All cells must have?

Answers

Answer 1

Answer:

All cells share four common components: (1) a plasma membrane, an outer covering that separates the cell's interior from its surrounding environment; (2) cytoplasm, consisting of a jelly-like region within the cell in which other cellular components are found; (3) DNA, the genetic material of the cell; and (4)

Explanation:

Answer 2

Explanation:

In order to accomplish them, they must have: A cell membrane that separates the inside of the cell from the outside. By concentrating the chemical reactions of life inside a small area within a membrane, cells allow the reactions of life to proceed much faster than they otherwise would.


Related Questions

What is viviparity so Confusing​

Answers

examples of it: human beings , dogs, cats,elephants, these are viviparous

Answer: Viviparity is characterized by the retention of fertilized eggs in reproductive tract of the female. This condition is very common in vertebrates, but relatively rare in invertebrates, including insects. ... The viviparity is characterized by the retention of fertilized eggs in reproductive tract of the female

Explanation:

explain how environmental factors affect the rate of transpiration in flowering plants​

Answers

Explanation:

there are a couple of environmental factors that affect the rate of transpiration. they include:

I) wind:in a windy environment there is easy movement of moisture hence it does not accumulate on the leaf surface. this helps to increase diffusion gradient between the intercellular spaces in the leaf and in the environment there4 the rate of transpiration is increased. in a calm environment moisture accumulates on the surface of a leaf there4 reducing the diffusion gradient there4 reducing the rate of transpiration

ii) atmospheric pressure :in low lands there is high atmospheric pressure than in the highlands. the more the atmospheric pressure the more the pressure exerted on the cells of the leaves there4 reducing the rate of transpiration.

iii) humidity:the more the humidity in the atmosphere the less the rate of transpiration. this is due to low diffusion gradient due to accumulation of water vapour on the surface of the leaf

iv) temperature:a rise in temp increases the water vapour holding capacity of air in the air spaces within the spongy mesophyll layer. the water vapor pressure in the intercellular spaces increases causing an increase in diffusion gradient between the intercellular spaces and the environment there4 increasing the rate of transpiration. decrease in temp decreases the water vapor holding capacity in the intercellular spaces there4 diffusion gradient is lowered there4 reducing the rate of transpiration.

which two organisms have a notochord?

Human, Sponge, Tunicate, Choanoflagellate

Answers

Answer:

it is Tunicate

Explanation:

Process of change by which descendants come to differ from their ancestors


A. Evolution

B. Natural Selection

C. Phenotype

D. Variation

Answers

A)

Evolution

Explanation:

This process is called evolution.

The scientific theory of evolution was firstly proposed by the English naturalist and biologist Charles Darwin. Observations on the change of heritable characteristics from one generation to the next led to the introduction of the term evolution. According to Charles Darwin, evolution happens by natural selection

The answer would be C

How is an enzyme related to its substrate?

Answers

Answer:

An enzyme will interact with only one type of substance or group of substances, called the substrate, to catalyze a certain kind of reaction. Because of this specificity, enzymes often have been named by adding the suffix “-ase” to the substrate's name (as in urease, which catalyzes the breakdown of urea

Explanation:

it binds its substrate

Gregor Mendel's research consisted of using parent pea plants that were pure breeds. What genotype(s) would be considered pure breeds? (use the letter "B" and/or "b" in your genotype) *

Answers

Answer:

The genotypes thatwould be considered pure breeds are BB and bb

Explanation:

The genotype of an organism refers to an organism's complete set of genetic material or genes.

Genes are units of DNA that carries information for a particular physical or functional trait or character in an organism. Some genes act as instructions to make proteins while some genes do not code for proteins. The proteins made by a gene expresses the traits and characters of that organisms. Genes for a particular trait may have one or more variants known as alleles.

In Gregor Mendel's research using pea plants, flower colour in a pea plant had two different alleles; one for red flower colour and one for white flower colour. If a plant had the same allele for flower colour, the plant was considered a pure breed.

For example, given B was the allele for red flower colour and b was the allele for white flower colour, a plant having the two alleles for white flower colour bb, is a pure breed. Similarly, a plant having the two alleles for red flower colour, BB is a true breed.

After Elijah dropped a pass in an important football game, he became depressed and vowed to quit the team because of his athletic incompetence. His counselor challenged his illogical reasoning and pointed out that Elijah’ “incompetence” had earned him a athletic scholarship. The psychologist’s response was most typical of __________________ therapy.

A. Behavior

B. person-centered

C. psychoanalytic

D. rational-emotive

Answers

Answer:

D. rational-emotive

After Elijah dropped a pass in a crucial football game, he became depressed and believed that it was due to his incompetence; however, a counselor challenged his illogical reasoning, and this is a rational-emotive therapy that is present in Option D.

