How many sperm are produced by the average human male.
Answer:
In fact, the average male will produce roughly 525 billion sperm cells over a lifetime and shed at least one billion of them per month. A healthy adult male can release between 40 million and 1.2 billion sperm cells in a single ejaculation.
Which of the following statements reflects a cognitive characteristic that is present during late adulthood? a. during late adulthood, one is full of knowledge and wisdom. b. during late adulthood, one pursues new challenges. c. during late adulthood, one reflects on changes and mortality. d. during late adulthood, one has a better sense of identity.
The statement that reflects a cognitive characteristic that is present during late adulthood is, During late adulthood, one is full of knowledge and wisdom. So, the correct option is A.
What do you mean by Cognitive Characteristics?Cognitive characteristics may be defined as an immersive and active process that engages your senses in a constructive and long-lasting way.
Cognitive characteristics teach you to maximize your brain potential and make it easier to connect new information and ideas during late adulthood.
Therefore, the statement that reflects a cognitive characteristic that is present during late adulthood is, During late adulthood, one is full of knowledge and wisdom.
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Answer:
a. during late adulthood, one is full of knowledge and wisdom.
Explanation:
PLS HELP!!!!! after you eat a meal, the food gets broken down into its component parts through digestion. Order the words to describe the path that food takes as it moves along the digestive system. Place the first step at the top and the last step at the bottom.
saliva
chewing
small intestine
stomach
peristalsis
Answer:
chewing
saliva
peristalsis
stomach
small intestine
Explanation:
first, you chew the food. At that time the food gets mixed with your saliva then after u swallow it, it goes to your stomach through peristaltic movement then into ur small intestine.
hope it's helpful!
You are a sports dietitian working with athletes at a local high school. An athlete comes to you and asks about dietary supplements to increase their vitamin intake. What would be your primary message regarding vitamin supplements for athletes?
a. It is unlikely your vitamin needs are significantly increased above the Dietary Reference Intakes (DRI) and a vitamin supplement may not be necessary, but a dietary assessment may reveal vitamin deficiencies.
b. You should consume vitamin supplements to reach the tolerable upper intake level for each vitamin.
c. It is necessary to consume vitamin supplements as an athlete.
d. All athletes have vitamin deficiencies and should consume vitamin supplements on a regular basis.
It is unlikely your vitamin needs are significantly increased above the Dietary Reference Intakes (DRI) and a vitamin supplement may not be necessary, but a dietary assessment may reveal vitamin deficiencies is the best message for the athlete.
What is Dietary Reference Intakes?This is defined as a set of reference values used to plan and assess nutrient intakes of healthy people.
Vitamin needs in the body aren't increased above the reference intakes and so intake of supplement isn't a necessity.
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Habitat ______ imposes fluctuations in availability of basic needs such as food and water upon organisms.
Answer: Habitat variability imposes fluctuations in availability of basic needs such as food and water upon organisms.
Which of the following is not a way that nonnative organisms are introduced to new aquatic ecosystems related to commerce? a. cargo ship hulls b. recreational boats c. escape from aquariums d. migration please select the best answer from the choices provided a b c d
The correct option is "D" Migration.
Since the term aquaculture mainly refers to the cultivation of aquatic organisms in controlled aquatic environments for any commercial, recreational or public purpose. whereas external organisms are added to an ecosystem in order to raise their number keeping in mind the availability of food for them.
For the creation of new aquatic ecosystem cargo ship hulls, recreational boats, organisms escaping from the aquariums can be useful as these methods are non-natural and are disturbing the original productivity and stability of the ecosystem.
What is migration?Migration is a natural phenomenon in which non-native organisms move to another habitat in search of food required for survival.
Thus, Migration is not a way that nonnative organisms are introduced to new aquatic ecosystems related to commerce.
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Answer:
D. Migration
Explanation:
Aqua culture is the phenomena for rearing fish and other aquatic organisms with high commercial value for food production. Non- native organisms are added in an ecosystem in order to raise their number keeping in mind the availability of food for them. For creation of new aquatic ecosystem cargo ship hulls, recreational boats, organisms escape from the aquariums can be useful as these methods are non- natural and they are disturbing the original productivity and stability of ecosystem by introducing nonnative organisms to new aquatic ecosystem. But migration is a natural phenomena in which non-native organisms move to other habitat in search for food and habitat required for survival.
