Which is a problem associated with a declining population size?
scarce food supplies
limited health care
an aging population
Answer:
scarce food suppies and health care
Explanation:
What would a virus do if it never connected with a living cell?
Answer: It would not be able to reproduce.
Explanation: A virus tricks cells into making copied of a virus, instead of copies of white and red blood cells. They reproduce viruses which go on, and do the same process. If the virus could not connect to the cell, it would not be able to reproduce.
Hope this helps!
Are hexane and cyclohexane isomers? Why or why not?
Answer:
No, they are not isomers
Explanation:
"The molecular formula of cyclohexane is C6H12 while of hexane, it is C6H14. The isomers are those molecules which have same molecular formula. Hence on this bases, the above two are not isomers"
3. Which of the following statements explains the importance of carbon in cells? (Choose all that apply
carbon is a waste products for a cell.
i just took the test
The statement that explains the importance of carbon in our cells is that carbon affects the function of the cell. So the correct option is A.
What is the importance of carbon?
The most common chemical element present on our Earth is carbon. It has the symbol C and an atomic number of 6. The carbon atom is a member of the fourteenth group present on the periodic table.
The word carbon is derived from the Latin word 'carbo', which means coal. Carbon is also the 15th most abundant element that is present in the crust of the Earth. On the earth, carbon is the fourth most abundant element ranked after hydrogen, helium, and oxygen.
Carbon atoms, when bonded together in different ways, are called as allotropes of carbon. Diamond, graphite, and amorphous carbon are the three allotropes of carbon.
They have different properties. Graphite is one of the softest known substances while diamond is the hardest known substance.
Therefore the correct option is A.
Read more about carbon, here
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A control experiment is...
a. is one in which a lead scientist controls a group of scientists conducting an experiment.
b. Is always conducted using one large, random sample group.
c. Is one in which the condition suspected to cause the effect is compared to the same situation without the suspected condition.
d. Rarely provides the answer to a question posed by a theory
Answer:
C.Is one in which the condition suspected to cause the effect is compared to the same situation without the suspected condition.
Explanation:
Which of the following kinds of questions cannot be answered within the limits of science?
you are testing a new blood glucose monitor. every sample that you take gets a reading of 80. which of the following terms best describes the monitors readings?
Answer:
the monitor is reliable but there is not enough info. to comment on validity
Explanation:
The monitor is consistent - which is reliability, but you can't be sure the results it is returning are correct based on the question, so validity can't be determined.
I need help please with this...
Answer:
If the order is solid, liquid, gas
Explanation:
Compressibility:
solid- not compressible
liquid- not compressible
gas- compressible
Shape and Volume
solid: definite shape and definite volume
liquid: indefinite shape and definite volume
gas: indefinite shape and volume )varies with temperature and other factors)
who used a compound microscope to see chambers within cork amd named them cells
Answer:
robert hooke
PLEASE HELP ASAP!!!!!!!
Plants and animals are both made up of eukaryotic cells. Does this mean they have the same kinds of organelles? Why or Why not?
Answer:
They do not have the same kind of Organelles.
Explanation:
Animals have things like Kidneys and such, animals and plants DO NOT have the same Organs.
Can somebody help me match them
why can proteins perform so many different functions?
Answer:
proteins are the most diverse biomolecules in the earth. performing Many functions required for life. foods in which protein is present eggs, chicken, milk etc. proteins do most of the work in cells and are required for the structure, function and regulation of the body's tissue and organs
3'AGGTCAGGT 5
Which of these is the correct complementary DNA strand for the segment shown?
Answer
A S'AGGTCAGGT 3
B
S'ACCUGAGGU 3
C 5'TGGACTGGA 3
D 5' TCCAGTCCA 3
The correct complementary DNA sequence of 3'AGGTCAGGT 5 is - D. 5' TCCAGTCCA 3'
DNA is made of two strands of DNA strands coiled together and form a ladder-like shape. DNA molecules have four nucleotide bases that joined both strands together that are Adenine (A), Guanine (G), Thymine (T), and Cytosine(C).
