Answer:
1. both are made of blood and plasma
2. C, A, B
3. capillary walls must be very thin
4. a highway
5. harmful particles would get in your bloodstream
6. complimentary
7. it distributes fatty acids throughout the body
8. immune
9. white blood cells
10. garbage collector
Determine how the sugar in the water affects the petal loss.
Write a sentence that states what you found out about the scientific question you just investigated. Provide enough detail so that a friend who did not do the experiment could learn from your description.
Answer: When you add sugar to your plant's water supply, it changes the ability of the plants to absorb water. In some instances this is helpful such as when the plants are dying off, but in other cases this will damage the plants when the plant is already functioning properly.
Explanation:
What are the steps of mitosis? explain the steps
Today, mitosis is understood to involve five phases, based on the physical state of the chromosomes and spindle. These phases are prophase, prometaphase, metaphase, anaphase, and telophase.
Prophase
Mitosis begins with prophase, during which chromosomes recruit condensin and begin to undergo a condensation process that will continue until metaphase. In most species, cohesin is largely removed from the arms of the sister chromatids during prophase, allowing the individual sister chromatids to be resolved. Cohesin is retained, however, at the most constricted part of the chromosome, the centromere (Figure 9). During prophase, the spindle also begins to form as the two pairs of centrioles move to opposite poles and microtubules begin to polymerize from the duplicated centrosomes.
Prometaphase
Prometaphase begins with the abrupt fragmentation of the nuclear envelope into many small vesicles that will eventually be divided between the future daughter cells. The breakdown of the nuclear membrane is an essential step for spindle assembly. Because the centrosomes are located outside the nucleus in animal cells, the microtubules of the developing spindle do not have access to the chromosomes until the nuclear membrane breaks apart.
Prometaphase is an extremely dynamic part of the cell cycle. Microtubules rapidly assemble and disassemble as they grow out of the centrosomes, seeking out attachment sites at chromosome kinetochores, which are complex platelike structures that assemble during prometaphase on one face of each sister chromatid at its centromere. As prometaphase ensues, chromosomes are pulled and tugged in opposite directions by microtubules growing out from both poles of the spindle, until the pole-directed forces are finally balanced. Sister chromatids do not break apart during this tug-of-war because they are firmly attached to each other by the cohesin remaining at their centromeres. At the end of prometaphase, chromosomes have a bi-orientation, meaning that the kinetochores on sister chromatids are connected by microtubules to opposite poles of the spindle.
Metaphase
Next, chromosomes assume their most compacted state during metaphase, when the centromeres of all the cell's chromosomes line up at the equator of the spindle. Metaphase is particularly useful in cytogenetics, because chromosomes can be most easily visualized at this stage. Furthermore, cells can be experimentally arrested at metaphase with mitotic poisons such as colchicine. Video microscopy shows that chromosomes temporarily stop moving during metaphase. A complex checkpoint mechanism determines whether the spindle is properly assembled, and for the most part, only cells with correctly assembled spindles enter anaphase.
Anaphase, is the stage of mitosis after the process of metaphase, when replicated chromosomes are split and the newly-copied chromosomes are moved to opposite poles of the cell
Telophase and Cytokinesis
Mitosis ends with telophase, or the stage at which the chromosomes reach the poles. The nuclear membrane then reforms, and the chromosomes begin to decondense into their interphase conformations. Telophase is followed by cytokinesis, or the division of the cytoplasm into two daughter cells. The daughter cells that result from this process have identical genetic compositions.
Answer:
Prophase (From Greek words meaning “before” and “stage”):
Chromatin condenses into 2 visible rod structures, chromosomes, in a process called chromatin condensation (inspired name, right?).
Due to the DNA replication in interphase, there are two identical copies of each chromosome, referred to as sister chromatids, attached by a centromere.
At the end of prophase the nucleolus dissolves.
Technically this next section is classed as a separate stage but for all intents and purposes it is usually bundled up in the end of Prophase and the beginning of Metaphase. It’s called… *drum roll*… Prometaphase.
What happens here is the nuclear membrane breaks apart and chromosomes form structures known as kinetochores. For A-level you don't really need to know about these so I'll stop myself there.
Metaphase (from Greek meaning “adjacent” “stage”):
The centromeres of all chromosomes line up along the equator of the cell. Spindle fibres form between the poles of the cell and the centromeres.
Anaphase (more Greek! Means “up” “stage”):
The centromeres are split and the spindle fibres contract, pulling the sister chromatids to opposite poles of the cell. The chromatids form a V/Y shape as they are pulled backwards.
The cell also stretches into an oval (this movement of the cell is due to non-kintochore spindle fibres pushing against each other, but this is far above A-level).
Telophase (“end” “stage”):
The effects of prophase and prometaphase are effectively reversed here.
Two nuclei form in the cell, at both ends of the cell. Nuclear envelopes are reformed from components of the parent cell’s envelope.