GOT IT RIGHT, HOPE THIS HELPS!
RNA polymerase is said to have high _____, meaning that it can catalyze thousands to millions of reactions without releasing the DNA template
Answer:
processivity
explanation
RNA polymerase is said to have high processivity, meaning that it can catalyze thousands to millions of reactions without releasing the DNA template
RNA polymerase is said to have high A) processivity, meaning that it can catalyze thousands to millions of reactions without releasing the DNA template.
Processivity refers to the ability of an enzyme to remain attached to its substrate and catalyze multiple consecutive reactions without dissociating. In the case of RNA polymerase, it is responsible for synthesizing RNA molecules by using a DNA template.
RNA polymerase exhibits high processivity, meaning that once it binds to the DNA template, it can catalyze the formation of RNA molecules for an extended period without releasing the DNA template. This allows for the efficient synthesis of long RNA strands.
During transcription, RNA polymerase moves along the DNA template, unwinding the DNA double helix and adding complementary RNA nucleotides to the growing RNA chain. It remains attached to the DNA template throughout this process, continuously elongating the RNA molecule.
The high processivity of RNA polymerase is essential for the accurate and efficient transcription of genes. It ensures that the RNA molecule is synthesized without interruptions or premature termination. This processivity allows RNA polymerase to transcribe entire genes or long stretches of DNA without dissociation, facilitating the synthesis of functional RNA molecules.
Overall, the high processivity of RNA polymerase contributes to the fidelity and efficiency of transcription, allowing for the synthesis of RNA molecules that faithfully represent the information encoded in the DNA template.
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The complete question is:
RNA polymerase is said to have high _____, meaning that it can catalyze thousands to millions of reactions without releasing the DNA template
A) processivityB) continuityC) fidelityD) stabilityE) connectivityChoose the BEST paraphrase of this text:
Black holes are extremely compact space objects that were once massive stars.
A) Black holes are super tiny space things that used to be big old stars.
B) Black holes are extremely compact space objects that were once massive stars.
C) Massive stars are extremely compact spaces objects that were once black holes. D) The extremely small objects in space that at one time were enormous stars are called black holes. Hint Communication (2.3) Quote Or Paraphrase ID: 55394
Answer:
D
Explanation:
The extremely small objects in space that at one time were enormous stars are called black holes.
What component of Earth's atmosphere exists entirely as a result of photosynthesis?
O oxygen gas
O water vapor
O nitrogen gas
O carbon dioxide gas
Answer:
oxygen gas
Explanation:
because oxygen is needed for life on Earth
What is the function of DNA? It takes the message of the amino acid order for proteins to the cytoplasm, where the protein will be built. It serves as an enzyme to speed up many kinds of biochemical reactions in the cell. It builds proteins from amino acids using the instructions stored in RNA. It stores in the nucleus the information a cell needs to make its proteins with the right orders of amino acids.
Answer: The answer is B. (It stores in the nucleus the information a cell needs to make its proteins with the right orders of amino acids.)
Explanation: I took the test and this was the answer! :)
The function of DNA (deoxyribonucleic acid) is to store and transmit genetic information from one generation to the next, and it stores in the nucleus the information a cell needs to make its proteins with the right orders of amino acids. That is the last option.
What is DNA?DNA is a molecule composed of long chains of nucleotides. A nucleotide is made up of three components: a sugar molecule, a phosphate group, and a nitrogenous base. The process of gene expression begins with the transcription of DNA into RNA (ribonucleic acid). RNA is a molecule similar in structure to DNA but with a few key differences, such as the presence of the nitrogenous base uracil (U) instead of thymine. DNA also plays a role in the regulation of gene expression. Certain regions of DNA, called promoters and enhancers, help to control when and where a gene is expressed.
Hence, it stores in the nucleus the information a cell needs to make its proteins with the right orders of amino acids. That is the last option.
