Answer:
B
Explanation:
Fertilization is the process in which male and female gametes fuse and form a fertilized egg. The correct option is B.
What is the process of fertilization?During fertilization, sperm and egg combine to form a zygote in one of the fallopian tubes.
The zygote then travels down the fallopian tube and develops into a morula. The morula develops into a blastocyst once it reaches the uterus.
The blastocyst then burrows into the uterine lining, which is referred to as implantation.
The sperm binds to the secondary oocyte via the corona radiata, a layer of follicle cells on the outside of the oocyte.
Fertilization is divided into three stages: sperm capacitation and acrosome reaction, sperm-egg binding and fusion, and cortical reaction and oocyte activation.
In a nutshell, sperm capacitation takes place in the female genital tract and prepares sperm cells for the acrosome reaction.
Thus, the correct option is B.
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Plz help I need help
Answer:
provide support and structure to the cell
Answer:
option c
Explanation: PLS MARK BRAINLIEST
Explain a standard curve and mention what is its use
A standard curve is a tool that allows us to estimate the DNA concentration of unknown samples by comparing them to standards with known DNA concentrations.
How is population size and population density dofferent
Answer: Population size means the total number of organismns in a given area like number of oak trees in a forest. Population density means number of organisms living per unit area like number of oak trees in say 1 sq km of the forest.
Explanation: :)
What is the bayolegy
If you're talking about biology, it is the study of Earth. If this is not what you're looking for, I'm sorry.
As food travels through the digestive system, it is exposed to a variety of pH levels. The stomach has a pH of 2 due to the presence of hydrochloride acid (HCI), and the small intestine has a pH ranging from 7 to 9. HCI converts pepsinogen into pepsin, an enzyme that digests proteins in the stomach. Which of the following most likely happens to pepsin as it enters the small intestine.
A. it becomes inactive
B. It begins to replicate
C. Its shape changes to engulf large pepsin
D. Its activity increases to digest more proteins
Answer:
the answer should be D on edge i am a little rusty but hope this helps.
Explanation:
20
Drag each label to the correct location on the image.
When a honey bee stings or a pathogen attacks, the body elicits an inflammatory response. Label the processes that happen during an
inflammatory response.
The inflammatory response is a type of body response produced in response to damaged tissue, attack of pathogen and or any other cause.
The body shows an inflammatory response in the following manner:
1. Recognition of stimulus- receptors recognize the antigens.
2. Release of inflammatory markers: affected cells produce chemicals like histamine, bradykinin, and prostaglandins.
3. Vascular permeability changes and leukocyte (WBC) recruitment- released chemicals causes the blood vessels to leak fluid causing swelling and attract WBC.
4. Accumulation of leukocytes- WBC performs the process of phagocytosis which eats dead or damaged cells and germs.
I hope this is what you were looking for
Organisms that live near or on the ocean floor are called
Answer:
Benthos
Explanation:
Animals that live on the sea floor are called benthos. Most of these animals lack a backbone and are called invertebrates. Typical benthic invertebrates include sea anemones, sponges, corals, sea stars, sea urchins, worms, bivalves, crabs, and many more.
Answer:
Organisms that live near or on the ocean floor are called benthos.
hope this helps <3
Which statement describes Newton's first law of motion?
A. Objects only change motion when a nonzero net force acts on them.
B. Increasing the distance between objects decreases the gravitational force between them.
C. An object's acceleration is determined by the net force acting on it divided by the object's mass,
D. When one object pushes another, the second object pushes back with an equal force in the opposite direction
Answer:
I think it is D that's would sound the best
Which type of fossil does this image depict?
A.
cast
B.
carbon imprint
C.
mineralized fossil
D.
original-tissue fossil
Answer:
this is a mineralized fossil
Explanation:
Answer:
its a cast. i took a test and got it right <3
Explanation:
different between prokaryotic and eukaryotic cells
Answer:
eukaryotic cells have a membrane-bound nucleus and prokaryotic cells do not.
hope this helps <3
The main difference between prokaryotic and eukaryotic cells is that prokaryotic cells do not have a nucleus while eukaryotic cells do have a nucleus.
Hope this helps you! :)
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Fatty acids are the basic unit of which macromolecule?
Determine the age of the rocks and fossils by moving the samples to the mass-spectrometer. Record the data in the Student
Guide
Answer:
No answer
Explanation:
This is just a data collecter, to add the information into your 'Student Guide". Don't fret !
Answer:
No answer needed. Just drag them over, and record the evidence in the eNotes.
Explanation:
explain the adaptations of the kidney nephrons to their duty(give three at least)
It has a selective permeable Bowman's capsule that only allows food substances and food products to pass through but prevents the passage of plasma proteins and blood cells. ... The kidney tubules are highly vascularised to ensure constant removal of reabsorbed substances hence creating more room for further reabsorption.
Hellpppp I really need the answers
Answer:
x- summer y- winter
Explanation:
It looks like x is closer to the equator and would therefore have hotter weather, meanwhile y looks like it's closer to the top of the planet (where its a lot colder)
Select all the molecules that are produced in photosynthesis and then used in cellular respiration
ATP
Water
Oxygen
Glucose
Carbon Dioxide
Answer:
carbon dioxide
Explanation:
cells use carbon dioxide and energy from the sun to make sugar molecules and oxygen
PLS HURRY!!!
What is the function of chloroplasts in plants?
O to produce food
O to absorb nutrients
O to provide support
O to allow air to pass
Answer:
To produce food is the correct answer.
Who knows biology at the college level?
Answer:
I only know birds at a college level. Still studying. BY MYSELF
Explanation:
1. There are 60 chromosomes in a goat's somatic cell. Answer the following:
a) How many haploid chromosomes and diploid chromosomes are in a goat's cell? .........
b) The number of chromatids per chromosome for mitosis (list how many are in prophase, metaphase, anaphase, and telophase separately), for meiosis I (prophase I through telophase I), and meiosis II (prophase II through telophase II).
c) Total number of chromosomes and chromatids per cell in G1, end of S phase, and G2. And the total number of chromosomes and chromatids per cell in mitosis ( list the total for prophase, metaphase, anaphase, telophase, cytokinesis separately), of meiosis I (prophase I through cytokinesis), and meiosis II (prophase II through cytokinesis)
Answer:
c po
Explanation:
thats my ansewr po ty
If human red blood cells are placed in a 0 osmoles/L solution, a 100 osmoles/L solution, a 300 osmoles/L solution, and a 500 osmoles/L solution, then _________________ will be the isotonic solution.
OPTIONS:
0 osmoles/L solution
100 osmole/L solution
300 osmoles/L solution
500 osmoles/L solution
If human red blood cells are placed in solutions of different osmolarity, then the 300 osmoles/L solution will be the isotonic solution.
An isotonic solution to the red blood cell would be a solution that has the same solute concentration as the red blood cell.
Isotonic solutions are different from hypotonic and hypertonic solutions. Hypotonic solutions would have lower solute concentrations than the red blood cell while hypertonic solutions would have higher concentrations than the red blood cells.
The red blood cells of humans have a certain amount of solute in their cell sap which has been approximate to be between 286 and 295 osmoles/L. Thus, the only solution close to being an isotonic solution to these cells would be the 300 osmoles/L solution.
More about osmolarity can be found here: https://brainly.com/question/8144230
Answer: 300 osmoles/ L solution
Explanation:
The 300 osmoles/ L solution is the solution closest to the osmolarity of a normal human red blood cell.
This means that the 300 osmoles/ L solution is the isotonic solution. If added to human red blood cells, the shape and size of the red blood cells with remain as they were, unchanged (unlike if a hypotonic/ hypertonic solution was added.)
What factors create deep ocean currents
Answer:
Deep currents are driven by temperature and water density/salinity. Of course, deep currents impact surface currents, which carry warm water to the poles. Surface currents are also driven by global wind systems fueled by energy from the sun. Factors like wind direction and the Coriolis effect play a role.
Explanation:
28
¿Cuántos elementos hay presente en una molécula de agua (H20)?
(3 puntos)
1
2
3
4
Answer:
sana all may brainnnnnnnnnnn
2. A scientist is investigating the chemical properties of a hydrogen atom (H), which has an
electroegativtiy of 2.1, and a chlorine atom (CI), which has an electronegativity of 3.0.
Suppose these two atoms form a chemical bond resulting in the compound HCI.
Predict whether the compound is held together by an ionic, a polar covalent,
a nonpolar covalent, or a hydrogen bond.
Explain your prediction.
Describe the bond in terms of its electrical charge. (PLEASE HELP I NEED IT BY 11:59 50 POINTS)
A Nonpolar Covalent, Because A nonpolar covalent bond is a covalent bond in which the bonding electrons are shared equally between the two atoms. ... A nonpolar covalent bond is one in which the distribution of electron density between the two atoms is equal.
Explanation:
I Think :DDD
Why is the energy transfer between tropical levels not even close to 100% efficient
Answer:
because at each level there is respiration loss
Explanation:
i think tell me if im rong
What is a DEPENDENT variable? A. the group under normal conditions that is not experimental B. the variable that is changed and being tested C. the variable being recorded or observed D. the observation made that began the experiment
Answer: something that can not be alone it relies on the independable varieble
Explanation:
its depends on the conditions you put it through you HAVE to have an independable varable in order for their to be a dependant variable. so A i was leaning toward B tho
The following is the chemical equation for photosynthesis:
Based on this equation, answer the following:
Which of these processes is MOST directly involved in the resorption of a tadpole’s tail during development?
A. Apoptosis
B. Mitosis
C. Phagocytosis
D. Protein synthesis
Answer:
A. Apoptosis
Explanation:
An organism’s scientific name consists of which TWO taxonomic groups? (Select the TWO correct answers).
Class
Domain
Genus
Species
Kingdom
Phylum
Order
Family
Answer:
Scientists use a two-name system called a Binomial Naming System. Scientists name animals and plants using the system that describes the genus and species of the organism. The first word is the genus and the second is the species
An organism’s scientific name consists of which two taxonomic groups, genus, and species. The correct options are c and d.
What are taxonomic groups?Taxonomic groups are the groups that contain different groups in which the organism are divided. These are arranged from higher to lower groups. The highest group is the kingdom.
Kingdoms are divides of the different organisms of the earth. Taxonomy is organizing different organisms in a line so, that it will be easy for their studying.
The two taxonomic groups that come in last are genus and species. Genus and species make the scientific name of the organism. The genus contains animals that are most similar to each other. Species are similar organisms, that can breed with each other.
Therefore, the correct options are c, Genus, and d, Species.
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Kill most of the hawks using the button and then click play observe the graph for about 12 months and then click phase what happen
What is the amplitude?
1) The distance between the two crests
2) The highest point in the wave
3) The lowest point in the wave
4) the distance from the center of the wave to the crest or the trough.
Answer:
4) the distance from the center of the wave to the crest or the trough.
Explanation:
AMP-PNP is a non-hydrolyzable ATP analog that cannot be metabolized by cells. Taurocholate is a bile acid that helps emulsify fats. When taurocholate is added to hepatocyte cell culture, it accumulates in those cells. The graph below shows the rate of cellular accumulation of the drug taurocholate in the presence of either no ATP, ATP, or AMP-PNP. Based on this data, describe the mechanism by which taurocholate enters the cell. Justify your answer.
Answer:
ATP plays a critical role in the transport of macromolecules such as proteins and lipids into and out of the cell. The hydrolysis of ATP provides the required energy for active transport mechanisms to carry such molecules across a concentration gradient.
Explanation:
ATP plays a critical role in the transport of macromolecules such as proteins and lipids into and out of the cell.
What is ATP?
A vital "energy molecule" present in all living things is adenosine 5′-triphosphate, also known as ATP and typically written without the 5′-. In particular, it is a coenzyme that transfers energy to cells by releasing its phosphate groups when it interacts with enzymes like ATP triphosphatase.
Particular to plants and cyanobacteria is the process of photophosphorylation. During photosynthesis, it is the conversion of ADP to ATP utilizing solar energy. In the mitochondria of a cell, the process of cellular respiration also results in the formation of ATP.
This can be done through either anaerobic or aerobic respiration, depending on whether oxygen is present.
Therefore, ATP plays a critical role in the transport of macromolecules such as proteins and lipids into and out of the cell.
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