which of the following is not a feature of natural selection?

Answers

Answer 1

Answer:

naturally living organisms


Related Questions

How does renal medulla differ from renal cortex?​

Answers

Answer:

The main difference between renal cortex and renal medulla is that renal cortex is the outer region of the kidney which contains blood vessels connected to the nephrons whereas renal medulla is the inner region of the kidney which contains 8-12 renal pyramids

¿Es normal el efecto invernadero?

Answers

Answer:

i think it is

Explanation:

its because greenhouse effect is a natural process which warms the Earth's surface. When the Sun's energy reaches the Earth's atmosphere, some of it is reflected back to space and the rest is absorbed and re-radiated by greenhouse gases.

name the various classes of algae given by F E Fritsch​

Answers

Answer:

1. Chlorophyceae

2. Xanthophyceae

3. Chrysophyceae

4. Bacillariophyceae

5. Cryptophyceae

6. Dinophyceae

7. Chloromonadineae

8. Euglenineae

9. Phaeophyceae

10. Rhodophyceae

11. Cyanophyceae or Myxophyceae.

Explanation:

Algae are a group of living organisms classified under the kingdom Protista. They exhibit unique characteristics such as mode of reproduction, type of pigment, food reserve material, locomotive ability etc.

A british scientist (botanist) named Felix Eugen Fritsch in 1935 classified algae into 11 different classes based on some of these characteristics. The classes of algae are as follows:

1. Chlorophyceae (green algae)

2. Xanthophyceae (yellow green algae)

3. Chrysophyceae

4. Bacillariophyceae (diatoms)

5. Cryptophyceae

6. Dinophyceae

7. Chloromonadineae

8. Euglenineae

9. Phaeophyceae (brown algae)

10. Rhodophyceae (red algae)

11. Cyanophyceae/Myxophyceae (blue green algae)

Select the correct locations on the image.
in which four locations do hurricanes occur?


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Answer:

Explanation:

Hope that helps                                      

Need help please …..

Answers

The answer is either a or c
D
Is the correct answer

Speech is a dynamic process requiring precisely coordinated articulatory movements for the sequencing of sounds to ultimately produce words. What is common among children with cerebral palsy

Answers

Answer:

Speech impairment

Explanation:

Cerebral palsy children suffers speech impairment and it is the inability to produce speech sounds and this may range from mild to severe. This can include an articulation disorder, fluency disorder and voice disorder.

fluency disorder is characterized by inability to pronounce a sound or repitition of a particular sound.

voice disorder is characterized by the production of abnormal pitch or volume.

Articulation disorder in the inability to articulate words, it could include stammering.

Which of the following does NOT cause weathering?
A. Plants
B. Water
C. Helium
D. Temperature change

Answers

Answer:C

Explanation:

Which statement accurately describes the relationship between weight and
mass?

Answers

Answer: An object with twice the mass of another object will weigh twice as much is the statement accurately describes the relationship between mass and weight.

Hope it helps you if not sorry

Explanation: A.Mass is an objects weight multiplied by the amount of gravitational force acting upon the object

what is cell wall ?

please help.​

Answers

Answer:

A cell wall is a structural layer found just outside the cell membrane that surrounds various types of cells. It may be robust, flexible, and even stiff at times. It functions as a filtration mechanism as well as providing structural support and protection to the cell.

refer the picture for question please

Answers

Answer: P= Nucleus Q= Mitochondria R= Golgi Bodies hope its help you keep smiling be happy stay safe

Eukaryotic chromosomes contain two general domains that relate to the degree of chromatin condensation. These two regions are _

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Answer:

This question lacks options, options are: A) Heterochromatin and euchromatin

B) Uniform in the genetic information they contain

C) Separated by large sketches of repetitive DNA

D) Each void of typical protein-coding sequences of DNA

E) Void of introns.  

The correct answer is A.

Explanation:

The chromatin or substance that makes up the nuclei of cells and that results from the interaction of DNA with histonic and non-histonic proteins and RNA; it can present different degrees of packing or contraction. When chromosomes are stained with chemicals that bind to DNA, densely stained regions and less densely stained regions appear. Heterochromatin are segments of the chromosome that stain strongly and remain visible, practically, during the entire cell cycle. There are few genes in these regions and therefore low transcriptional activity. They are supercondensed regions. Euchromatin are segments of the chromosome that are not visible during telophase and interphase, only in metaphase. It corresponds to regions that are less compact and in which there is a higher gene density.

Why do you think it is functionally important that the bones of the os coxae fuse together rather than remain independent bones

Answers

Answer:

Provides more strength.

Explanation:

It is functionally important that the bones of the os coxae fuse together rather than remain independent bones because the fusion of bones of the os coxae increases their strength and they can perform their function very well. If the fusion of bones of the os coxae did not occur and they remain independently so they can't bear the load of the body and so the function is also adversely affected.

if masquiteos have babys in water then can the have babbies in fog

Answers

Maybe, mosquitoes lay eggs in still water like a in pail or bucket

Mosquitoes can lay eggs as long as they’re near a source of water or in water because the babies cannot survive without water

In addition to highly repeated DNA sequences and unique (single-copy) DNA sequences, a third class of DNA exists. What is it called, and what types of elements are involved in it

Answers

Answer:

long-read sequencing

Explanation:

a method of dna sequencing under active development

The volume of a right circular cylinder can be approximated as follows: Volume = ?r2h; where r is the radius of the cylinder and h is the height of the cylinder; ? is a constant that is roughly equal to 3. Using the simple approximation above, calculate the volume of a right circular cylinder with a radius of 2 meters and a height of 9 meters

Answers

Answer:

42m3

Explanation:

Please help
Please answer correctly​

Answers

Answer:

1 a

2 b

3 c

Explanation:

elephantiasis is transmitted by :
a. fruit fly b. may fly
c. culex d. Anopheles

Answers

Answer:

The correct answer is - d. Anopheles.

Explanation:

Culex, a species off mosquitoes known as the vector for many viral and parasitic diseases such as elephantiasis, that spread the disease and to one person to other.

In America culex is the main vector for Lymphatic filariasis or elephantiasis that is caused by a parasite. However in Africa Anopheles is the main mosquitoes causes Lymphatic filariasis or elephantiasis in people of the area.

Which method of waste treatment is LEAST harmful to the environment?​

Answers

Answer:

c

Explanation:

because burning burying and landfill are all harmful

20 This diagram shows an enzyme-substrate complex.
Structure X
Structure Z
Structure Y
m
Step 1
Step 2
Step 3
Which is represented by Structure X?

Answers

Answer:

structure X is the substrate so the answer is A

Explanation:

As it is trying to fit in the enzymes active site

According to the enzyme-substrate complex, the structure X is represented by a substrate. Thus, the correct option for this question is A.

What do you mean by Enzymes?

Enzymes may be defined as biocatalysts that significantly enhance the rate of a chemical reaction without being altered in the overall process. It may be thought that all cellular reactions or processes are mediated by enzymes. Enzymes have a series of characteristics that depends on their activity.

According to the diagram given in the question, the structure X is the substrate, the structure Y is an enzyme, and the structure Z is the product. While stage 2 represents the enzyme-substrate complex.

Therefore, according to the enzyme-substrate complex, the structure X is represented by a substrate. Thus, the correct option for this question is A.

To learn more about the Enzyme-substrate complex, refer to the link:

https://brainly.com/question/15027095

#SPJ2

What conclusion can be drawn concerning an inhibitor if the Km is the same in the presence and absence of the inhibitor

Answers

Answer: The inhibitor has a structure that is not similar to the substrate.

Explanation:

Enzymes are molecules that act as catalysts of chemical reactions, accelerating the reaction rate without affecting the equilibrium of the reaction, as long as it is energetically possible. They act on molecules called substrates, which are converted into different molecules called products.  

Enzymes are very selective with their substrates and are also susceptible to inhibitors which are molecules that regulate enzyme activity, inhibiting its activity. Inhibitors can be classified as reversible and irreversible. Irreversible inhibitors bind covalently to the enzyme with no possibility of reversing the modification they make, while reversible inhibitors bind reversibly to the enzyme and can reverse the modification.

A reaction occurring under the control of an enzyme reaches equilibrium much faster than the corresponding uncatalyzed reaction. The reaction, i.e. the production of products, can reach a saturation point if the substrate concentration increases too much, decreasing the concentration of free enzyme, which becomes the form with bound substrate. At the maximum rate (Vmax) of the enzyme, all active sites of the enzyme have substrate bound, and the amount of complexes is equal to the total amount of enzyme. The amount of substrate required to obtain a given reaction rate is also important and this parameter is given by the Michaelis-Menten constant (Km), which is the concentration of substrate required for an enzyme to reach half its maximum velocity. Each enzyme has a characteristic Km value for a given substrate, which can tell us how close the binding between the substrate and the enzyme is. Then, inhibitors bind to the substrate and increase the Km value as it interferes with the binding between substrate and enzyme. In this case, the Km value of the enzyme is the same in the presence and absence of the inhibitor, this means that there is no change, because the inhibitor has a different structure to the substrate, it does not bind and does not change the Km value.