There are 2 theories about how this happen:
Vesicle fusion: fragments of the initial nuclear membrane fuse to rebuild the nuclear membrane
Reshaping of the endoplasmic reticulum
The nucleoli also re-form, any remaining spindle fibres depolymerise and the chromosomes begin to unwind and expand into the chromatin that is seen in interphase.
Cytokenises begins, in which a Myosin II and actin filament ring contract to cleave the cell in two, resulting in two genetically identical daughter cells.
After that, they're both straight back to interphase.
Explanation:
How many energy transformations and/or transfers happen as electricity is being produced?
-Name at least 4
Answer:
Mechanically – By the action of a force.
Electrically – By an electrical current.
By radiation – By Light waves or Sound waves.
By heating – By conduction, convection or radiation.
Explanation:
In one or two sentences, describe how an invasive species can be introduced into an ecosystem by humans. Name a specific situation and species and how it would affect the ecosystem.
Your friend shows you the image below and claims that it shows the process of mitosis. why is he or she wrong? (3 reasons)
Answer:
1. The cell splits itself twice
2. 4 resulting sperm cells are made
3. Only half of the DNA is kept per cell
Explanation:
Mitosis only has one diving phase that occurs only on body cells, which makes it have 2 daughter cells. This, on the other hand, has 4 daughter cells. If you notice, after the third set of bubbles, the genome(DNA) is split among 4 cells.
General topic: An argument for why climate change poses a threat to organisms
I need the answer to this: how are organisms behaviors or structures are being affected by rising temperatures?
Can somebody please label the parts of the frog?
Answer: As in other higher vertebrates, the frog body may be divided into a head, a short neck, and a trunk (see Vertebrates). The flat head contains the brain, mouth, eyes, ears, and nose. A short, almost rigid neck permits only limited head movement. The stubby trunk forms walls for a single body cavity, the coelom.
Explanation:
What is the wavelength measurement?
A. 2 m
B. 4 m
C..2 m
D. 4 m
What happens when a carnivorous plant grows in soil rich in nutrients?
Please don't copy from Goo gle and give a detailed explanation.
Answer:
that carnivorous plants will invest more energy in nutrient uptake from the soil and less energy in prey capture whenever possible.
The first part of the cell cycle is called _____________.
Answer:
The interphase
Explanation:
It splits into 3 parts G1, S, and G2. It starts the cell growth and matures it.
Monarch butterflies have very long tubular tongues. What is the most likely function of this adaptation?
Question 31 options:
to defend the butterfly from predators
to obtain liquid food from flowers
to sense changes in the environment
to dig holes in the soil for shelter
Babies cry when they are hungry or thirsty. When they cry their parents usually respond, go to and pick up the baby, and give him or her food or milk. Over time, the baby learns that a parent will come when he or she cries. This is a type of learned response called
Question 30 options:
conditioning
imprinting
mimicry
survival
(k12)
Answer:
Question 31 - to obtain liquid food from flowers
Question 30- survival
Explanation:
Butterflies need longer tongues to get into longer flowers and obtain the nectar and liquid food from inside.
Survival is the answer because babies need food and water to survive and they learned a way to get the things that they need.
complete each word on the second screenshot (just fill in the blank basically)
Answer:
.
Explanation:
can some one help me with this:)
Explain why a clownfish can touch an anemone when other organisms cannot.
10. Fully-formed vertebrates might not have a lot in common, but their embryos show more similarities. What do all vertebrate embryos have in common at some point in their development? *
A. Gill slits and lungs
B. Tails and lungs
C. Tails and gill slits
D. Tails and fins
What type of relationship exists between the common teasel and all of the other plants?
Answer:
it pollinates it
Explanation:
the comma teasel is a butterfly that pollinates plants
In a paragraph (at least 6 sentences)- Introduce Water Striders and tell how they are able to walk on water by explaining the relationship between hydrogen bonding, cohesion, surface tension, and buoyancy.
Answer:
Water striders are able to walk on top of water due to a combination of several factors. Water striders use the high surface tension of water and long, hydrophobic legs to help them stay above water.
Water striders use this surface tension to their advantage through their highly adapted legs and distributed weight. The legs of a water strider are long and slender, allowing the weight of the water strider body to be distributed over a large surface area. The legs are strong, but have flexibility that allows the water striders to keep their weight evenly distributed and flow with the water movement. Hydrofuge hairs line the body surface of the water strider.
Why does the sun rotate around the planets
Answer:
the sun does not rotate around the planets the planets rotate around the sun
So that mean there is no Resoan why the sun rotate around the planets
Hope This Is What You Wanted :)
Lab: Flower Dissection pls help
The purpose of the lab is to provide experimental knowledge to the students with respect to a specific topic. During flower dissection, the lab assists students in identifying all major and minor parts of the flower using a microscope.
What do you mean by Flower dissection?Flower dissection may be defined as the observation of different flower parts internally by cutting its thin segment and visualizing under them a microscope.
The practical knowledge assists the students in clearing the concept more easily and making things more understandable. The lab offers the students to identify each component of flowers with respect to its functions narrowly.
