Answer:
nonpolar fatty acid tails
The hydrophobic, or “water-fearing,” part of a phospholipid consists of its long, nonpolar fatty acid tails. The fatty acid tails can easily interact with other nonpolar molecules, but they interact poorly with water.
Answer:
The head
Explanation:
You know how phospholipids always look like they're facing outward? Well, it's because they have hydrophilic (water-loving) heads and hydrophobic (water-fearing) tails. The tails are on the inside of the phospholipid bilayer because they are hydrophobic. The heads, on the other hand, are hydrophilic, meaning that they face the outside of the phospholipid bilayer, towards the water.
How can the founder effect cause a previously rare genetic disorder to become common in the new population?
Answer and Explanation:
The founder effect is a special case of genetic drift.
The Founder effect refers to the consequences that occur from the origin of a new population produced by a small number of founder individuals that come from an ancestral bigger population. The new population originated from a few founder individuals, who came from a bigger population and that established in a new environment.
This small population might or might not be genetically representative of the original one. It might show poor genetic variation and hence, a high possibility of expressing a peculiar allelic composition. Some rare alleles might be in exceed or might be completely lost. Consequently, when the small population increases in size, it will have a genetically different composition from the original one. In these situations, genetic variability is reduced and there is a high possibility of developing a peculiar allelic composition. If the number of individuals that originates the new population is very low, the founder effect will be very extreme, because the magnitude of this change is inversely related to the original number of the founder individuals. These changes produced by genetic drift accumulate in time, and eventually, some alleles get lost, while some other might set.
There are certain examples of the founder effect, such as Huntington's disease in South Africa or the Ellis syndrome characteristic of the Amish people from Pennsylvania.
The _______ two objects are to each other, the stronger the force of gravity is between them.
Answer:
The strength of the gravitational force between two objects depends on two factors, mass and distance. the force of gravity the masses exert on each other. If one of the masses is doubled, the force of gravity between the objects is doubled.
Explanation:
Answer:
The strength of the gravitational force between two objects depends on two factors, mass and distance. the force of gravity the masses exert on each other.
Explanation:
One characteristic of living things is that they all
Answer:
Reproduction
Explanation:
All All living things must be able to reproduce.
Glycogen is a polymer in animal tissues which stores extra sugar molecules until the animal needs them. What is the name
of the molecule found in plants that functions similarly?
O A. Glucose
O B. Cellulose
O C. Starch
O D. Lipids
Answer:
C. Starch
Explanation:
Functionally, both starch and glycogen are polysaccharide storage molecules for energy and both are intended to provide a supply for later use.
A. Glucose is incorrect because it is short term energy, in both plants and animals and is also a monosaccharide.
B. Cellulose is incorrect because, despite being a polysaccharide, it is mainly used for structure and support.
D. Lipids is incorrect because they store energy but it is for fat energy, not sugar. Lipids also have other uses such as structure and signaling, and insulation.
Measurements made while observing a plant grow 3 cm over a two week period are called:
Answer:
Data Based on your observations
Will GIVE BRAINLIEST!!!!!!!! Which statements describe dichotomous keys? Check all that apply. A dichotomous key uses characteristics to separate organisms from one another. A dichotomous key uses characteristics to separate organisms into two groups. Dichotomous keys use questions or statements to identify organisms. Dichotomous keys may be created with yes–no questions. Dichotomous keys may have three or more answers for each question or statement.
Answer:
1,3,4
Explanation:
A dichotomous key uses questions/or statements to help identify organisms, it can also use characteristics in it's questions such as yes and no statements to help separate organisms from one another.
TEST HELP PLEASE!!!!!!!
It is best to say that the protection to properties offered by sea walls along coasts __________.
A. decreases the present and future risk to human properties
D. increases both the present and future risk to human properties
C. decreases the present but increases the future risk
D. increases the present but decreases the future risk
Please select the best answer from the choices provided
O A
О В
О С
O D
Answer: D
Explanation: just because it's D.
Answer:
A. decreases the present and future risk to human properties
Hope this helps
What are the precautions must be taken while measuring an object with the help of a scale?
Make sure to zero out the scale with the cup before pouring on it
Is the widely accepted scientific theory that characteristics of a population may change over time, and that current species may gradually give rise to new species.
Answer:
Evolution theory
Explanation:
The evolution theory was developed by Darwin and it is a generally accepted theory that deals with gradual changes in the characteristics of organisms due to their quests to adapt to continuous changes in the environment.
As the environment of organisms keeps changing, the population of the organism keeps adjusting. Individuals that are able to adjust to the changes survive and are able to reproduce while the weak ones gradually die off from the population.
Hence, the entire characteristics of the population is changed with time as a result. The continuous changes sometimes lead to some species within the population giving rise to a new species entirely.
Check your Understanding.
1.Explain why over 96% of the
human body is made up of only
four elements.
Answer:
Explanation:
The four elements been referred to here are hydrogen, oxygen, carbon and nitrogen.
These four elements constitute the majority of the human body because of a combination of factors. Although, some of these factors are the major reasons, for instance the human body is made up of cells which are the basic structures of life. The cell consists of over 70% of water (which is made of hydrogen and oxygen). Also, oxygen is inhaled through the process of respiration which combines with other molecules (such as haemoglobin to form oxyhaemoglobin) in the human body. These among others make oxygen the most abundant element in the human body.
Naturally occurring organisms usually have a high concentration of organic molecules (molecules made of majorly carbon and hydrogen). This makes the human body have a high percentage (after oxygen) of carbon and hydrogen. Also, carbohydrates (which are later converted to glucose) form a large part of our diet and are stored in the body as glycogen (causing the body to have a high amount of carbon and hydrogen atoms).
Nitrogen is an essential part/element found in amino acids which are building blocks of protein. Proteins are involved in several metabolic activities in the body; this makes the abundance of nitrogen the fourth (one of the four) most common element in the body. It should be noted that amino acids also have carbon and hydrogen elements also.
The combination of the factors above among some other factors make the human body comprise mainly of these four elements
Living organisms like animals and plants are primarily made up of carbon, nitrogen, oxygen, and hydrogen.
Humans are primarily composed of four elements hydrogen, oxygen, carbon, and nitrogen.
The four elements that are primarily found in the human body play a crucial role in the developmental, physiological, and chemical processes of the body.
The human body is made up of cells, which constitute these elements and are 70% water. Oxygen is vital for the respiration process, in which complex substances are broken down to yield energy.
Carbon and hydrogen are organic molecules that make up the essential nutrients of the body such as carbohydrates and proteins.
Thus, the combination of these elements is required for the development and survival of organisms.
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How are muscle cells in bone cells similar
Explanation:
Bones shape our body and help is to stand up straight. Muscles are attached to bones, they help us walk and run and smile. All the bones in our body make up our skeleton - from the top of our skill to the tips of our phalanges at the end of our toes. Muscles stretch across our bones and are attached with tendons.
A flea and dog are an example of Choose... , because the flea irritates the dog's skin and feeds on its blood. Certain bacteria live in the digestive tract of humans, and their relationship is an example of Choose... because the bacteria help humans to break down the food they eat. Cattle egrets eat insects off the back of an elephant, which is an example of Choose... because the cattle egrets benefit without either harming or helping the elephants.
:
A flea and dog are an example of parasitism, because the flea irritates the dog's skin and feeds on its blood.
In a parasitic interaction, one organism benefits whereby the other one harmed. It is a positive - negative relationship. This interaction involves the interaction between the host and the parasite. The host is the bigger organism, here, the dog that is being harmed. The parasite is the flea causing the harm and benefiting from the relationship.
Certain bacteria live in the digestive tract of humans, and their relationship is an example of because mutualism the bacteria help humans to break down the food they eat.
