What are the key things to learn about a cell?

Answers

Answer 1

Answer:

1

Explanation:

all living organisms are made up of cells.


Related Questions

Part of an important cellular process involving a DNA strand is modeled below.



What is the purpose of this cellular process?

Answers

Answer: Cellular respiration is the process by which cells in plants and animals break down sugar and turn it into energy, which is then used to perform work at the cellular level.

Explanation: In simpler words, it provides energy for the cell to do basic needs.

what is the botanical name of beans​

Answers

Answer: The common botanical name for beans is Phaseolus vulgaris.

Answer:

Vhaseolus Vulgaris

Explanation:

The botanical name of bean is Phaseolus Vulgaris

Which of the following is an advantage of sexual reproduction over asexual reproduction?

Answers

Answer:

1. Leads to mixing of genetic materials hence variation within species

2. Leads to offspring with hybrid viguor that tend to show high and adaptability to environmental conditions.

3. Variations due to sexual reproduction leads to improvement of species hence evolutionary changes that may bring about specialisation

Try This one out and I’ll give you brainliest

Answers

The correct choice is v=d/t


How can photosynthesis be related to cellular respiration?

Question 8 options:

These two processes have nothing in common.


They both have the same reactants (need the same things).


They both produce the same products.


What's produced (made) by one is needed (the reactants) for the other.

Answers

What’s produced by one is needed for the other

List 3 properties of the
hair's cuticle

Answers

Answer:

Cuticle, Cortex, MedullaBUTProperties include: SmoothnessFlatnessMalleability

Explanation:

These are the main three properties of the hair's cuticle.

Answer:

smoothness

Explanation:

elasticity, softness

Three complex carbohydrates that are very important in living things are starch, cellulose, and glycogen (see below).. All three of these polysaccharides are polymers of glucose, yet they behave very differently in our bodies. We can digest starch and glycogen, but not cellulose. Examine the drawing of these three polysaccharides below. What differences can you see between these molecules that might explain why

Answers

Answer:

The functional group highlighted in pink alternates its position on the carbohydrate molecule

Explanation:

Complex carbohydrates or polysaccharides are large molecular weight molecules composed of repeating unit of simple carbohydrates which are joined together by covalent bonds known as glycosidic bonds. These glycosidic bonds are foremd between the carbon at position number 1 (known as the anomeric carbon) of one simple carbohydrate and a hydroxyl group of another simple carbohydrate.

The configuration of these linkages determines the properties and functions of the complex carbohydrates. The complex polysaccharides starch, glycogen and cellulose are all composed of glucose monomers linked together by glycosidic bonds.

In storage polysaccharides such as starch and glycogen whose function is to store the simple carbohydrate glucose for when needed by the organism, the glycosidic linkages are said to be in α-linkages, placing the functional groups (CH₂OH) all on the same side.

Even the branching points in glycogen are all in α-linkages. Humans have the enzymes to break these bonds so that starch and glycogen molecules can be metabolized by the body.

In a structural polysaccharide such as cellulose, the glycosidic linkages are β-linkages which results in alternating positions for the functional groups. Since humans do not have the enzymes responsible for the breakage of these linkages, hence, we cannot digest cellulose in our bodies.

ASAP Name one challenge we need to overcome by using solar panels

Answers

Answer:

It actually Polutes the enviornment more to own solar panels. This Is caused by the production and the dismemberment of the way its made.

Explanation:

Solar panels are composed of photovoltaic (PV) cells that convert sunlight to electricity. When these panels enter landfills, valuable resources go to waste. And because solar panels contain toxic materials like lead that can leach out as they break down, landfilling also creates new environmental hazards. The potential environmental impacts associated with solar power—land use and habitat loss, water use, and the use of hazardous materials in manufacturing—can vary greatly depending on the technology, which includes two broad categories: photovoltaic (PV) solar cells or concentrating solar thermal plants (CSP).

Capillaries are very thin, narrow blood vessels that allow for the transfer of oxygen, carbon dioxide, and nutrients. The image shows
how normal red blood cells and sickle-shaped red blood cells flow through a capillary,
Use information in the image to describe two ways that the sickle cell gene mutation affects the ability of red blood cells to perform
their normal function

Answers

Answer:

less packaging of oxygen

Explanation:

normal RBC (red blood cells) have a large surface area for oxygen packaging due to its biconcave shape but when mutation occurs the RBC being produced by the short bones is sickle shaped reducing surface area of haemoglobin exposed, responsible for packaging oxygen so tissues don't get right amount of oxygen

which substance is a nuclear acid​

Answers

Nucleic acids are the biopolymers, or large biomolecules, essential to all known forms of life. The term nucleic acid is the overall name for DNA and RNA . They are composed of nucleotides, which are the monomers made of three components: a 5-carbon sugar, a phosphate group and a nitrogenous base.

What pressure, in atm, will be exerted by 8 moles of a gas at 300
Kelvin if it is contained in a 50 Liter vessel?

Answers

Answer:

3.94 atm

Explanation:

Using the general gas law equation as follows;

PV = nRT

Where;

P = pressure (atm)

V = volume (L)

n = number of moles (mol)

R = gas law constant (0.0821 Latm/molK)

T = temperature (K)

According to the information provided in this question;

P = ?

V = 50 L

T = 300K

n = 8 mol

Using PV = nRT

P = nRT/V

P = (8 × 0.0821 × 300) ÷ 50

P = 197.04 ÷ 50

P = 3.94 atm

Which numbers identify the organelles that are present in BOTH plant and animal cells?

Answers

Answer:  answer is A. Because both plants and animals have plasma membranes, cytoplasm, and mitochondria.

Further Explanation

Cell organelles are components of the cell and life. Cell organelles are the most important part of cells that function to regulate the life processes in cells. Cell organelles are in a part called the cytoplasm. Cell organelles consist of several parts, each of which has a different function but functions as a system that supports the life processes that occur in cells.

Animal Cell Organelles

Animal Cell Organelles are forms of eukaryotic cells that form body tissues and then form organs.

Animal cell organelles consist of:

vesicles

mitochondria

centriole

the nucleus

nucleoli

chromatin

ribosome

endoplasmic reticulum

microtubules

plasma membrane

Vacuoles

cytosol

core membrane

Golgi body

lysosome

vesicles.

Cell Plant Organelles

The functions of these plant cells include

as a constituent of the body of plants

activator of all activities in the body of plants,

related to the process of growth and development in plants,

carrier of genetic traits in plants, and

related to plant reproduction.

Cell Plant Organelles consist of:

Cell nucleus (nucleus)

Chloroplast (Plastida)

Ribosome

Mitochondria

Golgi Agency

Endoplasmic reticulum

Vacuoles

Peroxisomes

Explanation:

According to the diagram below, what type of organism converts atmospheric nitrogen (N2) to ammonia (NH3) and then to nitrites (NO2-) and nitrates (NO3-)?

Answers

Answer: Nitrogen-fixing Bacteria

Explanation:

In the Nitrogen cycle, nitrogen fixing bacteria are very important in ensuring that plants get nitrogen to enable them grow and as animals have to eat plants, these bacteria are essential for our survival as well.

Plants are unable to use atmospheric nitrogen but nitrogen-fixing bacteria are able to synthesize ammonia from atmospheric nitrogen. They can then convert this to Nitrites and Nitrates which are more useful to plants and animals by extension.

What is the important organelle that eukaryotic cells have and prokayotic cells don't have?

Answers

There are several differences between the two, but the biggest distinction between them is that eukaryotic cells have a distinct nucleus containing the cell's genetic material, while prokaryotic cells don't have a nucleus and have free-floating genetic material instead.

4. How should the fossils in the sediment layers of Earth appear if species have evolved over time?
A. All of the layers should contain fossils of simple organisms.
B. All of the layers should contain fossils of complex organisms.
C. The lower layers should contain fossils of more complex organisms.
D. The upper layers should contain fossils of more complex organisms.

Answers

Answer:

D the upper layers

Explanation:

at first, lifeforms were simple. they got more complex for a variety of reasons, including to adapt to the changing earth. simple organisms will be lower down for that reason.

The lower layers should contain fossils of more complex organisms. So, the correct option is (C).

What are Fossils?

A fossil is defined as the preserved remains, imprint or trace of something that once lived from a previous geological era. Examples of fossils are bones, shells, exoskeletons, fossilized traces of animals or microbes, objects preserved in amber, hair, petrified wood, and DNA residues. The totality of fossils is known as the fossil record.