What is the significance of the therapy?

There are various types of therapy, such as psychological therapy, in which the patient with mental health problems can be evaluated by a counselor, and there are separate sessions depending on the severity of the issue, and the counselor helps the patient overcome such pain and depression to lead a normal and healthy life.

Hence, after Elijah dropped a pass in a crucial football game, he became depressed and believed that it was due to his incompetence; however, a counselor challenged his illogical reasoning, and this is a rational-emotive therapy that is present in Option D.

Learn more about the significance of the therapy here.

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Can someone help me with this question

Answers

The mother can give her blood because o can give to a,b,ab, and o but no ab can not give so the answer would be no only his wife

Which human organ system eliminates liquid and gaseous wastes from the body?
(1) circulatory (2) endocrine (3) excretory 4) reproductive

Answers

Excretory

This is the answer.

I'm doing a course on animal welfare and this is the question. How would you answer it?

Answers

I would choose the second option because animal are not objects that don’t feel anything they kinda like human(they have feelings).

what is the process when animals excrete water from their pores

pls help me I need help with this science answer​

Answers

Answer:

I believe its called Excretion!

Explanation:

- Eijiro <3

GIVING BRAINLIEST!!!

What form (Solid, liquid, and gas) is water in for each part?:

Answers

Answer:

Ice, Water and Water Vapor

Answer:

I do not see answer choices but I will try my best to explain.

Explanation:

Solid, means a shape. Solids are hard and generally keep their shape relative to heat. Some solids, like ice, can be cold, others can be hot.

Liquid means it fits in a container but can roam freely. Think of water in a pool but if the pool breaks it flows anywhere. This can be hot or cold.

Gasses has no limit. Its everywhere and cannot be contained in one single place because of how much the particles move. Think of water vapor for this one, it can be hot or cold.

Please give brainliest, have a great day!

Kevelyn dreams that 12 monkeys are dancing in a circle around her while she sits on a stool and eats a banana. This description of Kevelyn’s dream contains _________ content.

A. transference

B. latent

C. lucid

D. manifest

Answers

The subconscious psychological meaning of a dream is its latent substance. This symbolically veiled content may be painful or traumatic. Therefore, option (B) is correct.

What is latent content of dream?

In Freudian dream analysis, content refers to both the Latent and manifest elements of a dream, or both the overt meaning of the dream and the dream as it is remembered. Dreams represent the uncontrollable mental events that occur during various stages of sleep.

The hidden psychological significance of a dream is its latent content. Because it could be distressing or traumatic, this content frequently makes symbolic appearances in disguise and contains things that are hidden from conscious awareness.

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In this relationship, the candiru is a fish that lives in freshwater. Humans use the freshwater to swim in. Humans may urinate in the water. The candiru detects fresh urine and swims up the urethra or anus of the human. In the urinary tract, it spreads spines out and lodges itself in the human. It will then suck on tissue and blood from the urethra from the human over a long period of time. The human is hurt and could die from this, if left untreated over time. What type of interaction is this? *

Answers

The answer is: Parisitism

When was the structure and function of DNA discovered?
A. 1944
B. 1949
C. 1953
D. 1961

Answers

Answer:

C : 1953

Explanation:

The discovery in 1953 of the double helix, the twisted-ladder structure of deoxyribonucleic acid (DNA), by James Watson and Francis Crick marked a milestone in the history of science.

Answer:

c. 1953

On February 28, 1953, Cambridge University scientists James D. Watson and Francis H.C. Crick announce that they have determined the double-helix structure of DNA, the molecule containing human genes.

1.day lamps the simbolize inner light


Pls answer This Question ​

Answers

Deepa - lights Indians light outside their homes to symbolize inner light.

I need help please!!!!!!!!

Answers

Answer:

No image so what help do you need

The American Black Bear lives in many parts of North America. A black bear in Colorado might hibernate for three or more months in the winter, while a black bear in Florida may hibernate for only a few weeks, or not at all. Which statement best explain why?

A. Florida black bears are a different species from Colorado black bears.
B. Florida black bears hibernate less because their climate is not as cold.
C. Florida black bears have less territory and cannot risk a long hibernation.
D. Florida black bears eat different food from bears in Colorado and need less rest.

Answers

C. Florida black bears have less territory and cannot risk a long hibernation.

PLEASE PLEASE PLEASEE SOMEONE PLEASE HELP ME WITH THIS ILL GIVE YOU BRAINLY IF YOU GET IT RIGHT ALSO PLEASE EXPLAIN HOW YOU GOT THE ANSWERS!!!!! PLEASE!!!!! THERE 3 ANSWERS TO THIS THAT A HINT MY TEACHER GAVE US !!!!