Each nitrogenous base has its own complementary base in a double-helical structure.The A is complimentary T and G will have CThe complementary strand is always present in an antiparallel directionIf one strand is 3' to 5' then the complementary strand would be 5' to 3'So, in the given sequence: 3'AGGTCAGGT 5
Complementary sequence: 5' TCCAGTCCA 3
Thus, the correct option is: option D. 5' TCCAGTCCA 3
Learn more about DNA:
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Answer:D 5' TCCAGTCCA 3
Explanation:because A turns to T and G turns to C for DNA but for RNA A turns to U and vise versa
Circle the letter of each molecule that makes up the sides of the DNA
ladder.
a. deoxyribose
b. glucose
c. phosphate
d.oxygen
Answer:
a. deoxyribose
Explanation:
Fill in the word that completes each sentence.
Food contains a sugar called
which is broken down in a process called cellular
This process uses
to break down food molecules and provide energy for cells.
Intro
Done
Answer:
The correct answer is - glucose, respiration and oxygen in order.
Explanation:
The food we eat contains various nutrients mainly, carbohydrates, protein, and fat. The carbohydrate that is we eat has glucose as the primary product and also the substrate in the process known as cellular respiration.
Cellular respiration is a process in which glucose molecules are broken down in order to provide energy in the form of ATP with the help of oxygen. It is called aerobic respiration as it required oxygen for the complete oxidation of the substrate.
Answer:
Glucose respiration oxygen
Explanation:
What does Oort define in our solar system
can some one label this ill mark branieliest
help! i really need help on a, b, c, d, e, f!
Answer:
a) 12 brown eyes
b) 12 brown hair
c) 3 Brown eyes blonde hair
d) 9 brown eyes brown hair
e) 3 blue eyes brown hair
f) 1 blue eyes blonde hair
What is one main feature of the free enterprise system?
h. There is very intle inequality between rich and poor
B. Consumers are free to make their own choices,
C. The government guarantees a job for every citizen
D. Businesses cannot take advantage of consumers.
Answer:
What is one main feature of the free enterprise system ?
Explanation:
The inequality is rich people get what every they want and poor people have to work 3 jobs to get payed.
Yes consumers are free to make their own choices because if they don't want it they don't have to get it .
The government guarantees a job for every citizen because if he don't we will not be speaking right now .
Businesses cannot take advantage of consumers because say like we at pizza hut an we finna leave because they going to slow an this worker tell us to come back an we say no they she say come back an we say no and leave they trying to take advantage of the consumers.
Answer:
,letter B im 100 percent sure
Explanation:
they are free to make their own choices and they can do whatever they like to
please mark me brainious
amaging a world without plants. will it be different world. think and write two lines on this
Life could not exist on Earth without trees because they produce most of the oxygen that humans and wildlife breathe. Trees absorb carbon dioxide from the atmosphere and release oxygen using the process of photosynthesis. There would also be no rain without trees since trees absorb water from the soil and release it through evapotranspiration. Water vapor released through evapotranspiration is the major mechanism by which air is remoistened. Forests act as giant air filters for the world. Trees purify the air by absorbing pollutants such as sulfur dioxide and nitrogen dioxide, reducing pollution. Trees also help prevent topsoil erosion because they break the force of wind and rain on soil, their roots bind the soil, and their decayed, falling leaves are absorbed by the earth and enrich the soil. Trees conserve rainwater and reduce water runoff and sediment deposit after storms.Additionally, trees provide a supply of lumber, seeds, and fruit. Further, dead trees that fall and get
Which Statement best describes Earth's oceans
Answer:
salty
Explanation:
Answer:
(I think you chose the wrong photo) but its Ocean covers most of the planet's surface and contain nearly all its water.
Explanation:
A series of two-point crosses, involving 7 genes (a-g), were carried out, and the following recombination frequencies were obtained. Place the seven genes into linkage groups (where a linkage group is any group of genes that are genetically linked to each other). Within each linkage group, determine the order of genes and the distances between them.
Genes % recombination Genes % recombination
a-b 50 c-d 50
a-c 50 c-e 26
a-d 12 c-f 50
a-e 50 c-g 50
a-f 50 d-e 50
a-g 4 d-f 50
b-c 10 d-g 8
b-d 50 e-f 50
b-e 18 e-g 50
b-f 50 f-g 50
b-g 50
Answer:
Explanation:
Genes with recombination frequencies(RF) of 50 assort independently and are not genetically links together but gene that have less than 50 RF are genetically linked.
The Linked genes included
a-d 12 c-e 26
a-g 4 d-g 8
b-c 10
b-e 18
Starting the order from the most tightly linked to the least
a-g 4, genetic distance is 4cM
d-g 8 genetic distance is 8cM
b-c 10 genetic distance is 10cM
a-d 12 genetic distance is 12cM
b-e 18 genetic distance is 18cM
c-e 26 genetic distance is 26cM
Which refers to the ends of a magnet where the forces are stongest?
a. attracting Forces
b. opposing forces
c. magnetic fields
d. magnetic poles
Answer:
d. magnetic poles
Explanation:
The correct answer is option (d) magnetic poles.
What are magnetic poles?
A magnetic pole is a point at end of a magnetic field where the magnetic force is concentrated and strongest.
Why other options are incorrect?
a. Attracting Forces : The force by which one object attracts another are attractive forces
Hence a. is incorrect.
b. Opposing forces : There is nothing termed as opposing forces in the types of forces so this option is incorrect.
c. Magnetic fields : The area around a magnet, magnetic object, or an electric charge in which magnetic force is exerted.
So , this option is also incorrect
Hence Option D is correct
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Although a small amount of ATP has been formed in the Krebs cycle, it is the _______________ molecules that represent the most energy for the cell.
Question 9 options:
NADH
FADH2
ATP
Both A and B
Ok here is the next one. The answer selected was just accidentally tapped so ignore it lol.
Answer:
hm, i believe it's d...but i'm not 100% sure lol
Explanation:
hope it helps!
Which of the following plant structures allows plants to take in the carbon used in photosynthesis?
Which of the following plant structures allows plants to take in the carbon used in photosynthesis?
roots
vascular bundles or veins
stomata
cuticle
chloroplasts
Answer:
Stomata
Explanation:
Photosynthesis is a unique phenomenon in certain organisms like plants. It is the process whereby they produce their food, in form of an organic compound called GLUCOSE. To synthesize this sugar, plants need a carbon source.
Plants utilize carbon dioxide (CO2), which is an inorganic carbon compound as CARBON SOURCE to synthesize glucose molecule in the process of photosynthesis. This carbon dioxide (carbon) is taken in by the plants via their STOMATA, which is a pore or opening present on their leaves.
The STOMATA opens and closes in order for gaseous exchange to occur i.e. take in CO2 (carbon dioxide), expel O2 (oxygen).
Answer:
stomata
Explanation:
edge for intro to Ag
please help!! what’s 11 and 14?
A new fossil called Darwinius was discovered in Germany. It lived around 47 mya. It had a small brain, short snout, and postorbital bar. Its diet probably included a lot of fruit and leaves. It did not have a dental comb. It had nails instead of claws and was probably an arboreal quadruped. Researchers disagree about whether the fossil is more similar to living haplorhines (the group that includes tarsiers, Old and New World monkeys, apes, hominins) or more similar to strepsirrhines (lemurs, lorises)
Required:
a. Describe two features that the fossil shares in common with living haplorhines.
b. Describe two features that the fossil shares in common with living strepsirrhines.
Explanations:
Darwinius is also known as Ida. some scientists have grouped it to be a member of the adapiforms. it's remains were unearthed in Germany. it is regarded as a female because it's skeleton lacks baculum.
Instead of claws darwinius have nails. they could be classified as transitional fossils due to its links with living strepsirrhines and also living haplorhines
similarities with haplorhines:
1. they share similar body structure and tail, also their nails are similar
2. there feeding is almost the same in terms of diet they are carnivores.
similarities with strepsirrhines:
1. they are both mammals
2. they have close body structure and also almost same tail
Large areas on the leaves of some plants lack chlorophyll and are therefore not green in color. How does this most likely affect photosynthesis? Not enough sunlight is captured in these areas of the leaves. Carbon dioxide cannot enter these areas of the leaves. Too much glucose builds up in these areas of the leaves. Oxygen cannot be released in these areas of the leaves.
(Not enough sunlight is captured in these areas of the leaves)
The plants are of green color due to the pigment chlorophyll. the chlorophyll plays a crucial role in photosynthesis, the process of preparing food.
The correct answer is:
Option A. Not enough sunlight is captured in these areas of the leaves.
The functioning of chlorophyll can be explained as:
Chlorophyll is the green color pigment present in the chloroplast of the leaves. The pigment is involved in the capturing of sunlight and imparting green colors to the plants. The plants lacking chlorophyll will not be able to perform photosynthesis. The process of preparing food in the presence of sunlight, chlorophyll, and carbon dioxide. The products of photosynthesis are oxygen and sugar molecules.
Thus, the correct answer is Option A.
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When heat leaves your body, how far could it travel?PLEASE HURRY