There are four main types of fossils which are formed in different way  are conducive to preserving different types of organisms. Fossils are mold fossils, cast fossils, trace fossils and true form fossils.

Fossil layers are fossils that formed in sedimentary rock that formed in layers by depositing and pressing sediments on top of each other.

Thus, the lower layers should contain fossils of more complex organisms. So, the correct option is (C).

Learn more about Fossils, here:

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Складіть ланцюги живлення, починаючи з продуцентів і закінчуючи редуцентами:
а) сосна звичайна, жук-мертвоїд, хрущ (майський жук), бактерії гниття, шпак, плітка, неясить
сіра, мідянка;
б) рак, карась, павук-сріблянка, чапля сіра, ропуха озерна, щука, денні черви, хара ламка.

Answers

Answer:

i dont speak ur language sorry

Explanation:

Can someone help me ASAP!!!

Answers

Answer:

rrkufhjgfyrugf5td89yed/learningnice.com/ffiuvfk/answer

Explanation: u can find the answer there

what makes zebra mussels an invasive species?

Answers

Answer:

Zebra mussels negatively impact ecosystems in many ways. They filter out algae that native species need for food and they attach to--and incapacitate--native mussels. Power plants must also spend millions of dollars removing zebra mussels from clogged water intakes.

HELP!!! I need the answer and reasoning!!! I’ll mark as brainliest!!!

Answers

Answer:

A. Destruction of terrestrial biota

Explanation:

all the other answers would decrease the carbon output. thickening of ocean sediments reinforces a carbon reservoir (which stores carbon), reduction in the use of fossil fuels would reduce the amount of carbon emissions, increase in marine biota = increase in carbon storage because marine biota is also a carbon reservoir.

Destruction of terrestrial biota would cause excess output because terrestrial biota is a carbon reservoir, and all of that carbon would be released into the carbon cycle.

What do coral reefs and estuaries have in common?

Answers

Answer: hewo, there! your answer is below

stuaries are areas of water and shoreline where rivers meet the ocean or another large body of water, such as one of the Great Lakes. Organisms that live in estuaries must be adapted to these dynamic environments, where there are variations in water chemistry including salinity, as well as physical changes like the rise and fall of tides. Despite these challenges, estuaries are also very productive ecosystems. They receive nutrients from both bodies of water and can support a variety of life. Because of their access to food, water, and shipping routes, people often live near estuaries and can impact the health of the ecosystem.

Explanation: Here's some Info Below <3

shallow water, reef-building corals have a symbiotic relationship with photosynthetic algae called zooxanthellae, which live in their tissues. The coral provides a protected environment and the compounds zooxanthellae need for photosynthesis. In return, the algae produce carbohydrates that the coral uses for food, as well as oxygen. The algae also help the coral remove waste. Since both partners benefit from association, this type of symbiosis is called mutualism.

Deep-sea corals live in much deeper or colder oceanic waters and lack zooxanthellae. Unlike their shallow water relatives, which rely heavily on photosynthesis to produce food, deep sea corals take in plankton and organic matter for much of their energy needs.

What kind of issues prevent rural areas from having access to media

Answers

Answer: no wifi

Explanation:

Answer:

no wifi access, basically your offline

What are the three
parts of the hair SHAFT?

Answers

Answer:

The hair shaft is comprised of three layers: the cuticle, cortex, and medulla.

Explanation:

Answer:

Hair shaft is consisted of three layers: cuticle, cortex and in certain cases medulla. Flat and square-shaped cuticle cells are adhered tightly to the cortex cells proximally.Explanation:

HELP STAT!!!!!!!!!!!!

Answers

Answer:

B

Explanation:

Which is the best definitions for mutation

Answers

A change in the organism’s DNA Sequence

Answer:

B or A it produces another one of itself.

Explanation:

"Mutation , an alteration in the genetic material (the genome) of a cell of a living organism or of a virus that is more or less permanent and that can be transmitted to the cell's or the virus's descendants. The genomes of organisms are all composed of DNA, whereas viral genomes can be of DNA or RNA."

Credits to: yahoo and more

Most likely B.

Aroan coloration is the product of crossing a red bull and a white cow.
You cross a roan bull and a red cow. Answer the following question,
What is the genotype of the roan bull?
O A. XRY
O B. RW
O C. rr
OD. RI

Answers

I think that the answer is B
You first need to know how to look up the answer then when you do that let me know what answers it gives you cuz I’m stuck too

Rocky's class recently got pet turtles. When putting together the habitat, decomposers were added to the soil, as well as some smaller organisms that turtles eat. Some students wanted to get "fake" plants for the terrarium, but Rocky insisted that this would negatively affect the carbon and oxygen cycles.

Which of the following reasons support why Rocky is correct?

Group of answer choices

A) Carbon won't be removed from the air.

B) Photosynthesis won't occur.

C) The turtles won't be able to breathe.

D) All of these are correct.

Will mark as brainliest if correct

Answers

Answer:

The correct answer is - D. All of these are correct.

Explanation:

It is clear that the terrarium is sealed or not, if it is open to the outside environment or not. Considering it sealed and no outer interaction, then if a fake plant to this terrarium then there will be no photosynthesis will take place as there are no green plants to capture the sunlight and make glucose and no way to release oxygen for the other organisms.

If in this no green plants then the removal of CO2 will not be possible. Higher amount of carbon and without oxygen turtles would not be able to survive even though there is food for them.

The diagram shows the five kingdoms of life. The place where the circles intersect include
only the characteristics that they have in common.
Which characteristic belongs in the shaded area?

Answers

Well it’s not the prokaryotes because that’s bacteria and archaea. Eukaryotes is your best bet because the two do fall under that category.

When it comes to the multicellular or unicellular protists are MAINLY unicellular while plante, animalia and fungi only are all multicellular so if they were in the same circle that’s probably while they are separated in the first place.

I would pic eukaryotes!
Hope this helps!

A student learns that glaciers can form U-shaped valleys on Earth’s surface. Which geoscience process takes MORE time to shape Earth’s surface than it takes a glacier to form a valley? * A an earthquake that shifts rock layers, changing the course of a stream b a collision of two tectonic plates that lifts up rock layers forming a mountain range c a landslide that removes part of a hillside d a volcanic eruption that lays down a layer of a molten rock that hardens pls answer

Answers

Tttttttttttttt dhshshhsggsgsgd bush’s

Understanding Dose vs Exposure
John works applying pesticide X to agricultural fields. He spent the morning cleaning out a tank that had contained concentrated pesticide X. The tank was large and he was standing in water all morning (4 hours) power washing the tank. Human skin is a wonderful barrier to entry of compounds as long as it is dry and intact, but wet wrinkly skin can absorb toxins. About 5% of pesticide X absorbs into wet skin and John was in contact with water that had a total of 32 g of the pesticide in it.
After the morning is over, John has lunch but does not wash his hands; he has 2 g of the pesticide on his hands. Pesticide X has about 90% absorption from an oral dose.
Finally, John works in the field in the afternoon a crop plane flies over dusting the crops with pesticide X, the air he breathes in has a total of 5 grams of the compound in it. Pesticide X is known to have absorption of about 50% through inhalation.
What is John’s exposure to Pesticide X and what is his dose?
Route of Exposure Exposure (grams) Dose (grams)
Dermal
Oral
Inhalation
Total
Looking at the total exposure and dose, what percentage of his exposure was a dose?

Answers

Answer:

The correct answer is - 15.13%

Explanation:

According to the question, the exposure of the pesticide X to the skin of John is by different routes and amount of the exposure is given and the percentage value is calculated as well:

Route of exposure --- exposure in gram---Dose in gram

Dermal ------------------------32-----------------------32*5/100= 1.6

Oral------------------------------2-----------------------2*90/100= 1.8

Inhalation----------------------5-----------------------5*50/100= 2.5

Total --- -----------------------39 -----------------------5.9

On the basis of this, the exposure is mainly by inhalation, the total exposure is about 39 grams about 5.9 percent. However,

The percentage of dose exposure = (5.9/39)*100

= 15.13%

population of zebras experienced ten births, six deaths to predation, three deaths to
disease, three individuals
pining the population, and zero individuals leaving. What is happening to the population growth?
It is increasing.
N
It is decreasing.
It is staying the same.
It reaches carrying capacity.

Answers

It is increasing Answer A
Other Questions
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