Answer:
the cell wall surrounds the plasma membrane of the cells and provides strength and protection against mechanical and osmotic stress.
Question 2 of 10
How many hydrogen atoms are present in each water molecule?
A. 2.
B. 4
C. 3
D. 1
Answer:
A
Explanation:
A water molecule consists of three atoms; an oxygen atom and two hydrogen atoms
Answer:
there is two hydrogen atoms
What two componets are often found as part of a enzyme
Answer:
The two components are often found as part of an enzyme are: Protein: proteins increase the rate of reaction that takes place within the living organism. proteins consist of one or more chains of amino acids that make macromolecules.
Explanation:
List all the things in a plant cell.
Answer:
this guy above me is right
Explanation:
What are the functions of biomoleclues?
Answer:
•A biomolecules involves in several processes such as energy storage (carbohydrates)
•catalyzing the biochemical reactions (hormones)
•storing or transmitting the genetic codes (DNA/RNA)
•altering biological and neurological activities.
Previous research shows that, in humans, the pelvic opening tends to be wider in females than it is in males. Required:a. Generate a hypothesis about what causes this pattern.b. Describe the type or types of data you would ideally collect to test this hypothesisc. Describe what hypothesis data might support the hypothesis (For example, the hypothesis would be supported if we found data that indicated....)d. Describe what hypothetical data might regret the hypothesis and how would you rewrite your hypothesis to account for your findings and begin again.
Answer:
Throughout the clarification portion elsewhere here, the context of the query is explained.
Explanation:
(a)
Null Hypothesis: The distance including its pelvic area between women and men does not vary.(b)
The X-ray as well as CT-scan of 20 stable people from various age categories will be obtained from the pelvic area. We're going to get statistics on the same combination of women and men. Way of measuring and cross-reference the pelvic area however according to gender. To assess the degree of importance, submit statistical measures (T-test).(c)
The width including its pelvic region must've been identified and therefore should not vary substantially throughout males and females to validate the data.(d)
Although we consider that the disparity in men's and women's pelvic regions is substantially different, the theory will be dismissed. Let's say the theory has been dismissed. But now the latest theory would be that "Women throughout the pelvic region are larger versus men."I need help please :/
Answer: By looking at the graph I can determine that the answer must be D.
Explanation: Think about it if the question is asking you to look at the graph and determine the capacity then we know that they are asking for the area with the most salmon which so happens to be area A. All in all, the answer must be D.
Once M’Kenna’s small intestine healed, she started eating foods with dairy again and these foods no longer made her sick. Lactase is an enzyme that helps break down foods with dairy. In a healthy system, lactase is released from the tips of the villi in the small intestine. Using this information, make a prediction for why the damage caused by celiac disease causes problems when a person eats dairy.
Answer:
Damage to the villi means less lactase released, so the body can't break down dairy.
Explanation:
If the small intestine is damaged, then that can mean that the villi are damaged. The villi usually release lactase, so this process will be compromised.
Less lactase released means that the body will have less of the enzyme required to break down lactose, the sugar present in dairy. Thus, individuals with celiac disease will struggle to digest dairy products
Where do rivers usually begin?
O at the ocean
O at groundwater outlets
O in mountainous regions
O in lakes and larger rivers
Answer:
Where do rivers usually begin?
C:
in mountainous regions
Explanation:
Elementary my dear Watson, elementary.
Answer:
Where do rivers usually begin?
C
in mountainous regions
4
The discovery of cells was made possible by the invention and refinement of the microscope. Over the years, different individuals provided evidence
for what is now known as the cell theory, Four scientists are primarily credited with establishing the three basic concepts of the cell theory
Mark one box in each row of the table below to identify the scientist(s) most associated with the cell theory concept listed
Schleiden and
Schwann
Hooke
Virchow
All living things are made of cells; plants and animals are
made of cells
Cells come from cells: diseased cells produce diseased cells
The cell is the basic unit of life: cells can be studied
scientifically
Answer:
All choices are correct
Explanation:
The most well known was a botanist who studies plants too realized that plats,living things are made of cells so most likely the answer would be all living things are made of cells
I hope this helps, I am only in the 7th grade and this was pretty easy to me
This trophic level is the base for the
entire food web.
A. heterotrophs
B. homotrophs
C. autotrophs
Answer: autotrophs
Explanation: I got it correct.
Essay Questions
What is Anthropology? To receive full points for this question, you must: Define Anthropology • Identify and briefly describe the four subfields of Anthropology • Briefly describe the doctrine of holism as it appears in the Kottak Text Choose one example of research in a particular society from any assigned reading. Explain how this example uses a holistic approacth. • Indicate which subdisciplines of anthropology contributed to your selected reading, and in what ways they contributed.
What are the characteristics of culture? To receive full points for this question, you must: • Identify and define six characteristics of Culture • Select an article from the white "Annual Editions" reader and provide the main point of the article. Which of the six characteristics of culture appear in the article? Give specific examples with your discussion of each definition.
I choose the Article is Eating Christmas in the Kalahari
Bonus Problem, for 5 bonus points: If you could have any job in Anthropology, what would you do, and why? To recieve full points for this question, you must: • Indicate what your favorite job in Anthropology would be, and why. • Give at least one example from any two assigned readings that pertain to your choice.
My favorite Job in Anthropology is Anthropologist .
Answer:
the study of human culture, societies and development
Why are the enzymes in snake venom so dangerous to the human body?
Answer:
Snake venom involves enzymes, proteins and substances with a cytotoxic, neurotoxic effect and coagulants.
Explanation:
Snake venom is very deadly because of the enzymes it contains. For example, Snake venom hinders cholinesterase which causes loss of muscle control.
_______carries oxygen, bound to hemoglobin, to deliver to the tissues. This is an anucleate cell type.
_______ important in the process of blood clotting. Generated from the megakaryocyte.
_______short-lived, phagocytic cell that is quick to respond to pathogen infection. Most abundant of the leukocytes.
_______used in the immune response, as either B- or T-cells.
_______wandering blood cell. Largest of the leukocytes.
_______phagocytic cell that engulfs antibody-covered pathogens; an acidic granulocyte with bi-lobed nucleus.
_______ releases histamine and heparin. Least abundant leukocyte.
Red blood cell (or erythrocyte): carries oxygen, bound to hemoglobin, to deliver to the tissues. This is an anucleate cell type.
Platelet (or thrombocyte): important in the process of blood clotting. Generated from the megakaryocyte.
Neutrophil: short-lived, phagocytic cell that is quick to respond to pathogen infection. Most abundant of the leukocytes.
Lymphocyte: used in the immune response, as either B- or T-cells.
Monocyte: wandering blood cell. Largest of the leukocytes.
Eosinophil: phagocytic cell that engulfs antibody-covered pathogens; an acidic granulocyte with bi-lobed nucleus.
Basophil: releases histamine and heparin. Least abundant leukocyte.
If 1/32 of a parent material is left, compared to 31/32 of daughter, and the half-life is 50,000 years, then how
old is the sample?
--
Answer:
251449 years
Explanation:
We can obtain the age of the sample by using the formula;
t1/2 = t ln2/ln(No/Nt)
Where;
t1/2 = half life = 50,000 years
t= elapsed time = the unknown
No = amount of radioactive material originally present
Nt= amount of radioactive material after time (t)
Note;
Since Nt/ No = 1/32
Then No/Nt= 32/1
Substituting values
t= t1/2 ln(No/Nt)/ln 2
t= 50000 × ln(32/1)/ln 2
t= 50000 × 3.47/0.69
t= 251449 years
Someone help me plz
Answer:
polyploldy is the answer
Which two phrases describe the nature of an electromagnetic force?
A. Produced by interactions between electrically charged objects
B. Acts only when objects touch each other
C. Not a fundamental force of nature
D. Produced by interactions between magnetic objects
Answer:
opposite charges attract one another.
Like charges.repel
THE MUSCULAR
SYSTEM
Movements YOU CAN
VOLUNTARILY and
INVOLUNTARily clo
are controued by
the muscular System
more
SMOOTU Muscles
heb operate organi
OLUNTARY
e footh you
den
CARDIAC muscles
keep the heart Png
involuntary
3
all in
your
WORK
TUN
cons
Internal
1
Skeletal muscles
+Move your bones
*Voluntary
bladder
2
Toke
turns
Contracting
& Piping
4
4
Match the word phrase with the correct place on the chart."
1
2
3
4
Constantly at Work
Stomach
Connects Bones to Tendons
Typically Work In Pairs
Answer:
lots of spelling errors and unreadible words
Explanation:
How can transmission,reflection, and absorption affect a wave
Answer:
When a light wave with a single frequency strikes an object, a number of things could happen. The light wave could be absorbed by the object, in which case its energy is converted to heat. The light wave could be reflected by the object. And the light wave could be transmitted by the object.
What is transdifferentiation?
Answer:
a rare transformation of cells other than stem cells into different cell type
Answer:
the rare natural transformation of cells othwr than stem cells into a diffrent cell type
What structure are present in both plant and animal cells?
Answer: Cell membrane
Explanation: Cell membranes are present in both plant and animal cells to filter things
Hydrogen bonds form between which types of elements?
Answer:
Hydrogen bonding occurs only in molecules where hydrogen is covalently bonded to one of three elements: fluorine, oxygen, or nitrogen. These three elements are so electronegative that they withdraw the majority of the electron density in the covalent bond with hydrogen, leaving the H atom very electron-deficient
Explanation:
How might a dramatic decrease in vegetation lead to a decrease in a prey species?
Maria wondered if different colors of plastic wrap affected the time for bread to mold. She wrapped a
slice of bread in clear plastic wrap. Before wrapping the bread she placed 5ml of water in the center of
the bread. She repeated the process with a slice of bread using red plastic wrap & a slice of bread using
blue plastic wrap. The bread came from the center of the same loaf. In each case she used the same
amount of water and the same brand of plastic wrap. She wrapped the different slices of bread in the
same way.
Independent variable:
I
Dependent variable:
Control:
Answer:
Explanation:
An independent variable can be described as the variable that is intentionally altered during the experiment by the researcher and is not affected by any other variable involved in the course of the experiment. From this description, the independent variable in the question are the "plastic wraps".
A dependent variable can be described as the variable that is been experimented on or has the tendency to be affected by the independent variable. From this description, the dependent variable here is the "time" it will take for the bread to mold.
The control of an experiment can be described as the "normal" or the "standard" experiment in which other experiments in the same research of the same nature are compared with. From this description, the control of this experiment is the experiment done involving the clear plastic wrap.
i really need help sap
Answer:
I do not think there are any, in this case, it says to submit answer.
Explanation:
( 15 points! ASAP PLEASE ) Choose one of these two scenarios, and use the scenario to demonstrate the meaning of E = KE + PE. Assuming the total energy is 10 (10E), write the equation for each step outlined in the scenario you choose.
A child ready to slide down a slide
While sitting at top:
Half way down slide:
When reaching the bottom of slide:
A child on a swing
At highest point in swing:
Part way down arc:
At bottom of arc:
Answer:
I choose the slide so here is the answer
Explanation:
At the highest point: 10E = 0KE + 10PE
Part way down: 10E = 5KE + 5PE
At bottom: 10E = 10KE + 0PE
In both the scenario, the object will experience different P.E. and K.E. at different situations.
At the highest point: 10E = 0KE + 10PE
Half-way down: 10E = 5KE + 5PE
At bottom: 10E = 10KE + 0PE
What is Total Energy?The total energy of a body is the sum of its potential energy and kinetic energy. Potential energy is the stored energy in any object or system. This energy is not affected by the external environment including air and height.
On the other hand, Kinetic energy is the energy present in a system or object which is in motion. The formula for the determination of potential energy and kinetic energy are as follows:
E = K.E. + P.E.
where, E = Total energy of an object
K.E. = Kinetic energy of an object
P.E. = Potential energy of an object
K.E. = 1/2m.v²
where, m = mass of an object
v = velocity of an object
P.E. = m.g.h
where, m = mass of an object
g = acceleration due to gravity
h = height
In the given scenario, while sitting at the highest point: 10E = 0KE + 10PE (K.E. is zero as the body will come at rest v = 0)
Half- way down: 10E = 5KE + 5PE (body will experience both P.E. and K.E.)
At bottom: 10E = 10KE + 0PE (Here, the height is zero hence P.E. is zero)
Same goes with the child swinging.
Learn more about Kinetic Energy here:
https://brainly.com/question/999862
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ribosomes are the most
essential organelle in the cell. Include Evidence of at least 3 organetles that support the ribosome in accomplishing its fonction for at the cell.
Answer: Ribosomes work along with most of the organelles because they make the proteins that they need to perform. Mitochondria, which generate energy by breaking down carbohydrates, and chloroplasts, which store energy as sugar for plants, algae and some fungi, have their own DNA along with ribosomes to read its instructions. Messages from the nucleus are sent into the endoplasmic reticulum where the ribosomes are located.
Explanation:
The ribosome primarily functions as an organelle for the synthesis of proteins. The 3 organelles that help ribosomes in accomplishing their functions include the nucleus, the Golgi apparatus, and the endoplasmic reticulum.
In order to successfully synthesize proteins, hereditary information on DNA must first be transcribed into genetic codes as messenger RNA in the nucleus. Thereafter, the mRNA undergoes some processing before being transported from the nucleus to the cytoplasm where it binds with the ribosome and gets translated to amino acids.
The amino acids are linked together by peptide bonds to form the primary structures of proteins. The proteins are then folded in a specific manner by the Golgi apparatus depending on the functions they are to perform.
After folding, the synthesized proteins are then transported to their target sites by the same Golgi apparatus via the channels created by another organelle known as the endoplasmic reticulum.
More on protein synthesis can be found here: https://brainly.com/question/1815819
Which two letters in the
diagram above identify
parts of the lipid bilayer?
A and D
A and E
B and C
C and D
The phospholipid bilayer is made of two parts, the head and tail. The head is hydrophilic whereas the tail is hydrophobic.
What is Phospholipid bilayer?Phospholipids, which are made up mostly of fatty acids and alcohol, make up the majority of the cell membrane. A phospholipid bilayer is the name given to the two layers of phospholipids that make up the cell membrane.
A phospholipid molecule has two tails and a head. The tails "detest" water, while the head "loves" it (hydrophilic) (hydrophobic). The water-loving heads point either toward the cytoplasm or the fluid surrounding the cell, while the water-hating tails are on the exterior of the membrane.
If the hydrophobic molecules are small enough, they can readily flow through the cell membrane as the inside of the membrane also despises water. Steroids and small lipids are hydrophobic and easily pass through the membrane.
Therefore, The phospholipid bilayer is made of two parts, the head and tail. The head is hydrophilic whereas the tail is hydrophobic.
To learn more about hydrophobic molecules, refer to the link:
https://brainly.com/question/1407181
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Why is the structure of the neuron up to 1 meter long?
Answer:
The cell body of a motor neuron is approximately 100 microns in diameter and as you now know. the axon is about 1 meter (1,000) millimeter in length.
Explanation:
So the axon of a motor neuron is 10,000 times as long as the cell body is wide.
The three major literary genres are drama, poetry, and __________.
Answer:
prose
Explanation:
• What are three infectious diseases?
• What are three ways that infectious diseases can be prevented?
• How does a vaccination work?
• How do antibiotics work on bacteria and why don’t they work on viruses?
Answer all questions. Leave none unanswered