Answer:
Lamarck's transmutation theory established the foundation of an evolutionary model introducing a new way to research in nature. Darwin's selection theory was proposed in 1859 to explain the origin of species within this epistemological process.
Explanation:
Can anyone help me with this?
Answer:
usiajao
Explanation:
(3) The fabric made from these fibres is comfortable to wear, does not get wrinkled easily and easy to wash
Answer:
polyester
Explanation:
Answer:
Polyester is used to make fabric. Fabric made from this fibre does not get wrinkled easily. It remains crisp and is easy to wash. It is used for making bottles, utensils, films, wires and many other useful products.
Explanation:
(Its actually Physical Science)
Which two elements in the list would bond together based on their ionic charges?
A. calcium and potassium
B. potassium and neon
C. potassium and iodine
D. calcium and neon
Answer:
It's C. Potassium and iodine
The two elements in the list that would bond together on their ionic charges is potassium and iodine. The correct option is C.
What is ionic bond?Ionic bond, also known as electrovalent bond, is a type of linkage formed in a chemical substance by the electrostatic attraction of ions with opposite charges.
When the valence (topmost layer) electrons of one atom are indefinitely transmitted to another, a bond is formed.
The complete transmission of valence electron(s) among both atoms is referred to as ionic bonding.
It is a chemical bond that produces two opposing ions. The metal loses electrons in ionic bonds to become a positively charged cation, meanwhile the nonmetal chooses to accept those electrons to become a negatively charged anion.
Ionic bonds are formed by potassium iodide (KI). Iodine and potassium have very divergent electronegativities.
Since ionic bonds form between atoms with a large difference in electronegativity, the two atoms would form an ionic bond.
Thus, the correct option is C.
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When a fan is moving is convection, conduction, or raditation, and WHY?
Answer:
Moving of fan is convection.
The faster moving air from the fan displaces the warmer air that is in direct contact with our skin. This enhances the rate of convective heat transfer, which means we feel cooler.
How bioplastics are different from ordinary plastics?
Answer:
bioplastics are Bioplastics are plastics materials produced from renewable biomass sources whereas plastics are are derived from petroleum or natural gas.
What are the similarities between modern and traditional technology
Answer:
A traditional technology is technical
advances upon which something else is
added to expand it . For example,
farmers have been using powered plows
since the steam engine. However,
modern technologies have built upon
the basic structures, purposes, and
functioning of the plow.
classification of plant moss with two characteristics
Answer:
Mosses slow down erosion, store moisture and soil nutrients, and provide shelter for small animals and food for larger herbivores. Mosses have green, flat structures that resemble true leaves, which absorb water and nutrients; some mosses have small branches.
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Pretest: Unit 1
John is testing the effect of temperature on the solubility of sugar in water,
He organized data about his experiment in the following table:
Group A
Group B
Group
Volume of water 100 ml
Temperature
25°C
90°C
5°C
1000 g
Initial mass of
sugar
Final mass of
sugar
Which of the following would be the best volume of water to use in Group B?
Final mass of sugar
Group A
what statements are true about the biological macromolecules?
A. All biomolecules could be called carbon - based molecules
B. The monomers of DNA are nucleotides
C. Ready cellular energy comes in the form of lipids
D. Carbohydrates contain nitrogen and therefore differ from other macromolecules
E. Cell membranes are made, in part, from phospholipids
F. The monomers of starch are monosaccharides
Answers:
A. All biomolecules could be called carbon based molecules
B. The monomers of DNA are nucleotides
E. Cells membranes are made, in part, from phospholipids
F. The monomers if starch are monosaccharides
All biological macromolecules are carbon-based molecules, the monomers of DNA are nucleotides, cell membranes, in part, are made from phospholipids and the monomers of starch are monosaccharides correct statements. Therefore, the correct options are A, B, E and F.
What are biological macromolecules?Biological macromolecules are large molecules constituted of organic molecules. These are necessary for the survival of an organism. The four major classes of macromolecules in the study are Carbohydrates, Lipids, Proteins and Nucleic acids.
They are all built from carbon-based or organic molecules. These molecules form important components of a living cell and constitute most of its dry weight. These macromolecules are mostly obtained from the food we eat which is broken down into nutrients which are these organic molecules.
They are also called biomolecules. Carbohydrates are energy sources made of sugars. They are broken down into glucose which is required for cellular respiration to produce energy.
Proteins perform various functions including structural, regulatory, protective etc. Lipids are non-polar compounds that store energy for the long term in the form of fats in our bodies. Nucleic acids are hereditary biomolecules that pass on traits from one generation to another.
Therefore, the correct options are A, B, E and F.
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Answer:
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Which of the following are NOT a type of inherited disease? A. Multifactorial diseases B. Single-Gene diseases C. Chromosomal diseases D. Somatic diseases
Energy needed for chemical reactions in the body is provided by the breakdown of
RNA, ATP, ADP, OR DNA?
The energy needed for chemical reactions in the body is provided by the breakdown or hydrolysis of ATP.
What is ATP?Adenosine triphosphate (ATP) is a higher energy molecule that is used to carry out cellular functions by breaking down their phosphate bonds.
ATP is produced in the body by means of a process known as cellular respiration and serves to carry out different metabolic functions (e.g., growth, reproduction, etc).
The hydrolysis of high-energy phosphate bonds present in the ATP molecule is required to perform many different physiological processes in multicellular organisms.
In conclusion, the energy needed for chemical reactions in the body is provided by the breakdown or hydrolysis of ATP.
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You have been identifying the sequence of a segment of a protein. The sequence to date is: leucine-methionine-tyrosine-alanine-glutamine-lysine-glutamate. You insert arginine between the leucine and methionine. What effect would this have on the segment
Answer:
Inserting arginine places a positively charged amino acid in a portion that is non-polar, creating the possibility of a hydrogen bond in this area.
Explanation:
Inserting arginine places a positively charged amino acid in a portion that is non-polar, creating the possibility of a hydrogen bond in this area.
What are amino acids?The amino acids are the basic building blocks of the protein nutrient. They are made up of amino group (―NH2), an acidic carboxyl group (―COOH), and an organic R group.
An asymmetric center is the carbon atom that is bonded by four different molecules.Among all the amino acids, the ones that have more that one asymmetric center include the isoleucine and threonine.
Of all the types of amino acids listed above, isoleucine and threonine are the two amino acids that have more than one asymmetric center.The sequence to date is: leucine-methionine-tyrosine-alanine-glutamine-lysine-glutamate. You insert arginine between the leucine and methionine.
Therefore, Inserting arginine places a positively charged amino acid in a portion that is non-polar, creating the possibility of a hydrogen bond in this area.
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Royal jelly is fed continuously to the queen bee for six days. Why?
hey mate here is your answer
Explanation:
because This type of feeding triggers the development of queen morphology, including the fully developed ovaries needed to lay eggs
Overview of photosynthesis, using the detailed inner structure of a leaf.
Answer:
Photosynthesis is the process in which light energy is converted to chemical energy in the form of sugars. In a process driven by light energy, glucose molecules (or other sugars) are constructed from water and carbon dioxide, and oxygen is released as a byproduct.
Explanation:
an international body of anatomists convened in 1998 to standardize anatomical terminology. the result was a book known as the ______, which accepts both latin and common english equivalents.
The result was a book known as the Terminologia Anatomica, which accepts both Latin and common English equivalents.
Terminologia Anatomica is a book that contains widely internationally accepted terminology for human gross and/or topographical anatomy both in Latin and English.Terminologia Anatomica was jointly produced by the Federative Committee on Anatomical Terminology and the International Federation of Associations of Anatomists.This book represents the international standard of human anatomic terminology.Terminologia Anatomica divides anatomical structures into different parts which include, among others: General anatomy (anatomia generalis), Joints (juncturae), Bones (ossa), Muscles (musculi), Digestive system (systema digestorium), etc.Learn more in:
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Nucleic Acids contains phosphorus
O True
O False
Answer:
True
Explanation:
Phosphorus is the only element that is identified with nucleic acids.
(*Its actually Physical Science)
Which kind of bond would occur between sodium (Na, Group IA) and chlorine (CI, Group VIIA)?
*I need this ASAP
A. ionic
B. no bond
C. metallic
D. covalent
Describe the effect of increased carbon dioxide concentration on blood pH
Answer:
As it combines with water, it forms carbonic acid, making the blood acidic. So CO2 in the bloodstream lowers the blood pH. When CO2 levels become excessive, a condition known as acidosis occurs. This is defined as the pH of the blood becoming less than 7.35
The increase in the carbon dioxide concentration on blood pH leads to the condition known as Acidosis.
What is the normal blood pH?The level of normal blood pH in humans significantly ranges from 7.35 to 7.45 on a pH scale. It is considered neutral but experimentally it is slightly basic in nature.
As the concentration of carbon dioxide in the blood increases, the carbon dioxide in the presence of water forms carbonic acid which lowers the blood pH from 7.35.
This reduction in blood pH is known as acidosis. This is caused by the overproduction of acid within the body due to excessive concentration of carbon dioxide in the blood's pH. Acidosis leads to feeling fatigued, lethargic, muscle aches, etc.
Therefore, the concentration of carbon dioxide on blood pH negatively harms the health of an individual.
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Both complex carbohydrates and lipids can provide energy to your body as they are broker
down. However, only carbohydrates are broken down into which of the following subunits?
A sugars
B amino acids
C nucleotides
D fats
Answer:
A
Explanation:
Carbohydrates give the body energy to go about your day’s mental and physical tasks. Digesting or metabolizing carbohydrates breaks foods down into sugars, which are also called saccharides. These molecules begin digesting in the mouth and continue through the body to be used for anything from normal cell functioning to cell growth and repair
Both simple and complex carbohydrates break down into glucose (aka blood sugar). A simple carb is one that’s comprised of one or two sugar molecules, while a complex carb contains three or more sugar molecules.
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1. Briefly describe the early discoveries that led to our
understanding of the human body.
Answer:
Found better working form in healthy body than in sick body, Tried different methods to reinstate healthy body trial and error, observation of symptoms, dissection to learn about anatomical structure
Explanation:People where weird back then ok
what is meant by environment
Answer:
Environment means anything that surround us. It can be living (biotic) or non-living (abiotic) things. It includes physical, chemical and other natural forces. Living things live in their environment.
Explanation:
I'm not sure but hope it helps!
Answer:
environment is the the surroundings or conditions in which includes living and non-libing things.
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Nitrogen fixing bacteria living in the roots of legumes to absorb sugars from them is an example of:
A. Commensalism
B. Predation
C. Parasitism
D. Mutualism
Nitrogen-fixing bacteria living in the roots of legumes to absorb sugars from them is an example of mutualism. The correct option is D.
What is mutualism?Mutualism is an interaction between two organisms, in which both organism live together and help each other. In an ecosystem, different organisms live together as they affect the life of each other.
Nitrogen-fixing bacteria are the bacteria that are present in the roots of legume plants, like cereal plants. They convert the nitrogen of the environment into nitrate in the soils.
So, living in the roots of the legume plants, they get nutrition from the roots, and they give atmospheric nitrogen to the soil, which increases the nutrition of the soil and the plants.
Thus, the correct option is D. Mutualism.
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Explain how political aspect of a country affect health population and environment?
Answer:
Relationship of political aspect with health, population and environment: Political aspect includes the policies formulated by different administrative sectors and government. The population policies, health policies and environment policies are approved in the parliament.
hope this helpsExplanation:
- Which cell structures are similar in the way they protect, support, and hold the other
organelles together?
A. Cell Wall, cytoplasm, and lysosomes
B. Cell membrane, cytoplasm, and ribosomes
Answer:
A
Explanation:
cell wall - protection against mechanical
cytoplasm - provide a platform which organelle can operate within the cell
lysosomes - helps cells to self destruct
To reproduce, female elephants produce eggs and male elephants produce sperm. Offspring are produced by the fusion of an egg with a sperm cell. Which statement is true about the offspring?
A.
The offspring are genetically identical to the parents because they are produced by sexual reproduction.
B.
The offspring are genetically identical to the parents because the egg and sperm are both diploid.
C.
The offspring are genetically distinct from the parents because they are produced by sexual reproduction.
D.
The offspring are genetically distinct from the parents because the egg and sperm are both diploid.
c.The offspring are genetically distinct from the parents because they are produced by sexual reproduction.
Explanation:
because they are produced by sexual reproduction.
SOMEONE ANSWER PLEASE!
As a group, you and three other students must make a presentation on an animal. Which option is the best example of your group coming to a consensus on the presentation topic?
A) A group member is selected as the team leader and the team leader chooses the presentation topic.
B) The group cannot agree on what animal to choose so your teacher chooses your presentation topic.
C) The group writes options on slips of paper, puts them in a hat, and the paper that is selected will be the presentation topic.
D) Each member gets a vote and the animal with the most votes will be the presentation topic.
please help, i'm really confused!
Answer:
option (D) is the best according to me
which part of a flower has pollen grain?
What is the basic unit of structure and function of all living organisms?
O mitochondrion
ODNA
nucleus
cell
Answer:
Cell
Explanation:
The cell is the basic unit of allllllll life on Earth. It is also the smallest thing that can still be considered 'living'. All the other choices (mitochondrion, DNA, and nuclelus) are parts of a cell, but can't be living structures on their own.
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Is the cell wall found in eukaryotic(plant-animal) or prokaryotic?
Answer: Prokaryotic
Explanation: