Answer:
Primary types of body tissues include epithelial, connective, muscular, and nervous tissues. Epithelial tissues form the covering of all body surfaces, line body cavities and hollow organs, and are the major tissue in glands.
Explanation:
In the context of a scientific experiment, what is a control group?
A) a group that is treated differently from others except for the variable being tested.
B)a group that is treated the same as other groups except for the variable being tested.
C)a group assembled only under environmentally controlled conditions.
D)a group treated the same as others except that it has fewer subjects.
Answer:
B. A group that is treated the same as other groups except for the variable being tested.
In the context of a scientific experiment, a control group is a group that is treated the same as other groups except for the variable being tested.
what is scientific experiment ?The scientific experiment can be defined the test the hypothesis from observation and it is the foundation of the scientific method.
There are different steps involve in scientific method and the steps are Making observations, form the hypothesis, design and conduct experiment, evaluation of results, both accept or reject the hypothesis.
variable is the factor which will be compulsorily added to an experimental set up such as dependent, independent and controlled variables.
An independent variable is the parameter which can not influenced by other factor while it can change other factor where as A dependent variable depend on other variable and it can be changed by the influence of independent variable.
Control variable which remain constant can not be changed, but it is important as it prevent bias from the result of experiment.
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A female has a brother who is color blind and a mother who is not.
What is the probability that the female is a carrier for the trait?
25%
100%
50%
0%
25% is the probability that the female is a carrier for the trait. So, the correct option is (A).
What is Colourblindness?Color blindness is defined as a reduced ability to differentiate between colors compared to the norm of normal human color vision. It is also called color vision deficiency (CVD) when a person is color blind, usually having difficulty distinguishing between certain colors such as yellow and orange, green and brown, pink and grey, or blue and green. Purple. These are typical of what is called "red-green color blindness".
The genes that can give red-green color blindness are passed on the X chromosome, although it is passed on the X chromosome, red-green color blindness is more common in males, causing males to inherit it from their mothers. There is only 1 X chromosome.
In the above case, if the mother is not colour blind but her son is color blind so, the probability for her daughter is 25%.
Thus, 25% is the probability that the female is a carrier for the trait. So, the correct option is (A).
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what is chromatography and what are types of chromatography
Chromatography is a process for separating components of a mixture. ... The different components of the mixture travel through the stationary phase at different speeds, causing them to separate from one another.
There are four main types of chromatography. These are Liquid Chromatography, Gas Chromatography, Thin-Layer Chromatography and Paper Chromatography.
Liquid Chromatography is used in the world to test water samples to look for pollution in lakes and rivers.
Answer:
Chromatography is a method used by scientists for separating organic and inorganic compounds so that they can be analyzed and studied.
Types of chromatography are:
-Column chromatography
-Ion-exchange chromatography
-Gel permeation (molecular sieve) chromatography
-Paper chromatography
-Thin-layer chromatography
-Gas chromatography
-Dye-ligand chromatography
-Hydrophobic interaction chromatography
-Pseudo affinity chromatography
-High press chromatography (HPLC)
Explanation:
unique propertys of water how is this property explained by the structure of water molecules and the bonds between them
Answer:
Water is v-shaped
making an angle of 105°
Explanation:
water has low boiling and melting point
usually below 300°c
If disaccharides undergo dehydration, a polysaccharide will be made.
True
False
Answer:
False
Explanation:
polysaccharide are formed when dehydration reaction occurs between a large number of monosaccharides. amylose is a polysaccharide compose of between 60 and 300 glucose
Cells that move around as the formless Protista amoebas do are called what?
Answer:
protists
Explanation:
what organelles are found in mouse skin?
The epidermis of alpha-MSH-treated 3-day-old mice and normal 6-day-old mice contained melanocytes with numerous fully melanized melanosomes, and with no or only a few melanoblasts. Changes in other organelles in differentiating melanocytes were also noticeable..
Mice's epidermis had melanocytes with a large number of fully melanized melanosomes but few or no melanoblasts.
What are melanosomes?Melanosomes are tissue-specific organelles that are related to lysosomes and are found in pigment cells. Melanins are generated and stored in melanosomes.
Melanins are complex pigments that give mammals their color as well as photoprotection against ionizing radiation. Melanins are found in the skin, hair, and eyes of mammals. In addition to this, they play a role in the development of the optic nerve system and govern the functions of the retina.
Within the melanocyte or the growing retinal pigment epithelial cell, melanosomes progress through four morphologically distinct phases during the maturation process.
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Removing groundwater for drinking water will stop the water cycle.
True
False
False, removing groundwater for drinking water will not stop the water cycle.
Groundwater, in essence means water present and existing beneath the rock surface. They are stored in the tiny pores of the rock below the earth surface.
Groundwater are the sources of fresh water resources.Rock are drilled with machine to get access to the groundwater.Groundwater are naturally replenished through precipitation, from rivers, lakes and other water bodies.In conclusion, Groundwater form part of the water cycle because after the use of water, its eventually evaporates to the cloud and discharges back into the ground through the rain, rivers, lakes etc.
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Which describes a seed that is most likely dispersed by water? A.) covered with hooks B.) attached to the cell C.) hollow inside D.) brightly colored
Answer:
C.hollow inside
Explanation:
Water dispersed seeds are hollow. The air cavity inside is large to counteract the seed weight and keep floating as long as it isn't pierced.
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______________________
models can represent things that are too far away or to small to see
true or false?
Answer:
True
Explanation:
What is the rule for making a atom positive/+ion?
Answer:
Ions are formed when the number of protons in an atom does not equal the number of electrons. If more protons are present, the ion is positive and is known as a cation; if more electrons are present, the ion is negative and referred to as an anion.
Explanation:
What does a molecule have?
Explanation: a molecule has 2 or more atoms bonded chemically by various methods like ion and covalency
_________ feed on dead matter, causing it to decay while ________ feed on already decaying matter.
A. Decomposers, Consumers
B. Saprobes, Detritivores
C. Producers, Consumers
D. Detritivores, Consume
Answer:
Decomposers, Consumers
Explanation:
Answer:
B) Saprobes, Detritivores
Explanation:
Saprobes derive their nourishment from nonliving or decaying organic matter.
Detritivores feed on dead, organic material and play an important role in the breakdown of organic matter from decomposing animals and plants.
Which condition is required for viruses to reproduce?
Answer:
A host is required so that the virus is able to reproduce.
Explanation:
Unlike bacteria, viruses cannot survive without a host. They primarily survive while attaching itself onto a host's cell. So therefore, in order for meiosis to occur within a virus, it needs a host first. In addition, viruses don't need another virus because viruses are prokaryotic cells.
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______________________
Scientific laws can be thought of as general descriptions of what we see happening around us.
true or false?
Answer is TRUE
Scientific laws can be thought of as general descriptions of what we see happening around us.
How is biotechnology useful for society?
Answer:
Like all technologies, biotechnology offers the potential of enormous benefit but also potential risks.
Biotechnology could help address many global problems, such as climate change, an aging society, food security, energy security and infectious diseases, to name just a few.
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explain the disadvantage in terms of energy loss when humans eat beef rather than legumes
Answer:
Katha Ko Bajja Muchi Ko Chora
The main disadvantage in terms of energy loss when humans eat beef rather than legumes is the inefficiency of energy transfer.
When humans consume beef, they are consuming meat from animals that have themselves consumed plant-based foods. However, energy is lost at each step of the food chain. Plants capture energy from the sun through photosynthesis and convert it into organic compounds.
When animals consume plants, only a fraction of that energy is transferred to the animal's tissues, as some is used for metabolic processes, movement, and other functions.
Therefore, when humans consume beef, they are indirectly obtaining energy from plants but at a much lower efficiency. If humans were to consume plant-based foods directly, such as legumes, they would bypass the energy loss that occurs in the conversion of plant energy to animal energy. Legumes are protein-rich plant sources that can provide comparable amounts of nutrients and energy without the same level of energy loss.
By opting for legumes instead of beef, humans can have a more efficient and sustainable use of energy resources, reducing the environmental impact associated with livestock production and utilizing plant-based sources more directly.
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The DNA sequence AGGCTTCGCGAAGGTAAC would code for the sequence of 6 amino acids.
True
False
Answer:
True
Explanation:
Amino acids are coded from the DNA sequence in groups of three bases, that is, three bases (three letter codes) also called codon codes for (or specifies) an Amino acid.
in the above DNA sequence each of the prospective 6 Amino acids will each require a triplet of bases. Thus, the simple calculation of 6×3 yields 18. Thus we need at least 18 bases in our DNA sequence, barring stop codon, to code for Amino acids.
Counting, the above DNA sequence contains 18 bases exactly.
Why do you blink
This is what it looks like when you blink with your eyes and mouth
LOL
Ans我们每一个人都在不断地眨眼，正常人每分钟要眨眼10～20次，每次眨眼的时间约0.2～0.4秒
除去睡眠时间，一个人一天要眨眼1万次左右，人体中最忙碌的算是提睑肌了
每次眨眼间隔时间仅4～5秒钟wer:
lanation:
Why is it important to study cells? Check all that
apply.
They are the basis of all living things.
Knowledge of the functioning of cells can
lead to treatments for human diseases.
Cells prevent infection.
DONE
Answer:
1 and 2
Explanation:
edge 2021 ;P
Which of the following statements about eukaryotic RNA is true?
O -A small cap of extra nucleotides is added to both ends of the RNA.
O -The modified RNA molecule is transported into the nucleus.
-Exons are spliced together.
-Introns are not transcribed from DNA to RNA.
Answer:
A small cap of extra nucleotides is added to both ends of the RNA
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The statement 'exons are spliced together' is TRUE. The exons are the coding regions of genes.
RNA splicing is a eukaryotic mechanism by which non-coding sequences of genes called 'introns' are removed from the precursor messenger RNA (pre-mRNA), whereas protein-coding sequences called 'exons' are spliced together.These gene coding sequences (exons) are spliced together by a macromolecular complex known as the spliceosome.In consequence, a pre-mRNA is converted into a mature mRNA, which is subsequently used for protein synthesis.In conclusion, the statement 'exons are spliced together' is TRUE.
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During protein synthesis at the ribosome, the ______ pairs with:
A) nucleotide/nucleoside
B) codon/anticodon
C) codon/amino acid
D) mRNA/DNA
the result is line B) codon/anticodon
The pizza that you ate for lunch is being digested. Summarize what happens to it in your stomach.
Answer:
This is the one.. that i did when i was schooling.. I still hv it thank fully..
Hope it help..!!
Explanation:
The correct answer about the digestion in the stomach of the pizza one eats is - The pizza is churned, mixing with digestive enzymes and gastric acid.
Digestion of the food takes place in the alimentary canal or digestive system. In this organ system different organs are used to digest different food molecules and absorbs them.
Let assume you ate a pizza slice in which it moves through the alimentary canal. it begins from the mouth and ends at colon through the esophagus, stomach, small intestine, large intestine.
Mouth: here pizza is chewed with our teeth, broken down and mixed with our saliva. Saliva also has an enzyme, called amylase, to help break down carbohydrates. This called bolus that moves to the esophagus to stomach.Stomach: a pouch shape organ where the pizza mixes it with gastric juice and digestive enzymes to digest protein by pepsin. The food or pizza now called the Chyme that moves to small intestine.Small intestine: receiving the pizza in the small intestine, pancreatic juices and bile from the gallbladder mixed with it and digest the pizza.The nutrients from the chyme (the pizza) absorbed in the small intestine.Thus, the correct answer is - The pizza is churned, mixing with digestive enzymes and gastric acid.
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Which definition best matches the term globalization?
A. The belief that all national groups have the right to control their
own countries
B. The growing connection among economies and societies around
the world
O C. The establishment of powerful empires that control weaker
colonies
D. The increasing acceptance of civil and human rights for citizens of
all countries
Answer:
B
Explanation:
that is the answer to the question
how can you tell from diagram that sucrase is not used up during the chemical reaction?
Answer:
The arrows in the diagram above show that this reaction is a cycle. Therefore, sucrase is reused in the next chemical reaction. In addition, there is no changes to the way sucrase is depicted in the diagram.
The arrows in the above diagram indicate that this reaction is a cycle. As a result, sucrase is reused in the following chemical reaction. Furthermore, no changes have been made to the way sucrase is depicted in the diagram.
What is enzyme?Enzymes are biological catalysts that are almost always proteins. It accelerates a specific chemical reaction in the cell. The enzyme is not destroyed during the reaction and is reused.
Enzymes are classified into six functional classes based on the type of reaction they are used to catalyze. Hydrolases, oxidoreductases, lyases, transferases, ligases, and isomerases are the six types of enzymes.
Sucrase accelerates hydrolysis by breaking the bonds between sucrose and releasing fructose and glucose subunits.
The arrows in the diagram above indicate that this is a cycle reaction. As a result, sucrase is recycled in the subsequent chemical reaction. Moreover, no modifications to the way sucrase is depicted have been made.
Thus, this way sucrase is not used up during the chemical reaction.
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what is the primary job of golgi tendon organ? is it sense of pain or protect against injury
Answer:
When people lift weights, the golgi tendon organ is the sense organ that tells how much tension the muscle is exerting. If there is too much muscle tension the golgi tendon organ will inhibit the muscle from creating any force (via a reflex arc), thus protecting the you from injuring itself.
Answer: protect against injury
The Golgi tendon organ is a proprioceptive sensory receptor organ that senses changes in muscle tension. If there is too much muscle tension the organ will inhibit the muscle from creating any force, thus protecting itself from injuring.
Modern inventions and discoveries:
A.support Scripture and creation
B. support the idea of evolution
C. do not relate to Scripture
D. falsify Scripture
Answer:
B
Explanation:
Decomposers chemically breakdown
dead plant and animal materials. What
are the two major groups of
decomposers?
A. snails and fungi
B. crabs and lobsters
C. fungi and bacteria
Answer:
C. Fungi and Bacteria
Explanation:
because I am smart
How is the Nucleus like a brain?
Answer:
The nucleus contains the DNA of the cell which can be thought of as the brain of the cell.
The nucleus responds to stimuli via receptors which can be primary or secondary. Basically, an external ligand (hormone, protein, nutrient, etc) binds to the surface receptor of a cell, this, in turn, causes the receptor to release a messenger (most of the time circular AMP (cAMP)) which binds to a secondary receptor which is either directly inside the nucleus or on the nuclear envelope. Finally. the portion of the DNA which is responsible for the protein to respond to the ligand is activated and begins transcription.
The activated DNA section (gene) produces mRNA which in turn produces a protein in response to the ligand.
On top of this, the entire cell cycle of rest, growth, and division is controlled by the nucleus.
Many people are proponents of using nuclear power instead of burning coal to generate electricity what is an environmental disadvantage of using nuclear power
Answer:
sdakhBmkhjsbaK>HJB
Explanation:
sakjZBCK.jh