Answers

A, E


Step-by-step explanation:

24. The legs of a crocodile and a mouse have similar bone structure and develop in a similar way. Similar
features that originated in a shared ancestor are called
a. Vestigial structures
b. Analogous structures
C. Homologous structures
d. Embryological structures

Answers

Answer:

Homologous structures

Explanation:

Its C

Similar features that originated in a shared ancestor are called Homologous structure. So, the correct option is C.

What is Homologous structure?

Homologous structures are defined as structures that have a common basic structure but perform different functions. For example, the forelimbs of reptiles, amphibians and mammals all have a common ancestor but have been variously modified to perform different activities.

Homologous structures share a similar ancestor as they are modified to perform distinct tasks. Like in the above given example, the legs of a crocodile and a mouse have similar bone structure and develop in a similar way.

Thus, similar features that originated in a shared ancestor are called Homologous structure. So, the correct option is C.

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23 POINTS

Which statement BEST describes the relationship between photosynthesis and cellular respiration?

A
Both processes release energy in the form of heat.

B
Both processes use energy to form molecules of glucose.

C
The products of one process are the reactants in the other process.

D
The products of one process are the same products in the other process.

Answers

Answer:

A

Explanation:

sorry if its wrong

Answer:

Carbon dioxide and water released by cellular respiration are used during photosynthesis. They are both apart of the carbon cycle.

Credits to: Brainly answer.

A post- doctorate position is most likely to be held by Oa geriatric allergist an allergist a pediatric immunologist. A scientific research immunologist .

Answers

Answer:

A scientific research immunologist

Explanation:

A postdoctoral (commonly called postdoc) position is a temporary working position assigned by a particular institution/government agency to investigate questions referred to a particular research field/discipline (e.g., economy, molecular biology, immunology, politics, etc). In general, a postdoc is a 2-year position obtained after Ph.D. (i.e., Doctor of Philosophy) completion. This short-term research position is useful for professionals who require further training in a particular field/discipline, giving the individual more independence than in a Ph.D., which allows the development of technical skills and increases his/her interest in a particular research area.

Answer:

it's A: Protecting the body, excreting wastes, sensing temperature changes, and generating vitamins.

Explanation:

edge 2021

Urgent. will mark brainiest. Explain what happens in the nervous system when your finger is hurt. Please actually answer!

Answers

Motor neurones are activated and the muscles of your arm contract, moving your hand away from the sharp object.

What causes the production of pus?

Answers

Answer:

One of the most common types of bacteria that cause pus formation is Staphylococcus aureus, although any bacterial infection may produce pus. An infection that leads to the production of pus is called a purulent infection.

Explanation:

Explain why a cell is considered the basic unit of life?

Answers

The cell is considered the basic unit of life because everything alive has one or more cells.

three gases are found in
Earth's atmosphere : oxygen
Carbon dioxide and nitrogen.
What is their order of
abundance from greatest
to Least ?​

Answers

Answer:

Nitrogen oxygen and carbon dioxide :)

Explanation:

What is a carrier molecule?

Answers

Answer:

below hun

Explanation:

molecules that are used to carry electrons and hydrogen ions to the last step of cellular respiration.

Answer:

Carrier molecules are proteins and are found in the cell membrane moving various substances, like glucose, in or out of a cell. They also transport electrons through the electron transport chain.

Explanation:

Blood flow causes vibrations in the heart chambers and valves and produces sounds that can be heard with a stethoscope. Evaluate
which of these does NOT necessarily contribute to the sounds detected by the stethoscope as blood passes through the heart.
A) iron level is the blood
B) velocity of the blood during motion
C) viscosity of the blood as it moves through the heart
D) density of the blood as it is pumped through the heart

Answers

Answer:A. iron level of the blood

Explanation:

Answer:

A. iron level of the blood

Explanation:

All of the other properties are physical properties that can be detected by vibrations picked up by the stethoscope. The chemical property, iron level, will not necessarily be detected by the stethoscope but may contribute to poor cardiac health.

Gas exchange between humans and plants involves
A. humans giving NH3 to plants and plants giving H2O to humans

B. humans giving H2O to plants and plants giving H2O2 to humans

C. humans giving O2 to plants and plants giving CO2 to humans

D. humans giving CO2 to plants and plants giving O2 to humans

Answers

Answer:

D

Explanation:

Humans giving CO2 to plants and plants giving O2 to humans.

Answer:

D. humans giving CO2 to plants and plants giving O2 to humans

Explanation:

Hope this helps

Which process most increases the amount of
phosphorus available for use in the ecosystem?

Answers

the overuse of fertilizers and over-enrichment with nutrients will lead to increasing the amount of phosphorus concentration in agricultural runoff.
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