the cells of most prokaryotic cells have a what?

Answers

Answer 1

Answer:

hello Prokaryotes are unicellular organisms that lack organelles or other internal membrane-bound structures. Therefore, they do not have a nucleus, but, instead, generally have a single chromosome: a piece of circular, double-stranded DNA located in an area of the cell called the nucleoid.


Related Questions

bacteria that feed off of food in human gut and provide essential nutrients to their host are an example of

Answers

Answer:hmmm

Explanation:

Thiamine, folate, biotin, riboflavin, and panthothenic acid are water-soluble vitamins that are plentiful in the diet, but that are also synthesized by gut bacteria. Likewise, it has been estimated that up to half of the daily Vitamin K requirement is provided by gut bacteria

which statement about force is incorrect?
a. force causes changes in the motion and energy or matter.
b. some forces cause objects around us to move.
c. force is the ability to change motion and transfer matter.
d. some forces keep objects around us from moving​

Answers

Answer:

c.) force is the ability to change motion and transfer matter

Explanation: just took the quiz so this answer is reliable!

describe how enzymes affect biochemical reactions.

Answers

i dont kno if its wrong or right

but enzymes work by lowering the activation energy of chemical reactions

Explanation:

I guess they just built different

What human body system does Zygomycota attack

Answers

Answer:

I beleive that it is

The condition may affect the gastrointestinal tract or the skin. In non-trauma cases, it usually begins in the nose and paranasal sinuses and is one of the most rapidly spreading fungal infections in humans. Common symptoms include thrombosis and tissue necrosis.

Hope it helps!✌

Explanation:

Answer:

it's fungus typically inhaled or ingested and could potentially affect any body system

Why did the directions instruct you to draw your observations instead of just writing them down?

Answers

According to educational professionals, drawing (or making “Doodle Notes”) observations or notes forces both the left and right hemispheres of your brain to be engaged. When learning new content/ reviewing old content, engaging both hemispheres of the brain allows for that information to be stored as a long term memory, not just a short term regurgitation.

In what phase does the process shown in the image happen in? (see image below)
Cytokinesis
S phase of Interphase
G1 phase of Interphase
Mitosis
G2 phase of Interphase

Answers

Answer:

S phase

Explanation:

How does the use of wild-life/animals impact on the earth?​

Answers

Answer:

Hope it helps...

Explanation:

Animals help us to save our environment. Some micro organisms such as bacteria help us clean the environment; others help plants by converting free nitrogen from air and feeding the roots. Some insects and earthworms help in agriculture by increasing fertility of the soil and also by increasing organic quality of soil.

Answer:

When a predator goes extinct, all of its prey is released from that predation pressure, and they may have big impacts on ecosystems. If there are too many deer, for example, they can really change the ecosystem because they can destroy forests, and they also carry diseases.

Where within the cell does the process of respiration take place?
A. Inside the mitochondria.
B. Outside of the mitochondria.
C. Both inside and outside the mitochondria.
D. In the chloroplasts.

Answers

It's C, I took the test. Just in case anyone's confused, I know I'm late tho, lol

What three measurements do you need to find the density of a liquid?

Answers

mass, volume, density

How do the molecular formulas for all the amino acids differ?

Answers

The side groups are what make each amino acid different from the others. Of the 20 side groups used to make proteins, there are two main groups: polar and non-polar. These names refer to the way the side groups, sometimes called "R" groups, interact with the environment.

The molecular formulas for all the amino acids differ - the R group or side chain.

Each amino acid has the same molecular structure with a central carbon atom, the alpha (α) carbon, bonded to an amino group (NH2), a carboxyl group (COOH), and to a hydrogen atom.

Each amino acid is exactly the same except for the R group. little side chain represented by the will be different depending on the kind of amino acid.For example, glycine has a hydrogen atom as its R group, whereas alanine has a methyl group (CH3).

Thus, the molecular formulas for all the amino acids differ - the R group or side chain.

Learn more about:

https://brainly.com/question/7459905

HELP ASAP 20 POINTS!!!!!!!!!!!!
2 ANSWERS

Answers

Answer:

A, and D

Explanation:

its the answer I believe

Answer:

Nitrogen, Calcium

Explanation:

im pretty sure.

Someone help me with this

Answers

Answer:

water, positive

Explanation:

Plants that thrive in this type of climate are most likely adapted to which of these conditions

Answers

Answer:

Plants Adapting

Explanation:

Plants adapt to their environment from necessity. Plants may also adapt by growing lower and closer to the ground to shield themselves from wind and cold. Desert environments may have some of the following adaptations, these help the plant to conserve food, energy and water and still be able to reproduce effectively.

I can not fully answer your question because I do not know these conditions, did your teacher give a list?

WILL GIVE BRAINLIEST!!!!!!!
Which of the following is NOT a form of Nitrogen found in the Nitrogen Cycle?

nitrite

nitric acid

nitrate

ammonia

Answers

Answer:

ammonia i think my guess

Explanation:

Answer:

ammonia

Explanation:

Identify the substance.
cholesterol

A.carbohydrate
B.lipid
C.nucleic acid
D.protein
thank you :)

Answers

Your answer is B.lipid
It lipid so answer b

Which of the following is not a factor that is required for the formation of hurricanes?
A: Very high winds in the upper atmosphere
B: Ocean temperatures of atleast 80 degrees F
C: Low winds in the upper atmosphere
D: Warm, moist air

Answers

Answer:

Either A or C

Explanation:

Answer:

Hurricanes start with warm and cool climates for them to start. The stronger the climate, the stronger the hurricane is going to be. The winds are very high, going from a category 1, where it does damage bur not a lot, to a 5, where damage is really bad in some areas. So, your correct answer is C because in the hurricane, there needs to be high winds for it it become a hurricane

Explanation:Please give Brainlyest

which statement is correct?
electrons of a neutral atom always equal the number of protons.
neutrons always equal the number of protons.
atomic weight is identical to atomic mass.
neutrons always equal the number of electrons. ​

Answers

Answer:

B) The number of neutrons always equals the number of protons.

Explanation:

Answer:

B) The number of neutrons always equals the number of protons.

Explanation:

emilythompson35464

hope this helps srry if it doesn't tho

Which of the following is a necessary reactant for cellular respiration to occur? A.Carbon dioxide B.Nitrogen C.Oxygen D.Water​

Answers

Answer is C. Oxygen

Answer:

C.Oxygen

Explanation:

what controls traits and inheritance

Answers

Answer:

In the explanation. :)

Explanation:

An organism's traits are controlled by the alleles it inherits from it's parents. Some alleles are dominant, while other alleles are recessive.

Hope this helps. Have a great day!

2. What is the process of making energy within mitochondria called?

Answers

Answer:

Mitochondria Function

Explanation

Cellular respiration is the process of making ATP using the chemical energy found in glucose and other nutrients. In mitochondria, this process uses oxygen and produces carbon dioxide as a waste product.

I took biology last year so I had to dig out my old notes. The correct answer should be mitochondria function. good luck :)

compared to the surface temperature and luminosity of massive stars in the main sequence, the smaller stars in the main sequence are

Answers

Answer:

Betelgeuse

b.Polaris

c. Aldebran

d.Sirius

e. The Sun

Explanation:

arent sure

In comparison with the surface temperature and luminosity of massive stars in the main sequence, the smaller stars in the main sequence are: cooler and less luminous.

A star is a giant astronomical or celestial object that contains a luminous sphere of plasma and bounded together by its own gravitational force.

Generally, a star typically comprises two (2) main hot gases and these are:  

I. Hydrogen (H).

II. Helium (He).

Main sequence refer to stars that can fuse hydrogen atoms in its core, to form helium atoms.

Some examples of a main sequence include the following;  

Sun (closest to planet Earth). Antares. Canopus. Vega. Betelgeus.

The luminosity of a star can be defined as the total amount of light radiated by the star per second. Also, it is measured in Watts (W).

In conclusion, smaller stars in the main sequence are cooler and less luminous than massive stars in the main sequence.

Find more information: https://brainly.com/question/19410708

How might the role of the mucous membrane in the lungs be different from the role of the cell membrane surrounding a normal blood cell ?

Answers

Answer:

Mucous membrane, membrane lining body cavities and canals that lead to the outside, chiefly the respiratory, digestive, and urogenital tracts. Mucous membranes line many tracts and structures of the body, including the mouth, nose, eyelids, trachea (windpipe) and lungs, stomach and intestines, and the ureters, urethra, and urinary bladder.

Water molecules can stick to other water molecules through which type of
bond?
Covalent
lonic
Oxygen
Hydrogen

Answers

Answer:

Hydrogen Bonds

Explanation:

Hydrogen bonds allow for hydrogens to bond to each other. They are the strongest type of intermolecular bonds.

Hydrogen bonds are dipole-dipole, and when water molecules are close to each other, the hydrogen bonds form between the hydrogen atoms.

Answer:

hydrogen bonds

Explanation:

this type of bond allows hydrogen atoms to bond together.

what is europhication​

Answers

Answer:

Eutrophication, the gradual increase in the concentration of phosphorus, nitrogen, and other plant nutrients in an aging aquatic ecosystem such as a lake. The productivity or fertility of such an ecosystem naturally increases as the amount of organic material that can be broken down into nutrients increases.

excessive richness of nutrients in a lake or other body of water, frequently due to runoff from the land, which causes a dense growth of plant life and death of animal life from lack of oxygen.

Which of the cells pictured below is in an isotonic solution?

Answers

Add a picture so I can tell you
Please add picture thank you

What is the difference between determination and differentiation?

Answers

Answer:

determination is the process in which embryonic stem cells commit to one specialized function. differentiation is the process in which cells develop their specialized shapes and functions. determination has to happen for differentiation to occur.

Answer:

the answer is as follow Determination implies a stable change . Differentiation follows determination.  determination has to happen for differentiation to occur.

Explanation:

Hey
How do you take good notes? and study them

Answers

Answer:

i don't really take notes sorry

Explanation:

Answer:

If you want to take good notes you must find your own way to remember them

Explanation:

Alchemy is the process of trying to turn non-gold metals into gold. It was practiced hundreds of years ago by scientists who believed that with the right amounts of heat or chemical reactions, they could make gold. After years of experiments and observations, gold was never produced. Which best describes the practice of alchemy? Alchemy was scientific, because scientists practiced it. Alchemy was scientific, because it included observations and experiments. Alchemy was pseudoscientific, because beliefs came before any observations of success. Alchemy was pseudoscientific, because some successful experiments inspired others.

Answers

Answer:

Alchemy was scientific, because it included observations and experiments

Explanation:

Scientific research is one that is done through a series not steps or methods. Observation and experiments are part of the steps in a scientific research.

Scientific research is done through investigation of various theories of science as well as formulating hypothesis. Scientists do not just resort to picking random answers concerning the phenomenons around us. They carry out investigations, observations, and would also formulate potential explanations for what is on ground, carry out experiments and then analyze their results to know if they are right or wrong.

Since the question says observation and experiments were done it is scientific

Answer:

C.

Explanation:

TRUSTTTTT MEEEEEE I TOOK THE TEST AND GOT IT RIGHTTTT TRUSTTTTTT

Blood is considered to be a tissue (or group of cells)because blood –
a. Flows inside arteries and veins
b. Is necessary to carry oxygen and nutrients to the cells
c. Is pumped from the heart and is carried to the cells through arteries
d. Is composed of red and white blood cells working together and having specific functions

Answers

Answer:

Answer D is the correct option among 4

How might the lack of water affect life process at the cellular level and how would this affect an organism?

Answers

Answer:

Water creates pressure inside the cell that helps it maintain shape. ... Without water, cell membranes would lack structure, and without proper membrane structure, cells would be unable to keep important molecules inside the cell and harmful molecules outside the cell.

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