Help, middle school science

Help, Middle School Science

Answers

Answer 1

Answer:

It's the second one because the rest are wrong

Answer 2

Answer:

They may be used to replace dead or damaged cells

Explanation:

when cells die or damage the body makes new cell to replace them and the process is called division


Related Questions

By looking at a plant, how can you tell if it is a cycad and not a palm?

Answers

As palms grow, leaves encircle the stem at the base and leave circular scars around the trunk. Alternatively, cycads have two rows of leaves along a stem that uncoil from the trunk. Generally, the trunk of a cycad is stocky, and they also have little or no branching.

Answer:

D. look for cones

Explanation:

Whales, birds, snakes, and fish need oxygen to survive. Even though they share this trait, these animals are not related because they do NOT —
A. inherit genetic instructions passed down from the same parents.
B. lives in the same type of environment.
C. eat the same types of food.
D. need oxygen to survive in their environments.

Answers

Answer:

A. inherit genetic instructions passed down from the same parents.

These animals are not related because they do not inherit genetic instructions passed down from the same parents. The correct option is A.

What is inheritance?

The transmission of traits and otherwise information through one generation of individuals or cells to the next is referred to as inheritance.

Inheritance can occur through one of two mechanisms: genetic inheritance or epigenetic inheritance.

Deoxyribonucleic acid is another name for DNA. It is the genetic structure that is in charge of storing information.

A nitrogen base, sugar, and phosphate backbone make up DNA. Inheritance occurs when genetic information is passed from a parent to a child, and thus from one generation to the next.

A gene pair's two alleles are inherited, one from each parent. Alleles interact with one another in various ways. These are referred to as inheritance patterns.

Thus, the correct option is A.

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Which pancreatic digestive enzymes digest starches?

Answers

Answer:

pancreatic amylase completes the digestion of starches

Explanation:

begun in your mouth, to release molecules of maltose, while pancreatic lipase breaks down fats into fatty acids and monoglycerides.

Can you see individual cell without a microscope?

Please help me

Answers

No you can’t because the object has to be at least 0.1 Millimeters long to be visible

what are all of the effects of deforestation? Select ALL that apply

Answers

Answer:

Where are the answers?

Explanation:

a beta 1,4 linkage is used to form lactose. sketch a hypothetical disaccharide where it instead links between two monosaccharide that form lactose via an alpha-1,6 formation​

Answers

Answer:Oligosaccharides are built by the linkage of two or more monosaccharides by ... Two molecules of glucose are linked by an α-1,4-glycosidic bond to form the ... Sucrose, Lactose, and Maltose Are the Common Disaccharides ... The branches are formed by α-1,6-glycosidic bonds, present about once in 10 units (Figure 11.13).

Explanation:

Imagine an animal cell lost half of its mitochondria. Explain how the cell would be different.
YOU WILL GET 100 POINTS.

Answers

Answer:

Without mitochondria (singular, mitochondrion), higher animals would likely not exist because their cells would only be able to obtain energy from anaerobic respiration (in the absence of oxygen), a process much less efficient than aerobic respiration. ...

Explanation:

Mitochondria are rod-shaped organelles that can be considered the power generators of the cell, converting oxygen and nutrients into adenosine triphosphate (ATP). ATP is the chemical energy "currency" of the cell that powers the cell's metabolic activities. This process is called aerobic respiration and is the reason animals breathe oxygen. Without mitochondria (singular, mitochondrion), higher animals would likely not exist because their cells would only be able to obtain energy from anaerobic respiration (in the absence of oxygen), a process much less efficient than aerobic respiration. In fact, mitochondria enable cells to produce 15 times more ATP than they could otherwise, and complex animals, like humans, need large amounts of energy in order to survive.

mitochondrion is different from most other organelles because it has its own circular DNA (similar to the DNA of prokaryotes) and reproduces independently of the cell in which it is found; an apparent case of endosymbiosis. Scientists hypothesize that millions of years ago small, free-living prokaryotes were engulfed, but not consumed, by larger prokaryotes, perhaps because they were able to resist the digestive enzymes of the host organism. The two organisms developed a symbiotic relationship over time, the larger organism providing the smaller with ample nutrients and the smaller organism providing ATP molecules to the larger one. Eventually, according to this view, the larger organism developed into the eukaryotic cell and the smaller organism into the mitochondrion.

in most animal species, mitochondria appear to be primarily inherited through the maternal lineage, though some recent evidence suggests that in rare instances mitochondria may also be inherited via a paternal route. Typically, a sperm carries mitochondria in its tail as an energy source for its long journey to the egg. When the sperm attaches to the egg during fertilization, the tail falls off. Consequently, the only mitochondria the new organism usually gets are from the egg its mother provided. Therefore, unlike nuclear DNA, mitochondrial DNA doesn't get shuffled every generation, so it is presumed to change at a slower rate, which is useful for the study of human evolution. Mitochondrial DNA is also used in forensic science as a tool for identifying corpses or body parts, and has been implicated in a number of genetic diseases, such as Alzheimer's disease and diabetes.

i hope this is helpful

have a grest day!!:))

what are application of Sonar technique​

Answers

Answer:

NOAA scientists primarily use sonar to develop nautical charts, locate underwater hazards to navigation, search for and map objects on the seafloor such as shipwrecks, and map the seafloor itself.

Sonar sends a high frequency-sound to the bottom of the ocean. There, the sound waves bounce back when they hit an object. This “paints” a picture of what was hit. Sonar is used to see things at the bottom of the ocean.

In the image of the food chain below the ____ is the producer.

A. Fungi

B. Hawk

C. Plants

D. Snake

Answers

Answer:

A

Explanation:Producers, also known as autotrophs, make their own food. SO its A

a
fungi is the answer

Digestion of ___ begins in the stomach. Select one: a. starch and proteins b. starch and triglycerides c. triglycerides and proteins d. starch and all other oglio-orpolysaccharides

Answers

Answer:

c.triglycerides and proteins

C aka triglycerides and proteins

9. Which organelles found in plant and animal cells are also found in bacterial cells
O chloroplasts
O ribosomes
O endoplasmic reticulum
O Golgi bodies

Answers

Answer:

ribosomes

Explanation:

hope it helps!

There are different forms of energy and one form of energy can be converted into another. When we light a wax candle, the process is highly exothermic and on burning, the chemical energy of the wax gets converted into heat and light. A good source of energy is to be selected for the choice of work to be done. In ancient times, wood was the most common source of heat energy. We, in our daily lives, use various energy sources for doing the work. Nowadays we use diesel and electricity to run trains. We also use fossil fuels in vehicles which has some serious disadvantages, mainly air pollution. The recent example of air pollution was ‘Smog’ in the National Capital Region of Delhi. This pollution was a result of burning ‘Parali’ in northern states of the country, which affected the eyes and also caused serious respiratory problems.
4(a) State the energy conversion that takes place when we light a wax candle. 1
4(b) List two criteria of selecting a source of energy for a specific work. 1
4(c) Write the names of two fossil fuels. 1
4(d) why are we looking at alternate sources of energy? 1

Answers

Answer:

shiii tbh thats hard

Explanation:

Can u help me please the graph is on the other question that I had just recently asked please and thanks.

Answers

Answer:

16. They would compare it the other strand of DNA from other organisms and try to see which one is most similar to organism x

for 17 and 18 could u post the graphs

Control and Data

a tentative, testable scientific explanation

useful for determining the effect of the independent variable

Answers

Answer:

cacacacacacacacacacacacacacacaca

Answer:

kkdm

Explanation:

kmlnui

How can invasive species be prevented?

Answers

Answer:

The best way to fight invasive species is to prevent them from occurring in the first place. ... Verify that the plants you are buying for your yard or garden are not invasive. Replace invasive plants in your garden with non-invasive alternatives. Ask your local nursery staff for help in identifying invasive plants!

Explanation:

Explanation:

here is your answer

please write from it

Where does the spinalthalamic tract cross the spinal cord.

Answers

Answer:

The axons of the tract cells cross over (decussate) to the other side of the spinal cord via the anterior white commissure and to the anterolateral corner of the spinal cord (hence the spinothalamic tract being part of the anterolateral system)

Explanation:

I majored in Biology

Distinguish the types of forgetting: anterograde amnesia, retrograde amnesia, encoding failure, retrieval failure, and interference (both retroactive and proactive).

Answers

Answer:

Anterograde amnesia is the inability to create new memories after the onset of amnesia, while memories from before the event remain intact. Brain regions related to this condition include the medial temporal lobe, medial diencephalon, and hippocampus. Anterograde amnesia can be caused by the effects of long-term alcoholism, severe malnutrition, stroke, head trauma, surgery, Wernicke-Korsakoff syndrome, cerebrovascular events, anoxia, or other trauma. Retrograde amnesia is the inability to recall memories made before the onset of amnesia. Retrograde amnesia is usually caused by head trauma or brain damage to parts of the brain other than the hippocampus (which is involved with the encoding process of new memories). Brain damage causing retrograde amnesia can be as varied as a cerebrovascular accident, stroke, tumor, hypoxia, encephalitis, or chronic alcoholism. The there is encoding failure. Encoding is the process of converting sensory input into a form able to be processed and stored in the memory. However, this process can be impacted by a number of factors, and how well information is encoded affects how well it is able to be recalled later. On the other hand, retrieval failure is the failure to recall information in the absence of memory cues. Proactive interference occurs when old memories hinder the ability to make new memories. In this type of interference, old information inhibits the ability to remember new information, such as when outdated scientific facts interfere with the ability to remember updated facts. This often occurs when memories are learned in similar contexts, or regarding similar things. It’s when we have preconceived notions about situations and events, and apply them to current situations and events.Retroactive interference occurs when old memories are changed by new ones, sometimes so much that the original memory is forgotten. This is when newly learned information interferes with and impedes the recall of previously learned information. The ability to recall previously learned information is greatly reduced if that information is not utilized, and there is substantial new information being presented. This often occurs when hearing recent news figures, then trying to remember earlier facts and figures.

Explanation:

A bird catches and tries to eat a caterpillar. The caterpillar has a bad taste, so the bird lets the caterpillar go. The next time it sees the same kind of caterpillar, the bird avoids eating it.

Which best describes this behavior?

Answers

The Monarch Butterflies contains chemicals in its body that make it taste bad to birds. The birds learn that if they eat these Butterflies that they will have a bad taste.

Answer:

The caterpillar has a bad taste, so the bird lets the caterpillar go.

Explanation:

Item 3
Which organ is found in the excretory system?


stomach


heart


bladder


large intestine

Answers

Answer:

Large intestine

Explanation:

Excretory Organs include- skin, liver, large intstine, lungs, and kidneys

Hope this helps

Answer:

skin, liver, large intestine, lungs, and kidneye

Explanation:

Google

Humans drill wells into Earth's crust to draw out groundwater for drinking and
irrigation of crops. Which spheres are interacting? *
O
Atmosphere, biosphere, and hydrosphere

O Biosphere, hydrosphere, and geosphere

Geosphere, hydrosphere, and atmosphere

Atmosphere, biosphere, geosphere, and hydrosphere

Answers

Answer:

Biosphere, geosphere, hydrosphere

Explanation:

What happens on a cladogram as you move farther away from the base (and closer to the tips)?
A)The species before more and more similar.
B)The species share no common traits.
C)The species share fewer common traits.
D)The species all become extinct.

Answers

As you move farther away from the base, the genetic similarities between the base and the organism decreases. As you move closer to the base, the organisms get more similar.

I need help with this please​

Answers

Answer:

the amount of carbon in the cycle can increase or decrease based on the number of factories present.

Explanation:

In the carbon cycle, carbon is exchange along many different forms on earth.  Carbon is the main component of biological compounds, and it is released from organisms when they die or when fossil fuels are burned, hence, the diagram demonstrates this.



I’ll give brainlist if it’s outstanding

How do parachutes work?

Two paragraphs

Use all these terms in your paragraph: Gravity, Acceleration, terminal velocity, force, air resistance.



Help plssss

Answers

Answer:

Parachutes are made of light but strong materials to keep yyouin the air and have a safe landing :)

Explanation:

A liquid has a ph of 12. It is... A. an acid B. a base C. neutral

Answers

Answer:

the answer is B) base

Explanation:

how the body defends itself against infection

Answers

Answer: poop

Explanation: if you cover yourself in poop it heats your body up an animal does this but i cant remember which one

Answer:

Natural immunity: inborn defence. External defence is maintained by means of intact skin, by mucous, which traps and eliminates micro‐organisms, and by body secretions such as saliva and perspiration, which have disinfectant properties.

Which is true of all organs in the human body? They are made up of two or more tissue types. They produce red and white blood cells. They remove harmful substances from the body. They are composed of one main type of cell.

Answers

Answer:

They are made up of two or more tissue types.

After concluding his research, which statements would Virchow agree with? CHECK ALL THAT APPLY.

Living things come from nonliving things.

Cells can come from nonliving materials.

Frogs can come from mud.

Living things can only come from living things.

Cells come from pre-existing cells.

Answers

Answer:

Living things can only come from living things.

Cells come from pre-existing cells.

Explanation:

Rudolf Virchow a german physicist, biologist and many more, In 1855 Vproposed that cells come from pre-existing based on his observations in exact words 'Omnis cellula e cellula', which translates into all cells arise from pre-existing cells.

He also said the living things come from living things and do not arise from nonliving things or matter. His discoveries made possible the cell theory

INEED Help thx :p with 5

Answers

the answer would be c

Transformation is the process by which a bacterium
O A. lies dormant in a cell for many weeks
B. adds DNA taken in from its environment
C. switches to the bacterial lytic cycle
D. injects its DNA into another bacterium
SUBMI

Answers

Answer:

adds DNA taken in form its environment.

Answer:

adds DNA taken in from its environment

On the pH scale, 14 is a(an)

O base
O acid
O mixture
O salt

Answers

The answer would be base. Anything less than 7 is acidic, anything more than 7 is a base and 7 exactly is neutral.
Other Questions
plzzz help me with my math it hard 3 + 27y + 15zx + 9y + 5z What is life...................................... help!Roberto has been walking the fitness trail near his home and eating healthier the past four months. He is feeling wonderful and hasn't missed a day of school. The benefit Roberto is realizing due to these healthy habits is having: Elevated systolic blood pressure Greater muscular strength in the biceps Less illness and disease Reduced energy levels in the later part of the day Is the snowflakes fall trees for sale gingerbread baking a haiku ? In one game of basketball Henry scored 24 points.How many points would Henry score if he played 3 games ofbasketball? In 2007, Linda purchased a house for $120,000. In 2017, the house was worth $245,000. Find the average annual rate of change in dollars per year in the value of the house Solve by the substitution method. 6x + 8y = 0 -7x + y = 31 Read the passage from Of the Wisdom of the Ancients. Bacon's purpose is to explain what O Chaos is: O Love is. This Love is introduced without any parent at all; only, that some say he was an egg of Night. And himself out of Chaos begot all things, the gods included. The attributes which are assigned to him are in number four: he is always an infant; he is blind; he is naked; he is an archer. There was also another Love, the youngest of all the gods, son of Venus, to whom the attributes of the elder are transferred, and whom in a way they suit. O Night is. O Venus is. Challenges of District Assemblies in Ghana HELPPPP I NEED THE ANSWER Please help??? Thank you!!! Help me with this please!!! Find the value of x. Then find the measure of each labeled angle.X(x-44)x =(x - 44) = 11 5/12 Which best explains this excerpt's purpose in the novel's plot structure? The excerpt provides a solution to the key problem as part of the resolution. The excerpt is the point of greatest tension and acts as the climax. The excerpt builds suspense and creates tension as part of the rising action. The excerpt takes place after the climax as part of the falling action. Your cell phone provider charges a monthly fee of $30. You are also charged $0.07 per minutefor each minute. Last month, Mr. Gonzales' bill was $59.40. Let m represent the total numberof minutes Mr. Gonzales used last month. Use the verbal model below to write an equation. Read the word equation: Propane gas plus oxygen gas produces __________.b) Convert the word equation to a chemical equation and complete the reaction. Be sure to balancethe chemical equation.c) Record the balanced chemical equation on the Student Worksheet. Read these sentences from paragraph 2 of the excerpt from The Condition of the Working Class in England in 1844Before the introduction of machinery, the spinning and weaving of raw materials was carried on in the working-man's home WhimselfWhich sentence from the excerpt from Sybil, or the Two Nations relates to this idea?"That's a bad business," said the watchman, in a tone not (without) sympathyThe man seated himself at his loom, he commenced his daily task.It gave me a cottage in my native village, surrounded by a garden of whose claims on my solicitude it was not jealous.It is not adversity that makes me look back upon the past with t Is this correct? Im too tired and confused to understand this..