2. Examine the arm bones of the two skeletons. Was Grandmother right- or left-handed? How
about Grandfather?
Answers
Answer:
Grandmother was Left-handed
Explanation:
I can tell this because she had thicker upper and lower arm bones on her left arm, compared to her right arm, telling me her left arm was dominant.
Related Questions
Another students says that the earth’s magnetic poles have flipped many times in the past. How would you evaluate their statement?
Question 18 options:
This is a true statement.
This false because the magnetic field is fixed and cannot change.
This is false because a compass always points at the true North Pole.
This is false because the magnetic field has only flipped once.
Answers
Answer:
True
Explanation:
As a matter of geological record, the Earth's magnetic field has undergone numerous reversals of polarity. We can see this in the magnetic patterns found in volcanic rocks, especially those recovered from the ocean floors. In the last 10 million years, there have been, on average, 4 or 5 reversals per million years.
Which statement best describes the function of nucleic acids?
A. Stores genetic information and helps to make proteins
B. Increases the rate of chemical reactions
C. Stimulates metabolism in all body cells
D
Activates secretion of the body's hormones
Answers
Answer:
A. stores genetic info and helps make proteins.
Explanation:
Nucleic acids are DNA and RNA.
The statement that best describes the function of nucleic acid is stored genetic information and helps to make proteins. The correct option is A.
What is nucleic acid?Nucleic acid is a macromolecule. Nucleic acid is made up of nucleotides. The composition of nucleotides is a 5-carbon sugar, a phosphate group, and a nitrogenous base.
Nucleic acid is the main component of the genetic material of the living organism. They are DNA and RNA. DNA is the main genetic material of animals and plants, and RNA is found in some bacteria and some plants.
DNA and RNA store the genetic information of the organism. As this, nucleic acid also contains genetic material. This genetic information is used in synthesizing proteins.
Thus, the correct option is A. Stores genetic information and helps to make proteins.
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Describe the structure and function of the cell membrane.
Answers
Answer:
The cell membrane, therefore, has two functions: first, to be a barrier keeping the constituents of the cell in and unwanted substances out and, second, to be a gate allowing transport into the cell of essential nutrients and movement from the cell of waste products.
Explanation:
Sucrose is made of which simple sugars?
glucose and fructose
fructose and galactose
galactose and cellulose
cellulose and glucose
Answers
Answer:
it is made of
glucose and fructose.
Sucrose is made up of simple sugars glucose and fructose. Thus, the correct option is A.
What are Simple sugars?Simple sugars may be defined as carbohydrates in their most basic form. Such types of carbohydrates contain only one to two sugar molecules and are digested quickly.
Monosaccharides and disaccharides are examples of simple sugars. Examples of simple sugars are glucose, fructose, and galactose.
Therefore, Sucrose is made up of simple sugars glucose and fructose. Thus, the correct option is A.
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24. Why is pure water neutral?
a, more hydronium than hydroxide
b. equal numbers of hydronium and hydroxide
c. more hydroxide than hydronium
d. none of the above
Answers
explanation- in the case of pure water there are always going to be the same number of hydrogen ions and hydroxide ions present.
Answer:
B
Explanation:
a)shrink
b)swell
c)neither
Answers
Select all of the following that are a result of heating up a solution?
Molecules will move faster
Molecules will slow down
Molecular movement will not change
More collisions will occur between molecules
Answers
Answer:
a
Explanation:
When heat is added to a substance, the molecules and atoms vibrate faster. As atoms vibrate faster, the space between atoms increases. The motion and spacing of the particles determines the state of matter of the substance. The end result of increased molecular motion is that the object expands and takes up more space.
The results of heating up a solution are:
Molecules will move faster
More collisions will occur between molecules
According to the kinetic molecular theory, when a solution is heated up:
The temperature of the solution risesThe attractive forces binding the molecules weakensThe speed of the molecules increases. This means that the molecules move faster than before The rate of collision between the molecules increases. This is because of an increase in the Kinetic Energy possessed by the molecules as the temperature risesTherefore, among the given options, the results of heating up a solution are:
Molecules will move faster
More collisions will occur between molecules
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Which element is more difficult to take electrons away from tin or Gallium and why ?
Answers
Cesium (Cs) in particular can surrender its valence electron quite conveniently than lithium (Li). In fact, the ease with which the alkali metals give up an electron varies as follows: > Cs > Rb > K > Na Li is the most likely to lose an electron, followed by Cs and Li.
What is reactivity?In chemistry, reactivity is the impulse that causes a chemical substance to undergo a chemical reaction, either on its own or in conjunction with other materials, resulting in the release of energy.
The reactivity of an element is a measure of how easily it will combine with other elements to form substances.
The number of electrons in an atom's outermost shell determines its reactivity. Noble gases have low reactivity so even though their electron shells are complete.
Cesium (Cs) in particular can more easily surrender its valence electron than lithium (Li).
In fact, the alkali metals' ability to give up an electron varies as follows: > Cs > Rb > K > Na Li has the highest probability of losing an electron, followed by Cs and Li.
Thus, these are some elements that is more difficult to take electrons away from tin or Gallium.
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In the atmosphere, 50% of the air lies below an altitude of
Answers
Answer:
it is 89.0000655
Explanation:
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In the atmosphere, 50% of the air lies below an altitude of 89.0000655.
What do you mean by altitude of atmosphere?Exosphere. Located between about 700 and 10,000 kilometers (440 and 6,200 miles) above Earth's surface, the exosphere is the highest layer of Earth's atmosphere and, at its top, merges with the solar wind.
The commonly accepted end of earth's atmosphere falls within the thermosphere at 62 miles (100 kilometers) above the earth's surface. This commonly accepted boundary is called the Kármán Line.
The Stratosphere extends around 31 miles (50 km) down to anywhere from 4 to 12 miles (6 to 20 km) above the Earth's surface. This layer holds 19 percent of the atmosphere's gases but very little water vapor.
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what is the antonym of misuse
Answers
Answer:
To Cherish or Save something or to Care for something or benefit
Explanation:
Answer:
Use is the answer.
I hope it helps
Thank U
In addition to liquid precipitation, which are present when freezing rain occurs. Choose one.
- Warm temperatures
- Cold surfaces
- Ice pellets
- Snowflakes
Answers
Answer:
Warm Temperature
Explanation:
Answer:
i think its A sorry if im wrong
Explanation:
To increase efficiency of cell processes, cells have adapted to do which two things?
Answers
Answer:
divide and develop organelles
Explanation:
I’m snapdragons flower color is controlled by incomplete dominance...
Answers
food contains several components called as?
Answers
Answer:
These components are called nutrients. The major nutrients in our food are named carbohydrates, proteins, fats, vitamins and minerals. In addition, food contains dietary fibers and water which are also needed by our body.
Explanation:
what system sends "electrical" signals around your body
Answers
Answer:
The nervous system is a complex network of nervous tissue that carries electrical messages throughout the body. It includes the brain and spinal cord.
Humans have two types of communication systems. These are the nervous system and the endocrine (hormone) system. These systems regulate body processes through chemical and electrical signals that pass between cells
Observing a human tissue sample under a microscope would be an example of what division of anatomical study?
Answers
Answer: Histology is the study of the microscopic anatomy of cells and tissues of plants and animals. It is performed by examining a thin slice (section) of tissue under a light microscope or electron microscope.
Explanation:
Identify the organelles in the cell to the right
Answers
Answer: A-Vacoule
B-Chloroplast
C-cell membrane
D-Golgi apparatus
E-Endoplasmic reticulum
F-Cell wall
Explanation:
Answer:
dentify the organelles in the cell to the right.
A
✔ vacuole
B
✔ chloroplast
C
✔ cell membrane
D
✔ Golgi apparatus
E
✔ endoplasmic reticulum
F
✔ cell wall
The organelles in a plant cell are labeled. Part A is a large hollow structure at the center of the cell. Part B is a leaf-shaped structure. Part C is the lining of the cell. Part D is made up of stacked circles. Part E is a network of membranous tubules. Part F is the outside of the cell.
Explanation:
How is radar used to forecast weather?
It shows areas of high and low pressure.
It collects data in the upper atmosphere.
It collects weather data as part of a network around the country.
It locates and tracks storms, and follows the path of storm systems.
Answers
Answer:
D. It locates and tracks storms, and follows the path of storm systems.
Explanation:
It's correct on Edge 2021
Radar is used to forecast weather through the following:
By locating and tracking stormsFollowing the path of storm systems.What is a Radar?Thus involves the use of radio waves to determine the distance, angle, or relative velocity of objects.
This is why it is used locating and tracking storms, and following the path of storm systems during weather forecasts,
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Aphids are tiny insects that feed on plants. Ladybugs are helpful to plants because they eat aphids.
Which type of organism are aphids in this scenario?
decomposers
predators
prey
producers
Answers
Answer:
Prey
Explanation:
The aphids are the prey of the ladybug.
Answer:
c
Explanation:
Where do Earth’s convection currents occur?
A the lithosphere
B tectonic plates
C the asthenosphere
D the subduction zone
Answers
Answer:
B
Explanation:
B
Endoplasmic reticulum the Golgi apparatus, vacuoles, and lysosomes in a eukaryotic cell are made up of mostly what?
Answers
Answer:
Glucose (I think)
Explanation:
help pls help pls question is above
Answers
It is eitheir b or d
Which of the following is true concerning pastoralism?
a.
It occurs in small areas of land with high yields.
b.
It occurs in forests and grasslands.
c.
It is a modern agricultural technique.
d.
It revolves around herding livestock.
Please select the best answer from the choices provided
A
B
C
D
Answers
Answer:
D
Explanation:
Answer:
It revolves around herding of livestock
do you think a hand-crank flashlight would be a good energy system for the rescue workers? Why or why not?
Answers
Answer:
No.
Explanation:
No, hand-crank flashlight would not be a good energy system for the rescue workers because the light turns on by applying muscle force on the hand-crank flashlight and after that, the device convert muscle force into electric energy and the light turns on and we know that the rescue worker have a tough job which requires both hands so this hand-crank flashlight is not useful to him.
Enzymes speed up chemical reactions. Which statement correctly identifies the function of the enzymes involved in DNA replication?
A: Helicase adds hydrogen bonds to the template strand DNA polymerase breaks nitrogen bases
B: Helicase adds nitrogen bases to the template strand, DNA polymerase breaks hydrogen bonds
I
C : Helicase breaks nitrogen bases in the template strand. DNA polymerase adds hydrogen bonds
D : Helicase breaks hydrogen bonds in the template strand DNA polymerase adds nitrogen bases
Answers
Answer:
D: Helicase breaks hydrogen bonds in the template strand, DNA polymerase adds nitrogen bases
Explanation:
DNA replication is the process whereby DNA content is duplicated. This process of DNA replication is carried out with the aid of certain enzymes. Two of those important enzymes as stated in this question are DNA Helicase and DNA polymerase.
- DNA Helicase is the enzyme that breaks the hydrogen bonds that holds the two DNA strands in the molecule together. This separates the double-stranded DNA into two single strands.
- DNA polymerase is another enzyme that which carries out the nucleotide synthesis. DNA adds nitrogen bases to the new DNA strand based on what it reads on the DNA template
please help jdixnwjdj
Answers
Answer: Homeostasis
Explanation: One way that a cell maintains homeostasis is by controlling the movement of substances across the cell membrane. The lipid bilayer is selectively permeable to small, nonpolar substances. Proteins in the cell membrane include cell-surface markers, receptor proteins, enzymes, and transport proteins.
Type the correct answer in the box. Spell all words correctly.
What is Teddy's organization trying to accomplish?
Teddy is working for a nonprofit organization that urges people to stop using products with CFCs. Through this Initiative, Teddy's organization
hopes to reduce the concentration of
in the atmosphere.
Answers
Answer:
Greenhouse gases
Explanation:
Teddy is working for a nonprofit organization that urges people to stop using products with CFCs. Through this Initiative, Teddy's organization hopes to reduce the concentration of greenhouse gases in the atmosphere.
Greenhouse gases deplete the ozone layer thereby causing global warming as a result often increase in the intensity of Sun rays reaching the earth.
Example of greenhouse gases include chlorofluorocarbon, nitrogen, water vapor etc
PLS HELP!!!!!!
A ____ reaction is the change that takes place when two or more substances interact to form new substances.
Answers
Answer:
I think its chemical.
Explanation:
SORRY IF WRONG!! :(
Answer:
Chemical
Explanation:Give the precious smol bean the brainliest they deserve.
FAST PLEASE!!!!!!!! IM BEING TIMED HELP!!!!!! BRAINLYEST
Caused by differences in the density of ocean water; flows slowly.
Gulf Stream
deep current
surface current
Answers
Answer:
it is either B or C but probably C
What cellular process is occurring in the organelle labeled A?
(5 Points)
Students constructed a diagram to represent two related cellular processes.
F. Photosynthesis
G. Cellular respiration
H. DNA replication
J. Protein synthesis
Answers
Answer:
F. Photosynthesis
Explanation:
The organelle pictured (a chloroplast) seems to be absorbing energy from the sunlight and that is included in the process of photosynthesis.
The carbohydrates (glucose) are formed by the process of photosynthesis in the chloroplast of the cell which then sent to the mitochondria for the production of ATP through glycolysis. Thus, the correct option is F.
What is Photosynthesis?
Photosynthesis is the process of conversion of light energy (sunlight) into chemical energy (glucose). This process takes place in the chloroplast of plant cell where chlorophyll is present, this pigment (chlorophyll) is responsible for trapping the sunlight which is responsible for conduction of photosynthesis.
The products of photosynthesis (glucose) is sent to the mitochondria of cell for the production of ATP by the process of glycolysis. This ATP is then utilized by the cell in other cellular mechanisms.
Therefore, the correct option is F.
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