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PLS HELP When a forensic scientist needs to quickly identify a drug without first separating the substances, which test would be MOST useful?
spectrophotometry
gas chromatography
microcrystalline
narcotic
Answer:
A spectrophotometry test
Explanation:
I say this because a spectrophotometry test will give you information in a relatively fast time.
The visible portions of ultraviolet light are measured by UV spectrophotometers, which are useful for determining the concentrations of active components in pharmaceutical substances as well as for checking for contaminants. Thus, option A is correct.
What is the importance of spectrophotometry in drug?In biochemistry and molecular biology, spectrophotometry analysis is frequently used to estimate the concentration of biomolecules in a solution.
Spectrophotometers are used in clinical laboratories for a variety of tasks, including quantitative analysis, kinetics, spectrum scanning, and multiple component DNA/protein testing.
There are several spectrophotometers available from reputable firms in the field.
Therefore, When a forensic scientist needs to quickly identify a drug without first separating the substances, a spectrophotometry test would be most useful.
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What do you know about climate? causes and impacts?
Answer:
small thing about climate change
Explanation:
Climate Change is trapping Co2 into the earth's atmosphere, raising the temperature of the Earth. Because of that, it's melting the Antarctic and killing millions of animals. Not only that, but it's also causing droughts, and usually droughts are the cause(s) of famine which kill millions of not only animals, but humans too.
1)Explain what DNA means
2)Explain the 3 components of DNA (Pentose Sugar, Phosphate, Nitrogenous Bases)
3)Explain the 2 types of Nitrogenous bases (Purines vs. Pyrimidines)
4)Explain Chargaff's rules for base -pairing
5)Identify what objects/colors you used for your DNA Model
(Ex Key A=Red T= Green etc.)
Phosphate group = toothpick end
6)Twist your model and explain how it is a helix
7)Explain how Muslims can understand DNA from the Islamic Worldview
Answer:
DNA
DNADNADeoxyribonucleic acid is a polymer composed of two polynucleotide chains that coil around each other to form a double helix carrying genetic instructions for the development, functioning, growth and reproduction of all known organisms and many viruses. DNA and ribonucleic acid are nucleic acids.
2) (i) A pentose sugar is a monosaccharide with 5 carbon atoms. Pentose sugars are the deoxyribose sugars, which are part of nucleotides in DNA
(Ii) a phosphate is an anion, salt, functional group or ester derived from a phosphoric acid. It most commonly means orthophosphate, a derivative of orthophosphoric acid H ₃PO ₄. The phosphate or orthophosphate ion [PO ₄]³⁻ is derived from phosphoric acid by the removal of three protons H⁺
Formula: PO₄³⁻
Molar mass: 94.9714 g/mol
3D model (JSmol): Interactive image; Interactive image; Interactive image; Interactive image
Beilstein Reference: 3903772
Conjugate acid: Monohydrogen phosphate
Gmelin Reference: 1997
(III) Nucleobases, also known as nitrogenous bases or often simply bases, are nitrogen-containing biological compounds that form nucleosides, which, in turn, are components of nucleotides, with all of these monomers constituting the basic building blocks of nucleic acids.
3) purine nitrogenous bases:-
Purines and Pyrimidines are nitrogenous bases that make up the two different kinds of nucleotide bases in DNA and RNA. The two-carbon nitrogen ring bases (adenine and guanine) are purines, while the one-carbon nitrogen ring bases (thymine and cytosine) are pyrimidines.
pyrimidine nitrogenous bases
Pyrimidine: A nitrogenous base similar to benzene (a six-membered ring) and includes cytosine, thymine, and uracil as bases used for DNA or RNA.
The pyrimidine bases are thymine (5-methyl-2,4-dioxipyrimidine), cytosine (2-oxo-4-aminopyrimidine), and uracil (2,4-dioxoypyrimidine)
4) Explain Chargaff's rules for base -pairing
Chargaff's rules state that DNA from any species of any organism should have a 1:1 stoichiometric ratio of purine and pyrimidine bases (i.e., A+G=T+C ) and, more specifically, that the amount of guanine should be equal to cytosine and the amount of adenine should be equal to thymine.
5)Identify what objects/colors you used for your DNA Model
The four nitrogenous bases that compose DNA nucleotides are shown in bright colors: adenine (A, green), thymine (T, red), cytosine (C, orange), and guanine (G, blue).
6)Twist your model and explain how it is a helix
Double helix is the description of the structure of a DNA molecule. A DNA molecule consists of two strands that wind around each other like a twisted ladder. Each strand has a backbone made of alternating groups of sugar (deoxyribose) and phosphate groups.
The double helix of DNA is, like its name implies, in the shape of a helix which is essentially a three dimensional spiral. The double comes from the fact that the helix is made of two long strands of DNA that are intertwined—sort of like a twisted ladder.
what is auto and factory emissions
I will write essay, but need the 3 reasons why.
In this activity, you will need to analyze the reasons that people give for smoking. This may be done by interviewing some people you know that smoke or by going online and researching reasons persons give for smoking.
Below, in the downloadable essay, list three reasons why people smoke. Weigh each reason against the facts. In other words, prove that the reasons not to smoke far outweigh the reasons to smoke. Information on smoking can be found at the Centers for Disease Control and Prevention (CDC).
CDC Information on Smoking and Tobacco Use
1. Reason:
Opposing Argument/Contradictory Facts:
2. Reason:
Opposing Argument/Contradictory Facts:
3. Reason:
Opposing Argument/Contradictory Facts:
Answer:
Some reasons that people give for smoking:
> they believe it reduces stress and anxiety ( scientific studies show this isn't factual and the chemicals within smoking products is only made appealing and or distracting to make the user believe so. It actually heightens stress levels and lowers health levels)
> this sounds cliche but, teens often think its cool or get peer pressured into it. They find themselves wanting to try harmful substances and get addicted. ( in one study there were d r u g s found in smoking products aimed to get the attention of children and young adults. It's all a marketing ploy for business men and women to collect money as you slowly grow more and more breathless)
> lastly, "it's not that bad for you" often, markets and cig stores tell potential buyers its not as bad as other things. Some say its not harmful at all.( Lung disease,gum disease,heart failure,etc. all disprove this. Each year about 480,000 people die from the affects of smoking)
Explanation:
Please help!!! I’ll mark brainly
Answer:
2. b
3. B
4. BB, Bb, bb
5. bb
6.Bb, BB
7.Bb
(couldn't answer the whole question, sorry)
what happens when oil can hold any more heat energy
Answer:
Explanation:
oil constitutes a major storage for heat, acting as a reservoir of energy during the day and source of heat to the surface at night. The soil stores energy during the warm season and releases it to air during the cold season Geiger et al.
Use a protractor to draw a parallelogram that has two side lengths of 5 inches and 2 inches and two adjacent angles that measure 25° and 155°.
What are the measures of the other two angles in the parallelogram?
a25° and 130°
b25° and 155°
c130° and 155°
d130° and 170°
If the adjacent angles of a parallelogram measure 25° and 155°, the other two angles would measure 25° and 155°
What is a parallelogram?
A parallelogram is a quadrilateral (has four sides and four angles) in which both sides are equal and parallel to each other. Opposite angles of a parallelogram have the same measure and the diagonals are equal in length.
If the adjacent angles of a parallelogram measure 25° and 155°, the other two angles would measure 25° and 155° because opposite angles are equal.
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Answer: The answer is 25 and 155
Explanation:
Irregular respirations characterized by an increasing rate and depth of breathing followed by periods of apnea are called
Irregular respirations characterized by an increasing rate and depth of breathing followed by periods of apnea are called Cheyne-Stokes respiration. It is an abnormal respiration cycle.
What is Cheyne-Stokes respiration?The Cheyne-Stokes respiration is an abnormal type of respiration cycle characterized by apnea.
Cheyne-Stokes respiration refers to an unnatural manner of breathing that is generally associated with sleep.
Cheyne-Stokes respiration is characterized by fast abnormal breathing cycles and then slow apnea abnormal breathing cycles.
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In people, the allele for brown eye color (B) is dominant over the allele for green eye color (b), and the allele for brown hair color (H), is dominant over the allele for having red hair color (h). (6F) What is the expected phenotypic ratio of the offspring of a BbHh x BbHh cross if these alleles sort independently?
