Answer:
The Nucleus, comprised of Protons and Neutrons.
A 35-year-old bank clerk presents to your office for evaluation of fatigue. She has a 15-pack-year history of smoking and had rheumatic heart fever in childhood. On auscultation of her heart, the S2 sound is widely split; that is, it persists like that throughout the respiratory cycle. What is the most likely cause of the wide and fixed S2 split?
Answer:
I
Explanation:
The microbiome consists mostly of _____.
Answer: Bacteria, fungi, archaea, protists and viruses
Explanation:
The human microbiota does not include plants, but is composed of bacteria, fungi, archaea, protists, and viruses. Has two definitions: Microbiome (genetic) - The collective genome of the microbes living in and on our bodies.
(MICROSCOPES) "If the total magnification is 40x. The eyepiece is 10x, what is the power of the objective lens?"
PLEASE HELP! ILL GIVE 5 STARS.
Answer: the answer should be 400x
Explanation: duh
2. Which nonscience career uses knowledge from the sclence of chemistry? O firefighter O social worker O bank teller O accountant
HELP PLEAASSSEEE :,,,,)
Answer:my guess is C or D
sorry if im wrong on both of them
Answer:
c
Explanation:
I got it right
hope it helps (:
Shannon wants to see if the amount of time she studies will affect her grades. She normally studies for 30 minutes a night but decides to double her study time to one hour per night. Over the next three weeks, Shannon sees her science grade raise 10%
A. Independent Variable=
B. Dependent Variable=
C. Control=
Answer:
it is an independent variable as it can be changed by studying and also a dependent variable as you can measure her results and see its increase or decrease
Explanation:
hope this helps
could u pls help me with my latest questions pls pls pls pls pls
The variables in the given situation would be as follows:
A). Independent Variable: Amount of time given on study
B). Dependent Variable: Grade in Science
C). Control: Additional Study of 30 minutes
In an experiment or research, an independent variable is described as a variable that remains unaffected by the change in other but rather a manipulation or change in it can affect the other variables. Dependent variables are the variables that receive a direct effect of change in the other variable and therefore, it is the variable that the researcher aims to measure or study.While control helps in making the comparison of the results with or without it. Thus, the given variables are classified in this situation as mentioned above.
Learn more about "Variables" here:
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nobody can answer this by their own part 2
What are possible products of glycolytic, or anaerobic, catabolism?
Answer:
The products of a glycolytic metabolism is lactic acid and the increase of the insulin enzyme at the plasma level.
Explanation:
Lactic acid is the product of the reaction of glucose catalysis in oxygen-deficient states such as in anaerobic activity.
Lactic acid is an acid that can be metabolized by the body, which accumulates in the muscles, and is generated once the physical activity has finished or in the last stages.
Insulin, once generating the rest of the activity, or the cessation of the action, comes into play at the plasma level and increases, in order to neoform new energy reserves (glucose) and thus prepare for the next action.
This hormone has the opposite effect to glucagon.
In the thylakoid membranes, what is the main role of the antenna pigment molecules?
a) split water and release oxygen to the reaction-center chlorophyll
b) harvest photons and transfer light energy to the reaction-center chlorophyll
c) synthesize ATP from ADP and Pi
d) concentrate photons within the stroma
Answer: Option B.
harvest photons and transfer light energy to the reaction-center chlorophyll
Explanation:
In the thylakoid membranes,the main role of the antenna pigment molecules is harvest photons and transfer light energy to the reaction-center chlorophyll because the photon of light move until it get to a molecule in the chlorophyll. When it reaches the molecule, it causes an excitation of electrons in the chlorophyll. The energy then present allow it to break free from the chlorophyll atom, which indicate chlorophyll donating an electron and the energy that is absorbed is then converted to heat.
Which clue can be used to identify a chemical reaction as a combustion reaction? Oxygen is a product. A hydrocarbon reacts with oxygen. Water and carbon dioxide react. The reaction involves ions.
Answer:
A hydrocarbon reacts with oxygen
Explanation:
The clue that can be used to identify a chemical reaction as a combustion reaction from the options would be if a hydrocarbon reacts with oxygen.
Basically, a combustion reaction is a kind of reaction involving oxygen and another reactant with energy being released in the process. The energy is usually in the form of light and heat.
Thus, following the definition:
Oxygen is rather a reactant, and may not be a product in combustion reactionsWater reacting with carbon dioxide is not a combustion reactionReaction involving ions may not be a combustion reactionThe only reaction that may identify as a combustion reaction is, therefore, the one involving hydrocarbon and oxygen.
More on combustion reactions can be found here; https://brainly.com/question/12172040
3
Select ALL correct answers: Which four of the following are the major types of macromolecules?
A Carbohydrates
B Chromosomes
c Lipids
D Lysosomes
<
E Nucleic acids
F Proteins
Answer:
Carbohydrates, lipids, proteins, and nucleic acids
Explanation:
Chapter 1 biology the science of life
Answer: Unsure
Explanation:
Just doing this for the points
Answer:
grade 9 biology 2021 all chapter
how Polar molecules can dissolves other polar molecules?
Explanation:
polar molecules do not have a symmetrical distribution of charge. one part of the molecule will be more negative and another part will be more positive which allows polar substances to dissolve each other.
What happens to hydrogen bonds when water turns to ice?
Answer:
at temperatures low enough to turn off the disruptive effects of thermal motions, water freezes into ice in which the hydrogen bonds form a rigid and stable network.
Explanation:
Notice that the hydrogen bond (shown by the dashed green line) is somewhat longer than the covalent O—H bond.
the white blood cells stops the infections before it can infect the body ?
Answer:
The answer to the question is true
WHAT IS THE SEQUENCE OF A-T-G-G-C-A,
Answer:
It is the nucleoid and amino acid sequence
Explanation:
Which statement is the first step of protein synthesis?(1 point) A ribosome attaches to the mRNA. DNA unzips between the base pairs. tRNA carries amino acids to the ribosome and attaches it to the mRNA strand. Amino acids are linked together with peptide bonds.
Answer:
DNA unzips between base pairs.
Explanation:
This is the first step of protein synthesis.
The first step of protein synthesis is attachment of mRNA to ribosomes. Option A is correct.
Protein synthesis:
It is known as translation. In this mRNA is translated in to the sequence of amino acids which ultimately form protein.
First mRNA attach to ribosome,tRNA bring amino acid to ribosomes and attach to mRNA.Amino acids bond together via peptide bond.Therefore, the first step of protein synthesis is attachment of mRNA to ribosomes.
To know more about Protein synthesis,
https://brainly.com/question/16305465
In a phospolipid, the heads are
which
means
Answer:
A single phospholipid molecule has a phosphate group on one end, called the “head,” and two side-by-side chains of fatty acids that make up the lipid “tails. ” The phosphate group is negatively charged, making the head polar and hydrophilic, or “water loving.” The phosphate heads are thus attracted to the water
Hydrogen bonds form because the___
charges from different molecules are attracted to each other
A.opposite
B.same
Answer:
A. opposite
Explanation:
The positively charged hydrogen side of one water molecule is attracted to the negatively charged oxygen side of a nearby water molecule.
Opposites attract, what can i say :)
Mitochondria differ from chloroplasts in that Group of answer choices mitochondria convert solar energy to chemical energy whereas chloroplasts convert one form of chemical energy to another mitochondria contain three different membrane-bound compartments, whereas chloroplasts contain two mitochondria contain membrane folds called cristae, whereas chloroplasts contain vesicles in stacks called grana mitochondria are not found in plants, whereas chloroplasts are not found in animals
Answer:
mitochondria contain membrane folds called cristae, whereas chloroplasts contain vesicles in stacks called grana
Explanation:
Mitochondria are composed of two membranes (i.e., the inner and outer membranes), which are separated by the intermembrane space. The inner mitochondrial membrane is composed of several folds that form the cristae, which extend into the mitochondrial matrix. On the other hand, in chloroplasts, the inner membrane consists of interconnected stacks of sacs named thylakoids, whose arrangement is known as grana.
Metals are used in many products because of the characteristic properties that most metals have. Which product requires the high luster of metals in order to
work?
Answer: A mirrors
B. pots and pans
Cfood wrap
D.circuit boards
Answer:
the correct answer would be c
Explanation:
Answer:
A
Explanation:
The correct answer is A; Mirrors
4. If a galaxy is moving towards us, what would happen to the wavelengths of light that we see? How
would that change what we see?
Answer:
Redshift and blueshift describe how light shifts toward shorter or longer wavelengths as objects in space (such as stars or galaxies) move closer or farther away from us. ... When an object moves away from us, the light is shifted to the red end of the spectrum, as its wavelengths get longer.
What defines the carrying capacity of a particular species?please help
Explanation:
avarage particular size in capacity
Which of the following statements concerning ribosomes is true?
A. Several ribosomes are often attached to and translating the same MRNA.
B. Ribosomes join amino acids together to form a polypeptide.
C. Ribosomes have one binding site for MRNA and three binding sites for 1RNA molecules.
D. Ribosomes are the organelles responsible for protein synthesis.
E. All of the above statements are true.
Answer:
E. All of the above statements are
Explanation:
Ribosomes are organelles found free floating in the cytoplasm or attached to endoplasmic reticulum (RER). They are the site of protein synthesis in a cell. Ribosomes initiate the translation process by binding to the mRNA molecule using their mRNA binding site. Several ribosomes called POLYSOMES are often attached to and translating the same MRNA molecule.
A ribosome contains four (4) binding sites; one for the mRNA and three (P-site, A-site and E-site) for tRNA, which are small RNA molecules that carry and add amino acid to the growing polypeptide chain during the process. In a nutshell, the ribosome via the aid of tRNA is responsible for joining amino acids together to form a polypeptide chain (future protein).
Ribosomes are complicated macro molecules composed up of nucleic acids and proteins. They are important as they perform a major role in protein assembly and transportation.
The correct answer is:
Option E. All of the above statements is true.
The explanation for the above option is:
The ribosome is located either free or is connected to the endoplasmic reticulum(RER).Ribosomes assist in the translation of the information from mRNA.Polysomes are numerous ribosomes connected to a single mRNA molecule.Ribosomes have one binding position for mRNA and three binding positions for tRNA molecules.The three binding sites for tRNA is (A- site) amino acyl site, (P-site) peptidyl site and (E site) the exit site.Ribosome assembles amino acids to form a polypeptide chain. These polypeptides get transported to the cytoplasm.Therefore all the above statements are true for ribosomes.
To learn more about ribosomes follow the given link:
https://brainly.com/question/19899938
What should you do if you get chemicals in your eyes?
A. Wipe off your eyes with a napkin.
B. Put on safety goggles and keep working
C. Finish your experiment before doing anything about it.
D. Tell your teacher and use the eye-wash station.
Answer: D is the answer
Which genotype is written incorrectly? AaAP pApr iiYy
are human skin cells from inside the mouth prokaryote or eukaryotic?
Answer:
Eukaryotic
Explanation:
Convert to find the volume in liters.
PLS HELP ANYONE!!
not sure need help
Answer:
D. Organic Matter is the correct answer
What causes sediments to stick together and become sold rock?
A. Fossils
B. Soil texture
• C. Pressure
D. Humus
Answer:
C. pressure is correct
Explanation: