propulsion of a sperm cells occurs due to ___________and It gets energy from____________/_

Answers

Answer 1

Answer:

propulsion of a sperm cells occurs due to the sperm's tail containing a large number of proton channels called Hv1 and It gets energy from the seminal plasma.

Explanation:


Related Questions

Which of the following best describe a chemical property of a substance. *

A. the amount of material used
B. the ability of a substance to undergo chemical change
C. the behavior of material when heated
D. the color of the product

Answers

Answer:

Explanation:

option C

Chemical properties, such as combustibility, are generally observed as the identity of a substance changes and one or more new substances form.

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The Correct choice is ~ B

The ability of a substance to undergo chemical change

How many mRNA codons are needed to make a protein that contains 5 amino acids?
a. 3
b. 5
c. 10
d. 12

Answers

Answer:

A.3

Explanation:

I got no explanation for this only thing i know is that 3 codes are needed as three basic is one codons maybe

Mastication is performed by which of the following accessory digestive organs?

Answers

Answer:

d. All of the above

Explanation: is correct

the three steps that are required for dna replication are

Answers

Replication occurs in three major steps: the opening of the double helix and separation of the DNA strands, the priming of the template strand, and the assembly of the new DNA segment.

The three steps that are required for DNA  replication are initiation, elongation and termination.

What is DNA replication ?

The process in which DNA of a cell under go duplication to produce two copies during S-phase of cell cycle called as DNA replication.

It involves 3 steps such as initiation step where the origin of replication of DNA molecule undergo unwinding into two DNA strands.

An incomplete unzipping by forming replication fork is created is catalyzed by the helicase enzyme.

Secondly in elongation step the DNA polymerase enzymes make the complementary sequence against each parent template strand.  

It is an unidirectional, one strand which is synthesized in a continuous manner called leading strand, the strand which is synthesized in a discontinuous manner called lagging strand with Okazaki fragments.

Termination occurs in the last step, when the parent molecule has been completely replicated.

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classify the materials that undergo decay. write decay and non-decay in the space provided for
1. fish
2.stick

Answers

classify the materials that undergo decay. write decay and non-decay in the space provided for 2) stick

What is the correct abbreviation for pan troglodytes (chimpanzee)?.

Answers

Answer:

The correct abbreviation for Pan Troglodytes, which is the scientific name for chimpanzees, is PTR.

Explanation:

Hope this helps you :)

Describe prokaryotic cells. Include general characteristics and indicate the one feature that eukaryotic cells have that prokaryotic cells do not.















Please no links!

Answers

Answer:

prokaryotic cells — e.g. Bacteria

eukaryotic cells — e.g. Animal/Plant cells

Prokaryotic Cells are unicellular organisms that don’t have a nucleus, but have their DNA unbound (or uncompressed) within the cells cytoplasm, they also have circular structures (or rings) called plasmids which carry additional Genetic Information.

Specific Example:  A bacterium is an example of a prokaryotic cell, and it has a cell wall, cell membrane, and even a capsule.

One feature that Eukaryotic cells have which Prokaryotic cells don’t is a Vacuole (this is just one feature).

Prokaryotic cells are much smaller than eukaryotic cells, have no nucleus, and don’t have organelles. Many also have a capsule or slime layer made of polysaccharide (ignore this word if you havent learn about it yet).

Genes which are expressed all the time.

Answers

Genes that are expressed all the time are dominant ones. They can also be seen all the time if it is a genotype(ie. eye color, hair color, etc.)

How do animals cause erosion.

Answers

Answer:

Some animals weather rocks by scraping them as they feed. Other animals change Earth's surface by burrowing into it and moving material. Too many animals in one place can destroy most of the plants, leading to faster erosion.

If too many animals graze the same land area, the animals’ hooves pull plants out by their roots. A land is overgrazed if too many animals are living there. Grazing animals can cause erosion if they are allowed to overgraze and remove too much or all of the vegetation in a pasture.

Explanation:

Hope this helped :)

NO LINKS. PLZZ HELP WILL MARK BRAINLIEST AND 55 POINTS!

Which nucleic acid moves the code for protein synthesis from the nucleus to the ribosomes?

A. dRNA

B. tRNA

C. rRNA

D. mRNA

Answers

Answer:

mRNA

Explanation:

enjoy mate

Answer:mRNA

Explanation: Just had this unit.

cuales son las adaptaciones para el ecosistema acuatico

Answers

Answer:

diseño aerodinámico, aletas

Crossing over is a process that occurs during formation of gametes. How does crossing over lead to genetic variation in offspring?

Answers

Crossing-over is the exchange of genetic material between homologous chromosomes. It results in new combinations of genes on each chromosome. When cells divide during meiosis, homologous chromosomes are randomly distributed to daughter cells, and different chromosomes segregate independently of each other.

https://bio.libretexts.org

Sofia’s favorite meal is breakfast, and she is careful to include healthy components along with her favorite foods. She knows breakfast helps to keep her energy levels up until lunch. Sophia's digestive system helps her body get energy from food. How do the nutrients from food get to the body's cells? A. The nutrients are distributed by the digestive system to the parts of the body that need them. B. The nutrients are picked up and transported around the body by blood from the circulatory system. C. The nutrients are absorbed directly into the cells that need them. D. The circulatory system brings nutrients to the digestive system to be processed for the cells.

Answers

Answer: c

Explanation:because it needs cells I think…

The nutrients from the food get to the cells of the body by the action of two organ systems i.e. the digestive system and the circulatory system.

What is the role of the digestive system?

The digestive system may be defined as a type of organ system that significantly deals with the breakdown of food substances into simpler components that can easily be consumed by the body.

According to the context of the question, the food that we eat reaches the stomach through the esophagus where multiple enzymes perform their roles. After the stomach, the food may be passed to the small intestine which is absorbed here and then the nutrients assimilate in the blood.

Through the blood, the nutrient can be transported around the body by blood from the circulatory system. Thus, the correct option for this question is B.

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Michelle has been given a microscope slide that contains a eukaryotic cell and a prokaryotic cell. What should she look for to distinguish the eukaryotic cell from the prokaryotic cell?
A.
cytoplasm
B.
nucleus
C.
ribosomes
D.
cell membrane

Answers

Answer: B

Explanation:

(b) nucleus
quizlet babe <3

in DNA, ________ always forms hydrogen bonds with Guanine (G)

Answers

Answer:

in DNA, Cytosine always forms hydrogen bonds with guanine

hope help you

Answer:

cytosine

Explanation:

anthropologists are suspicious of naturalizing discourses because

Answers

-They ignore historical evidence showing how present-day arrangements contrast with earlier social arrangements

- They direct attention away from current social inequalities, insisting that these inequalities are so deeply rooted that attempting to change them would be impossible.

-They ignore variations in social arrangements in other present-day societies, which show that social life may be organized differently

Anthropologists are suspicious of naturalizing discourses because they ignore historical evidence showing how present-day arrangements contrast.

What are the roles of anthropologist?

An anthropologist is a person engaged in the practice of anthropology. Anthropology is the study of aspects of humans within past and present societies.

Creating research plans that address underrepresented topics. Executing research protocols that adopt a holistic study design. Promoting the co-creation of information by employing participatory approaches.

Anthropologists, people who conduct anthropological studies, identify aspects of being human as their focus. For example, one anthropologist might explore mating rituals of a small tribe in New Guinea.

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Which procedure will determine if water temperature affects the weathering of sedimentary rocks?

Answers

Answer:

Sedimentary.

Explanation:

Sedimentary will determine if water temperature affects the weathering of sedimentary rocks.

What happens to the states of matter when the temperature changes

Answers

    They may either release heat or gain heat. With a temperature increase, the kinetic energy increases and the state of matter will increase (example, ice to water aka solid to liquid)

    If the temperature decreases, then the kinetic energy decreases and the state of matter will decrease (example, water vapor to water aka gas to liquid)

Have a nice day!

    I hope this is what you are looking for, but if not - comment! I will edit and update my answer accordingly. (ノ^∇^)

- Heather

where would the majority of the dna be located within a eukaryotic cell?

Answers

Answer:

cell nucleus

In eukaryotic cells, most DNA is located in the cell nucleus (though some DNA is also contained in other organelles, such as in the mitochondria and the chloroplast in plants). Nuclear DNA is organized into linear molecules called chromosomes.

Explanation:

2. Organisms that are made up of more than one cell are called
a. viruses
b. bacteria
c. unicellular
d. multicellular

Answers

Answer:

Multicellular

Explanation:

They are composed out of more than one cell meaning it can't be unicellular. It can not be a virus or bacteria either because it is only identified as a cell made up of more than one cell, not the effects of what the cells do. Hope this helped!

Answer:

multicellular

learnt in school

what modern day scientist use to learn the Ordovician Period

Answers

Rocks from the Ordovician Period contain evidence that plants began colonizing dry land at this time. Most experts agree that the ancestors of land plants first evolved in a marine environment, then moved into a freshwater environment and finally onto land.

Ordovician Period, in geologic time, the second period of the Paleozoic Era. It began 485.4 million years ago, following the Cambrian Period, and ended 443.8 million years ago, when the Silurian Period began. Ordovician rocks have the distinction of occurring at the highest elevation on Earth—the top of Mount Everest.

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Basal bodies are most closely associated with which of the following cell components?.

Answers

microtubule roots and fibres

the number of phenotypes in a population is determined by

Answers

Answer:

The number of phenotypes produced for a given trait depends on how many genes control the trait.

Explanation:

Based on heredity, the number of phenotypes in a population is determined by the number of alleles for that triat as well as the nature of the alleles.

What is a phenotype?

A phenotype is a physical expression of a gene.

The phenotype of an organism is influenced by the inherited alleles for that gene that an organism has.

Alleles are alternate forms of a gene.

Alleles may either be;

dominant,recessive, incompletely dominant or co-dominant.

The phenotype of that organism will thus depend on the nature of the alleles of that gene or trait.

Therefore, the number of phenotypes in a population is determined by the number of alleles for that triat as well as the nature of the alleles.

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what is the purpose of a broth in a microbiology laboratory

Answers

In microbiology laboratory, broth is very vital. Its purpose is to provide growth medium for the available bacteria necessary for working on the nutrients. Broth gives steady and constant nutrients for the bacteria to quickly reproduce. It is normally a clear liquid made from bones, meat or vegetables.

Mitosis is a type of cell division. organize the images below to show the steps of mitosis.
(QUICK PLZ)

Answers

Answer:

i believe its the first

Explanation:

The cell theory states that
(a) all organisms are made of one or more cells.
(b) all cells come from already existing cells.
(c) all the life functions of organisms occur within cells.
(d) all of the above

Answers

Answer:

All of the above

Explanation:

hope this helps

6. Challenge: Based on the weathering patterns, guess the rock type shown in each photo.


Answers

What are the photos?

DNA molecules separate into single strands which are then used to construct two identical strands of DNA this process ensures genetic

A)consistency
B)variability
C)diversity
D)reduction

Answers

Answer: A)consistency

Explanation:

Which part of the nerve cell houses the nucleus?

Answers

Answer:
B. Cell body

Step-by-step explanation:
Says B is correct lol

Answer:

B. Cell body is correct  (second posting of THIS)

Explanation:

HOW did this answer get deleted?  I'm posting again to see if it stays or is someone reporting correct answers? I highly recommend EVERYONE post CORRECT results to quiz let instead of this site

Almost end of semester, HELP!!

Specialized structures are expressed with the help of mRNA. What role does mRNA play? (5B)



Assisting with replication by producing glucose


Creating bonds to form large polymers


Providing information from DNA that is used to form proteins


Making energy available for cellular activities

Answers

Answer:

The answer is C Providing information from DNA that is used to form proteins

Explanation:

i took the test

The statement that demonstrates the role that mRNA play in protein synthesis is as follows:

It provides information from DNA that is used to form proteins.

Thus, the correct option for this question is C.

What is Protein synthesis?

Protein synthesis may be defined as a type of biological process through which polypeptide chains are formed from coded combinations of single amino acids inside the cell. The process of protein synthesis terminates with the help of two processes:

Transcription.Translation.

The process of transcription involves the copying of a DNA sequence of a gene in order to make an RNA molecule. This RNA molecule is known as mRNA which determines the linkage of DNA from the manufacturing of the proteins. This process is carried out in the nucleus of the cell.

While the process of translation involves the synthesis of proteins using the genetic information carried in messenger RNA (mRNA). This process is carried out in the cytoplasm of the cell.

Therefore, the correct option for this question is C.

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A budget that reports expected cash receipts and cash payments related to the sale and purchase of plant assets is called a: Multiple Choice Cash budget. Capital expenditures budget. Rolling budget. Sales budget. Production budget. If 40 hours is a full work week and any thing over 40 is overtime or time and a half. If u worked 50 hours one week, and 55 hours the second week how much would ur pay check beAssuming u make 15 dollars a hour for normal pay? I need help with this please What is the coefficient in this expression?3/4mn4n343 Why did the Democratic Party lose the Presidential election of 1896? How did the Populist Party change the Democratic Party? what made some of the methods traveling challenges Select the correct answer.(-1,1)(0,-1)(5,-11)(10,-21)What is the domain of the set of ordered pairs above?A. {-1, 1}B. {-1, 0, 5, 10}C. {-1, 10}D. {1, -1, -11, -21} which strand or strands shown here would serve as a template for the lagging strand? gg Calcium ions are released into the myofibrils by the __________, when activated by an impulse from a motor neuron. Nick observes that in all human societies, people use symbols to communicate idea, emoticonsb.languagec. moralityd. poetry What reasons did the members of the Constitutional Convention have for creating the Electoral College? Use examples from your research to support your answer. In the GAL gene system, ________ are cis-acting regulatory elements, and the ________ protein is a trans-acting regulatory protein. Which line from Polonius' speech to Laertes (in Shakespeare's Hamlet) is most like the line below from "Be Not Defeated by the Rain? "Watch well and listen closely." A. "Give every man thy ear, but few thy voice" B. "Give thy thoughts no tongue c. "Neither a borrower nor a lender be D. "For the apparel of proclaims the man" A chemist is studying an unknown substance and could break the substance into its elemental components only by using chemical means. Based on this observation, how should the unknown substance be classified? A. impure substance B. solution C. mixture D. pure substance What would you do if you won the lottery? How might you change as a result ofyour winnings? b) Are there any overall patterns in the data set? Striking deviations? Usemathematical reasoning to justify your answer. (2 points) With one word, describe the conflict over water between Turkey, Syria, and Iraq.Group of answer choicesaquiferslakespollutiondams How are Canada's water resources important to the country? Kirk has already prepared 16.27 kilograms of dough and will continue preparing 5.88 kilograms of dough every hour. How many hours did Kirk work if he prepared 80.95 kilograms of dough A) Briefly explain why ONE of the following options most clearly marks the beginning of the sectional crisis that led to the outbreak of the Civil War.Northwest Ordinance (1787)Missouri Compromise (1820)Acquisition of Mexican territory (1848)B) Provide an example of an event or development to support your explanation.C) Briefly explain why one of the other options is not useful to mark the beginning of the sectional crisis.