In mutualism, the interaction is based on both organism deriving benefit from one another. Here, the bacteria gets its nourishment by breaking down human food. Human beings are able to digest the food better and are also nourished. A win-win situation is established.
Cattle egrets eat insects off the back of an elephant, which is an example of commensalism because the cattle egrets benefit without either harming or helping the elephants.
This relationship is known as commensalism in which one organism derives benefit. The other one derives no benefit and it is also not harmed in the process. The egrets feeds on the insects that are not harming the cattle.
Explanation:
I suck at biology can someone help me answer this question???
Answer:
I believe that the answer is False.
Explanation:
According to the pbs site "Of all species that have existed on Earth, 99.9 percent are now extinct."
#29
Study the information in the data table below.
a) What is the independent
variable?
b) What is the dependent variable?
Sciences
Answer:The temperature is the independent variable and the breathing rate is the dependent
Explanation:The breathing rate is dependent upon the temperature to create the variables making it the dependent one
True or false about enzymes
Answer:i cant answer because you didn't really say anything
Explanation:
Which of the following is made of matter? A) Thunder B) Mountain C) Emotions D) Fire
Answer:
it should be mountain.
Explanation:
Answer:
mountains
Explanation:
it should be right
This question is about the nutritional content of two foods, X and
Y. The diagram shows two burning foods, X and Y, being used to
increase the temperature of water. The temperature of the water
in each test tube is recorded at the start of the experiment, before
the food is set alight. It is recorded again at the end of the
experiment, after the food has stopped burning. The initial mass
of each food and the volume of water should be kept constant in
both experiments. Explain why these should be kept constant.
In a small population of Brazilian natives, the frequency of gene p, responsible for this disease, is 0.3. What must be the frequency of people who are heterozygous for this disease?
Answer:
Explanation:
According to hardy weinberg
p+q=1
p2+2pq+q2=1
p stands for the dominant genotype
q stands for recessive genotype
pq stands for population that are not homogenous i.e not the same
Given that p=0.3
P2=0.09
q=1-0.3= 0.7
q2=0.49
2pq= 2×0.3×0.7
=0.42
Therefore, the frequency of heterozygous population is 0.42
p2+2pq+q2
0.09+0.42+0.49 = 1
if someone told you they had discovered a new microscopic life form, tell me three characteristics that you would expect the life to possess.
Answer: there might be single celled and very sensitive to change they might They are vitally important in the food chain and to the health of our planet.
They might be single-celled and extremely sensitive to change, but regardless of this, they play a crucial role in the food chain and in maintaining the health of our planet.
What characteristics that the life to possess?Cellular organization, the capacity for sexual reproduction, growth and development, energy usage, homeostasis, reaction to their environment, and the capacity for adaptation are characteristics shared by all living creatures.
All of these characteristics will appear in living creatures. Despite changes in the external environment, living things strive to maintain a constant internal temperature.
Homeostasis is a process like this, and it ranks as the sixth most significant aspect of life biology.
Excretion, growth, sensibility, movement, breathing, and reproduction. While some non-living creatures might exhibit one or two of these traits, only living organisms exhibit all seven traits.
Therefore, reproduction, growth, and development are the characteristics that the life to possess.
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PLZZZ HELP ASAP THANKS :))))
A round red ball is an example of
Physical change
Chemical change
Physical property
Chemical property
Explain why?
Thank you greatly appreciated!
Answer:
I think it is Physical change
explain how the biosphere facilities movement of water from the geosphere to the atomosphere.
Answer:
Explain how the biosphere facilitates movement of water from the geosphere to the atmosphere. The biosphere includes all living components of the Earth. ... Water from the plants is incorporated into the atmosphere through a process called transpiration, where water from the plant evaporates and enters the atmosphere.
Answer:
The biosphere includes all living components of the Earth. Plants, a part of the biosphere, pull water from the ground, part of the geosphere, for their use in the process of creating food. Water from the plants is incorporated into the atmosphere through a process called transpiration, where water from the plant evaporates and enters the atmosphere
Explanation:
edg 2020
Which food is at a temperature that allows bacteria to grow well ? A) a roast at 125•F (52•c) B) hamburgers at 165•f (74•c) C) pork chops at 170•f (77•c) D) A steak at 180•f (82•c)
The correct answer is A) A roast at 125°F (52°C)
Explanation:
In general terms, bacteria thrive at warm temperatures; this means bacterial growth is lower at extremely hot/cold temperatures, but it is higher at warm or medium temperatures. Indeed, the ideal temperature for bacteria to develop and reproduce is between 4° C and 60°C. This implies from the options given the roast at 52°C represents an ideal temperature for the growth of bacteria. Also, other options include temperatures above 60°C, and therefore do not allow bacteria to grow well.
Plzzzz Which of the following is a major determinant of the distribution pattern of a population? Habitat area, social interactions, the ages of the individuals, rate of population growth.
rate of population growth
Answer:
social interactions.
Explanation:
why do scientist use a common system of measurement
To keep the accuracy, consistency and minimize the discrepancy in the experimentation, a common system of measurement was favoured by the scientists.
What is a system of measurement?A system of measurement is formed of standardized units that are used to define a quantity.
System of measurement is referred as SI unit. It is considered the same universally. System of measurement is accepted everywhere with the same units of measurement.
It is used for the measurement of length, time, mass, temperature, current etc.
System of measurement is advantageous as it eliminates the confusion regarding different expression of units.
It makes the interpretations and comparisons easier as the conversion of measurement units will be nil.
System of measurement provides a reference units for various experimental analysis. It is important in research and quality analysis.
Thus, system of measurement enables correct interpretations of calculations.
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What type of cells are Merkel cells?
pressure sensing cells
immune defense cells
sweat producing cells
pain sensing cells
Answer:
Pressure sensing cells
Explanation:
Merkel cells provide information on pressure, position and deep static touch features such as shapes and edges. They are tactile sensors on the business of mechanotransduction. They encode surface features of touched objects into perception, but also have to do with proprioception.
Can someone please help me
Which of the following organisms
are capable of self-fertilization?
A. plants
B. tigers
C. humans
In order for a theory to be considered valid it must be: inferred from personal interpretation observed at least one time repeatable recorded
Answer:
Repeatable
Explanation:
In order to consider a theory valid, it should be repeatable. The correct option is C.
What is a theory?A hypothesis or a set of ideas intended to explain something, especially one based on general principles unrelated to the thing to be explained is referred to as a theory.
A satisfactory theory is always repeatable.
Thus, the correct option is C.
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Which coal is on the bottom layer ?
Answer:
Anthracite is the coal situated at the bottom layer.
Explanation:
Anthracite is the best quality of coal as it is found deep inside the earth's surface and due to high pressure and temperature inside earth's surface it is more qualitative.
AND remember peat is the poorest quality of soil. Some people say lignite is the poorest quality of coal this answer is also correct.
I HOPE IT WILL HELP YOU
Where should the biosphere label appear in the system model? Use reasoning to explain your answer.
Answer:
Biosphere is the one of the sphere of geological sphere of the earth such as geosphere, hydrosphere and atmosphere. It is deal with the interaction and existence of the living organisms.
In this model it can be seen that there are human, fishes, and vegetation of plants are living organisms so living organisms in the hydrosphere (fishes), geosphere (plants) and anthrosphere (human) should be label as biosphere instead of atmosphere or with atmosphere.
The biosphere label should be appeared in the system model that contains geological sphere of the earth.
What is biosphere?
It is the one of the sphere that comprise of the geological sphere of the earth like the geosphere, hydrosphere and atmosphere. In this, there should be the existance and the interaction of the living organism.
Here in the given model, there should be the human, fished, etc should be labeled as the biosphere rather than the atmosphere or without the atmosphere.
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