Water has several properties that make it unique amongst compounds and make it possible for all forms of known life to function. The graph provided depicts what happens to the density of water as the temperature gets colder. According to the graph, what happens to the water’s density as it freezes and why? (SC.912. L.18.12)
When the temperature of the water finally goes below 4°C, the density of water decreases and as a result ice does not sink. The surface water freezes at 0°C while the lower part remains at 4°C
When the temperature of the water finally goes below 4°C, the density of water increases and as a result, ice doesn’t sink. The surface water freezes at 0°C and the water below freezes as well, allowing life to exist below frozen lakes
Water continues to get denser as the temperature get colder
The properties of cohesion and adhesion are directly responsible for water expansion at 4°C allowing aquatic life to survive under frozen lakes
Water’s density increases as it freezes or at lower temperature which is a unique property of water that enables aquatic animals to survive.
How cold water has more density?Cool water has more density because cooling a substance leads to molecules to slow down and get closer to one another, occupying a smaller volume that results in an increase in density while on the other hand, the warm water is less denser and will float on room-temperature water.
So we can conclude that cold water is more dense and will sink in room-temperature water.
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Question 15 of 34
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Q-Science-Gr6-SQSA3-PBT-CBT (2021-22)
Question 1-15
Which statement explains why the nucleus can be referred to as the brain of plant and animal cells? (SC.6.L. 14.4)
o It releases energy to the cell.
o It controls the activities of the cell.
o It stores food, water, and wastes of the cell.
It controls the materials that go into and out of the cell.
What adaptations do sand mason worms have to survive their environment?.
The presence of the streamlined body of the sand mason worms is what enables them survive in their environment.
What is Adaptation?This refers to changes in the characteristics of an organism that help them to survive in the changing environment.
Sand mason worms have streamlined body which enables them burrow into the soil in search of food and other activities.
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Arrange the states of matter in order of increasing kinetic energy.
Answer:
solid, liquid, gas
Explanation:
i hope this helps
Drag the words at the bottom of the slide to their correct location on the diagram below.
Answer:
Chlorophyll is the inside diagram. Chlorophyll allows the plant to consume light energy and turn it into its own food, this is called Photosynthesis.
Chloroplast is the outer layer that holds the Chlorophyll inside which is where Photosynthesis takes place. Think of Chloroplast as the skin that protects or holds the activities going on inside.
Explanation:
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Which choice best describes when a cell becomes 2n?
after fertilization when forming a gamete
after meiosis when forming a gamete
after meiosis when forming a zygote
after fertilization when forming a zygote
The choice that best describes when a cell becomes 2n is : ( C ) after meiosis when froming a zygote
Mitosis vs MeiosisMitosis is a single round division of a parent body cell which produces two ( 2 ) identical diploid daughter cells ( 2n cells ). while Meiosis is the divison of parent gametes which produces four ( 4 ) haploid daughter cells. Meiosis leads to the production of gametes.
Hence we can conclude that The choice that best describes when a cell becomes 2n is : after meiosis when froming a zygote
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When comparing two species, which type of body structure indicates evolutionary relatedness?.
Homologous structure is type of body structure that indicates evolutionary relatedness.
What is Homologous structures?Homologous structures refers to body structures like organ or bone that have similar underlying anatomical features that exist in different animals. These structures entails that different animals descend from a common ancestor and serve as evidence of evolution.
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A common error is to describe arteries as the vessels that always transport ______ blood instead of describing it as a vessel that takes blood ______ from the heart.
An error is to describe arteries as the vessels that always transport oxygenated blood instead of describing them as vessels that take blood away from the heart.
What is an artery?An artery is a big blood vessel that transport enriched oxygen blood to all part of the human body.
This rich oxygen blood is used by human tissues to carry out cellular respiration (aerobic cell respiration).
Moreover, veins are other types of blood vessels that are also capable of carrying blood toward the heart.
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Which describes the chromosome theory of inheritance?
Question 3 of 10
Which of these celestial objects is the largest?
A. Dwarf planet
B. Meteoroid
C. Comet
O D. Asteroid
SUBMIT
Answer:
Comet
Explanation:
The option is C
hope this helps.
Answer:
A) Dwarf planet
Explanation:
I think even though it has the name dwarf,it is larger than the rest.
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The national wildlife refuge provides land for fish, wildlife, and plants. please select the best answer from the choices provided t f
The national wildlife refuge refers to protected areas of US managed by United State and wildlife services. They provide land for fish, wildlife and plants.
What is national wildlife refuge?The National Wildlife Refuge System is the system of public lands to conserve America's fish, wildlife, and plants.
The National Wildlife Refuge Association manage the integrity of the National Wildlife Refuge System with advocacy, restoration and research. The National Wildlife Refuge System is visited by nearly 50 million visitors each year.
Thus, this statement is true.
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List all the gametes that are possible with each of the following genotypes.
a. Aabb
d. AABb
b. AaBB
e. AAbb
C. AaBb
f. aabb
All the possible gametes for Aabb would be Ab and ab; that of AABb would be Ab and AB; that of AaBB would be AB and aB; that of AAbb would be Ab; that of AaBb would be AB, Ab, aB, and ab; and that of aabb would be ab respectively.
Gametes formationThe formation of gametes for a dihybrid involves the crossing of the two traits involved.
Thus: Aabb is equivalent to crossing Aa and bb
Aa x bb
Ab Ab ab ab
Hence, all the gametes would be Ab or ab.
