in oxygen from the blood, exchanging it for carbon dioxide.
Deoxygenated blood travels from the body into the right atrium.
Deoxygenated blood is pumped from the right atrium into the right ventricle.
Deoxygenated blood is pumped from the right ventricle to the lungs to pick up oxygen and release carbon dioxide.
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Put these in order:
The bride structure experiences structural stress.
The fright train loaded with iron ore passes over the bride
The bridge collapses
The beams of the rail bridge bend slowly.
The bridge carries 10 trains a day
The beams of a rail bridge give away
A rail was build here 30 years ago
The bridge is experiencing structural fatigue.
The bridge is experiencing structural failure.
How are isobars and isotherms alike?
Answer:
Isobars and isotherms are lines on weather maps which represent patterns of pressure and temperature, respectively. They show how temperature and pressure are changing over space and so help describe the large-scale weather patterns across a region in the map.
Tissues are to cells as organ systems are to _____.
A: populations
B: tissues
C:organisms
D:organs
Answer:
organs
Explanation:
Organs are to organ systems
ANSWER ASAP PLZ!!!!!
Why do most flowers have scents and colored petals?
Answer:
"Collectively the scent, colour and shape of petals all play a role in attracting/repelling specific pollinators and providing suitable conditions for pollinating. Some pollinators include insects, birds, bats and the wind."
-Google Wikipedia
Explanation:
Explanation:
Flowers are colourful and fragrant to facilitate insect pollination. Insects get attracted to Bright colours and fragrance and when they reach the flower, pollens stick to their body and hence get pollinated
Identify the image that doesn’t depict a reproductive strategy.
Answer:
the picture with leafs will be your answer
Explanation:
Infectious Disease Investigation
The students are to investigate an infectious disease.
They will choose a specific infectious disease, such as the flu, common cold, or
COVID-19, and research its causes, symptoms, and preventive measures.
Students are to create informative posters or presentations about the disease,
including its transmission methods and ways to protect oneself from infection.
They will explain the importance of personal hygiene and vaccination in preventing
the spread of infectious diseases.
Following the summer vacation, the students will be given an opportunity to present
their findings to the class or organize an "Infectious Disease Awareness Campaign"
where they can share their posters or presentations with their peers.
Answer:
The common cold is an illness affecting your nose and throat. Most often, it's harmless, but it might not feel that way. Germs called viruses cause a common cold.
Often, adults may have two or three colds each year. Infants and young children may have colds more often
Beavers, large members of the rodent family in North America, are often referred to as “ecosystem/keystone engineers” by wildlife managers. Ecosystem engineers are described as animals that create, alter, or destroy a habitat. Beavers contribute to river ecosystems by bringing down old and dead trees along riverbanks. They use these trees to make their dams. Although these dams are primarily used for protection and food storage, scientists report that these dams change the surrounding environment in different ways.
Given this information, in three to five sentences, describe a potential benefit that beavers contribute to the ecosystem as keystone engineers and describe a plausible impact that the removal of beavers could have on the surrounding ecosystem.
Answer:The potential benefit that beavers contribute to the ecosystem include sources of food and habitat for some animals.This consists of all the organisms and the physical environment with which they interact.The removal of the beavers will allow for more oxygen to be present within the ecosystem as a result of increased plant population.
Explanation:
Answer:
2-6=4 thx
Explanation:
it is thx
I need help asap!!!!!!!!!!!!!!!!!!!!!!!!
Answer:
I cant pull it up.
Explanation:
Sorry.
I really am :(
Look at the diagram of the rock cycle below.
Which part of the cycle is missing?
A.
sedimentation
B.
melting
C.
crystallization
D.
mineral integration
From the diagram of the rock cycle the missing part is ( B ) ; Melting
Magma is a hot liquid/semi-liquid rock that is usually formed under the earth due to high pressure and temperature present in the inner core of the earth. magma is obtained by the melting down of existing rocks ( Igneous, sedimentary and metamorphic rocks ) under high pressure and temperature in the earths core.
Magma is released to the earth surfaces during volcanoes therefore the missing term in the rock cycle is melting
Hence we can conclude that from the diagram of the rock cycle the missing part is Melting.
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Zainab is in a science class, and he is studying an organism that reproduces sexually. The genetic material of the organism.......
A. is a blend of the genetic material of it's parents
B. will be passed to it's offspring without any changes
C. is identical to it's parents genetic material
D. all of these
Answer:
A (First Option)
Explanation:
I just finished a lesson that included this. So...
where did the name '' hamster'' probably come from?
A. The animal was discovered by a person named Hamm.
B. People thought the animals looked like little hams.
C. It comes from a word meaning ''tiny''.
D. It comes from a word meaning ''to hoard''.
Answer:European Hamster
Smallest breed
Roborovski hamster
Stout-bodied rodents,
with tails shorter than body length, and have small, furry ears, short, stocky legs, and wide feet.
en.wikipedia.org
Popular breed
Golden hamster
They carry food in their spacious cheek pouches to their underground storage chambers. When full, the cheeks can make their heads double, or even triple in size.
en.wikipedia.org
Explanation:
The flow chart below indicates the hierarchical levels of the Linnaean classification system.
Kingdom --> Phylum --> Class --> Order --> Family --> Genus --> Species
Which of the following organisms most likely share the most structural characteristics?
A.
Two organisms that are classified within the same genus, but different species.
B.
Two organisms that are classified within the same phylum, but different classes.
C.
Two organisms that are classified within the same kingdom, but different phyla.
D.
Two organisms that are classified within the same class, but different orders.
Answer:
the answer is A
The right response is A. two species of different creatures that belong to the same genus. This is so because the Linnaean Classification method uses a hierarchical method, with the most similar animals being placed in the same genus, to classify organisms according to their physical traits.
What is the reason for the same ?Consequently, due to their high degree of physical similarity, two animals belonging to the same genus are most likely to share the majority of their structural properties.
For instance, the genus Felis includes two species of cats, such as the domestic cat and the Bengal tiger. This indicates that their physical characteristics, such as having fur, four legs, and whiskers, are the most similar.
Comparatively, two species that belong to different phyla, classes, orders, or families are less likely to share the same structural properties since they are less closely related to one another and have fewer physical characteristics in common.
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Scientists talk about the evidence that supports their concern that our planet is warming. Put an X next to all the statements that can be considered signs of global warming.
There are many signs of global warming, including:
Rising temperatures: Global temperatures have been rising steadily since the industrial revolution, with the past decade being the hottest on record.
Melting ice: Arctic sea ice is shrinking at a rate of about 12.8 percent per decade, and the Greenland and Antarctic ice sheets are also losing mass.
Sea level rise: Sea levels have risen about 8 inches since 1880 and are expected to continue rising, putting coastal communities at risk.
Extreme weather: Climate change is causing more frequent and severe heatwaves, droughts, floods, hurricanes, and wildfires.
Ocean acidification: As the oceans absorb more carbon dioxide from the atmosphere, they become more acidic, which can harm marine life and ecosystems.
Shifts in plant and animal behavior: Plants and animals are responding to climate change by shifting their ranges, altering migration patterns, and changing the timing of key life cycle events.
Human health impacts: Rising temperatures and increased air pollution can lead to more respiratory illnesses, heat-related illnesses, and the spread of disease-carrying insects.
Which has increased at about the same rate as global temperatures over the past 100 years?
A sunlight reaching Earth
B Volcanic eruptions
C Tree rings
D carbon dioxide
Please help thank you
Answer: D is the answer.
Explanation: Carbon dioxide significantly impacts the global temperature, and is partially the reason why it has been increasing over the past 100 years.
Find the hot spot on the map. This represents one of the volcanoes of Hawaii, which gets its fuel because the island sits over a hot spot. Hot spots occurs at abnormally hot centers known as mantle plumes. Scientific models depict these plumes of molten rock almost like a lava lamp, with a rising bulbous head fed by a long, narrow tail that originates in the mantle. This type of volcanism, hot spot volcanism, is unique. Why?
A The hot spot volcanoes rarely result in mountain building; they are a destructive process.The hot spot volcanoes rarely result in mountain building; they are a destructive process.
B It does not occur at plate boundaries where most all other volcanism occurs.It does not occur at plate boundaries where most all other volcanism occurs.
C It occurs where two tectonic plates converge and is usually the site of mountain building.It occurs where two tectonic plates converge and is usually the site of mountain building.
D The resulting volcanoes always produce islands.
Answer:
A: The hot spot volcanoes rarely result in mountain building; they are a destructive process.The hot spot volcanoes rarely result in mountain building; they are a destructive process.
Michael decides to bake bread one morning. He measures ingredients, mixes them together to make dough, and cooks the dough in an oven. As the dough cooks, Michael observes the bread rising. Which of the following is evidence of the chemical change in michaels break- making process?
Genes and Proteins in Hemophilia
Genetic researchers at Bay Medical Company are working to improve treatments for hemophilia. Currently, they are investigating the possibilities of gene therapy, which involves changing a person’s genes so that that person no longer has hemophilia. In order to help Bay Medical Company with their research, read the passage below and then answer the question.
Genes are instructions for proteins. Your traits are determined by the kinds of proteins your body makes. For example, when you get a cut, clotting factor proteins connect to form scabs. People with hemophilia do not have a version of the gene with the right instructions for making clotting factor VIII protein. Without the right instructions, their cells can’t make the proteins needed to form scabs. Healthy people have at least one copy of the gene that provides the right instructions for making all of the clotting factor proteins.
If genetic researchers found a way to change a person’s genes, would they be able to cure hemophilia? Why or why not?
Can you guys please solve this for me ASAP???? Thank you=)
Answer the question below brainliest for first answer
Answer:
Your answer should be A on the first two, and b on the third!!
Explanation:
hope this helped! :)
Pl z help giveing brianliest
Answer:
The first one
Explanation: