Answer:
Agriculture and domestication probably started in the Fertile Crescent (the Nile Valley, The Levant and Mesopotamia). ... People probably started agriculture slowly by planting a few crops, but still gathered many foods from the wild. People may have started farming because the weather and soil began to change.
Explanation:
Which statement is true about the appendicular skeleton of the human body?
Answer:
I am pretty sure it is, The consists of the bones that form the limbs and the bones that attach the limbs to the axial skeleton. But I am not positive, I hope this helps!!
Explanation:
Option C, It consists of the bones that form the limbs and the bones that attach the limbs to the axial skeleton.
The part of the vertebrate skeleton that has the bones that hold up the body is the appendicular skeleton, which comprises the elements within the limbs, pelvic and pectoral girdle. It holds the bones that produce and uphold the libms and joins them with the axial skeleton. The appendicular skeleton has 126 bones and helps manipulate the upper limbs.
Which two phrases describe a situation that will cause a stationary object to start moving?
A. a net force greater than 0
B. unbalanced forces
C. a net force equal to 0
D. balanced forces
Answer:
A .a net force greater than zero
B. Unbalanced Force
Explanation:
A .When the resultant force on an object is zero, it will remain at rest if it is at rest, or continue to move in a straight line at a constant velocity if it is in motion. So , the answer will be a net force greater than zero .
B . An unbalanced force (net force) acting on an object changes its speed and/or direction of motion. An unbalanced force is an unopposed force that causes a change in motion. A net force = unbalanced force. So , the answer will be unbalanced forces .
Question 4 of 5
Which phrase best describes the particles in a solid?
A. Completely still
B. Closely packed
C. Sliding around
D. Very far apart
how did avery help build our undertanding of genetics
Which statement is true concerning visible light and the
electromagnetic spectrum?
All electromagnetic radiation is considered to be
visible
b
Visible light is not part of the electromagnetic
spectrum
Visible light is a large portion of the
electromagnetic spectrum
d
Visible light is a small portion of the
electromagnetic spectrum,
Answer: D
Explanation: visible light makes up only a very very, very small portion of the entire electromagnetic spectrum
The true statement concerning visible light and electromagnetic radiation is considered to be - d. Visible light is a small portion of the electromagnetic spectrum.
The electromagnetic spectrum is the range of frequencies of electromagnetic waves or radiations. This spectrum also gives an idea about the wavelengths of electromagnetic radiations. The part of the spectrum on their higher to lower energy or frequency range from [tex]10^{4}[/tex] Hz to [tex]10^{18}[/tex] Hz are:
gamma raysX-raysultraviolet radiationvisible lightinfrared radiationradio waves.The visible light is the very small part of the electromagnetic spectrum that ranges from the [tex]400*10^{14} Hz[/tex] to [tex]800*10^{14} Hz[/tex], Visible light is the light that the human eye can see.
Thus, the correct answer is- option d.
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What is a common source of fat within the body that can be used for metabolism
Answer:
oil
Explanation:
Lipids are fat and oils are lipids
Answer:
Your answer is lipids.
Which feature of model 1 best illustrates how biological information is coded in a DNA molecule?
Maltase is an enzyme that catalyzes the hydrolysis of the disaccharide maltose. This process occurs during human digestion when maltase is secreted by the intestine and then converts maltose into glucose. Which two classes of biomolecules are directly involved in this process?
A .proteins and carbohydrates
B. lipids and proteins
C. carbohydrates and nucleic acids
D. carbohydrates and lipids
Answer: D
Explanation:
Carbohydrates and nucleic acids are the two main classes of biomolecules which are involved directly in the process of digestion of maltose through maltase enzyme. Thus, the correct option is D.
What is Maltase?Maltase is a an enzyme which belongs to the alpha-glucosidase enzyme family. These are found in the small intestine's brush bordered cells. The hydrolysis of the disaccharide maltose into two simple sugars such as glucose is catalyzed through the enzyme maltase.
Maltose is a disaccharide which is produced by the enzymatic hydrolysis of starch, which is a homopolysaccharide and this is catalyzed by the enzyme amylase. Maltose sugar is further hydrolyzed by the enzyme maltase to produce two molecules of d-glucose.
Therefore, the correct option is D.
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The _____ photosynthesis reactions convert light energy into chemical energy, which is stored in molecules like ATP. In the ____ photosynthesis reactions, this energy is used to convert CO^2 into carbon sugars.
Answer: A
Explanation:
More than 90% of plants have mycorrhizal associations with fungi. How might this association have evolved (include mechanisms)
Answer:
It is a symbiotic relationship and it evolved because of the benefits both plants and fungi derive from the association.
Explanation:
Mycorrhizal association is a symbiotic association between fungi and plants where both of the benefits from the relationship. The fungi inhabit the root system of plants which increase the ability of the plant's root system to absorb water for it own use and the fungi benefited from it by carbohydrates from plants which is produced as a result of photosynthesis.
Describe where in nature you would see contaminated water actively weathering rocks and how it may differ from non-contaminated water.
Answer:
The contaminated water contains harmful chemicals which results in the cracking of rock.
For example: The feldspar crystals within the granite react with the water chemically to form clay minerals which makes the rock weak and hence result in weathering.
Jaden's father is not sensitive to poison ivy. Jaden is also not sensitive to poison ivy. Jaden's lack of sensitivity to
poison ivy is which kind of trait?
environmental
acquired
learned
inherited
Answer:
Jaden's lack of sensitivity to poison ivy may be an inherited trait.
Explanation:
The poison ivy poisoning is due to the essential oils of this plant, mainly uroshiol, causing a reaction in the skin characterized by intense itching, redness and even burns with flicthenes, manifesting as an allergic reaction of varying severity.
Some people may have a low sensitivity or be insensitive to uroshiol, which does not rule out the possibility that they may become sensitive at some point in their lives.
The fact that Jaden and her father are insensitive to poison ivy venom may be an inherited trait, determined by a resistance to the allergic reaction the plant produces.
Regarding other options:
Environmental, acquired or learned traits, do not determine the resistance to certain hypersensitivity or allergy reactions, which depends on each person's immune response or sensitivity.
Answer:
inherited
took the test edg 2020
WHAT IS THIS PLEASE HELP? correct answer please don’t guess. !
Answer:Its the third
Explanation:
Which two words are paired correctly?
vertebrate, endoskeleton
invertebrate, endoskeleton
vertebrate, autotroph
invertebrate, autotroph
Answer:
I think its B...
Explanation:
Answer:
B.
Explanation:
I'm pretty sure its this one, tell me if I am wrong
I NEED HELP ASAP!!!!!! * IS MY ANSWER
metabolism is a process of breaking down molecules and forming new ones.
Where do most of this occur within the cell?
A-CYTOPLASM ******
B- NUCLEUS
C- DNA
D- CELL WALL
Please answer I will give brainliest
Identify the igneous rock
Answer: Red Volcanic Rock
Explanation: Extrusive igneous rocks, also known as volcanic rocks, are formed at the crust's surface as a result of the partial melting of rocks within the mantle and crust.
Choose the word or phrase that best completes each sentence about the worldwide domestication of plants and
animals.
Different plants were domesticated to grow crops
A major cause of the agricultural revolution was the
A major effect of the agricultural revolution was
Answer:
1. in many parts of the world (c)
2. warming of the earth after the ice age (c?)
3. The creation of a food surplus ( B)
Explanation:
I did it and got it right
Answer:hopefully that helped..
Explanation:
Analogous structures have the _______ structure, ________ funtion.
Answer:
Analogous structures have the Different structure, same function.
For example: wings of insects and birds
What is cancer? Explain what a doctor means when he or she says the cancer has
"metastasized." (Provide examples)
Answer:
Cancer is a disease that has abnormal cells, that begin to divide that then becomes uncontrollable and destroy the body tissue. When cancers has "metastasized" is when it spreads from one part of the body to another part of the body.
Explanation:
As an example, when cancer starts in the lung and then metastasized to the chest or to the rest of the body.
a Scientific theory is best defined as what
Answer:
A scientific theory is a well-substantiated explanation of some aspect of the natural world, based on a body of facts that have been repeatedly confirmed through observation and experiment. Such fact-supported theories are not "guesses" but reliable accounts of the real world.
Explanation:
Hope this helps you. :))
Barbara's teacher wants her to design an oven that can be powered by a renewable resource. Which of the following energy sources could Barbara use?
A
coal
B
gasoline
C
uranium
D
sunlight
Answer:
The answer is sunlight
Explanation:
I hope that's true
Which pair of factors affects the force of gravity between objects? direction and distance mass and distance mass and shape shape and time
Answer:
It's B
Explanation:
Mass and distance affects the force of gravity between objects.
Thus, option B is correct.
What is force of gravity?Force of gravity is defined as the force of attraction between any two objects in the universe.
The force of attraction depends upon the mass of the object and the square of the distance between them.
Mass is the total amount of matter contained by an object.More the matter of the object has, the more the mass.Weight of an object can be zero but mass of the object cannot be zero.
Distance is defined as the amount of space between two places or things. Measurement of distance are kilometer, inch, foot, yard.
Therefore,Mass and distance affects the force of gravity between objects.
Thus, option B is correct.
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What net force must act on the glass in order to make it accelerate to the right at a rate of 5 m/s^2 ? (Hint: Use F = ma.)
A. F = 10 N right
B. F = 2.5 N right
C. F = 5 N left
D. F = 0.5 N left
Answer:
f = 2.5 N right
Explanation:
Answer:
Option B) F = 2.5 N right
Which of the following statements regarding plant and animal cells is incorrect?
Answer:
D.
Explanation:
Animal cells are in the animal kingdom while plant cells are in the plant kingdom.
Answer:
hi
Explanation:
this isn't an answer but i do pacyber too, and im in biolgy, world history, algebra 2, and english 10. amos gracie28444 lets help each other out
Which air mass ALWAYS goes to the bottom when a warm and a cold air mass meet?
Answer:
cold air mass
Explanation:
IF you know in a fire, the hot smoke rises and the cooler air sinks toward the bottom
Discuss how constraints related to biology and management affect the choice of a crossbreeding system. Please be descriptive.
Answer:
Some important constraints:
-Plant breeding: autogamy and allogamy, self-sterility, etc
-Animal breeding: trait compatibility
- Breeding systems in general (i.e., both in plants and animals): barriers for sexual reproduction
Explanation:
Crossbreeding systems consist of the breeding between two breeds in order to develop progeny with particular advantageous phenotypic traits. In-plant crossbreeding systems, it is imperative to have into account whether the plant is autogamous (reproducing by self-pollination) or allogamous (reproducing by cross-fertilization), because it will affect the fitness of the progeny resulting from these breeds. Moreover, the biological mechanisms of self sterility and compatibility must be also taken into consideration. In-animal breeding systems, it is important to have into consideration that phenotypic traits we desire to obtain in the progeny must be compatible between races. In addition, the barriers for sexual reproduction are also an important issue both in plant and animal breeding systems, it thus being impossible, for example, to get a breeding between Chihuahua and Great Dane dogs.
If you wanted you duplicate conditions in a laboratory that produced metamorphic rocks what would you need to do
Apply high pressure to the rock. Apply high temperature to the rock. Apply high temperature and pressure to the rock.
QUESTION 1
Fill in the blank with the correct vocabulary terms. Not all terms will be used.
observations hypothesis Biotic Abiotic Evidence Homeostasis Biology quantitative
qualitative
Inference
is the study of life. When making scientific scientists often begin by formulating a
numbers are called and observations that involve the five senses are called
Types of observations that involve
Biology
observation
hypothesis
quantitative
qualitative
What do animals do with the carbon dioxide produced in their cells during cellular respiration?
Answer:
Explanation:
During cellular respiration animal cells combine oxygen with food molecules to release energy to live and function. Remember that cellular respiration produces carbon dioxide as a waste product. ... They release the carbon dioxide into the air as a waste product. Plants help animals and animals help plants.
The carbon dioxide produced in animal cells during cellular respiration is considered a waste and must be disposed of accordingly.
The carbon dioxide generated from cellular respiration in animal cells must be disposed off the cell because their build-up can be toxic to the cell.
Being a gas, carbon dioxide is got rid of by diffusing out of the cell while the oxygen required for cellular respiration usually diffuses in.
When carbon dioxide is allowed to accumulate in the cell, it might affect other processes such as the partial pressure of oxygen in the cell, and so on.
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What two basic geologic processes contributed to the formation of folded mountain ranges like in Glacier National Park?
A. Folding and breaking of ingenuous rocks and tectonic uplifting.
B. Faulting of sedimentary rock and erosion.
C. Volcanic ash buildup and faulting of rocks.
D. Folding and breaking of sedimentary rocks and erosion.
Answer:
D. Folding and breaking of sedimentary rocks and erosion.
The two basic geologic processes that contributes to the formation of folded mountain ranges are ; ( D ) Folding and breaking of sedimentary rocks and erosion
Folded mountains are formed by the collision of two or tectonic plates, the movement and collision is mostly caused by massive erosion.
Tectonic plates are formed by the breaking down of the earth's outermost layer into large rock slabs which lies on a molten layer of rock these large slabs are components/make up the sedimentary rocks
Therefore the folding and breaking of sedimentary rocks caused by massive erosion leads to the formation of folded mountain ranges.
Hence we can conclude that The two basic geologic processes that contributes to the formation of folded mountain ranges are ; Folding and breaking of sedimentary rocks and erosion
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