Humans can't reproduce without cells because the process of fertilization requires the fusion of the sperm and egg cells.
What is Reproduction?This is referred to as the biological process by which new individual organisms which are called offspring are produced from their parents through different techniques.
It usually involves the fusion of the male and female gametes which are composed of cells and contain the required DNA which are passed to the offspring. Scientific studies have made artificial embryos but there has been cases of malformations which is why it isn't feasible.
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Predict what will happen when a piece of algae (simple plant) from the ocean is placed in a beaker of fresh water. Be sure to include the appropriate vocabulary while you are explaining your answer including the salt and freshwater environments compared to the algae. (Hypertonic, hypotonic, isotonic).
When an algae from the ocean is placed in fresh water, the water environment around the algae will become hypotonic in comparison to the algae's cytoplasm.
What makes the ocean water hypotonic?The high concentration of salt and other solutes in the ocean water creates a hypertonic environment for the algae, while the low concentration of solutes in the freshwater creates a hypotonic environment.
This change in osmotic pressure will cause water to move into the algae cells, causing the cells to swell. If the water uptake becomes excessive, the cells may burst and the algae may die.
However, if the algae is able to adjust its internal salt concentration, it can survive in freshwater. This process is called osmoregulation.
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how can technology reduce global warming
Question 2 of 10
In a controlled experiment, which group experiences the test?
OA Measurements and observations
B. Instruments and equipment
C. Control group
D. Experimental group
SUB
Answer:
A is the correct answer
Explanation:
I choose A because There will just watch, measure and observe the test.
Match the following terms with their definition.
Which occurs when the body responds to the environment by maintaining a stable internal environment despite changing external conditions?
spontaneous generation
homeostasis
growth and development
reproduction
Answer:Homeostasis
Explanation: homeostasis maintains balance in the body inside the body, even if there are changing external conditions. Hope this helped =)
What are left over pieces of our Solar Systems early formation called?
*
1 point
Planetesimals
Comets
Asteroids
Nuclei
How should Alexei revise the model so that it shows the directions in which gravity affects the movement of water?
Arrow 1 should be removed.
Arrow 2 should be removed.
Arrow 3 should point the opposite way.
Arrow 4 should point the opposite way.
PLEASE HELP!
Answer:
yes it is arrow 2 should be remover
Explanation:
i sed so
On a coordinate plane, triangle A B C has points (negative 1, negative 1), (negative 2, negative 1) and (negative 2, negative 4). Triangle A prime B prime C prime has points (1, negative 1), (2, negative 1), and (2, negative 4). What is the name of the line of reflection that maps the pre-image to the image? y = x y-axis x-axis x = 1
On a coordinate plane, the triangle A B C has points, and the line of reflection that maps triangle A B C to triangle A' B' C' is the line x = 1 (last option), which is a vertical line that passes through the point (1, -1) and reflects the pre-image over this line to produce the image.
What is the line's reflection?It is a type of transformation in which a pre-image is reflected over a line to produce an image, and each point in the pre-image is mapped to a corresponding point in the image; here, for the triangles ABC, the line of reflection is x = 1.
Hence, on a coordinate plane, the triangle A B C has points, and the line of reflection that maps triangle A B C to triangle A' B' C' is the line x = 1 (last option), which is a vertical line that passes through the point (1, -1) and reflects the pre-image over this line to produce the image.
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Answer:
y-axis on edge
Explanation:
picture below. I tried x = 1 but it was wrong, I actually took a look at the image and the y-axis was in between the 2 triangles.
Particle formed by chemical bonding of two or more atoms are
Answer:
Molecule
Explanation:
A molecule is the smallest particle of an element or compound that can exist independently.
Which best describes genetic mutations
Answer:
is there any answer choices?
What would ribosomes be in an amusement park. this is due tomorrow?
In an amusement park ribosomes would be the machine that generates popcorn in the sense they serve to produce proteins for the cells.
What is the relative role of ribosomes in the cell?
The relative role of ribosomes in the cell is associated with the synthesis of proteins in the cytoplasm which may have structural and or enzymatic catalytic roles.
Therefore, with this data, we can see the relative role of ribosomes in the cell must be associated with the production of proteins required to carry out metabolic activities in the cell.
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14.Rule of Splintage
Answer:
A basic rule of splinting is that the joint above and below the broken bone should be immobilized to protect the fracture site. For example, if the lower leg is broken, the splint should immobilize both the ankle and the knee.
I need help asap!
Which of the following is the result of the sun unevenly heating air in the atmosphere and water in the ocean?
A weathering and erosion
B conduction, convection, and radiation
C wind and ocean currents
my Brain is blank… I need help asap
I gotchu, the answer is b. conduction, convection, and radiation! (hope it's right)
Answer: b
Explanation:
) Express your vission on the role of students to estabblish social peace
Students may have a crucial role in establishing social peace because generally they have thinking associated with noble causes.
What is the role of students in establishing social peace?The role of students in establishing social peace may be important in the sense they can be the force of change on the earth when their voices are heard by politicians.
Therefore, with this data, we can see that the role of students in establishing social peace may be important as long as they are comprised of noble causes such as avoiding climate change.
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Explain why a person who lived through a fire (and was pulled out of a burning building, unconscious, by a firefighter) might be more susceptible to respiratory infections.
A person who lived through a fire might be susceptible to respiratory infections because smoke particles could cause irritation of the respiratory passageway.
Smoke and respiratory passagewaySmoke is a major component of fire. Thus, a person who lived through a fire and was pulled out of a burning building, unconscious by a firefighter would definitely have inhaled a lot of smoke.
Smoke particles cause irritation of the respiratory passageway. This renders the respiratory tract susceptible to colonization by pathogens, thereby leading to respiratory infections.
Apart from smoke, heat is also able to cause damage to respiratory passageways and predispose them to colonization by pathogens.
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What are the general principles concerning the effects of teratogens on prenatal development?
The effects of teratogens on prenatal development is susceptibility, development stage, mechanisms, end points, access, and dose response.
What do you mean by teratogens?Teratology is the study of abnormalities of physiological development in organisms during their life span. It is a sub-discipline in medical genetics which focuses on the classification of congenital abnormalities in dysmorphology.
Teratology is the study of birth defects, and its goals are (1) to describe and determine etiology, (2) to explore mechanisms involved in the production of birth defects and (3) to devise means of prevention.
A teratogen is a substance that interferes with normal fetal development and causes congenital disabilities. Drugs, alcohol, chemicals and toxic substances are examples of teratogens.
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Meiosis is a form of which of the following cell divisions?
Select the correct answers
The function of lipids that are essential to living organisms include:
provide comparatively light-weight, long-term energy storagecomprise the plasma membrane of cells and give them flexibilityprovide a protective and waterproof covering for plantsThe correct options are A, C, and E.
What are lipids?Lipids are biomolecules that are characterized by their insolubility in water.
Natural compounds known as lipids include fats, waxes, sterols, fat-soluble vitamins, monoglycerides, diglycerides, phospholipids, and others. Lipids serve as structural elements of plasma membranes, energy stores, and signaling molecules.
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How does a thunderstorm break apart and disappear?
Answer: When the downdrafts in the cloud become stronger than the updrafts, the storm starts to weaken. Since warm moist air can no longer rise, cloud droplets can no longer form. The storm dies out with light rain as the cloud disappears from bottom to top. The whole process takes about one hour for an ordinary thunderstorm.
Explanation:
What percentage of their offspring will be non-colorblind male?
Answer:
50%
Explanation:
The inheritance of color blindness is determined by a gene located on the X chromosome. Males have only one X chromosome (XY), so they are more likely to inherit the condition if the gene for color blindness is present on their X chromosome.
If a male has the gene for color blindness, all of his offspring will be non-colorblind females (since females have two X chromosomes, one from each parent, and only one copy of the gene for color blindness is required for normal color vision). If a non-colorblind female (who has the normal version of the gene on one X chromosome and a non-functional version on the other) marries a colorblind male, approximately half of their male offspring will be colorblind and half will be non-colorblind.
Therefore, the percentage of their offspring that will be non-colorblind males would be 50%.
Original population
Equal
frequency
of black
and white
alleles
New population increase
Chance event reduces
population size
New population increase
Chance event reduces
population size
Allele frequency
differs
The model shows a demonstration a student prepared using black and white
marbles to show how populations of organisms can change. Which of the following
concepts is best illustrated by this demonstration?
Evolution of a predatory species
Immunity from virulent microorganisms
Genetic drift accompanying natural selection
Environmentally induced genetic mutations
HELP ASAP
Answer:
genetic drift accompanying natural selection (hope it's right and good luck)
Answer:Genetic drift accompanying natural selection
Explanation:
trust
Whay double strength lactose broth is used in the determination of MPN
Answer: It is commonly used in estimating microbial populations in soils, waters, agricultural products and is particularly useful with samples that contain particulate material that interferes with plate count enumeration methods
Match the following terms with their definition.
24. Chromosome : The portion of DNA that is condensed and rod like
25. Gene : The portion of the chromosome that codes for the single protein.
What are these components life?Chromosomes : A chromosome is a lengthy DNA molecule that contains all or a portion of an organism's genetic code. The very long, thin DNA strands in most chromosomes are covered with packing proteins; in eukaryotic cells, the histones are the most significant of these proteins.
Gene : The fundamental structural and operational component of heredity is a gene. DNA is the component of genes. Some genes serve as blueprints for the synthesis of proteins.
Nucleotide : Nucleotides are organic compounds made up of a phosphate and a nucleoside. They function as monomeric units of the deoxyribonucleic acid and ribonucleic acid polymers, which are both crucial macromolecules for all kinds of life on Earth.
Codon: a DNA or RNA molecule that codes for a particular amino acid through a group of three successive nucleotides. Some codons serve as translational start or stop signals. Start, stop, or termination codons are the names given to them.
Amino Acid : Organic substances known as amino acids have both amino and carboxylic acid functional groups. Alpha-amino acids, which make up proteins, are by far the most significant of the hundreds of amino acids found in nature. In the genetic code, only 22 alpha amino acids are present.
Rest of matching:
26. Nucleotide: Subunits that makes up Nucleic Acid
27. Codon: A set of 3 nucleotides thats code for a single amino acid
28. Amino Acid : Subunits that makes up protien
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Barry joins their discussion. He suspects that the concept of frequency is making their conversation confusing. Barry explains that the frequency of electromagnetic radiation is greater when the wavelength of the radiation is greater. Luis disagrees and claims that the frequency of electromagnetic radiation is greater when the wavelength of the radiation is smaller. Miranda says they are both wrong, that the frequency of all electromagnetic radiation is always the same. Who is correct? Why?
Luis is correct claims that the frequency of electromagnetic radiation is greater when the wavelength of the radiation is smaller.
What is electromagnetic radiation?Hertz is the unit of measurement here (Hz), if a light wave's wavelength is reduced, the frequency will increase since one cycle can occur more frequently. As a result, more cycles can pass past the set point in a single second.
The frequency and energy of radiation decrease as the wavelength of the radiation rises.
Therefore, the frequency of electromagnetic radiation is greater when the wavelength of the radiation is smaller.
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Based on your knowledge of the effects of climate change, what do you think will happen to our arable soil? How will this affect our food supply?
Soils will be affected by climate change, which will impact soil erosion, organic carbon, nutrients, and alkalinity.
How does climate change affects the food supply?Food quality and access are also impacted by climate change, which can also affect food availability.
For instance, decreasing agricultural output may be a result of expected temperature rises, modifications to precipitation patterns, modifications to extreme weather events, and decreases in water availability. It affects the production and transportation of food.
Hence, this is how climate change affects the food supply.
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In 300 words Explain the module evolution is related to microevolution and macroevolution, and explain how evolutionary relationships relate to the classification of organisms.
Answer: Microevolution is simply a change in gene frequency within a population. Evolution at this scale can be observed over short periods of time — for example, between one generation and the next, the frequency of a gene for brown coloration in a population of beetles increases. Such a change might come about because natural selection favored the gene, because the population received new immigrants carrying the gene, because of mutation, or because of random genetic drift from one generation to the next.
House sparrows were introduced to North America in 1852. Since that time, the sparrows have evolved different characteristics in different locations. Sparrow populations in the north are larger-bodied than sparrow populations in the south. This divergence in populations is probably at least partly a result of natural selection: larger-bodied birds can often survive lower temperatures than smaller-bodied birds can. Colder weather in the north probably selects for larger-bodied birds.
Green apple or red apple ?
Answer:
Red Apple
Explanation:
They r more tasty
Answer:
red apple
Explanation:
they are juicier and sweeter
12. Describe the main advantage of using remote surgery. (1 point)
Answer:
Helps you perform surgery from hundreds of miles away
Explanation:
Main advantage of remote surgery is the ability for a surgeon to perform surgery hundreds of miles away.
For example, suppose the president of US has some serious brain issue that no neurosurgeon in US can fix. But there's a neurosurgeon in France that can fix it but that neurosurgeon refuses to come to US. What happens? In a ideal world, remote surgery would be set up where the surgeon in France performs the surgery from France using a special software/tools that can control a robotic surgeon in the hospital in US to perform the surgery.
What are the general principles concerning the effects of teratogens on prenatal development? Explain
The effects of teratogens on prenatal development is susceptibility, development stage, mechanisms, end points, access, and dose response.
What do you mean by teratogens?Teratology is the study of abnormalities of physiological development in organisms during their life span. It is a sub-discipline in medical genetics which focuses on the classification of congenital abnormalities in dysmorphology.
Teratology is the study of birth defects, and its goals are (1) to describe and determine etiology, (2) to explore mechanisms involved in the production of birth defects and (3) to devise means of prevention.
A teratogen is a substance that interferes with normal fetal development and causes congenital disabilities. Drugs, alcohol, chemicals and toxic substances are examples of teratogens.
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Put the steps of our solar system's formation in the order scientists think they happened. 1₁ A cloud of gases and dust collapsed and formed a swirling disk as gravity pulled the matter together. Gravity pulled most of the mass in the disk of gas and dust to the center as the Sun formed. ++ Planets formed regular orbits around the Sun because of gravity and inertia, Planets formed as materials in the swirling disk stuck together and were held together by gravity.
solar system formed about 4.5 billion years ago from a dense cloud of interstellar gas and dust.
How was solar system's formed step by step?The Sun and the planets formed together, 4.6 billion years ago.from a cloud of gas and dust called the solar nebula.A shock wave from a nearby supernova explosion probably initiated the collapse of the solar nebula.The Sun formed in the center, and the planets formed in a thin disk orbiting around it.The planets, in order of their distance outward from the Sun, are Mercury, Venus, Earth, Mars, Jupiter, Saturn, Uranus, and Neptune. Four planets—Jupiter through Neptune—have ring systems, and all but Mercury and Venus have one or more moons.Our solar system formed about 4.5 billion years ago from a dense cloud of interstellar gas and dust. The cloud collapsed, possibly due to the shockwave of a nearby exploding star, called a supernova. When this dust cloud collapsed, it formed a solar nebula—a spinning, swirling disk of material.To learn more about solar system refers to;
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