Glucose molecules provide energy to power the swimming motion of sperm. In this example, the sperm are changingA) chemical energy into kinetic energy.B) chemical energy into potential energy.C) kinetic energy into potential energy.D) kinetic energy into chemical energy.E) kinetic energy into thermal energy.

Answers

Answer:

A

Explanation:

The correct answer would be that the sperms are changing chemical energy to kinetic energy.

In order to power the movement of the sperm cells, chemicals in the form of glucose molecules are hydrolyzed and the resulting energy from the reaction is used to power the movement of the sperm cells.  Moving sperm cells possess kinetic energy. Thus, we can say that the chemical energy in the glucose molecules is converted to kinetic energy in the sperm cells.

The correct option is A.

The nephron loops of the juxtamedullary nephrons are surrounded by a looping, ladder-like blood vessel called the

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[tex] {\bold{\red{\huge{\mathbb{QUESTION}}}}} [/tex]

The nephron loops of the juxtamedullary nephrons are surrounded by a looping, ladder-like blood vessel called the

[tex] \huge\mathbb{\red A \pink{N}\purple{S} \blue{W} \orange{ER}}[/tex]

The nephron loops of the juxtamedullary nephrons are surrounded by a looping, ladder-like blood vessel called the Peritubular Capillary network

This network is formed by the Efferent artiole to absorb the non waste martial which is flown out in the ultrafiltration of Glomerular capsule .

Severe combined immunodeficiency (SCID): Group of answer choices is a result of the absence of macrophages or B cells. affects only part of the adaptive immune response. can be caused by failure of TAP transporters. is caused by the lack of T cell and B cell maturation/differentiation.

Answers

Answer:

is a result of the absence of macrophages or B cells.

Explanation:

Severe combined immunodeficiency (SCID) results due to the absence of macrophages or B cells that is responsible for the immunity of  our body. Severe combined immunodeficiency (SCID) is an inherited immunodeficiency disease (PIDD) that presents in infancy results  in a weak immune system that is unable to fight against even mild infections so due the absence of macrophages or B cells, the body is vulnerable to diseases.

B.Fill in the blanka with the correct word given inside the box.


clay. water. sticky. loam
oxygen. sand. plants. particles
7.________ is made up of particles that are tightly packed together.
Very fine 8._________ of rocks can hold much water and become 9._________
when wet.While 10.________ is a mixture of sand and clay,this contains the right mixture of particles of silt,sand and clay.​

Answers

Answer:

7=clay

8=loam

9=sticky

10=loam

One student made the incomplete diagram shown below to represent the relationship between magma igneous rocks and metamorphic rocks.


Which of these is the correct next step to complete the diagram?

A. Put an arrow labeled cools and crystallizes pointing from igneous rocks to metamorphic rocks

B. Put an arrow labeled cools and crystallizes pointing for metamorphic rocks to igneous rocks

C. Put an arrow labeled heat and pressure points in from igneous rocks to metamorphic rocks

D. Put an arrow labeled heat and pressure pointing from metamorphic rocks to igneous rocks

Answers

Answer:

C. Put an arrow labeled heat and pressure pointing from igneous rocks to metamorphic rocks

Explanation:

Metamorphic rocks are changed rocks that are formed from pre-existing rocks that were once sedimentary or igneous rocks. Heat and pressure majorly act on igneous rock, which over time change these rocks into a different rock entirely, known as metamorphic rocks.

Therefore, the next step to complete the diagram will be:

"C. Put an arrow labeled heat and pressure pointing from igneous rocks to metamorphic rocks."

a. A breakdown of U.S. household garbage reveals the largest amount percentage-wise is paper and paperboard. b. In U.S. households most of the water usage is in the bathroom. c. The founder of the modern environmental movement and author of Silent Spring is Rachel Carson d. Deciduous trees such as most pines do not lose their leaves/foliage in winter.

Answers

Answer:

c. The founder of the modern environmental movement and author of Silent Spring is Rachel Carson

d. Deciduous trees such as most pines do not lose their leaves/foliage in winter.

Explanation:

Yes, Rachel Carson is the founder of the modern environmental movement as well as author of Silent Spring. She was an American marine biologist, author, and conservationist which started the modern environmental movement in order to save the environment form pollution. Yes, the Deciduous trees such as most pines do not lose their leaves/foliage in winter, they only lose those leaves that are too old. They are considered as evergreen plants.

The image shows a rain forest ecosystem. The energy from plants, or producers, acts as the starting point of energy in the ecosystem. This energy is transferred to other organisms in the food web. In which two ways is the total amount of energy conserved in the ecosystem?



Some energy is transferred to the organisms, and the remaining energy is released into the ecosystem as thermal energy.
Bacteria eat the dead bodies of organisms to release the organisms’ stored energy into the atmosphere.
Some energy is transferred to the smaller organisms, and the rest is stored in the bodies of larger animals.
Some energy is transferred to the organisms, and the rest is released by plants in the form of carbon dioxide.
Bacteria eat the dead bodies of organisms, obtain all the energy, and store it in their bodies.

Answers

Answer:

some energy is transferred to the smaller organisms and the rest is stored in the bodies of larger animals

All of the following are examples of geological features EXCEPT
ridges
valleys
bridges
waterfalls

Answers

The correct answer is bridges.

Answer:   The correct answer is bridges

Explanation:  Confirmed correct

System
Identify the function of the labeled structures.
A:
B:
B В
C:
D:
A

Answers

Answer:

A: D/

B: B/

C: C/

D: A/

Explanation:

i hope this is helpful^^

Answer:

The first is D

The second is B

The third is C

The last is A

Explanation:

I took the assignment. In fact I'm taking it right now at the moment

After ATP donates a phosphate group to a coupled reaction, then it becomes ADP. The ADP Group of answer choices can be recharged in an equilibrium reaction to form ATP. can be recharged in an oxidation reaction to form ATP. can be recharged with the release of energy to form ATP. is a waste product that will be broken down. can be recharged with the uptake of energy to form ATP.

Answers

Answer:

can be recharged with the uptake of energy to form ATP

Explanation:

The correct answer would be that the ADP can be recharged with the uptake of energy to form ATP.

ADP is converted to ATP within a cell when free energy is available. The free energy is stored by coupling a phosphate group to ADP to form ATP, such that:

ADP + P (inorganic) + Free Energy ------> ATP

Hence, ADP can only be recharged with the uptake of energy to form ATP, a kind of reaction generally referred to as endergonic reaction.

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Why does time have a direction? Please give your ideas I want to see them. Brainliest f0r most effort.:) 2. As NH4OH is added to an HCl solution, the pH of the solutionA) increases as the OH- concentration decreasesB ) increases as the OH- concentration increasesC ) decreases as the OH- concentration decreasesD ) decreases as the OH- ion concentration increases Help me with this problem Where would (aq) (s) go in Cr(NO3)3+K3PO4 PLEASE HELP!Question: Give an example of a patent in business. Calculate 20% of 15,998 Find the measure of the missing angle using the triangle angle sum theorm. help me please:((((((( Name a state that starts with K From USA Find the volume of this cylinder. Use 3 for .V = 7r2h14 cm2V = T[?]?28 cmHint: Plug in the value of theradius for r. The radius is showndirectly in the diagram. What do these words from the text mean? Match the words and its definitionhelpppp! Two metal spheres are made of the same material and have the same diameter, but one is solid and the other is hollow. If their temperature is increased by the same amount:_______.A) the solid sphere becomes heavier and the hollow one lighter. B) the solid sphere becomes bigger than the hollow one. C) the hollow sphere becomes bigger than the solid one. D) the two spheres remain of equal size. E) the solid sphere becomes lighter and the hollow one heavier. There is an increase in the demand for aspirin at the same time as workers in the aspirin industry receive a substantial pay increase. What will most likely happen? 7. Explain the difference between an ionic compound and a molecule, on an atomiclevel (that is, describe what is happening with the atoms that makes these compoundsdifferent) A ball is launched from the ground with a horizontal speed of 30 m/s and a vertical speed of 30 m/s. How long will it take to get to the top of its trajectory? A. 3 seconds B. 4 seconds C. 2 seconds D. 6 seconds Write a letter toyour madam telling her about your needs Review the following statements and determine which is (are) correct regarding an adjusted trial balance and how it is used In preparing financial statements. (Check all that apply.) Multiple select question. The adjusted trial balance includes all accounts and balances appearing in financial statements. The ending Retained Earnings account balance on the balance sheet is taken directly from the adjusted trial balance. Financial statements are easier to prepare using the adjusted trial balance than the general ledger. The balance sheet is the first financial statement prepared. The ending Retained Earnings account balance on the balance sheet is transferred from the statement of retained earnings. The income statement is the first financial statement prepared after preparing the adjusted trial balance. g A. (Points: 7) Compute (without using a calculator) 241^257 mod 12 B. (Points: 3) Compute Z*20 C. (Points: 6) Find the multiplicative inverse of 7 in Z19 3x-4y=-24Identify the x- and y-intercept of the graph of each question What are two ways to help organize sentences?