what are the defining characteristics of the animal cell

Answers

Answer 1

Answer:

in the explanation ALSO PLEASE ANSWER MY LATEST QUESTION PLEASE ITS A TIMED TEST.

Explanation:

animal cells have a nucleus and other membrane-bound organelles Unlike the cells of plants and fungi, animal cells lack a cell wall. This gives animal cells flexibility.


Related Questions

Tropical, temperate, and polar describe climate zones due to
A. latitude.
B. rainfall amount.
C. temperature.
D. snowfall amount.

Answers

Answer:

A. Latitude

Different latitudes on Earth receive different amounts of sunlight, and are a key factor in determining a region’s climate.

Help pls i rlly need it?

Answers

C. The nucleus hope this help you!

Answer:

CELL NUCLEUS!!!

Explanation:

Can you give me an example of an amphibian close to extinction?

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Answer:

frogs or salamanders

What does it mean to say that the U.S. Government has a balanced budget?

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Explanation:

A balanced budget occurs when revenues are equal to or greater than total expenses. A budget can be considered balanced after a full year of revenues and expenses have been incurred and recorded.

What is an equinox and when does it happen?

Answers

An equinox is commonly regarded as the instant of time when the plane (extended indefinitely in all directions) of Earth 's equator passes through the center of the Sun. This occurs twice each year: around 20 March and 23 September.

Answer:

An Equinox is commonly regarded as the instant of time when the plane of Earth's equator passes through the geometric center of the Sun's disk. This occurs twice each year, around 20 March and 23 September.  In other words, it is the moment at which the center of the visible Sun is directly above the equator.

Explanation:

Can I please get the answer ?

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Answer:

The answer is A. water, carbon dioxide, and energy.

Explanation:

In passive transport, molecules move__ the concentration gradient.

Answers

Answer:

In passive transport, molecules move with the concentraction gradient.

Explanation:

If molecules moved against it would be active transport.

Passive transportation has been defined as the mode of molecule movement across the semi-permeable membrane. "In passive transport, molecules move down the concentration gradient."

What is passive transport?

Passive transport has been the mode of movement of the ions and molecules from the exterior and interior of the cell through the plasma membrane. This mode of transportation has been characterized by the movement of the ions from the region of a higher electrochemical gradient.

The ions tend to move towards the region that lacks the electrochemical gradient, hence it is a movement in the direction of the lower concentration. The solute particles do not external source of energy to drive the movement from higher concentration areas.

It is a type of diffusion that uses the law of Thermodynamics to move the ions up and down the cell concentration. The movement of the oxygen gas in the body cells is an example of passive transportation.

Therefore, the ions move down the concentration gradient in the passive transport.

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Silver (Ag) has 47 protons in each atom. Based on this information, which of the following also describes an atom of silver? A. It has no neutrons. B. It has 47 electrons. C. It has 23 neutrons and 24 electrons. D. It has a total of 94 neutrons and electrons. it science by the way.​

Answers

Answer:

B

Explanation:

It has 47 electrons, as proton number is equal/the same as the electron number (proton number=electron number).

Hope this helps! :)

Write two differences between the unicellular and multicellular organisms.

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Answer:

1.a unicellular organism has only 1 cell while a multicellular organism has 1 or more cell

2.a unicellular organism is a prokaryotic cell or bacteria, while a multicellular organism is mainly a eukaryote

Explanation:

Answer:

Unicellular organisms are single-celled

Multicellular organisms are multi-celled

Unicellular organisms include bacteria

Multicellular organisms don't include bacteria

Explanation:

Hope this helped!!

No explanation needed

Answers

I think it’s A I hope this helps!

whats the difference between aerobic and anaerobic respiration

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Answer:

Aerobic respiration is a set of metabolic reactions that take place in the presence of oxygen, occurring in a cell to convert chemical energy into ATPs. Anaerobic respiration is a process of cellular respiration where the high energy electron acceptor is neither oxygen nor pyruvate derivatives.

Explanation:

How is the blackjack seed suited to its method of dispersal?

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Answer:

Seeds are widely dispersed through the fruits hook-like bristles that embed themselves in clothing and the fur of mammals and feathers of birds. They are also spread by wind, water and soil.

Explanation:

What types of rocks do the numbers 2, 3, and 5 represent, in that order?
a. igneous, sedimentary, metamorphic
b. metamorphic, igneous, sedimentary
c. sedimentary, igneous, metamorphic
d. sedimentary, metamorphic, igneous

Answers

Answer:

d) sedimentary, metamorphic and igneous

Answer:

The answer is B

Explanation:

A lamp that plugs into a wall socket draws energy which flows through a thin wire in the bulb causing it to glow. What energy transformation are taking place?
choices:
Chemical>light>electrical
Mechanical>sound>light
Thermal>solar>electrical
Electrical>thermal>light

Answers

Answer:

Electrical>thermal>light

Explanation:

Electrical energy refers to energy which is gotten from potential energy. This energy source could be a wall socket.

Thermal energy on the other hand refers to internal energy of a system where temperature is constant.

Light energy is made up of photons which transmits electromagnetic radiation which move in waves and become visible to human eye.

Therefore, the energy transformation taking place according to the question is option D.

Your professor describes an aquatic eukaryote that is single-celled, a primary producer, unable to swim on its own, and is structurally resistant. What organism is most similar to the one described by your professor?

Answers

Answer:

The correct answer is - diatom (protist)

Explanation:

The characteristic described by the professor is most similar to the characteristic of aquatic protist - diatoms. Diatoms are the aquatic protist fall into the eukaryotic type of organisms.

These organisms are single-celled and can not swim on their own. They are a primary producer as they do not depends on others for their food and energy and synthesized themselves.

Which scenario best describes motion?
A.) a toy train in position 4 on a number line
B.) a race track that is 100 meters long
C.) a ball rolling from point A to point B
D.) a student living 150 miles from Chicago

Answers

I think it’s c bc it makes more sense
C. Because it describes an object moving from one point to another.

Include captive breeding, laws and treaties, and habitat preservation

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These activities include habitat destruction, poaching, pollution, and the introduction of exotic species. Three successful approaches to protecting biodiversity are captive breeding, laws and treaties, and habitat preservation. The number of different species in an area.

DNA and protein together form a complex called

Answers

they form a complex called chromatin

Answer:

chromatin!

Explanation:

The tropical rain forest biome has some of the highest biodiversity on earth how would a decrease in the biodiversity due to deforestation or other factors affect the large biosphere

Answers

Answer:

Negatively.

Explanation:

A decrease in biodiversity can cause a large chain reaction within the ecosystem. A loss of species can be detrimental, especially if they're key stone species. This negative impact can cause the food chain to be disrupted which ends up affecting every organism within the environment. Every organism plays a role within the ecosystem and when one or more are removed it causes extreme disarray.

The decrease in biodiversity due to deforestation and other factors in the tropical rainforest biome will negatively affect the biosphere. Thus, the effect will be negative.

What is the biosphere?

The biosphere also called the ecosphere is the sum of the total life or the ecosystem. It includes the part of the planet where life is inhabitants. It may include a mountain, roots, dessert, oceans, etc. It is interrelated to biodiversity.

If the biodiversity of a place gets declined due to factors like deforestation, pollution, poaching, natural disasters, etc. then it will affect the ecosystem. If the stone species are lost then it will have a detrimental effect on the ecosystem.

These negative consequences disrupt the food chain and will result in affecting every organism. This chain of disruption will cause an overall loss to the biosphere.

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PLEASE HELP I NEED THIS QUESTION ASAP :((

Cancer cells are body cells that do not function properly, leading to abnormal growth. Which process does not function normally in cancer cells?
1. Osmosis
2. Cell cycle
3. Photosynthesis
4. Cellular Respiration

Answers

Answer:

cellular corrert me if I am wrong

Explanation:

have a nice day baby

Can a person keep a ringneck dove and a diamond dove together?

Answers

Answer:

Ringnecks and diamond doves can be kept as pets in a variety of ways. They can be a single bird, bonded to its owner with or without free flight within the home, or they can be a breeding pair, bonded to one another, producing young

4) Spindle fibers form
Which of the following choices places the processes in order as they occur during the cell cycle?

Answers

Answer:c

Explanation:

Answer:

its c

Explanation:

E. coli Is a species of bacteria that causes many different Infections in humans. Certain E. coli strains have developed resistance to antibiotics,
making Infections with these strains difficult to treat. How do bacteria such as E. coll, which reproduce asexually, galn new tralts such as
antibiotic resistance?
O A. by adapting to changes in environmental conditions without undergoing changes in their DNA
OB. by mutating their DNA in response to environmental conditions to gain beneficial traits
OC. by undergoing spontaneous mutations when they replicate, which increases genetic variation in a population
OD. by producing offspring with new gene assortments from genetic recombination, which increases diversity in a population

Answers

Answer:

The correct answer would be B

Explanation:

Antibiotic resistance in bacteria develops in response to the environment in which the bacteria survives.  

The antimicrobial resistance trait is acquired by any species of bacteria through one of the two ways that are either by making changes in their DNA sequences or through horizontal gene transfer mechanisms.

In the given E. coli gained the trait to develop resistance against antibiotic by making changes in their DNA as once the gene is altered or mutated, the trait can be passed on to the offsprings.

Therefore, Option-B is the correct answer.

Answer:

B. By mutating their DNA in response to environmental conditions to gain beneficial traits

Explanation:

Through the process of natural selection, bacteria such as E coli can gain new traits that benefit them.

This can occur when a DNA mutation occurs, where the mutated gene is actually beneficial to respond to environmental conditions.

Then, these bacteria with the gene will survive and produce more offspring with the same gene. This is how E coli can develop antibiotic resistance.

So, B is the correct answer.

when a plant is limp ot has lost its water tehough ______if you water ir ir should perk up

Answers

Answer:

A Pothos is what the plant is called

Which best defines genes?

Answers

A gene is the basic physical and functional unit of heredity. Genes are made up of DNA. Some genes act as instructions to make molecules called proteins. ... Alleles are forms of the same gene with small differences in their sequence of DNA bases

Pls help if u know the answer
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Marley has a vegetable garden in her yard. During a recent storm, heavy rains fall and some of her garden soil is watch away. Which term BEST describes the movement of the soil from one place to another?

Erosion
Runoff
Deposition
Weathering​

Answers

Answer:

runoff

Explanation:

A mitochondrion has two membranes. The inner membrane is highly folded, as shown in the diagram below.
Outer
membrane
Inner
membrane
The folds greatly increase the membrane's surface area. This improves the ability of the mitochondrion to do
which of the following?
O convert solar energy to chemical energy
Odigest metabolic wastes in the organelle
O produce ATP during cellular respiration
move the cell through water

Answers

Answer:

convert solar energy to chemical

Explanation:

the mitochondria is the power house of the cell

The folds greatly increase the membrane's surface area. This improves the ability of the mitochondrion to produce ATP during cellular respiration. Thus, the correct option is C.

What is Cellular respiration?

Cellular respiration is the process through which biological fuels are oxidized in the presence of an inorganic electron acceptor in the cell such as oxygen to produce large amounts of energy, to drive the bulk production of ATP (Adenosine triphosphate) in the mitochondria.

A large number of folds are present in the mitochondrial membrane to increase the capacity of the mitochondrion to synthesize ATP molecules, the inner membrane of the mitochondria is folded to form cristae in the membrane. These folds allow a much greater amount of electron transport chain (ETC) enzymes and ATP synthase to be packed into the mitochondrion membrane.

Therefore, the correct option is C.

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What is an organism’s phenotype? its specific set of physical traits. the number of genes in its genome. its specific set of genes. the number of nucleotides in its genome

Answers

Answer:

A

Explanation:

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Which organelle is most like a factory delivery driver?.
lysosome
O endoplasmic reticulum
O cytoplasm
nucleus

Answers

endoplasmic reticulum

Answer:

its B               good luck

Explanation:

12. Compare and Contrast the relationships between the speed of electromagnetic
and mechanical waves as they travel through different mediums. YOU must
write at least 8 sentences.

Answers

Answer:

Compare and Contrast the relationships between the speed of electromagnetic  and mechanical waves as they travel through different mediums is explained below in details.

Explanation:

As per the mechanism, the waves can be distinguished as electromagnetic and mechanical waves. Electromagnetic waves are those fluctuations that have no mechanism to progress whereas mechanical waves demand a mechanism for their communication. Electromagnetic waves progress in a vacuum whereas mechanical waves don't have.

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