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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the difference between Eukaryotic and prokaryotic cells
Answer:
Eukaryotic cells are cells with a nucleus (such as animal and plant cells) whereas Prokaryotic cells are cells without a nucleus (such as a bacterium cell)
Explanation:
This cell is dividing into two new cells. Which two statements describe the two new cells?
A. Each new cell has a unique combination of genes.
B. Each new cell contains genetic information that is different from what was in the original cell.
C. Each new cell carries genetic information that is the same as what was in the original cell.
D. Each new cell is genetically identical to the other.
D) each new cell is genetically identical
Which of the following best describes the composition of a nucleotide?
Select one:
a.
a pair of six-carbon rings attached to each other
b.
a carbon atom joined to a hydrogen and three functional groups
c.
a chain of carbon atoms with a carboxyl group bonded to one end
d.
a five-carbon sugar attached to a phosphate group and a nitrogenous base
Answer:
d
Explanation:
Nucleotide is composed of 3 main subunits, which are nucleobase, a five-carbon sugar (ribose or deoxyribose), and a phosphate group consisting of one to three phosphates.
as the ball falls back toward the floor, it's____energy increases and its_____decreases
Answer: as the ball falls back toward the floor, it's kinetic energy increases and its gravitational potential energy decreases
Answer:
As the ball falls back toward the floor it’s kinetic energy increases and it’s potential
Explanation:
Select all the ratios that are
equivalent to each other.
A4:7
B. 8:15
C 16:28
D. 2:3
E 20:35
Could someone help me out with this easy question? I wasn’t in class today.
Answer:
B snsjididiwhejtofijsndixichhdje
8- Most gymnosperms have reproductive structure called cones
true
false
Answer:
.
Explanation:
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)
1. Write a story about how one or more limiting factors affect a particular plant or
animal in an ecosystem, from the perspective of this plant or animal.
Answer:
-Perspective of a fox with limited prey like rabbit.
-Perspective of a tree or flower with limited water.
-Perspective of a moose with limited predators like wolves.
Explanation:
I can't write a full story for you, but I hope these can help you out!
5. What is the advantage of looking at prepared slides on living and nonliving organisms under the
Micsorocope?
Answer:
Explanation:
Living:
1. You see how the organism (cell) moves.
2. You see how the organism is made up of all sorts of different things that you could not see without the help of a microscope.
3. You see how blood (for example) is made up of all sorts of cells that have far different jobs.
4. You see how bone marrow (for example) shows how different cells interact.
Non Living.
1. You see how the cell structures interlock
2. You see how different structures look under an immense magnification that you cannot see with the naked eye.
3. You see how animal and plant tissue is different.
-- How do scientists predict the weather over our future?
The Short Answer:
To predict future climate, scientists use computer programs called climate models to understand how our planet is changing. Climate models work like a laboratory in a computer. ... Scientists use computer programs called climate models to understand how our planet is changing.
Is 2Na + H2O → 2NaOH + H2 a balanced equation?
Answer:
Yes
Explanation:
Its reaction type is single replacement.
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
Which of the following choices is a component in the community of a wetlands
ecosystem?
A. Water
B. Sunlight
C. Soil
D. Frog
Answer: Water
Explanation:
A community is the occupied space by a population of two or more species. Water is a community component of a wetland ecosystem. Thus, option A is correct.
What is a wetland ecosystem?Wetland is a type of ecosystem that comprises water reservoirs and has an excess of stored water in the form of bogs, marshes, and swamps. A wetland ecosystem includes many biotic and abiotic factors that interact and live together.
The wetland ecosystem is characterized by the presence of water throughout all the years. It is a valuable ecosystem that absorbs excess precipitation so as to avoid flooding and soil erosions. Hydrology, soils, and biology are the main components of the ecosystem.
Therefore, option A. water is the component of the wetland ecosystem.
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HEYYYYYYYYYY PLEASE HELP!!!!!
Answer:
Velocity
Explanation:
Given the change in positive (direction) over time we are given the velocity formula.
V = Change in direction/Change in time
Since we are given a direction we can rule out speed as well as direction in itself. We can also rule out acceleration because that is the change in Velocity divided by change in time.
HELP ME OUT PLEASE!!
Based on the element square shown above, how many neutrons would an atom of Boron usually have?
5
6
10
11
The answer is 6 neutrons
Which characteristic best explains why lentic ecosystems are more responsive to seasonal changes than lotic ecosystems?
Photosynthetic organisms keep lentic ecosystems warmer during the winter season.
Lentic ecosystems are susceptible to temperature due to their low dissolved oxygen.
Lotic ecosystems have low nutrient levels, making them more sensitive to temperature.
Lentic ecosystems tend to have smaller volumes of water compared to lotic ecosystems.
Lentic ecosystems tend to have smaller volumes of water compared to Lotic ecosystems.
Lentic ecosystem consists of still (stagnant) volume of water and good examples include ponds,lakes, basins etc.
Lotic ecosystem , on the other hand consists of a flowing volume of water and examples include seas, oceans, rivers etc.
The Lentic ecosystem usually is usually still and is affected by seasonal changes as it contains smaller volume of water when compared to the Lotic ecosystem which has a high volume.
Seasonal changes such as summer or winter affects the Lentic system easily as the small volume of water gets heated up and frozen easily which encourages more evaporation and freezing respectively.
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Answer:
what he said^ but the answer is down here<_>
Explanation:
jk but he is right
Why do metals dissolve in acids?
Answer:
In water or acids, the metals trade places with hydrogen. The hydrogen escapes as a gas, and metal atoms, no longer attached to the object from which they came, dissolve in solution.
sorry if I'm wrong but I wrote this in my hw and it was right so ye
plz help and no links
Multicellular plants and animals have organs to perform specific functions.
What do eukaryotic cells have to perform specific functions?
A.cytoplasm
B.ribosomes
C.organelles
D.vacuole
Answer:
Organelles
Explanation:
Answer:
organelles
Explanation:
yeeeeeeeeeeee
Maths is a difficult subject. (Make exclamatory.)
Answer:
so true
Explanation:
i wish it was easier
help please?!?!?!?!?!?!?!
Answer:
I would guess b or d
Explanation:
Which environmental factor would cause the greatest decrease in the number of species of plants and animals living in some of the lakes in the United States?
Global warming
Ozone destruction
Acid rain
Increase in dissolved oxygen levels
Hurry plz
Biology is . . .
A. a branch of science.
B. a static branch of science.
C. not a diverse branch.
A
biology is branch of science which deals with life
Answer:
A
A branch of science
Explanation:
Biology is the study of living things(plants and animals) and their interactions with one another and the environment. It deals with the study of life
Select all that is true about the ocean floor.
A)We know more about Mars and the Moon that we do about the ocean floor.
B)The ocean floor is relatively flat and featureless. C)The goal is to have the entire ocean floor mapped by 2030.
D)We use sonar and satellites to map the ocean floor.
E) Although there are mountain ranges underwater, they are not as tall as ones in the United States.
Answer:
A,B and D
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What process takes place in plant and animal cells that involves chemical reactions with oxygen and releases stored energy? cell division meiosis cellular respiration photosynthesis
Answer:
cellular respiration
Explanation:
I did the test-
C. cellular respiration
Explanation: Becuase yes.
* I got the quiz*
PLS HELP THIS IS GIVING ME DEPRESSION
33 divide by 55 I'm confused as well
165 miles per hour
d = rt
d = 55*3
d = 165
ASAP PLEASE
What are some careers/jobs that use the scientific method while working?
Explain how each step is connected to a specific part in the job also
At least 3 THANK YOU
Answer:
Maybe an engineer.
Explanation:
They build stuff do experiments and have to guess and make hypothesis (what science has)❤️ I. really hope this helps:)
100 Points!
Which Change over time in Landsat maps would most likely be associate with contaminated water habitats nearby?
A. increased size of dark green areas
B. increased size of gray areas
C. green areas replaced with yellow areas
D. Gray areas replace with light green areas
Answer:
The answer would be B,
Explanation:
Increased size of gray areas is the change over time in the landsat maps that would most likely be associated with the contaminated water habitats nearby. Thus, the correct option is B.
What are Landsat maps?
Landsat is a moderate spatial-resolution imagery which provides the large areas of repeated data coverage at a scale that enables the users to see the detailed human-scale processes, such as urbanization, but not the individual houses.
The Landsat series of Earth Observation satellites have continuously acquired images of the Earth's land surface, which provides uninterrupted data to help the land managers and policymakers to make informed decisions about the natural resources and the environment. The increase in the gray areas in the landsat maps is associated with the water contamination.
Therefore, the correct option is B.
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Which cell is capable of mitosis:
O a. fibrocytes
b. adipocytes
O C. chondrocytes
d. osteoblasts
e. osteoclast
Answer:
Osteoclast
Explanation:
Where in a cell would you most likely find DNA?
Your answer is → compartment within the cell called a nucleus
In a cell, DNA would most likely be found inside the nucleus which is known as the controlling center of the cell.
What is DNA?DNA stands for Deoxyribonucleic acid. It is considered the most common genetic material of living organisms. The genetic information of a particular organism is encoded with these segments, known as DNA.
The process of transcription is initiated within the nucleus of the cell which transforms DNA into mRNA. It is known as the brain of the cell. Due to compartmentalization in eukaryotic organisms, a well-defined nucleus has appeared which helps in the transfer of genetic information from one generation to the next.
Therefore, the nucleus is the region where DNA is most likely found within the cell.
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