Answer: A
Explanation:
A large number of sperm cells are produced by males every day so as to increase the chance so that some have the chance of surviving and reaching the egg.
WHAT IS FERTILIZATION?Fertilization is the process by which sperm cells of a male organism unite with the egg cell of a female organism to form a zygote.
During fertilization, numerous sperm cells are produced by the male organism in pursuit of the female egg.
The sperm cells are produced numerously so as to increase the chance so that some have the chance of surviving and reaching the egg.
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How does one test for fats and oil? And color
does it give off
Answer:
paper test
actually this test no need of color observation
Explanation:
take a paper put any fatty substance and cover it with another paper and start rubbing
you can see that the paper is becoming a bit opaque
and this is because of oil or fatty substance in that food item
hope it helpedWe explain the problematic situation of respiratory diseases
Answer:
Respiratory diseases like Asthma are increasing at a significant rate due to pollution.
Explanation:
Pollution in dense cities and other areas causes damage to the lungs, causing respiratory illnesses.
PLS HELP ASAP!! THERE ARE 3 QUESTIONS 10 POINTS EACH!! PLUS BRAINLIEST IF YOU GET THE FIRST RIGHT ANSWER!!
Answer:
Question 17: B: They may provide evidence that Pennsylvania was once covered by warm ocean waters since most corals are presently found in these environments.
Question 14: I think the answer for this question might be A. But I'm not sure.
Question 10: D: Plates move toward each other and volcanic mountains form.
Explain the role of calcium ions in the structure of cell walls in plants.
Helpppp meeeeeee..............................
18. The ____ effect refers to how certain types of gases trap heat in the
atmosphere to keep the Earth warm.
*
Greenhouse
Negative Feedback
O Heater
Answer:
Greenhouse
Explanation:
Worms live in a habitat of wet soil which of the following scientist is most likely to have believed that worms are made of soil
Parasitism, mutualism, and commensalism are all forms of symbiotic relationships. How does parasitism differ from mutualism and commensalism? A. Neither organism is harmed in parasitism. B. Three or more species must be involved in a parasitic relationship. C. Both organisms are harmed in parasitism. D. One organism is harmed in parasitism.
Answer:
The answer is D, the host is only negatively affected in a parasitic relationship.
13. Which of these statements about particulate matter less than 2.5 microns in diameter is true?
A. They can cause heart and lung disease.
B. They're produced from nitrogen gas (N.).
C. They're less of a threat than particulate matter that's 10 microns in diameter
D. They're the size of a human hair.
Answer:
Nitrogen Gas
Explanation:
penn foster
lesson 2
page 13
Name the process through which gaseous exchange occurs.
Answer:
Diffusion
Explanation:
Diffusion is the spontaneous movement of gases, without the use of any energy or effort by the body, between the alveoli and the capillaries in the lungs.
in VDJ recombination occurs in the Group of answer choices variable region of the heavy chain. constant region of the light chain. variable region of the light chain. Both the light and heavy chain.
Answer:
constant region of the light chain.
Explanation:
The VDJ recombination is defined as the process where the T cells as well as the B cells are randomly assembled from the different gene segments. These are mainly known as the variables (V), the diversity (D) and the gene (G). This is done in order to generate the unique receptors which is also called as the antigen receptors so that they can collectively recognize the different types of the molecules. It mainly occurs in the constant region of the light chain.
HELP ASAP PLEASE!!!!!!!!
By designing and performing an experiment.
Explanation:
A hypothesis is an educated guess or theory, so to test a hypothesis, one would not only design an experiment, but perform it as well.
1. Match each term with the correct definition. a. Abdomen b. Chest c. Genitals d. Pelvis e. Sternum ____ External reproductive organs ____ The middle part of the trunk, containing the stomach, liver and spleen ____ The upper part of the trunk, containing the heart, major blood vessels and lungs ____ Long, flat bone in the middle of the front of the rib cage, also called the breastbone ____ The lower part of the trunk, containing the intestines, bladder and reproductive org
[tex]\huge{\textbf{\textsf{{\color{pink}{An}}{\red{sw}}{\orange{er}} {\color{yellow}{:}}}}}[/tex]
A. Abdomen:- The middle part of the trunk, containing the stomach, liver and spleen.
B. Chest:- The upper part of the trunk, containing the heart, major blood vessels and lungs.
C. Genitals:- External reproductive organs .
D. Pelvis:- The lower part of the trunk, containing the intestines, bladder and reproductive org.
E. Sternum:- Long, flat bone in the middle of the front of the rib cage, also called the breastbone.
Thanks Hope it helps.Explain Newton’s First Law and give an example of it
Answer:
When a person jumps out of a moving vehicle, he falls forward due to inertia of motion. One example of Newton's first law in real life is, when you are walking with a glass filled with water, you will notice that the water spills at certain locations when you walk at faster pace. The water inside the glass will remain at rest until you move.
Explanation:
Answer:Newton's first law states that, if a body is at rest or moving at a constant speed in a straight line, it will remain at rest or keep moving in a straight line at constant speed unless it is acted upon by a force.
An object at rest stays at rest.
Explanation:
What is a limitation of Crispr
Explanation:
Limitations. CRISPR/Cas is an extremely powerful tool, but it has important limitations. It is: ... not 100% efficient, so even the cells that take in CRISPR/Cas may not have genome editing activity. not 100% accurate, and “off-target” edits, while rare, may have severe consequences, particularly in clinical applications.
CRISPR fixes genetic code typos or mistakes
to help cure diseases
or
give the person desired genes or traits
7. The _____________ is a collection of buried, long-dead organisms and can tell us information about prior ancestors - the _____________ a fossil is, the ______________ it is in age and the ___________ related it is to modern organisms.
Answer:
Fossil.
Explanation:
Fossil is a collection of buried, long-dead organisms that can tell us information about ancestors of an organism. The physical features of fossil provides information about its relationship with modern organisms. The fossil which is present in very deep in the soil are more older than the fossil that is present in less depth. We can find age of the fossil by using radiometric dating methods which tells us about the existence of fossil on the earth.
Is it possible for a male with A blood type to have a child with a female B blood type who is O?
genetically it is impossible
the child cannot be an o as there is no o gene in the parents
Answer:
i don't think so. but I could be wrong.
Explanation:
A mother who is blood type O can only pass an O allele to her son or daughter. A father who is blood type AB could pass either an A or a B allele to his son or daughter.
Extra:
Please be sure to put this in your own words, as you may be sighted with plagiarism. Hope this helps!
Quels sont les 2 moyens de reproduction du glaïeul ?
Considering all the stages of cellular respiration (glycolysis, link, Krebs cycle, and oxidative phos phorylation) how many ATP molecules are produced from one glucose molecule, assuming ideal circumstances
Answer:
The equation of breakdown of glucose is
C6 H12 O6-> 6O2 + H2O + CO +38 ATP. Don't mind the unbalanced equation
what is the central Nervous system (cns)
Answer:
the complex of nerve tissues that controls the activities of the body. In vertebrates it comprises the brain and spinal cord.
Explanation:
^
what are the functions of the following? (Make it simple)
Vacuole
Cell Membrane
Answer:
Vacuole- Function of vacuole is they help to maintain water and minerals balance in cell.
Cell Membrance- The functions of cell membrane are:
They keep toxic substances out of the cell.It only allows sensitive material to enter and exist in cell.Which statement is true about cellular respiration?
Answer:
it occurs both in plants and animals
Help please , thank you in advance :)
Answer:
The correct answer is -
11. b. somatic cell and sex cell of the same organism.
12. d. all the genetic characters will change.
Explanation:
11. the given diagram represents two types of cells of an organism cell I is the somatic cell as it has two sets of chromosomes or diploid chromosome number whereas cell II is a sex cell such as gametes (egg or sperm) has one set of chromosomes or a haploid number of chromosomes.
12. if there is a change in a nucleotide sequence of DNA of a certain gene takes place then there will be minor or major changes occur in the result of the protein as DNA makes codes of mRNA that code for the specific protein that result in specific gene expression or character. There would be only one character that will change as the change occur only a certain gene.
A newly developed drug causes users to lose some muscle control and slur their words, The drug also results in a slowing of central nervous system activity. MOST likely this drug is a:
A newly developed drug causes users to lose some muscle control and slur their words, The drug also results in a slowing of central nervous system activity. Depressants slow the central nervous system.
What is Nervous system?Signals are sent from the brain to the rest of the body, including the internal organs, via the nervous system. Thus, the nervous system's activity regulates a variety of functions, including the capacity to move, breathe, see, and think.
The nerve cell, or neuron, is the building block of the neurological system. There are around 100 billion neurons in the human brain. A neuron has a cell body, which contains the cell nucleus, as well as distinct extensions known as axons and dendrites.
Different neuronal types control or carry out various functions. For instance, motor neurons help the brain send signals to the muscles that cause movement.
Therefore, A newly developed drug causes users to lose some muscle control and slur their words, The drug also results in a slowing of central nervous system activity. Depressants slow the central nervous system.
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A cell plate pushes the newly formed cells
away from each other and will reform with
cell walls in what type of cell?
A. animal cells
B. prokaryotic cells
C. plant cells
Answer:
think it's plant cells bcos it has cell wall
please help me in Science grade 8th
Answer:
Both earthquake and volcanoes are concentrated in specific regions.
Explanation:
The distribution of earthquake on earth is concentrated in specific zones where the plate tectonic meets or fuse with each other. Volcanoes are also concentrated in specific regions on the earth. Most volcanoes are concentrated on the edges of continents, on island chains, or long mountain ranges beneath the sea. There is a great relationship between earthquake and volcanoes because volcanic eruptions is the cause of earthquake in a region.
During what process do producers convert carbon dioxide into carbohydrates?
Carbon dioxide is converted into carbohydrates during the carbon cycle
Carbon dioxide is converted into carbohydrates during cellular respiration
Carbon dioxide is converted into carbohydrates during the eating process
Carbon dioxide is converted into carbohydrates during photosynthesis
Answer:
Answer is d
Explanation:
CO2 is converted into carbohydrates during photosynthesis
Hope u understand
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12. Which has NOT been linked to acid precipitation?
a. Toxic metal poisoning
b. Lower blood pH
c. Respiratory problems
d. Damaged monuments
Answer:
D
Explanation:
Lower blood pH has not been linked to acid precipitation. So, the correct option is (B).
What is Acid Precipitation?Acid rain is defined as rain or any other form of precipitation that is abnormally acidic, meaning that it contains high levels of hydrogen ions. Most water which include drinking water, has a neutral pH that exists between 6.5 and 8.5, but acid rain has a pH level lower than this and averages between 4–5.
Acid rain can be caused by natural causes, such as volcanic eruptions, while acid rain can also caused by human activities such as the burning of fossil fuels, manufacturing, oil refineries, electricity generation, and vehicles, all of which release sulfur and nitrogen oxides into the atmosphere.
Thus, lower blood pH has not been linked to acid precipitation. So, the correct option is (B).
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Which explanation explains why the Northern Hemisphere gets more direct sunlight in the Summer?
Probably too late answering this.
I don't know if they gave you answer choices, but something like:
"The way the earth is tipped on its axis in the summer has the Northern Hemisphere most closely angled to face the sun"
is what I would say.
Pls help..............................................................................................
Answer:
it's the earth's crust
Explanation:
cause it is