Answer:
it is because a plant cell is surrounded by a cell wall
What does PONCH stand for?
phosphorus, oxygen, nitrogen, carbon, and hydrogen
phosphate, oxygen, nickel, carbon, and hydroxide
pulmonate, oxygen, sodium, calcium, and helium
phosphate, oxygen, nitrogen, carbonide, and hydrogen
Answer:
PONCH stands for : phosphorus, oxygen, nitrogen, carbon, and hydrogen.
Proteins provide a lot of functions for your body. Choose a function of proteins
A. long term energy
B. short term energy
C. build muscle, hair, and nails
D. genetic information
Did you know that your bum can make three states of matter? Solid, Liquid, ad Gas
Answer:
Nope
Explanation:
Nope
Nope
Nope
Nope
Nope
Nope
Nope
Nope
Nope
Nope
Nope
Nope
Nope
Nope
Nope
Nope
Nope
Nope
Nope
Nope
The ___________________ contains receptors for monitoring the position of the head.
Answer:
Vestibular Receptors
Explanation:
Located in the ear, only in the ear. When you are talking about position of other body parts this is called proprioceptors (sense positions of like arms, legs and other body parts).
If distance equals speed multiplied by time,
then how far does a sound travel if it has a speed
of 330 m/s, and travels for 10 seconds? Be sure to
give an answer with units.
Answer:
3300 meters
Explanation:
so the formula is in the questtion
distance=speed*time
so distance=330*10
to get the units you have to look to see that the only unit that is a distance is meters
hope this helps!
4. How does the life of a sperm cell vary among the mosses, ferns, gymnosperms and angiosperms?
Answer:
They evolved on land to begin with from earlier now extinct groups groups so there was no need to adapt to life on land, other than to adapt to different terrestrial environmental pressures. Land can be everything from next to a river to a hot desert to rocks to Antarctica, and plants grow in all those places.
As well, there are thousands of species that are floating aquatics or submerged aquatics, including many ferns, and even some gymnosperms grow as marginals, and many species of angiosperms, mosses, ferns, and even some gmnosperms grow as epiphytes, or as parasites, or other ways.
All sugars are considered:
a carb
a fat
just sugars
a lipid
Answer: fat......................................
Which statement best identifies a central idea of this text?Issues with the Articles of Confederation"
I need help with this one
Simone is creating a model to track the movement of carbon atoms in an ecosystem. Which statement best explains the role of plants in Simone's model?
Although I cannot see the model for Simone's experiment, I can offer the insight that the most likely role of plants in the model is that they consume the carbon atoms and produce oxygen.
How do plants affect the carbon in the atmosphere?Plants are known to have a great effect on the carbon levels of the atmosphere. The correlation is that the more plants are present, the less carbon is free in the air. The reason for this is that plants use carbon dioxide as a substrate to manage the process of photosynthesis.As a by-product, after consuming carbon dioxide and completing photosynthesis, plants release oxygen into the atmosphere.Therefore, we can confirm that the most likely role of plants in the model created by Simone, is that they will consume carbon atoms in the form of carbon dioxide in order to sustain photosynthesis, which releases oxygen.
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What is carrying capacity? What factors could influence the carrying capacity of a population?
Answer:
Carrying capacity can be defined as a species' average population size in a particular habitat. The species population size is limited by environmental factors like adequate food, shelter, water, and mates. If these needs are not met, the population will decrease until the resource rebound
Humans have increased the world's carrying capacity through migra:tion, agriculture, medical advances, and communication. The age structure of a population allows us to predict population growth. Unchecked human population growth could have dire long-term effects on our environment.tion
Which of the following show similarities between organelles and organs of the body?
Answer:
Organelles are specialized structures that perform various jobs inside cells. The term literally means “little organs.” In the same way organs, such as the heart, liver, stomach, and kidneys, serve specific functions to keep an organism alive, organelles serve specific functions to keep a cell alive.
Explanation:
PLS HELP WHAT SHOULD I WIRTE?)
Write your own acrostic poem using the word "THANKFUL". You can use words or phrases for each line. Make sure to write about what you are thankful for.
our atmosphere contains 78% free
Answer:
nitrogen
Explanation:
A good example of a positive feedback mechanism would be
(select all
that apply)
A. breast feeding
B. regulating glucose levels in the blood C.enhancement of labor contractions during parturition
D. blood clot formation
E.body temperature regulation
F. blood calcium level regulation
Answer:
enhancement of labor contractions during parturition
Which process in the cell cycle could lead to a cancerous cell?
Answer:
Cancer is unchecked cell growth. Mutations in genes can cause cancer by accelerating cell division rates or inhibiting normal controls on the system, such as cell cycle arrest or programmed cell death. As a mass of cancerous cells grows, it can develop into a tumor
Explanation:
Crabgrass, also known as digitaria sanguinalis, is a stationary multicellular species that belongs to kingdom Plantae. According to the table below which of the following species is most closely related to digitaria sanguinalis?
Answer:
Quercus
Explanation:
a change in the base pairs is called a what?
Answer:
Hey mate.....
Explanation:
This is ur answer.....
Substitution is a type of mutation where one base pair is replaced by a different base pair. The term also refers to the replacement of one amino acid in a protein with a different amino acid.
