Answer:
A shortcut may provide a faster reaction
Explanation:
Chemical reactions occur in a particular manner and speed if allowed to occur normally. However, shortcuts can be used for the essence of making the reaction proceed much faster than it naturally would. Catalysts are the substances used to provide these shortcuts.
A catalyst is a substance that increases the rate at which a chemical reaction occurs without being chemically used up in the reaction. A catalyst speedens up the chemical reaction by decreasing the activation energy. The activation energy is that energy needed for a chemical reaction to kick start. The higher the activation energy, the slower the reaction proceeds.
A catalyst, thus, creates a shortcut by lowering the activation energy of the chemical reaction, allowing it to proceed faster than when a catalyst is not used.
Answer:
B
Explanation:
Edge 2020
Which component of Earth’s atmosphere is decreased due to photosynthesis? ozone oxygen hydrogen peroxide carbon dioxide
Answer:
The answer is carbon dioxide
Hope this helps you
Answer:
carbon dioxide
Explanation:
Drag each label to the correct location on the diagram.
Label the parts of the brain.
cerebrum
thalamus
hypothalamus
brain stem
cerebellum
medulla
oblongata
midbrain
pons
Answer:
Left side: 1-cerebellum 2-hypothalamus 3-pons 4-medulla oblongata
Right side: 1-thalamus 2-midbrain 3-cerebrum 4-brain stem
Explanation:
The correct labelling is
Left side: 1-cerebellum 2-hypothalamus 3-pons 4-medulla oblongataRight side: 1-thalamus 2-midbrain 3-cerebrum 4-brain stemWhat is a Brain?This refers to the part of the body that is responsible for the overall coordination of the body system.
Here, we can see that we need to label correctly the given answer choices according to their positions on the left and right side of the brain and they have been done above.
Read more about cerebellum here:
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If everyone on the planet used the same amount of
resources as an average American, what percent of
the Earth would need to be used to support
everyone?
A. 150%
B. 75%
C. 200%
D. 50%
Answer:
While Americans constitute the 5% of the world population, they use around the 24% of the world's energy.
Then, if the 100% of the population were like the Americans, we have:
5%*x = 100%
x = 100%/5% = 20
the whole population is 20 times the population of the US, then the total energy used is 20 times the energy used in the US.
Then the energy that the 100% of the population would use is equal to:
20*24% = 480%
Sowe actually would need like 5 Earths.
So none of the options is matches this, but this may be because this question is about some specific resources and not for the specific energy used. The closest option is 200%
Answer:
the answer is 150 percent
Explanation:
just took the quiz
A_____ Cell is one that has one copy of each chromosome
Answer: Haploid
Explanation:
A Haploid cell that has only one copy of each chromosome which can be paternally or maternally-derived
I hope this helped
Wildlife experts may attempt to restore the population of an individual species ?
by changing the food web of the ecosystem.
by moving the species to a rain forest.
through captive breeding.
by introducing an exotic species into the population.
Answer:
C
Explanation:
through captive breeding. Once they are breed, they should be released
What factor determines how much linoleic acid can twist and bend its shape?
A. The weight of the molecule
B. The number of carbon-hydrogen bonds
C. The length of the molecule
D. The number of carbon-carbon double bonds
How do mutations occur
Answer:
Mutations can occur when a strand of DNA copies itself during cell division.
Mutations can lead to many disorders, and can be damaging.
Hope this helped! :)
Answer:
Mutations can occur when DNA replication errors are made or not made in time
Explanation:
Identify characteristic of alcohol. a. It is a key ingredient in dietary supplements. b. It provides water but not calories. c. It enhances the repair of body tissues. d. It provides calories. e. It is an essential nutrient.
When doctors hear the details of an autopsy and then learn of the deceased person's diagnosis, they often believe that they could
have predicted the diagnosis. This is an exullnple of the bias.
a. misconception
b. research
c. hindsight
d. commonsense
Answer:
c. hindsight
Explanation:
Hindsight bias is a term used in psychology to explain the tendency of people to overestimate their ability to have predicted an outcome that could not possibly have been predicted.
If the number of photosynthetic organisms on the earth decreased drastically, which would happen as a result? Less water would be available on the earth’s surface. Less solar energy would reach the earth’s atmosphere. More oxygen gas would be found in the atmosphere. More carbon dioxide gas would be found in the atmosphere.
Answer:
More carbon dioxide gas would be found in the atmosphere.
Explanation:
Photosynthetic organisms convert carbon dioxide in air to oxygen through photosynthesis, while other non-photosynthetic organisms only consume oxygen and release carbon dioxide through respiration, they do not undergo photosynthesis.
When the number of photosynthetic organisms on the earth decreased drastically, the carbon dioxide released from other non-photosynthetic organisms cannot be converted to oxygen, so carbon dioxide in air accumulates.
Mendel’s pea plants had either purple or white flowers. This means that the plants can self-pollinate. have two recessive traits. have two alleles for the gene. have two copies of a gene from one parent.
Answer:
I think it's that they have two alleles for the gene
The statement that Mendel’s pea plants had either purple or white flowers means that the plants have two alleles for the gene.
MENDEL'S LAW:Gregor Mendel is regarded as the Father of genetics due to his immense contribution to knowledge of genetic inheritance.
According to Gregor Mendel, a gene consists of two alleles, which individually encode different phenotypes of a particular trait.
In this question involving flower color gene, two alleles coding for purple (P) and white color (p) are present in the gene.
Learn more about alleles at: https://brainly.com/question/2973829
What additional evidence
do we have today that
supports Darwin's theory?
A. Cell theory
B. DNA and molecular evidence
C. Process of photosynthesis
D. Method of protein synthesis
Answer: The answer is A cell theory.
Explanation: For our cells to be as developed and complex as they are today a huge evolutional process was necessary. This process is explained in the cell theory
DNA and molecular evidences are the additional evidences to support Darwin's theory. The correct option is B.
What is Darwin's theory?According to Darwin's theory, all species of organisms emerge and develop through natural selection of slight, inherited variations that significantly raise the individual's capacity to compete, stay alive, and reproduce.
It is backed up by research from a wide range of scientific disciplines, as well as genetics, which shows that DNA from different species is similar.
Fossils, embryological studies, anatomical and morphological characteristics, and molecular biology are examples of evidence that support the theory of evolution by comparing DNA sequences.
Thus, the correct option is B.
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8) The plasma membrane is composed of a double layer of molecules called
molecules, which have a
head and 2
tails pointing toward each other. The mechanical stability of the membrane lies with
molecules. The protein molecules function in
and
Answer:
Your answer would be Phospholipids
Explanation:
The phospholipid bilayer that makes up the plasma membrane has hydrophobic tails and polar heads that face each other to repel water.
What is a plasma membrane?The membrane that divides the inside of the cell from the external environment is known as the plasma membrane, sometimes known as the cell membrane, and it is present in all cells.
A cell wall is affixed to the plasma membrane on the outside of both bacterial and plant cells. The plasma membrane is made up of lipids and proteins, much like every other cellular membrane.
Therefore, the phospholipid bilayer, which creates a permanent barrier between two aqueous compartments, is the membrane's basic structural component.
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What is your hypothesis for the numbers of each phenotype after 32 fertilizations (HINT: Use a Punnett square to come up with the ratio and then determine how much of each if you have 32 individuals.)
Answer:
I need more clarification on what to use in the punnet square
Explanation:
What is the range for the following set of measurements?
27°C, 12°C, 31°C, 19°C, 23°C, 11°C, 17°C
A. 0°C to 100°C
O B. 27°C to 17°C
O c. 1°C
D. 11°C to 31°C
Answer:
the range of the following set of measurement is D option
Which statement describes a parasite?
• A parasite is beneficial to its host.
O Aparasite is harmed in its relationship with the host.
A parasite only benefits when the host is alive.
A parasite always kills its host and takes all the nutrients.
Please if anyone could answer this question? Will mark brainliest!!
Explain the process of gaseous exchange in the alveoli of the lungs.
Answer: Gas exchange takes place in the millions of alveoli in the lungs and the capillaries that envelop them. Inhaled oxygen moves from the alveoli to the blood in the capillaries, and carbon dioxide moves from the blood in the capillaries to the air in the alveoli.
Answer:
carbon dioxide moves from the blood in the capillaries to the air in the alveoli.
Explanation:
*ANSWER ASAP TY*
Rainforests are destroyed so cash crops can be planted. What are cash crops?
a.) plants that grow slowly and are sensitive to moisture
b.) plants that are grazed by cattle
c.) plants that produce flowers that resemble money
d.) plants that grow quickly and have many uses
Rainforests are dense and canopied trees rich in biodiversity. They are destroyed to plant the cash crops that grow quickly and have various uses. Thus, option D is correct.
What are cash crops?Cash crops are plants that grow rapidly and have many uses that benefit the economy. They are planted mainly for selling purposes and to make a profit.
Cash crops like sugar cane, tomatoes, cotton, tea, coffee, etc. are planted to make a profit and earn money and differ from the agricultural crops as they are planted generally for sale purposes.
Therefore, cash crops are fast-growing crops.
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Which bone is indicated by the arrow in the diagram below? A diagram showing the appendicular skeleton. An arrow points to the bone in the lower arm closest to the body. humerus ulna radius clavicle
Answer:
ulna
Explanation:
The ulna runs parallel to the radius in the lower arm.
The ulna is in line with your pinky finger and is the bone closest to the body. The radius is in line with your thumb and allows you to rotate your wrist.
Hope that helps.
Please answer this biology question
Answer:
1. The objective lenses on a compound light microscope sample can be magnified either, 40x, 100x or 400x as it does have powers 4x, 10x, and 40x on the maximum power setting.
At 40x magnification Stella will see cell upto 5mm.
At 100x magnification Stella will be able to see cell and cell components upto 2mm.
At 400x magnification Stella will be able to see cell and cell structures more closely, 0.45mm, or 450 microns.
2. The white blood cells are stained here in purple and can be identified with their shape and size of nucleus in comparison to the red blood cells have bioconcave shape and smaller to the wbc, but the function of white blood cells does not allow them to have a set shape. And the white transparent part are platelets.
A wave is known to have a frequency of 20 Hz and wavelength of 0.5 m. Find the velocity of this wave.
Answer:
take 20 * 0.5 to get 10 m/s
Explanation:
3. Were you able to restore the land? Why or why not?
Answer:
yes yes I was
Explanation:
I invested with money for crops and bammo bingo land back!!!
Which process produces human egg and sperm cells?
Answer:
Hey there! Your answer will be below.
Explanation:
The answer to your question is gametogenesis or meiosis ( which produces gametes....From meiosis it becomes or forms into gametes.)
So the answer should be gametogenesis/ meiosis....
Hope that helps!
By: xBrainly
Meiosis or gametogenesis is the process that produce human egg and sperm cell.
What is meiosis?Meiosis is a type of reproduction in which a parent cell divide into four daughter cells that are genetically different from the parent cell. The daughter cells have half number of chromosome of the parent cell.
This process produce the gametes which are the sperm cell and egg cell.
Therefore, Meiosis or gametogenesis is the process that produce human egg and sperm cell.
Learn more about meiosis below.
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What is the effect of the inheritance of one trait on the inheritance of a second trait?” with a hypothesis. Remember that you can either assume that the two genes are independent or that they are linked. What results would you expect in either case?
Hypothesis:
Which statement is true for photosynthesis? Producers use it. Consumers use it. Scavengers use it. Decomposers use it.
Answer:
A. producers use it
Explanation:
Answer:
A
Explanation:
When two different alleles are dominant and determine the phenotype, this is an example of what?
co-dominance
complete dominance
incomplete dominance
None of the above
Answer:
Complete Dominance
Explanation:
This is complete dominance because both of the alleles are dominant, and there are no recessive alleles :)
What is the nature Conservancy? a.An organization that collects resources to buy land and establish Nature preserves b.And organization that rescues Endangered species c. And organization that runs breeding programs for endangered species d.An agency of the EPA that manages wilderness areas
Dr. Asfour is telling his participants before he begins the experiment that their participation is completely voluntary and that they
can stop taking part at any time. Dr. Asfour is:
a, providing peer review.
b. debriefing his participants.
c. obtaining informed consent.
d. performing random assignment.
Answer:
c. obtaining informed consent.
Explanation:
im not 100 sure tho
During the transmission of signals across a neuromuscular junction, which of the following happens first?
A. Acetylcholine binds to a receptor protein on the motor end plate
B. The sodium and potassium ion gates on the motor end plates open
C. Synaptic vesicies release acetylcholine molecules
D. Synaptic vesicles move toward the axon terminals
Answer:
D. Synaptic vesicles move toward the axon terminals.
This happens at first
What does Saccharomyces cerevisiae (Baker’s yeast) need to survive?
Answer:
Food (Sugars)
Explanation:
S. cerevisiae feeds on sugars for energy, in the process producing carbon dioxide and alcohol (this is fermentation in a nutshell). The carbon dioxide bubbles get trapped in the dough, creating the lift that makes the dough rise. The alcohol, meanwhile, evaporates when baking, transforming into gas that also contributes to the rise of the bread. The alcohol, along with acids produced during the fermentation process, impart that wonderful flavor and aroma associated with yeast-leavened breads.