For AABb: AA x Bb = AB Ab AB Ab
The gametes are either AB or Ab
For AaBB: the gametes are either AB or aB
For AAbb, only Ab gametes are produced
For AaBb: the gametes would be AB Ab aB and ab
For aabb: only ab gametes are produced.
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Which observation could lead to the conclusion that an object is nonliving?
Answer:
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The object does not move. It does not breathe.It has no cells.All living things are made of cells.
According to the articles, how did the sequencing of the human genome impact our ability to understand human evolution and natural selection?.
Answer:
whole genome sequencing allows us to examine evolution at the phenotypic level, and gives us a testable way to predict how environmental impacts will shape future phenotypes.
how are genetically modified organisms beneficial?
list 3 ways on how…
Answer:
Some benefits of genetic engineering in agriculture are increased crop yields, reduced costs for food or drug production, reduced need for pesticides, enhanced nutrient composition and food quality, resistance to pests and disease, greater food security, and medical benefits to the world's growing population.
Describe the relationship between rocks and fossils found in the same rock layer.
Answer:
The three concepts are summarized in the general principle called the Law of Fossil Succession: The kinds of animals and plants found as fossils change through time. When we find the same kinds of fossils in rocks from different places, we know that the rocks are the same age. Scientists look for ancestors and descendants through geologic time.
Explanation:
does anyone know the answer?
Question 1 is d
Question 2 is c
Question 3 is e
Question 4 is a
Which of the following explains why animals need more food when it is cold?
winter
Explanation:
because during winter animal are few
The following is an example of a food chain. Identify the producer, primary consumer, secondary
consumer and tertiary consumer.
Cabbage - Caterpillar Chicken > Snake
Answer: Cabbage-producer, Caterpillar-primary, Chicken-secondary, Snake-tertiary
Explanation: Producers mainly consist of plants (green plants)
Which of these materials are organic? (Select all that apply.)
A. rock
B. leaf
C. clay
D. bacteria
(PICK MORE THAN ONE) also no links or troll answers
Answer: All: A, B, C, D
Explanation:
All of these materials are organic. This means they can be found naturally occurring in our world, Earth. This means you should select all of them.
✓ A. rock
✓ B. leaf
✓ C. clay
✓ D. bacteria
What caused the disappearance of land bridges?
Answer:
The rise of sea levels
Explanation:
Due to rising sea levels, all of the land bridges were covered.
which natural resource is mined to, produce a digital phone? pls help me
please be correct
⦁ How many hours does each member of a baseball team practice?
Answer:
27
Explanation:
there is 9 player's in a base ball team + everyone get 3 hour's So we do 9x3 and the answer will be 27
Answer:
27
Explanation:
there is 9 player's in a base ball team + everyone get 3 hour's So we do 9x3 and the answer will be 27
When the tubular fluid leaves the distal convoluted tubules, it must travel through a series of small ______ that empty into ______.
When the tubular fluid leaves the distal convoluted tubules, it must travel through a series of small collecting tubules that empty into the collecting duct.
What are these structures a part of?The structures described in the question are a part of the organ in charge of filtering the blood and producing urine, the kidney. Within the kidney, the filtered plasma, in the form of urine, travels through a series of tubules and ducts in order to reach the ureter.
Therefore, we can confirm that when the tubular fluid leaves the distal convoluted tubules, it must travel through a series of small collecting tubules that empty into the collecting duct.
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What is a primary function of the corpus callosum?.
Answer:
The corpus callosum is a thick bundle of nerve fibres that ensures both sides of the brain can communicate and send signals to each other.
Cyclin dependent kinases (Cdks) regulate cell cycle progression through phosphorylation of substrates. Cdks are activated only when _____________
Answer:
Cycling building
Explanation:
Answer:
cycling building
Explanation:
Cyclin dependent kinases (Cdks) regulate cell cycle progression through phosphorylation of substrates. Cdks are activated only when _____________,cycling building
Which of the following is true about acid rain? a. It is more acidic that normal rain. b. It is less acidic than normal rain. c. All rain is acid rain. d. There is no such thing as acid rain. Please select the best answer from the choices provided A B C D
Answer:
A
Explanation:
Acid rain usually has a pH between 4.2 and 4.4, while normal rain has a pH of about 5.6.
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Answer:
h a i
Explanation:
The lateral walls of the oral cavity are formed by the cheeks, which are covered externally by the ______ and contain the ______ muscles.
Answer:
integument and contain the buccinators muscles.
Explanation:
I am sorry if it is wrong
Describe the theory of evolution in your own words. How does this theory relate to the principle of natural selection?
Answer:
The theory of natural selection was explored by 19th-century naturalist Charles Darwin. Natural selection explains how genetic traits of a species may change over time. This may lead to speciation, the formation of a distinct new species.
Explanation:
Original Question:
Describe the theory of evolution in your own words. How does this theory relate to the principle of natural selection?
Answer and Explanation:
Evolution means the adaption of animals, plants, species, etc. This study ties in with the theory of humans being descended from other animals; specifically chimpanzees. Over the course of time, Animals are believed to adapt to the environment they live in. One common example would be giraffes. In the past, they used to have shorter necks that couldn’t the leaves in a tree. Throughout the years, many breeds tended to have offsprings that had long necks. That is why giraffes have longer necks now.
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Side note: You might want to change your wording if you decide to use my answer. It would be considered plagiarism. I know it might be late but I hope this helps in future reference. Hope I helped!
