Answer:
Britannica is an excellent source of information, especially for a school project.
Explanation:
It has many articles and biographies. It also has quizzes to help test your knowledge. It is very good for school and most teachers accept it as a reliable resource.
why aren't all the cells in our body totipotent our entire lives
Answer:
somatic cells have highly specific functions
Explanation:
In our body, the major part of cells is irreversibly differentiated into somatic cells. From a cellular point of view, this process of differentiation seems to be an evolutionary disadvantage. However, cellular differentiation is a process aimed at exploiting the genetic variation in order to obtain a highly specialized cell type that is capable of carrying out a specific cellular function. For example, keratinocytes are highly specialized epithelial cells that function by separating the organism from the surrounding environment.
Differentiate between subsistence farming and commercial farming .
only 2 points:)
Answer:
Difference between subsistence farming and commercial farming
Explanation:
Subsistence farming is done basically to feed the farmers family itself. It has little or no profit.
Commercial farming is done with the intent of profit, where cash crops are sown.
what is deforestation
Answer:
Deforestation is the process of clearing out trees for industrial/agricultural purpose
Explanation:
Deforestation can cause in global warming and the reduction of ozone in the ozone causing a threat to global life
Which type of substance will react exothermically with oxygen?
Which evolutionary mechanism causes beneficial traits that are heritable to become more common in a population?
Answer:
Natural Selection.
Which of the following is NOT a part of cell theory a.All living things are made of one or more cells. b.All cells are Eukaryotic cells. c.Cells are the basic unit of life. d.Cells come from pre-existing cells.
Option b. "All cells are Eukaryotic cells" is not a part of cell theory.
Cell theory refers to the belief that all living things are made up of one or more cells that unite to form the whole body/structure/organism.
It is universally known that cells are the smallest unit of living things. Without them, there can be no structure or organism made or formed. Cell theory provides the basic description of the properties of cells. And this cell theory was developed by three major scientists- Matthias Schleiden, Theodor Schwann, and Rudolf Virchow. The trio believed that cells, being the alpha of human life, are an important element of living things. They then came upon three basic points that they term "cell theory", which states that all living things are made of one or more cells. They also stated that cells are the basic unit of life and that they come from pre-existing cells. And that cells can be either one of the two- Eukaryotic or Prokaryotic cells. The statement that all cells are Eukaryotic in nature is false because Eukaryotes are cells with a clearly defined nucleus. This means that larger organisms like animals, plants, and fungi are Eukaryotes whereas smaller ones like bacteria and Archaea do not have a membrane-bound nucleus, making them Prokaryotes.While it is understood that cells are the basic unit for living beings, there are certain points that make them important. But one statement that is wrong about the cell theory is that all cells are Eukaryotic cells. Thus, option b is the correct answer.
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Answer:
B
Explanation:
A sugar not commonly found free in nature that combines with glucose to form the disaccharide lactose is ________.
what is another word for "living thing"
Answer: Alive
Since the word living means alive, another word for living thing would be alive.
Definition of Living: To be alive; to have life.
So this means another word for living thing would be alive.
20 points
Every water molecule is made up of two hydorgen
atoms and one
oxygen
atom. This arrangement causes a water molecule to have a slightly negative
charge near it's oxygen atom and a slight-
positive
charge near each hydrogen atom. This uneven distribution of charges across a molecule is called______?
Fill in the blank
Answer:
type of forms between molecules is called a hydrogen bond.
Answer:
hydrogen bond
Explanation:
hydrogen bond
Why is the control group important?
Answer:
You would compare the results from the experimental group with the results of the control group to see what happens when you change the variable you want to examine. A control group is an essential part of an experiment because it allows you to eliminate and isolate these variables.
Explanation:
*Hope this helps*
8.Four students attempted to classify organisms into the plant and Animal kingdoms.
Their classifications are shown in the table below.
Plants
Animals
Student 1
Eukaryotic Cells
Prokaryotic Cells
Student 2
Multicellular
Unicellular
Student 3
have Cell Walls
do not have Cell Walls |
Student 4
Heterotrophic by absorption
Heterotrophic by ingestion
Which student's classification correctly separates organisms into these two kingdoms?
A. Student 1
B. Student 2
C. Student 3
D. Student 4
The classification made by student 3 correctly separated the organisms into Plant and Animal Kingdom on the basis of presence of cell wall. Thus, the correct option is C.
What is the difference between Plant cell and Animal Cell?The living organisms are classified into five major Kingdoms, from which the most complex and advance organisms belongs to the Plant and Animal Kingdom.
Plant Kingdom consist of all the organisms which show the presence of a cell wall, autotrophic mode of nutrition, and immobile in nature. Whereas, the animal kingdom consist of all the organisms which show the absence of a cell wall, heterotrophic mode of nutrition, and are mostly mobile and capture the food on their own.
The main difference between Plants and Animals is the cell wall, plant cells have an outermost cell wall in their cell which is absent in animal cell.
Therefore, the correct option is C.
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Which approach to ecological investigations is illustrated by Biosphere 2? Defend your classification.
Answer:
The correct answer is : Biosphere 2 is a model based on the creation of a miniature ecosystem with life support systems.
Explanation:
Biosphere 2 is a small model of the biosphere, which is planned by scientists and engineers, that is closed and isolated from the outside world. In this study or research, the strategy for modeling is utilized to show the performance and conduct or behavior of a real biosphere.
Researchers made a model or an artificial situation that can uphold living things. It has a scaled-down model of a tropical forest, a grassland, a sea with a coral reef, a desert, and a mangrove biosphere. In these conditions, a wide range of animal varieties was contained. Furthermore, a group of eight individuals additionally fixed themselves inside it.
DNA has the appearance of a _____. DNA has the appearance of a _____. single strand letter U double helix triple helix circle
Answer:
double helix
Explanation:
Deoxyribonucleic acid, commonly known as DNA, consists of two long polynucleotide chains composed of four types of nucleotide subunits i.e. A, G, C, T. Each chain is called a strand. Each nucleotide is made up of a pentose sugar, phosphate group and a nitrogenous base.
DNA is a double-helical structure that contains each strand in a spiral or coiled form. This double helix structure forms when two complementary strands are held together by hydrogen bonds. The bonding occurs between the nucleotide base portions of the complementary strands e.g G-C, A-T.
The george high shcool math club wasplanningfor itsannual trip the president found outthat she needed to arrangefor transportation each bus held 20 students if 100 studentssighned up for the trip how many buses were needed
Answer:
Five (5) buses
Explanation:
A total of five (5) buses would be needed for the trip.
From the illustration:
Total number of students = 100
Number of students that each bus can contain = 20
In order to calculate the total number of buses that would be needed for the trip, the total number of students would be divided by the number of students each bus can contain.
Hence, number of buses needed = 100/20 = 20 buses.
what is the poly name of lipids, proteins and nucleus acid
Answer:
Most polymers are long chains of repeating, identical, carbon-containing molecules called monomers.
Explanation:
Lipids are the exception because they have an additional, nonidentical molecule attached to each monomer chain. The additional molecule varies with the type of lipid.
Proteins are made of polypeptides, the monomer is an amino acid
Nucleic acid’s polymers are usually just referred to as RNA or DNA, depending on the variety of nucleic acids present.
How do you know if something is living. .
Answer:
Heartbeat or cells
Explanation:
If it's an animal or human it should have a heart beat if it's actually alive. Although both plants and animals (including humans) are living, because they both have cells.
What categories of living things are on land?
Answer:
Animals,plants, fungi, microorganisms
Answer:animals,plants,fungi,microoganisms
Explanation:
What type of bonds within the tertiary structure of an enzyme will break at high temperatures? Which bonds will not break?
Answer:
The bonds that will break at high temperature are hydrogen, ionic and Van der Waal's interactions. Covalent bonds will not break.
Explanation:
Answer:
Bonds in the tertiary structure of an enzyme include the covalent ,hydrogen, ionic , as well as Van der Waal's interactions.
An Enzyme is a chemical catalyst found in living organisms which helps to regulate the biochemical processes of the body. An example includes pepsin, ptyalin etc.When heat is applied to an enzyme, the unique structure is usually altered in the process known as Denaturation.
Bonds such as the hydrogen ,ionic and Van der waals force are broken when subjected to high temperatures. The covalent bond however , doesn't get affected or broken which is because it is stronger as a result of its formation involving the sharing of electrons.This makes it more stable and tightly held together.
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anyone can help me ^
Answer:
Chefs
Explanation:
Which rhinoceros species is best adapted for feeding in the large open grasslands of Africa's Serengeti ecosystem?
Answer:
White Rhinoceros :)
Explanation:
Answer:
White Rino's
Explanation:i just know
Which enzyme is active over the largest temperature range
Answer: Slurp Daddy
Explanation: I had the test
Organisms that breath make as their final waste product. Even fire creates vapor as a final waste product
Answer:
Carbondioxide, water and urea are the waste product.
Explanation:
The final waste product produced by the organisms during respiration are carbondioxide and water while urea and nitrogenous waste are also a waste product produced in the body when the digestion of food is completed. The unnecessary substances present in the food are removed and sent it to excretory organ. These waste products are removed from lungs and urinary bladder.
b. What are two examples that can be found inside a cell?
Answer:
Nucleus and chorlophlast
Explanation:
Answer:
endoplasmic reticulum
golgi apparatis
Explanation:
Describe structural changes that can occur to a protein after translation to make it function properly
Answer:
See explanation
Explanation:
Many changes can occur. Some post-translational modifications can include aggregation of polypetide subunits (chains) into larger, functional proteins. Additionally, phosphorylation and methylation may occur.
Which part of a lab Report would most likely show a line graph of the data collected
Answer:analysis
Explanation:
Milk snakes are a species of nonpoisonous snakes that inhabit a wide geographical range throughout North America. They can be gray, tan, red, orange, or black with or without bands of yellow, black, or white. Biologists have proposed that brightly colored milk snakes are adapted to regions where similarly colored poisonous snakes live because the color wards off potential predators. This is a(n) _______ explanation.
Answer:
proximate explanation
Explanation:
In biology, a proximate explanation refers to an event that is directly responsible for producing a specific result. A proximate explanation allows to explain a particular biological phenomenon immediately associated with physiological factors. In sociology, a proximate explanation enables understanding of human behavior by their more immediate factors. On the other hand, an ultimate explanation is believed to be the real cause of the observed results.
all activities are controlled by a;mitochondrion b;starch c;cellulose d;proteins
what color is an orange
Answer:
orange
Explanation:
Need Now!!!!!! Which statement is true concerning all organisms? A. All organisms respond to their environment. B.All organisms are made of many cells. C. All organisms obtain energy from other organisms. D.All of these statements are true.
What is the best definition of the term imagery?A student completed a lab report. Which correctly describes the difference between the “Question” and “Hypothesis” sections of her report?
Answer: visual symbolization and A question is when you ask something and the hypothesis is your guess answer to the question
Explanation: hope this help