Answer:
im kinda okay
Explanation:
what do you need help on?
Answer:
Ok I will also hepl.
Explanation:
What is your question
Vacuoles are cellular organelles that are found in all plant and fungal cells. In plant cells, vacuoles tend to store large amounts of water, so they can push outward on cell walls and help keep plants upright. In fungal cells, vacuoles often store materials that are toxic to the cell.
According to the above information, how do vacuoles help fungal cells maintain homeostasis?
A.
by storing large quantities of water
B.
by allowing the cells to get rid of waste
C.
by producing more cellular organelles
D.
by helping the cells extract energy from food
Answer:
D. by helping the cells extract energy from food
Explanation:
Fungi are decomposers so they normally need some sort of food to grow. To get the energy to grow, they extract it from the food. Fungi will get their energy from dead animals, dead plants, etc.
Compare cladistics with Linnaeus's classification
Over 400 years ago, the bark of the cinchona tree was discovered to contain a chemical compound called quinine. Quinine was, and still is, used to cure and prevent malaria. This is an early example of ____________________.
a. biotechnology
b. scientific modeling
c. genetic engineering
d. genomics
Answer:
A.
Explanation:
Scientific developments have made forensic science a stronger discipline.
True
False
Answer:
Answer of this qurstion is true
Pls help me and thank youuuu
What reflex kicks in if your epiglottis reflex malfunctions?
Answer:
The coughing reflex kicks in, only if the epiglottis reflex fails to. If the coughing reflex fails then the Heimlich maneuver may be needed.
What are some skills that scientists must have to be successful?
Answer:
they have to be smart
Explanation:
...........
Answer:
They need to be creative, logical, analytical, and good at communication.
Explanation:
hope this helps!
Which of these molecules would form a single covalent bond?
Group of answer choices
Na3N
NaCl
KCl
Cl2
Answer: Cl2
Explanation:
3. Which type(s) of cells have genetic material that is contained in a nucleus?
A. bacterial
B. plants only
C. animals only
D. both plant and animal cells
Answer:
D. Both plant and animal cells
Explanation:
The explanation is that animal and plant cells are eukaryotic cells which means they have a nucleus which contains and protects the genetic material. Bacteria is a prokaryotic cell which means it does have genetic material but doesn't have a nucleus.
The air outside is so warm that this snowman is melting. During melting, the water molecules (gain/lose) thermal energy. How does the motion of the molecules change during melting?
Answer:
they gain thermal energy because they are warming up. the molecules are speeding up because liquid molecules are faster the solid molecules which don't move much.
Explanation:
Inside a human stomach, hydrochloric acid is important in digestion. Which reason best explains why the enzymes found in other parts
of the body would not function well in the stomach?
a. The temperature is too high
b. There is not enough water
C. The pH is too acidic
d. There are not enough substrates
Answer:
C. The pH is too acidic
Explanation:
Many acids and bases in living things are secreted to provide the proper pH for enzymes to work properly. Enzymes are biological catalysts, such as pepsin, which is needed to digest protein in the stomach and requires an acidic environment.
Which of the following individuals is true-breeding for all traits? A. RrYY B. RRYy C. RRYY D. RrYy ellus Corporation. All Rights Reserved.
The true breeding individual for all traits is RRYY.
What is True breeding ?A true-breeding organism, sometimes also called a purebred, is an organism that always passes down certain phenotypic traits to its offspring of many generations. This means that the parents are homozygous for every trait.
Since RRYY is homozygous for all traits, it will be a true breeding organism if crossed over with another RRYY organism. This is because all the off-springs produced from this cross will also be RRYY that is purebred.
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Which of the following would not be considered a microhabitat?
a
a rotting log
b
an ant hill
c
the Amazon rainforest
d
your back yard
Answer:
D. your backyard
Explanation:
A microhabitat is a small area which differs somehow from the surrounding habitat. Its unique conditions may be home to unique species that may not be found in the larger region and the backyard does not relate to this definition
You leave a cracker in your mouth for 7 minutes without chewing. Hormones signal amylase to be released in your mouth and the cracker begins to dissolve. Which to systems ane being used in this scenario?
A.Endocrine & Immune
B.Digestive and Skeletal
C.Endocrine & Digestive
D.Digestive and Excretory
What option would be a good adaptation for an animal in a dense RAINFOREST? *
A. heavy body
B. ability to sprint
C. ability to blend with multiple colors and patterns
Answer:
c because they need to live instead of dying. bc from other bigger animals they can see it and eventually die so.
If a 25 kg car accelerates at a speed of 100m/s2,2 what will the force of the car be? Plug in the numbers: Force = mass x acceleration
1 point
7.A tree has organs that carry out specific functions needed for survival.
What function do the tree's leaves carry out? *
A)act as reproductive structures
B)capture sunlight to make food
C)take in dissolved minerals
D)anchor the tree underneath the soil
Answer:
C sorry if im wrong
Explanation:
.
How could you use the treated wastewater to recharge the aquifer?
Answer:
QUESTION:
How could you use the treated wastewater to recharge the aquifer?
ANSWER:
Treated wastewater could be used to recharge the local aquifer by discharging the treated water into an area with permeable sediments that overlies the aquifer. The treated wastewater would flow through the permeable sediments and into the aquifer, from which it could be pumped again for use in homes and businesses.
Explanation:
I hope that this helps you out! :)
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HELP ILL GIVE BRAINLIEST!!! Genetic variation led to to one plant surviving and reproducing when the other did not. This variation was in... *picture also attatched
Answer:
D
Explanation:
I Will Mark Brainliest
Which of the following is the broadest taxonomic category?
A
phylum
B
class
C
genus
D
domain
Answer:
I think it's A- phylum, hope this helps
Cardiac output is the amount of blood pumped by the heart in one minute. Which of these will increase cardiac output?
Answer: the factors that increase cardiac output include:
--> Nervous stimulation and
--> Hypertrophy of the heart.
Explanation:
Cardiac output can be defined as the quantity of blood pumped into the aorta each minute by the heart. This is also the quantity of blood that flows through the circulation. There are factors that can cause increased cardiac output or that can lead to a hypereffective heart. They are:
--> NERVOUS STIMULATION: The combination of sympathetic stimulation and parasympathetic inhibition does two things to increase the pumping effectiveness or cardiac output of the heart. These include:
• it greatly increase the heart rate from the normal level of 72 beats/mum up to 180 to 200 beats /mom.
• it increases the strength of heart contraction, which is called increased contractility to twice it's normal strength.
--> HYPERTROPHY OF THE HEART: A long term increased workload, but not so much excess load that it damages the heart, causes the heart muscle to increase in mass and contractile strength in the same way that heavy exercise causes skeletal muscles to hypertrophy. This effect of increased muscle mass of the heart, allows the heart to pump much greater than usual amounts of cardiac output.
Which of the following BEST describes the primary goal for meiosis:
Answer:
D) Daughter cells are produced with only half the chromosomes of the parent cell.
Explanation:
The primary goal of meiosis is to create four gametes, which are cells with only half the chromosomes of the parent cell
Please answer correctly. I really need this. Its not a joke.
Thank you
1. What conditions might cause the most water and sediment to be collected at the bottom of the stream table?
Answer: Steep, high velocity, no silting. The high water speed picks up silt from the bottom instead of letting it settle to the bottom. When the land gets level like often happens at the mouth of rivers where the water spreads out and slows down, silt settles to the bottom and you could get a wide, shallow delta.
(Put in own words this is from online hope it helps)
Match the following terms with the correct definition. Arterioles Arteries Capillaries Venules Veins Small vessels that carry blood away from the heart to the capillaries are __________. Muscular-walled vessels that carry blood away from the heart are _______. One-cell-thick microscopic vessels that function to exchange nutrients and wastes are _________. Small vessels that connect to the capillaries that carry blood back to the heart are ________. Vessels that carry blood back to the heart are _________.
Answer:
Small vessels that carry blood away from the heart to the capillaries are Arterioles. Muscular-walled vessels that carry blood away from the heart are Arteries. One-cell-thick microscopic vessels that function to exchange nutrients and wastes are Capillaries. Small vessels that connect to the capillaries that carry blood back to the heart are Venules. Vessels that carry blood back to the heart are Veins.
Explanation:
We have different types of vessels in our bodies. We can divide them by their size and structure. Starting from the ones that carry blood away from the heath, we have the arteries. Arteries are vessels of big diameter that have muscle around them. Then, the arteries branch into arterioles, which have a smaller diameter. The arterioles branch into capillaries. These are small vessels with thin walls that allow the exchange of nutrients, wastes, and gases with the neighboring tissues. Once that the blood flows through the capillaries, it goes to the venules, which are small veins that will carry the blood to the veins and these to the heart. The veins do not have muscles in their structures, and their walls are thinner than the ones in the arteries.
Why might a speaker choose NOT to use contractions in a formal speech?
A. Contractions are too short.
B. Contractions are rude.
C. Contractions are informal.
D. Contractions are improper.
Answer:
The answer is C
Explanation:
I just took the quiz :)
A speaker might choose not to use contractions in a formal speech because contractions are informal. Thus, the correct option is C.
What is a Formal speech?A formal speech may be defined as a form of speech that is utilized in authorized and official workplaces. It does not illustrate personal background.
Contraction involves the feelings of pressure, stress, or shrinkage of actions. Thus, all such properties come under an informal type of speech where the personal background is determined.
Therefore, a speaker might choose not to use contractions in a formal speech because contractions are informal. Thus, the correct option is C.
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For each glucose that enters glycolysis, _____ acetyl CoA enter the citric acid cycle. For each glucose that enters glycolysis, _____ acetyl CoA enter the citric acid cycle. 4 1 5 0 2
Answer:
For each glucose that enters glycolysis, 2 acetyl CoA enter the citric acid cycle.
Explanation:
SYNTHESIS OF 2Acetyl CoA -:
The glucose is transformed into 2pyruvate (6 carbon molecules are converted into 2 -3 carbon molecules) during glycolysis. In both aerobic and anaerobic respiration, glycolysis occurs frequently. This process takes place in the cytoplasm (it does not require oxygen or mitochondria), but if both oxygen and mitochondria are present, two molecules of pyruvate join mitochondria and prepare for citric acid cycle.
Until entering this, the molecules go through a mechanism known as the linked (connects glycolysis with citric acid cycle) reaction, in which the pyruvate molecule is transformed into 2 acetyl CoA (meaning 3 carbon molecules are converted into 2 carbon molecules) and a carbon molecule is released in the form of [tex]2CO_2[/tex] (waste product).
2NAD+ and NADH are synthesized in the linked reaction, implying that reducing power is produced. It means that electrons from pyruvate are released in the form of hydrogen, which 2NAD+ accepts and reduces to form 2 NADH.
[tex]Glucose[/tex] → [tex]2pyruvate[/tex] → [tex]2Acetyl CoA[/tex]
Linked reaction is also known as oxidative -dicarboxylation.
Hence, 2 Acetyl CoA is required to enter citric acid cycle.
In 2-3 sentences, explain how crossing over and independent assortment in sex cells affect the appearance of the fully developed organism.
Answer:
Explanation:
Crossing over and independent assortment in gametes (sex cells) can lead to genetic variation in the DNA of these gametes and lead to offspring looking different from their parents. Crossing over is the exchange of DNA between a pair of homologous chromsomes (the mom and the dad) which results in recombinant chromsomes that have new combinations of genes. Independent assortment refers to the lining up of chromsoomes along the metaphase plate in meiosis 1, and this can lead to different combinations of gametes.
______and____ are early tetrapods that do not have features unique to fish. Describe how these two species differ antaomically and what that means about where they each live.
Is DNA replication always a foolproof process? Explain your answer.
Answer: No. Although many proteins check the DNA for damage or errors, damaged regions can still be replicated. This may result in gene alterations and serious complications for the organism.
Explanation:
No, replication is not always a foolproof process although many proteins look for DNA damage or mistakes, damaged areas can still replicate. This can lead to gene rearrangements and serious problems in the body.
Some mutations are caused by mistakes in DNA replication. DNA replication isn’t always 100% complete. Sometimes, an incorrect base is inserted into the new DNA strand. This incorrect base can become permanent.
Breaks in DNA are caused by DNA replication errors, particularly those in regions that are difficult to replicate, known as fragile sites.
Breaks in DNA can cause cancer, mainly because they increase the risk of chromosome fragments rearranging themselves and activating genes that cause uncontrolled cell division.
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Provide two reasons why it is important to isolate undigested plant cells.
I need this asap
Answer:
It helps to support growth and helps producing energy to do vital functions.
Hope this helps!
A reliable DNA analysis is based on the DNA conditions. The importance of using undigested cells is that DNA is well-preserved, not affected by external factors, and can be used to compare it to database sequences.
------------------------------------------
Dr. Pringle studies niche partitioning and competition reduction among coexistent species in Africa.
He is interested in knowing the exact source of food of different herbivorous species. To do so, he is using the technique of DNA metabarcoding.
He collects fresh animals' dung and gets the indigested plant cells.
DNA is isolated, sequenced, and compared with the DNI of known species, which are a potential source of food for these animals.
Once he matches the cells' DNA with the corresponding plant species from the database, he can use this information to detail the animal's source of food.
The importance of getting fresh, undigested cells from the dung, is that
The animal's digestive enzymes have not broken the cell walls and digested the cell content. The dung environmental conditions such as pH, temperature, or microbiota have not affected the cell's DNA. Undigested cells' DNA is well-preserved and can be used to compare it with the plant species database.------------------------------------------------------
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