The tails of the phospholipids of the plasma membrane are made of fatty acid chains and are hydrophobic, helping to separate the inside of the cell from the outside environment.
Explanation:The tails of the phospholipids of the plasma membrane are composed of fatty acid chains and are hydrophobic (water-repelling). Phospholipids are a type of lipid molecule that makes up the bi-layer of the plasma membrane in all cells. Each phospholipid has a head and two tails. The head is polar and hydrophilic (water-loving) while the tails are nonpolar and hydrophobic. One significant purpose of these properties is to keep the aqueous environment inside and outside the cell separate.
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Which form of exercise combines stretching with movement against resistance and often involves the use of devices such as tension springs or heavy rubber bands? which form of exercise combines stretching with movement against resistance and often involves the use of devices such as tension springs or heavy rubber bands? weight training yoga static stretching pilates?
What features or variables of the plant leaves might affect the net rate of photosynthesis? how and why?
Photosynthesis replenishes the earth’s atmosphere with oxygen. The two variables that affect the rate of photosynthesis are (1) the production of oxygen (O2) and, (2) consumption of carbon dioxide (CO2). The buoyancy of the leaf is an indirect measurement of the net rate of photosynthesis in the leaf tissue. The more oxygen the leaf contains, the more buoyant or the more it floats in the water.
The level of protein structure that describes all aspects of the three-dimensional folding of a polypeptide is referred to as
Where does fertilization take place in conifers? asap!!
a-in the ovary of female cone
b-in the scales of a female cone
c-on the outer part of a male cone
d-under the scales of a male cone
A) in the ovary of female cone
- Prodixy ☕
What is the purpose of the plasma membrane?
a) makes food for the cell
b) reproduces cells
c) keeps the cell small
d) encloses specific structuers
Infants generally begin to laugh out loud at about the _____ month of life.
Water pollution is the addition of harmful substances to water. Some of these substances are found at home. What household chemicals might be harmful if not disposed of properly?
The household chemicals that might be harmful if not disposed of properly are - cleaning supplies, bleach, laundry detergent, window cleaner, fertilizers. oils, and soap
Various household and industrial chemicals can enter the environment from many different sources such as landfills, incinerators, tanks, drums, or factories.
Human exposure to hazardous chemicals can occur at the source or the chemical can come into contact with people.Chemicals can move through the water and cause water pollution.They can also affect the food we eat and the water we drink.The household chemicals that might be harmful if not disposed of properly are - cleaning supplies, bleach, laundry detergent, window cleaner, fertilizers. oils, and soap
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Fill in the blanks. glycolysis leads to the production of ______ and two molecules of atp. in the absence of oxygen, fermentation can lead to the production of ______. glycolysis plus the krebs cycle (citric acid cycle) can convert the carbons of glucose to xxxxxx , storing the energy as atp, xxxxx and xxxxx.
Glycolysis results in the formation of pyruvate and generates ATP. Under anaerobic conditions, fermentation gives rise to lactic acid. The Krebs cycle transforms the carbon atoms from glucose into carbon dioxide, while simultaneously storing energy in the form of ATP, water, and molecules that carry electrons.
Explanation:Glycolysis results in the production of pyruvate and the generation of ATP. Under anaerobic conditions, fermentation gives rise to lactic acid. In the Krebs cycle (citric acid cycle), the carbons from glucose are converted into carbon dioxide while simultaneously storing energy in the form of ATP, water, and electron carrier molecules (NADH and FADH2).
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What leads to an individual having too many or two few chromosomes?
What is the niche of a deer
Which of the following statements about opossums is true? a. Opossums do not give birth to live young. b. Opossums are mainly active during the day. c. Opossums play dead to evade predators. d. Opossums are similar in size to squirrels.
Answer:
c. Opossums play dead to evade predators.
Explanation:
Opossums are marsupials and endemic to the regions of America. They are known to display a very unique physiological behavior of playing dead whenever they are under stress due to encounter with a predator. Playing dead is an involuntary response which occurs automatically in the body of opossums which may last from 40 minutes to 4 hours.
Rest of the options are wrong because opossums are viviparous not oviparous. They are nocturnal i.e. active during night & inactive during daytime. They are bigger in size as compared to squirrels.
What would happen to the microfilaments in a cell if the process of dynamic instability were interrupted so that only polymerization continued?
What does cell specialization allow cells to do?
Why is it extremely unlikely for the development of powerful lungs to occur after the adolescent period?
It is extremely unlikely for the development of powerful lungs to occur after the adolescent period due to the natural course of human lung development.
During adolescence, the lungs undergo some further development, including an increase in size, enhancement of elasticity, and an increase in the number of alveoli, which are the tiny air sacs responsible for gas exchange. However, after adolescence, the structure of the lungs becomes relatively fixed. The number of alveoli does not significantly increase, and the lung tissue does not undergo substantial changes in terms of developing greater power or capacity.
Several factors contribute to the unlikelihood of significant lung development after adolescence:
1. Alveoli Multiplication: The majority of alveoli are formed by the end of the alveolar period. After this period, the formation of new alveoli either ceases or occurs at a very slow rate.
2. Lung Tissue Elasticity: While the elasticity of the lungs can be somewhat maintained or improved through healthy living and exercise, the structural changes that would lead to significantly more powerful lungs are not typically observed after adolescence.
3. Genetic Factors: Lung capacity and function are influenced by genetic factors, and once physical maturity is reached, the genetic blueprint for lung development has largely been realized.
4. Hormonal Changes: Hormonal changes during puberty influence lung growth. After adolescence, these hormonal changes stabilize, and thus, the hormonal stimulus for lung development diminishes.
5. Respiratory Muscle Development: The muscles used for breathing, such as the diaphragm and intercostal muscles, can be strengthened through exercise, which can improve respiratory function to some extent. However, this does not equate to the development of more powerful lungs in terms of increased alveolar surface area or changes in lung architecture.
6. Aging Process: As individuals age, lung function naturally declines. This decline is due to a variety of factors, including decreased elasticity, stiffening of the chest wall, and a decrease in respiratory muscle strength.
Black eyes are dominant to orange eyes, and green skin is dominant to white skin. sam, a mendalien with black eyes and green skin, has a parent with orange eyes and white skin. carole is a mendalien with orange eyes and white skin. if sam and carole were to mate, the predicted phenotypic ratio of their offspring would be _____.
The predicted phenotypic ratio of the offspring of Sam and Carole would be 8 black eyes and green skin : 0 orange eyes and white skin.
Explanation:The predicted phenotypic ratio of the offspring of Sam and Carole can be determined by using a Punnett square. Since black eyes are dominant to orange eyes and green skin is dominant to white skin, we can represent Sam's genotype as BBGG (black eyes and green skin) and Carole's genotype as OOWW (orange eyes and white skin). When we cross these genotypes, the possible genotypes of their offspring are BOGW, BOGW, BOGW, BOGW, BOGW, BOGW, BOGW, and BOGW. Therefore, the predicted phenotypic ratio would be 8 black eyes and green skin : 0 orange eyes and white skin.
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The predicted phenotypic ratio of Sam and Carole's offspring would be 1:1 for black eyes and orange eyes, and 1:1 for green skin and white skin.
In Mendelian genetics, the principle of dominance governs the inheritance of traits. Since black eyes are dominant to orange eyes, Sam must carry one dominant black-eye allele (B) and one recessive orange-eye allele (b). Similarly, since green skin is dominant to white skin, Sam must have one dominant green-skin allele (G) and one recessive white-skin allele (g).
Carole has orange eyes and white skin, which means she must be homozygous recessive for both traits (bb and gg).
When Sam (BbGg) and Carole (bbgg) mate, they can produce offspring with the following genotypes: BbGg (black eyes and green skin), Bbgg (black eyes and white skin), bbGg (orange eyes and green skin), or bbgg (orange eyes and white skin).
The phenotypic ratio of their offspring would be 1:1 for black eyes (BbGg + Bbgg) to orange eyes (bbGg + bbgg) and 1:1 for green skin (BbGg + bbGg) to white skin (Bbgg + bbgg), resulting in an overall predicted phenotypic ratio of 1:1 for each trait.
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Which of the following is NOT a subatomic particle?
proton
voltron
electron
nuetron
The lowest end of the continuum of intermediate sanctions is:
Which stage of the cell cycle involves the division of the cell’s nucleus? mitosis cytokinesis interphase replication
Answer: Mitosis.
Explanation: Mitosis is when this occurs.
Answer:
Mitosis
Explanation:
the answer is mitosis
Describe slate, phyllite, schist, and gneiss in terms of texture and grain size
suppose you find a piece of yellow metal in a stream how can you tell if it's real gold
Compare this number to the standard density of gold, which is 19.32 grams per milliliter. If your calculated density is very close to the standard density.
People generally possess ___________ self-schema.
a.one
b.three
c.no (i.e., none)
d.many
The word cervical means pertaining to the
Sedimentary rocks are formed in layers. What is this layering called?
-Foilation
-Ripple Marks
-Nonfoliation
-Stratification
Answer: Stratification
Explanation:
The state in which all body systems are functioning smoothly and in equilibrium is __________.
which of the following statement tells how facilitated diffusion differs from sample diffusion
Facilitated diffusion differs from simple diffusion in that it involves the use of specific carrier proteins to move molecules across the cell membrane.
Explanation:
Facilitated diffusion and simple diffusion are both forms of passive transport. However, they differ in how they move molecules across the cell membrane. In facilitated diffusion, molecules move across the membrane with the help of specific carrier proteins. These proteins create channels or pores that allow certain molecules to pass through. On the other hand, simple diffusion occurs when molecules pass directly through the lipid bilayer of the cell membrane without the need for protein channels.
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What happens to water molecules in light dependent reactions?
To replenish the photosystem II's lost electrons, water splits into oxygen, hydrogen ions, and electrons in the reaction that is light-dependent.
What role of water in light dependent reactions?Water not only creates oxygen, but also hydrogen ions and electrons. NADPH (nicotine adenine dinucleotide phosphoric acid in its reduced form) and ATP are created using the electrons and protons (adenosine triphosphate).
Additionally, ATP is created to be used in the light independent reactions as hydrogen ions flow through ATP synthase.
Chlorophyll absorbs solar energy during the light-dependent reactions that occur at the thylakoid membrane and then uses water to change it into chemical energy.
As water is broken down, oxygen is released as a consequence of the light-dependent reactions.
Therefore, Energy storage and electron donor/carrier molecules include ATP and NADPH.
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What is the current widely accepted theory about global climate change and what are some predictions associated with it?
Answer:
Anthropogenic (man-made) Global Warming, or AGW
Explanation:
The current, widely accepted, theory about global climate change is call Anthropogenic (man-made) Global Warming, or AGW. The theory states that man-made greenhouse gases, primarily carbon dioxide (CO2 ), are the predominant cause for the global warming that has occurred during the past 50 years.
One of the predictions associated with the AGW theory is that man-made Carbon dioxide (CO2) is responsible for floods, droughts, severe weather, crop failures, species extinctions, spread of diseases, ocean coral bleaching, famines, and literally hundreds of other catastrophes. It is believed that these disasters will become more frequent and more severe as temperatures continue to rise. They also believe that nothing short of a large and rapid reductions in human emissions will save the planet from these catastrophic events.
A new theory called cosmoclimatology proposes a natural mechanism for climate fluctuations. This theory was developed by Henrik Svensmark, Head of the Center for Sun-Climate Research at the Danish National Space Center.
Answer:
The theory concerning global climate change is that carbon and oxygen are combining to form co2 causing global climate change. Predictions are that they will be positive and negative effects, positive effects are they produce more crops and cold related deaths. Some negatives are damage to crops, rising of sea level, spread of disease and other things.
Explanation:
Which part of the sphenoid bone houses the pituitary gland? which part of the sphenoid bone houses the pituitary gland? the lesser wings the "seat" of the sella turcica the cribriform plate the foramen ovale?
The answer is the sella turnica. It is a saddle - shaped depression in the body found in the sphenoid bone of the human skull that contains the pituitary gland. And this is also found in other skulls of hominids like chimpanzees, orangutans, and gorillas.
Which of the following is NOT a subatomic particle?
electron
voltron
nuetron
proton
what is the concern with wild organisms in terms of health？
Commercial potential of biotechnology is immense since the scope of its activity covers the entire spectrum of human life. The most potent biotechnological approach is the transfer of specifically constructed gene assemblies through various techniques. However, this deliberate modification and the resulting entities thereof have become the bone of contention all over the world. Benefits aside, genetically modified organisms (GMOs) have always been considered a threat to environment and human health. In view of this, it has been considered necessary by biosafety regulations of individual countries to test the feasibility of GMOs in contained and controlled environments for any potential risks they may pose. This paper describes the various aspects of risk, its assessment, and management which are imperative in decision making regarding the safe use of GMOs. Efficient efforts are necessary for implementation of regulations. Importance of the risk assessment, management, and precautionary approach in environmental agreements and activism is also discussed.