A) 4 brown/brown : 4 brown/red : 4 green/brown : 4 green/red
B) 12 brown/brown : 1 brown/red : 2 green/brown : 1 green/red
C) 9 brown/brown : 3 brown/red : 3 green/brown : 1 green/red
D) 16 brown/brown : 0 brown/red : 0 green/brown: 0 green/red
Answer:
C) 9 brown/brown : 3 brown/red : 3 green/brown : 1 green/red
A key step in developing a new explanation is:______.
a. making observations about a place or process.
b. asking questions about the observations.
c. proposing an interpretation that can be tested.
d. collecting new observations to test predictions.
e. All of these choices are correct.
A key step in developing a new explanation is c. proposing an interpretation that can be tested.
What steps are involved in having a hypothesis become an established theory?A U.S. government agent votes on whether the belief is taken. A United Nations scientific forum votes on whether the belief is taken. The hypothesis is constant with further data and probes used to test its forecasts.
Thus, option "C" is correct.
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True or False: Ribosomal RNA is processed after transcription by cleaving and trimming of the molecule.
Answer:false
Explanation: because it occurs in the nucleus
QUESTION 14
The haploid number of chromosomes of a palm tree is 30. The number of chromosomes in root, stem, and leaf cells would be
a. 10.
b 20.
c. 30.
d. 40.
e. 60.
Homeostatic ______ occurs when there is a disturbance in one or more of the body’s systems.
Answer:
Imbalance is your answer, mate!!!
Explanation:
Homeostatic imbalance occurs when the human body’s internal environmental variables become disturbed.
Does this answer your question?
what is the difference between fats and oil ?
Answer:
fats are made up of high levels of saturated fatty acid that take form at room temperature and oils are made up of mostly unsaturated fatty acid which are liquid at room temp
Descube what scientist know about exoplanets, planet-like object outside the solar system.
Answer:
Exoplanets are planets beyond our own solar system. Thousands have been discovered in the past two decades, mostly with NASA's Kepler Space Telescope. These worlds come in a huge variety of sizes and orbits. Some are gigantic planets hugging close to their parent stars; others are icy, some rocky.
Which of the options is circled in this electron micrograph?.
Two double stranded DNA is circled in the electron micrograph.
What is a DNA?This is referred to as Deoxyribonucleic acid and has a double helix structure which carries genetic instructions in all living things.
In the electron micrograph, the diagram seen is that of two double stranded DNA which was why option A was chosen as the most appropriate choice.
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The picture below shows a tropical rainforest. The temperature in the rain forest is always warm, day and night. This environment contains many green plants and receives a lot of rain.
Which kind of plant or animal would be found in this environment?
A)a mammal that has thick fur year-round
B)a plant that needs little water to survive
C)a vine that grows up a tree to get sunlight
D)an animal that feeds on grasses and wheat
Answer:
Temperature. The rainforest biome remains warm all year and must stay frost-free. The average daily temperatures range from 20°C (68°F) to 25°C (77°F).
Explanation:
this does not tell u the answer but i hope it helps in some way
Missing picture of the tropical rainforest.. Thus, I will try my best to help.
Answer:
D)an animal that feeds on grasses and wheat
Explanation:
Let go over all the answer choices:
A) a mammal that has thick fur year-round
Knowing that :
Temperature is always warm.. Thus, a mammal that has a thick fur year-round can't survive in this kind of place.
=================================================================
B)a plant that needs little water to survive
Knowing that:
This environment receives a lot of rain.. Thus, This type of plant can't survive in this kind of place
=================================================================
C)a vine that grows up a tree to get sunlight
Knowing that:
Since it receives a lot of rain.. Thus, it may not get sunlight..
=================================================================
D)an animal that feeds on grasses and wheat
Knowing that:
This environment contains many green plants
thus, this may be the best answer.
[RevyBreeze]
What organism has been found in the oldest fossils?.
Answer:
cyanobacteria
Explanation:
The cyanobacteria have an extensive fossil record. The oldest known fossils, in fact, are cyanobacteria from Archaean rocks of western Australia, dated 3.5 billion years old.
which of the following species are most likely to be in competition
a) tigers and Ferns
b)Bears and reccoons
c) Files and rabbits
d) Lynx and Squirrels