what gives sperms motility​

Answers

Answer 1

Answer:

The tail of the sperm, the flagellum

Explanation:

We find cilia in the human body. They coat the epithelial cells of the upper respiratory tract and play a role in keeping dust particles, smog, and potentially harmful microorganisms from entering the lungs.

Their movements enable the movement of mucus or other substances across the surface of various epithelial cells. The cilia also cover parts of the male and female reproductive tract.  

Flagella are found in sperm, whose tail represents the flagellum in its structure. The body wall of the sponge, among others, contains cells with whips that create and maintain the flow of water through the body.


Related Questions

How do nitrate levels affect the health of a water system?

Answers

It doesn’t have a effect on aquatic insects or fish. But it can create conditions that make aquatic insects/fish difficult for them to survive.

Why are subduction zones not commonly found at convergent continental-continental boundaries?

Answers

Answer:

the subduction zone is commonly found in convergent continental-continental boundaries since it is where two continental crusts meet, and the force forces one crust to subduct under another one.

Explanation:

lol pls help i really need help

Answers

c would be missing. because when secondary succession occurs, it was previously occupied and re-colonized. im almost positive because i kind of remember doing this a few weeks ago. hope this helps a bit!



When do mountains get built?

Answers

Answer:

Movements of tectonic plates create volcanoes along the plate boundaries, which erupt and form mountains. A volcanic arc system is a series of volcanoes that form near a subduction zone where the crust of a sinking oceanic plate melts and drags water down with the subducting crust.

Explanation:

I hope this helps

Explanation:

movement of tectonic plates create volcanoes along the plate boundaries which erupt and form mountains

a volcanic Arc system in a series of volcanoes that form near a subduction zone where the crust of a sinking oceanic plate melts and drags water down with the subducting crust

hope this helps

Which of the following statements are characteristics of a compound?
1. Compounds are made from two or more elements,
II. A compound is a pure substance.
III. Compounds are represented by a chemical symbol.
IV. Compounds are represented by a chemical formula.

Answers

1 is the answer to your question.

The amusement park will be located in a hot climate. The engineers want to select a material for the giant slide that will prevent the surface from getting too hot. Based on the specific heat values, what material would be the best choice? A.Plastic, because it takes more energy to raise its temperature B.Iron, because it takes more energy to raise its temperature C.Plastic, because it takes less energy to raise its temperature D.Iron, because it less energy to raise its temperature

Answers

Answer:

A

Explanation:

The correct answer would be plastic because it takes more energy to raise its temperature.

The specific heat capacity of a substance is the amount of heat required to raise the temperature of the substance by one degree. The more the specific heat capacity of a substance, the more the heat required to raise its temperature.

The specific heat capacity of plastics is generally more than that of metals. Hence, metals will get heated faster than plastics under the same condition. More energy would be needed to raise the temperature of plastics when compared to metals.

the correct option is A.

Heyy Guyss Helpt Ill Markt You Brainliestt

Answers

Answer:

1. Photosynthesis transforms light energy into chemical energy

2. chlorophyll captures light energy

3. photosynthesis creates energy from carbon dioxide and water.

Explanation:

Therefore, first 3 statements are true.

I hope it helps.

A large canyon, with a large river running through the bottom, was MOST LIKELY formed by​

Answers

Answer:

the movements of rivers, tectonic activity, and erosion.

what is meant by ecosystem diversity?

Answers

Answer:

Ecosystem diversity deals with the verity in ecosystems within a location and its overall impact on human existence and the environment.

Explanation:

An example of ecological diversity on a global scale would be in different verity ecosystems, such as deserts, forests, grasslands, wetlands and oceans. Hope this helped and have an awesome day! :)

How Fast can you answer how fast can i give you brainliest????? HELP...

Answers

Answer:

Explanation:

I think it's b or d may a

Answer:

The answer is C: Pond

Explanation:

its definition is the closest to the question: a small body of still water formed naturally or by hollowing or embanking.

I deeply apologize if this is incorrect.

I hope this helped and if it did I would appreciate it if you marked em Brainliest. Thank you and have a nice day!

PLEASE HELP EHHHHHH );

Answers

Answer:

1

Explanation:

Answer:

The answers are 1 and 3.

Explanation:

Viruses are tiny particles, smaller than prokaryotic cells. Viruses are not cells and cannot replicate without help, but they have nucleic acids and can evolve.

Hope that helps and please give me brianliest!!

match terms w definitions ​

Answers

Answer:

Bipolar or Polarity : B

Surface Tension: F

Capillary: C

Ion: A

Dissolving: D

Specific Heat: E

Answer:

1. Bipolar or Polarity  b

2. Surface tension     f

3. Capillary action     c

4. Ion                          a

5. Dissolving             d

6. Specific heat         e    

what are the functions of pseudopodia in amoeba?

Answers

Answer:

Pseudopods are used for motility and ingestion. They are often found in amoebas.

Explanation:

what are the 3 negative effects of global warming/climate change ?

Answers

Answer: Effects on weather. Global warming leads to an increase in extreme weather events such as heat waves, droughts, cyclones, blizzards and rainstorms. Such events will continue to occur more often and with greater intensity.

Explanation: nothing to see at this point ;)

Answer:

The ice is melting specially at the earth's pole. This includes moungain glaciers . Much of this melting ice contributes to increse sea-levels.Hlonal sea levels are rasing 0.13 inches a year.Rasing temperature is also an effect oc vloba warming . This causes to the wildlife.

A rich variety of genetic material in an ecosystem will:
1. reduce the biodiversity of the ecosystem

2. decrease the carrying capacity of the ecosystem

3. reduce the likelihood of future medical discoveries

4. increase the chances that some organisms will survive change​

Answers

The answer will be 4

A rich variety of genetic material in an ecosystem will increase the chances that some organisms will survive change​.

What is an ecosystem?

An ecosystem contains all the organisms and the biological environment (which contain abiotic and biotic factors ) with which they show interaction.

These biotic and abiotic components are related concurrently through nutrient and water cycles and energy discharges.

Energy joins the procedure through photosynthesis and is interspersed into plant tissue.

Thus, option 4 increases the chances that some organisms will survive change​ is correct.

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What is the large caldera that many scientists in
the United States keep an eye on just in case (it
hasn't erupted in 65,000 years)?
A. Mount McKinley
B. Death Valley
C. Yosemite National Park
D. Yellowstone National Park

Answers

Answer:

D.

Explanation:

Yellowstone National Park

Answer:

B

Explanation:

how does a zygote from​

Answers

Answer:

Formed when a male gamete (sperm) and a female gamete (egg) combine.

Explanation:

A zygote is formed when these two gametes come together. This initial phase is carried out in the Zygotic stage.

Hope this is correct. Have a wonderful day.

What features of cells is best demonstration in the image

Answers

Answer:

I think its D

Explanation:

Something, such as sunlight, causes a mutation in the genes of a cell. When that cell’s chromosomes copy themselves, the new chromosomes both have mutation. When the cells divide, both new cells carry the same mutation. Do you think this type of mutation can be passed to the offspring? Yes or No. Explain your answer

Answers

Answer:

yea

Explanation:

Answer:

Yes!

Explanation:

I believe that it can because it is in the Genes to be passed down to the offspring.

Summer or winter?
Why?
( I personally perfer winter because I just like the cold and clothes)​

Answers

Answer:

winter

Explanation:

because i like to sit by a warm fire and watch cheesy christmas movies. plus the weather is better

45,46,47
Please help

Answers

Answer:

66 55 and 34 welcome

Explanation:

good

GUYSSS HELPP, ILL MARK YOU BRAINLYYY

Answers

Explanation:

1 light energy

2 chemical energy

3 chemical energy

4 light energy

Answer:

1, Light energy

2, Chemical energy

3, Chemical energy

4, Light energy

Morphological distinction is one of the steps necessary for speciation to occur.
What are the other two?

Answers

Answer:

Genetic Separation / Geographic isolation

Explanation:

Morphological distinction (or phenotypic differentiation) can be defined as the diversification of a set of observable physical characteristics in a population, capable of differentiating certain species.

The genetic separation occurs when the division of a group of genes into two or more pools of genes separated over time and depending on several other situational factors.

Geographic isolation occurs due to the physical separation of subpopulations of a given species. The barriers that isolate these subpopulations can be, for example, a river that cuts through a plain, a valley that divides plateaus or a portion of the sea that separates islands and continents.

Explain how mitosis
maintains the chromosome number of the
original cells when forming new cells.

Answers

duplicating the dna

Mitosis is a type of cell division that helps to maintain the chromosome number of the original cells by dividing cells that previously duplicate their genetic material (DNA) during the interphase (S phase).

The cell cycle is divided into the interphase and the mitotic (M) phase.

The interphase of the cell cycle is in turn divided into three different phases: Growth 1 (G1) phase, Synthesis (S) phase and Growth 2 (G2) phase.

During the S phase, the chromosomes (i.e., the genetic material) of a cell are duplicated.

Mitosis is a type of cell division that follows the interphase of the cell cycle by which a somatic (body) cell divides to produce two genetically identical daughter cells.

In conclusion, Mitosis is a type of cell division that helps to maintain the chromosome number of the original cells by dividing cells that previously duplicate their genetic material (DNA) during the interphase (S phase).

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Which cells in your body undergo cellular respiration?

Select one:
a. your brain cells
b. your skin cells
c. your heart cells
d. every cell in your body

Answers

D. every cell in your body

Answer: D, every cell in your body

Explanation:

1) during photosynthesis..... from the carbon dioxide is made of glucose
2) during...... glucose is broken down for it's energy and carbon dioxide released as ...
3) .... is the process that bacteria use to cause the decay of death organisms ​

Answers

Answer:Photosynthesis is the process by which plants, some bacteria and some protistans use the energy from sunlight to produce glucose from carbon dioxide and water. This glucose can be converted into pyruvate which releases adenosine triphosphate (ATP) by cellular respiration. Oxygen is also formed.

Explanation:

The different forms of a characteristic

Answers

Hybrid — offspring formed by parents having different forms of a specific trait. Law of independent assortment — Mendelian principal stating that genes for different traits are inherited independently of each other. ... Phenotype — outward appearance of an organism, regardless of its genes.

Neurons are cells of the nervous system. As part of its normal function, a
neuron pumps sodium ions (Na + ) out of the cell and potassium ions (K + ) into the cell. Which statement describes the role of energy in this process?

a. The process releases energy that is used to make ATP.

b. The process releases energy in the form of heat.

c. The process requires energy that is provided by the sodium and potassium ions.

d. The process requires energy that is provided by ATP.

Thank you! :)

Answers

Answer:

D. The process requires energy that is provided by ATP.

Explanation:

Neurons use a pump called the sodium-potassium pump, which normally pumps sodium ions out of the cell and pumps potassium ions into the cell.

This pump goes against the concentration gradient to create the resting membrane potential.

Since the pump goes against the concentration gradient, it requires energy, because it is not passive diffusion.

So, D is the correct answer, as the process requires ATP energy.

Neurons are cells of the nervous system. As part of its normal function, a

neuron pumps sodium ions (Na + ) out of the cell and potassium ions (K + ) into the cell. The process requires energy that is provided by ATP. The correct answer is option D.

What is the role of sodium potassium pump ?

The role of the sodium potassium pump is the muscle contraction and the nerve impulse. In exchange of 2 potassium ions is the displacement of 3 sodium ion and this exchange is against the concentration gradient thus requires the molecule of ATP for the transfer of the ions.

The Na+/K+-pump an active transporter  uses ATP hydrolysis  in  energy source to move ions across the neuronal membrane down their concentration gradients and  assigned specific functions associated with the generation of the action potential as well as with the maintenance of other active transport.

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Why are invasive species dangerous to the environment?
A)They pollute the environment.
B)They are always predators.
C)They threaten biodiversity.
D)They bring abiotic factors.

Answers

Answer:

C

Explanation:

They threaten the other animals. They can take their food, homes, and they don't have natural predators.

Invasive species are dangerous to the environment as they threaten the biodiversity. Thus, the correct option is C.

Invasive species are those imported species that are able to thrive rapidly in another foreign area by adapting and reproducing quickly.

Invasive species of plants and animals lead to an increase in the competition for survival, which results in decrease in the population of the native species.

The invasive species also affect the food web that is existing in the particular ecosystem, because of which other all organisms which are part of the food web are affected. They outcompete the native species for food,

Thus, biodiversity is threatened due to the invasive species.

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list out any four waste materials secreted by human body and describe any two of them?​

Answers

Answer:

These chemical reactions produce waste products such as carbon dioxide, water, salts, urea and uric acid. Accumulation of these wastes beyond a level inside the body is harmful to the body. The excretory organs remove these wastes. This process of removal of metabolic waste from the body is known as excretion.

Answer:

Thechemical reactions produce waste products such as carbon dioxide, water, salts, urea and uric acid. Accumulation of these wastes beyond a level inside the body is harmful to the body. The excretory organs remove these wastes. This process of removal of metabolic waste from the body is known as excretion.

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