Hope it helps!
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Answer:
Substitution is a type of mutation where one base pair is replaced by a different base pair. The term also refers to the replacement of one amino acid in a protein with a different amino acid.
Explanation:
Which of the following best describes how the amount of DNA in the cell changes during M phase?
The amount of D N A doubles as the D N A is replicated.
The amount of D N A slightly increases as a result of new organelle synthesis.
The amount of D N A does not change while the cell grows.
The amount of DNA is halved as the cell divides into two daughter cells.
Answer:
The amount of DNA doubles as the DNA is replicated
Explanation:
on the graph it shows that the DNA is x2 by the time it reaches G2
The amount of DNA is halved as the cell divides into two daughter cells. Therefore, option (D) is correct.
What is M phase?M phase, also known as mitosis, is the phase of the cell cycle in which a cell divides into two daughter cells. M phase is divided into several stages, including prophase, prometaphase, metaphase, anaphase, and telophase. During prophase, the cell's nucleolus disappears and the chromatids (replicated chromosomes) become visible. In prometaphase, the nuclear envelope breaks down and the mitotic spindle begins to form.
During metaphase, the chromosomes line up at the equatorial plane of the cell. In anaphase, the sister chromatids are separated and move to opposite poles of the cell. Finally, in telophase, two new nuclei form and a new cell wall begins to grow between the two daughter cells. Overall, M phase is a crucial step in the cell cycle that ensures the accurate segregation of genetic material to the daughter cells.
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If human activity continues at its present rate, what will probably happen to the levels of carbon dioxide and other gases?
One important function of bones is to produce ……………….
Answer:
Red blooded cell, White blooded cell and platelets
I need help with this answer it’s a bit tricky
Answer:
organic selection
Explanation:
Taste action potentials move through cranial nerve number ____ to the brain.
Answer:
Cranial Nerve #9
Explanation:
Cranial nerve number 9 is also called the glossopharyngeal nerve. Taste perception is really cool I recomend studying this topic well!
The β chains of HbA and HbS were treated with trypsin, and the sequence of the N-terminal tryptic peptides are as given below. Do these peptides separate from each other in an electric field if the pH is 7.0? Explain in detail the reasoning behind your answer and include your calculations for the charge of each peptide in your answer.
HbA: Val-His-Leu-Thr-Pro-Glu-Glu-Lys
HbS: Val-His-Leu-Thr-Pro-Val-Glu-Lys
Yes The two peptides will separate from each other in an electric field when the pH is 7.0
The two peptides wil drift/separate from each other when the pH is 7.0 because of the reaction of trypsin enzyme and also the difference in charge between HbA and Hbs
Considering charge of each peptide
Since The isoelectric point of normal Hba is 6.9 and Hbs possess two fewer negative charges per hemoglobin molecules
The Hbs is more hydrophobicity than HbA due to the substitution of glutamic acids of HbS by valine residue.
Considering Electrophoresis
At a lower pH level Hbs shows a slower moving band than Hba
while a higher pH level the HbS peptide is less negatively charged while the carboxyl group of HbA is more negatively charged and Hba moves faster as well as an acidic pH.
Hence we can conclude that the two peptides will separate from each other in an electric field when the pH is 7.0
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Mosses and trees are both what?
Answer: D. (Mosses and trees are both plants.)
Explanation: Since mosses are non-vascular plants and trees are vascular plants, and mosses and trees are both not seed plants, mosses and trees are both plants. (Hope this helps! :D)
3. The jar with a plant floating on it was placed on top of the table. What do you think is the plant inside the jar? A lotus B. lemon grass C. onion D. orchid
PLEASE I REALLY NEED THE CORRECT ANSWER RIGHT NOW!!!
The plant floating inside the jar is a lotus plant.
FREE-FLOATING PLANTS:Aquatic plants are plants that are adapted to survival in water. They can either be free-floating, submerged or attached to surfaces etc.
Free-floating aquatic plants are plants that suspend their leaves or other vegetative part on the water surface.
Examples of free-floating aquatic plants are water hyacinth, water Lily, water lotus etc. Therefore, the plant being described to float in the jar of water is likely a lotus plant.
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the components of every food chain are
Answer:
Explanation:
A food web consists of several components; primary producers, primary consumers, secondary consumers, tertiary consumers, and so on. Primary producers include green plants and are the foundation of the food web.
Answer:
hope the above picture helps
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Do you think people should be able to patent DNA? Should people have the right to trademark their own DNA? Explain why or why not.
=
Which of the following is a way that minerals are used?
a. industry
b construction
C technology
d. all of the above
Please select the best answer from the choices provided
A
ООО
0 0 0
Answer:
D.
Explanation:
1. The burning of fossil fuels contributes to all of the following ecological problems except for:
A. ozone depletion
B. global warming
C. acid rain
D. air pollution
The burning of fossil fuels does not contribute to ozone layer depletion.
The burning of fossil fuels leads to the release of gases such as oxides of nitrogen, sulfur, and carbon as well as particulate matter such as smoke, ashes, etc.
The oxides released from fossil fuel burning can cause global warming (carbon dioxide), acid rain (SO2), and air pollution (particulate matter).
Ozone layer depletion is caused by pollutants such as halocarbons, solvents, etc.
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