Answer:
168 J
Explanation:
Work can be calculated using the following formula.
w=f*d
where w is work, f is force, and d is distance.
Anna applied a force of 84 Newtons, and lifted the baby 2.0 meters.
f=84 N
d=2 m
Substitute these variables into the formula.
w=84 N* 2 m
Multiply
w=168 N-m
A N-m is the same as a Joule, or J.
w= 168 Joules
Anna does 168 Joules of work.
Which of the following leaves the
biosphere once put back into the
atmosphere?
A Nutrients
B. Heat
D. Water
why can AIDS be classified as both an infectious disease and an immune system disorder ?
Answer:
Because AIDS can not only be passed from person to person but it can also affect your immune system in ways other infections diseases can not.
Explanation:
for example: type 1 diabetes is an auto-immune disorder and can not be passed on by bodily fluids. chlamydia is an infectious disease that can be passed on by bodily fluids.
AIDS is an auto immune disorder because it affects the immune system in the same ways that other auto-immune disorders do. this being so it can all so be found in the blood and passed on like an infection where as auto-immune disorders normally dont live in a persons blood.
sorry if this is confusing. hope this helps
Energy "moves from place to place." The term that describes this is___
a. Energy displacement
b. Energy transition
C. Energy transfer
d. Energy movement
Answer:
C. Energy transfer
Which is NOT a reason that a cat or dog owner should take his pet to a veterinarian to get vaccinated against the rabies virus?
A. to fool the pet's body into developing rabies antibodies
B. to protect the pet's body from developing rabies antibodies
C. to introduce a weaker form of the rabies virus in the pet's body
D. to protect the pet's body from future invasions of the rabies virus
Jordan's grandmother uses the juice from squeezed lemons to remove stains from his shirt. He hypothesizes that the juice is the only part of the lemon that is effective at removing the stains, because it’s an acid. Which two steps would help Jordan determine whether his hypothesis is scientifically supported?
Answer: I would say The hypothesis that the juice of the lemon is the only pat of lemon that is capable of removing stains from the t-shirt is because the lemon juice is acidic in nature.
1.) To test the validity of this hypothesis he should test the acidity of different parts of the lemon including the juice, pulp and skin of lemon.
2.) He should also compare the lemon juice with other juices to know weather other juices are also helpful in removing stains from the t-shirt.
( I hope this helped <3 )
How is DNA used as evidence for evolution?
Answer:
Hope this helps!!!!!! I tried my best to answer!
Darwin proposed that evolution could be explained by the differential survival of organisms following their naturally occurring variation—a process he termed "natural selection." According to this view, the offspring of organisms differ from one another and from their parents in ways that are heritable, which happen because of the change in DNA!
Explanation:
Answer:
All species have the same genetic code.
What is one function of plant stems?
to transport water and food
to absorb food from soil
to release water into the air
to take in minerals from soil
I think the answer would be
A) to transport water and food
Module 2: List the two main functions of polysaccharide molecules in living organisms, and explain how their structures relate to these functions.
Explanation:
providing structural support, storing energy and sending cellular communication signals..
polysaccharide are an important class of biological polymers. their function in living organisms is usually structure or storage related.. starch (a polymer of glucose) is used as a storage polysaccharide in plants.
Sam is trying to learn about sexual hormones based on the body due to a rush in blood cells. He wants to learn the most he can to educate others about his research. Based on the topic, which will be the most reliable source for Sam to begin his research.
A. A book about planning sexual activities
B. Scientific research on the body
C. The news paper
D. An age restricted site showing nudity
Answer:
B. Scientific research on the body
Explanation:
B is the most plausible answer because option A and D will not answer your research question about sexual hormones (from a scientific perspective) and option C will have information which will not help you make conclusions since newspaper take their information from other sources and sometimes leave out chunk of data or information to fit it in one page.
Therefore, best option is B to look into scientific research on body where you'll likely encounter research related to blood rushing and sexual hormomes.
Describe Lamarck’s idea about how organisms evolved. Use the giraffe’s neck as an example.
Answer
Lamarckism, a theory of evolution based on the principle that physical changes in organisms during their lifetime—such as greater development of an organ or a part through increased use—could be transmitted to their offspring.
Lamarck believed that the stretching elongated the giraffe's neck, which became a useful characteristic and was passed onto future generations. This resulted in the length of the giraffe's neck increasing over time. It is now commonly accepted that Lamarck's ideas were wrong.
give the name for the material that will fit into the secondary or regulatory site of an allosteric enzyme.
Answer:
Explanation:
Allosteric Enzymes Enzymes sometimes act as their own regulators. Such enzymes are known as allosteric enzymes. One such enzyme is aspartate transcarbamoylase (also known as aspartate carbamoyltransferase),
Explain how the shape of a river's stream bed can affect the river's speed and its power to cause erosion.
Explanation: The shape of a river's stream bed affects the speed and eroding power of a river by influencing the amount of friction between the water flowing through the river and the stream bed below. Friction is the force that opposes the motion of one surface as it moves across another surface. In a river, there is friction between the flowing water and the stream bed beneath it. Where a river is deep, less water comes into contact with the stream bed, so there is less friction. The reduced friction means there is less opposition to the water's motion, so the river flows at a greater speed and has more kinetic energy for erosion. On the other hand, where a river is shallow, more water comes into contact with the stream bed, so there is more friction. The increased friction means there is more opposition to the water's motion, so the river flows at a lesser speed and has less kinetic energy for erosion. Also, the roughness of a stream bed covered with boulders and other obstacles causes the water to flow through the river in a turbulent fashion. This could cause the river to move slower in some cases or erode more in other cases.
*mark as Brainliest ty*
Answer:
It changes the amount of friction there is. There is more friction where water is shallow, and less friction where water is not as shallow. The friction has the power to cause erosion as it causes movement of water.
Timber sold to finance war or as a tactic to oppress or exterminate those who live in the rainforest
is
O conflict timber
O Trade timer
O Migrant Timber
U
Question 3
0.43 pts
Helpp !
One part of the immune response that is specific to a particular pathogen is
the production of
O A. lysozyme molecules
O B. neutrophils
O C. macrophages
D. memory cells
Answer:
Memory cells
Explanation:
Just like with vaccines, the immune response to fight a specific pathogen
5
The outermost layer of the sun is called the
corona
chromosphere
ionosphere
photosphere
If drummers are playing their drums loudly, what can be concluded about how their
hands are moving?
a. They must be moving slowly when they hit the drum
b. They must be moving quickly when they hit the drum
c. They must be tapping the drum softly
d. They must be resting on the drum
Answer:
B
Explanation:
Which of the following terms means "the system used to classify and group
living organisms"?
A. Cladogram
B. Taxonomy
C. Hierarchy
D. Taxidermy
Answer:
B. Taxonomy
Explanation:
Which answer best indicates the dynamic balance of an ecosystem
Why is it so important that we think about waste and what happens to it? *
Yes Its Important
yes it's good important to know about placed because if you think about waste then what saving the earth and remember that and plastic or wood will keep us and USA backlash tired and save future of tomorrow a mother nature and so is a very good thing to think about ways are the best thing about you will reset and two more things and have people and mark my words this happy a lot thank you have a nice day
Answer:
Mainly because it can destroy our lives. Waste is usually thrown into waste pits or places specifically for waste but what happens when there is no more place to put it? It can cause pollution and harm to wild life so if we pay more attention to it and try to stop how much waste is thrown out then maybe the earth will be able to live longer.
Which of the following substances is NOT a carbohydrate?
A : starch
B : glycerol
C : glucose
D : maltose
________________________________
Hey!!
The right answer is glycerol.
Glycerol is not a carbohydrate.
Explanation:
About GlycerolGlycerol is one of the trihydric alcohols.
It is colourless viscous liquid with a sweet taste.
Uses of Glycerol:It is used as refrigerant since it produces cooling on evaporation.It is used for purifying organic compounds by extraction.Hope it helps...
Good luck on your assignment
_____________________________
Out of the following, glycerol is not a carbohydrate it is an alcohol as it has alcohol as functional group .
What are carbohydrates?
A carbohydrate is defined as a bio-molecule which consists of carbon,hydrogen and oxygen atoms which are usually in the ratio of 2:1 with the empirical formula C[tex]_n[/tex](H₂O)[tex]_n[/tex].
This term is most commonly used in biochemistry as a synonym of saccharide which is a group of sugars, starch and cellulose.
They perform various functions in living organisms. They serve as an energy source and as well as structural components . They are a key component in providing nutrition and are found in wide variety of natural as well as processed foods.
Carbohydrates occur as cellulose in the cell walls of plants and is one of the components of insoluble dietary fibers.
Learn more about carbohydrates,here:
https://brainly.com/question/1558514
#SPJ6
Which glial cells support neurons metabolically? A. astrocytes B. microglial cells C. Schwann cells D. oligodendrocytes
Answer:
A. astrocytes
Explanation:
They are well known providers of physical and metabolic support to neurons in an organisms. They are excelled companions in brain energy metabolism. primarily because their anatomical position places them between blood vessels and neurons which allows them to be naturally effective glucose uptake from blood
Through the process photosynthesis, plants and algae transform
light energy into chemical energy. Where in the plant does
photosynthesis take place?
Answer:
Photosynthesis takes place inside the chloroplasts.
Explination:
Green plants use photosynthesis to create energy from carbon dioxide and sunlight. This energy, in the form of glucose, is used by the plant to grow. Photosynthesis occurs within these structures, which contain the substance chlorophyll.
The larger pool of subjects from which a study group is chosen is called the
A representation
B. population
C. sample
D. research subjects
Please select the best answer from the choices provided
A
B
D
Answer:
B. population
An expiriment was done to determine if the rate at wich a patato cooked depended on the temperature of water in which it was boild. What are the independent and dependent variable??
Answer:
The independent variable is the potato and dependent variable will be the temperature
Explanation:
When this experiment is done it consider about the boiling rate of the temperature which it helps to cook the potato. in other words when you do this experiment you will try different temperature levels on the same type of vegetable which is a potato. so the variable called temperature will be dependent because its the variable that we change. and the variable called potato will be the independent.
Which of the following do cells obtain from nutrients in food?
A. lithium
B. helium
C. energy
D. oxygen
Why do two grams of fat provide a different amount of energy than two grams of carbohydrates? (2-3 sentences)
Answer:
Fats are the slowest source of energy but the most energy-efficient form of food. Each gram of fat supplies the body with about 9 calories, more than twice that supplied by proteins or carbohydrates. Because fats are such an efficient form of energy, the body stores any excess energy as fat.
Explanation:
Which of the following environmental conditions is most likely to be a stressor for plants?
A. Extreme temperature
B. Too much oxygen
C. Low salinity
D. Too much carbon dioxide
Answer: C
Explanation:
stress at a divergent plate boundary
Tensional stress happens at these plate boundaries when the plates are moving away from each other. Is this the answer you were looking for?
Answer:
tensional
Explanation:
Are people with hypertension more likely to get infected with the coronavirus than people who are healthy?
Yes or no?
Which features did you include in your answer? Check all that apply.
It’s specific and testable.
It can be used to form a hypothesis.
It is not based on an opinion or values.
It does not relate to the supernatural.
Answer:
Well, it's based on your answers, honestly. you did not post them