Therefore, the purpose of the lab with respect to flower dissection is described above.
To learn more about Flower dissection, refer to the link:
https://brainly.com/question/20366481
#SPJ2
Can somebody please label with numbers?
Answer:
1. Tympanic Membrane
2. Vomarine Teeth
3. Eustachian Tube
4. Tongue
5. Esophagus
6. Glottis
7. Maxillary Teeth
8. Nictitating Membrane
Explanation:
hope it helps
if the other person doesn't mind, can i have brainliest
Section 1: Overview of Lab
What is the purpose of the lab?
Answer:
the purpose of lab are:
1. it is used as storing different chemical and its tool.
2. it is used as experiment place.
I skipped number 4 cuz its just really confusing
but ppppppppplllllllllllllllllllllllllllllllllllzzzzzzzzzzzzzzzzzzzzz help
5. Read the following passage.
A small amount of oil can be used to produce a large amount of energy. Because of this, oil has changed the way we live. Our cities are built for cars, which run on oil in the form of gasoline. People have grown used to the idea of being able to hop in their car and drive anywhere they want, for a relatively low price. And our country has a large network of gas stations already in place to make this possible.
However, there is only so much oil underground. Once we have taken all the oil from underground, it will not be replaced. As oil starts to run out, the price will keep increasing. Also, oil releases greenhouse gases when burned, but that is not the only effect it has on the environment. Drilling for oil is a difficult process and can cause environmental damage. In the drilling area, organisms can lose their homes or be killed. Oil is also drilled offshore, which means it is drilled from the ocean floor. This can cause problems for marine life. One of the worst outcomes is when oil is spilled into the ocean, because this is very difficult or even impossible to clean.
a) Based on this passage, what are the pros and cons of using oil? (2 points)
Think about the good and bad things that the passage mentions.
b) How might society affect science when it comes to developing oil-based technology? (1 point)
Think about concerns or needs people may have.
pls help
Carl Woese introduced the concept of domains in the 20th century. Which characteristic of scientific knowledge does this highlight?
Answer:
It will remain the same over years
Explanation:
This is your answer
Butterflies are often observed in grassy areas with many flowering plants. They have a long thin, structure called a proboscis, which is used to collect nectar from flowers. Which statement best describes how butterflies would survive in a new area with some tall trees and very few flowering plants?
A Butterflies would survive well in the new area because they rely on other butterflies for food.
B Butterflies would survive well in the new area because trees provide shade for the butterflies.
C Butterflies would not survive well in the new area because they eat food produced by the flowering plants.
D Butterflies would not survive well in the new area because the trees would block the sunlight they need to produce energy.
1) What determines which genes will be an advantage and which ones will be a disadvantage?
2) How does this experiment illustrate Darwin’s theory of Natural Selection?
Help me Please
(Double Points)
Full Response…
which of the following statements best explains their results
Answer:
c might be the answer
Explanation:
the question is not clear . for sure its not a. and b they didn't explain it clearly the same thing with d too.
Begin with blood flow in the left ventricle, recognizing how the vena cava, aorta, pulmonary artery and veins, right and left atriums, right and left ventricles, arteries, and veins all contribute to blood flow. Oxygenated and deoxygenated blood should also be described in your blood flow description.
Left ventricle, Aortic semilunar valve, Aorta, Arteries, Capillaries, Veins, Inferior vena cava, Right artrium, Tricupsid valve, Right ventricle, Pulmonary semilunar valve, Pulmonary artery, Lungs, Pulmonary veins ( Right & Left ).
Deoxygenated blood is received from the systemic circulation into the right atrium, it is pumped into the right ventricle whereas, The blood that is returned to the right atrium is deoxygenated while the left atrium receives newly oxygenated blood from the lungs through the pulmonary vein.
can one of yall help me please and thank you
Living things... oh yes.
The answer here would be "has a heart". Every living thing doesn't necessarily have a heart. Trees and plants do not have hearts, yet they are alive. (Some scientists believe that plants have pulses, though. No heart, but a pulse! Odd, isn't it?)
I hope this answers your question.
-Toremi
Answer:
organization
Explanation:
organisation is something you learn, you don’t need it to survive
What is a health benefit to eating whole grains?
a. They may improve bowel health and function.
b. They may reduce the risk of heart disease.
c. They may maintain a healthy blood pressure.
d. They may reduce blood cholesterol levels.
Answer: B
Explanation: Grains are naturally high in fiber, helping you feel full and satisfied — Whole grains help to a lower risk of heart disease, diabetes, certain cancers and other health problems.
ANSWER THE QUISTION IN PICTURE GIVING BRAINLIEST IF CORECT
Answer: It could be B. or C. I would go with B because it mentions the guard cells
Explanation:
Stomata are composed of two guard cells. These cells have walls that are thicker on the inner side than on the outer side. This unequal thickening of the paired guard cells causes the stomata to open when they take up water and close when they lose water.
Answer:
B
Explanation: