What is a prokaryote?

Question 3 options:

organism that does have a nucleus


organism that does not have a nucleus


organism that is multicellular

Answers

Answer 1

Answer:

a microscopic single-celled organism that has neither a distinct nucleus with a membrane nor other specialized organelles. Prokaryotes include the bacteria and cyanobacteria.

Explanation:


Related Questions

What is the Law of Universal Gravitation and how did it differ from the understanding of the motion before Newton theorized it?

How do you think Newton’s discoveries help to pave the way for his Three Laws of
Motion?

Answers

Answer:

While Copernicus rightly observed that the planets revolve around the Sun, it was Kepler who correctly defined their orbits. At the age of 27, Kepler became the assistant of a wealthy astronomer, Tycho Brahe, who asked him to define the orbit of Mars. Brahe had collected a lifetime of astronomical observations, which, on his death, passed into Kepler’s hands. (Brahe, who had his own Earth-centered model of the Universe, withheld the bulk of his observations from Kepler at least in part because he did not want Kepler to use them to prove Copernican theory correct.) Using these observations, Kepler found that the orbits of the planets followed three laws.

Why Do Blood Cells Form Sickle Shapes?

Answers

Answer:

it is because of a mutation in the hemoglobin gene

9. Which food would you expect to have the lowest lipid levels?
a. Olives
b. Pistachios
c. Wheat crackers
d. Sesame seeds

Answers

This answer should be B because nuts have really low lipid levels

The food expect to have the lowest lipid levels is sesame seeds. The correct option is d.

What is lipid?

Lipids are hydrocarbon-containing molecules that serve as the foundation for the structure and function of living cells.

Lipids include fats, oils, waxes, vitamins (such as A, D, E, and K), hormones, and the majority of the cell membrane that is not made of protein.

Carbon, hydrogen, and oxygen are the same elements found in lipids as they are in carbohydrates.

Lipids, on the other hand, are primarily composed of hydrocarbon chains and contain fewer polar hydroxyl groups. As a result, most lipids are nonpolar hydrophobic molecules.

Sesame seeds are high in saturated fat (15%), polyunsaturated fat (41%), and monounsaturated fat (39%).

According to research, eating more polyunsaturated and monounsaturated fat than saturated fat may help lower your cholesterol and reduce your risk of heart disease.

Thus, the correct option is d.

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how did the spread of homo-sapiens from Africa to other continents likely influence populations of other organisms

Answers

Answer:

it was before the continent drift the homosapiens travelling habitated the most parts of world

Check all of the BIOTIC factors in an ecosystem.

THE SUN
TREES
ANIMALS
PLANTS

Answers

Answer:

B.Trees C.Animals & D.Plants are all biotic factors

Explanation:

A biotic factor is a living factor on an ecosystem, the sun is an abiotic factor because it is nonliving.

#5 Which statement is true in regards to DNA mutations? *
Mutations can lead to positive adaptations in an organism
all mutations result in a change in protein formed
mutations are not present in unicellular organisms
all mutations are negative and lead to diseases

Answers

Answer:

Mutations can lead to positive adaptations in an organism

What, in general, can you infer about the energy per square meter at the equator?

Answers

Answer:

0-degrees latitude, at the equator. The temperatures would be higher because the radiation from the sun is more direct. The overall energy is greater per square meter because the sunlight is more direct.

Can a species become extinct independent of a mass extinction event? How many species have to go
extinct for it to qualify as a mass extinction?

Answers

Answer: I cant say for sure how many species have to be extinct. But yes a species can become extinct.

Explanation:

According to cell theory, which activity is impossible?

Answers

Cells being formed from pure water

Answer:

Liver cells being generated by air

Explanation:

A P E X

Give an example of a genetic factor determining the growth of an organism. Give an example of an environmental factor determining growth of an organism.

Answers

Explanation:

Examples of genetic factors could include large breed cattle and species of grass affecting growth of organisms.

Similarly, drugs, chemicals, temperature, and light are among the external environmental factors that can determine which genes are turned on and off, thereby influencing the way an organism develops and functions.

Which statement about oogenesis is correct?

A. Diploid secondary oocytes undergo meiosis II to form a haploid ootid cell and a polar body.
B. Two diploid secondary oocytes undergo meiosis II to form four haploid ootid cells.
C. Haploid secondary oocytes undergo meiosis I to form a haploid ootid cell and a polar body.
D. Haploid secondary oocytes undergo meiosis II to form a diploid ootid cell.

Answers

A is correct. At the end of meiosis II there are 3 polar bodies and one octet that are all haploid.

The statement which is true about oogenesis is that the diploid secondary oocytes undergo meiosis II to form a haploid ootid cell and a polar body. Thus, the correct option for this question is A.

What is Meiosis?

Meiosis may be defined as a type of cell division in which each parental cell is divided into four daughter cells. These daughter cells are genetically unique to the parental cells and are haploid in nature. Germ cells (gamete cells) are typically divided through this mode of cell division.

Oogenesis may be characterized as the process of female gamete formation including the formation of an oocyte from an oogonium followed by meiotic division. During the process of oogenesis, a haploid ootid cell and a polar body are formed with the help of meiotic division.

Therefore, the statement which is true about oogenesis is that the diploid secondary oocytes undergo meiosis II to form a haploid ootid cell and a polar body. Thus, the correct option for this question is A.

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Your friend claims that all mutations are harmful to living things. Do you agree or disagree with this claim? Support your position with:

a description of a genetic mutation and
a scientific explanation of how a mutation may affect an organism such as a tomato, spinach, or strawberry plant.

Answers

Answer:

Explanation:

yes

Answer:

Answer:

Increased Bone Density found in humans which makes the human body stronger, as well as strenthening defense.

Mutations may affect tomatoes my increasing water retention

Explanation:

Explanation:

Help me please!!!!!!!

Answers

4,3  of two the between difference the to sent PaulRegards1,2,4Ode3,

Why is unprotected exposure of eyes to high infrade radiation dangerous?​

Answers

Exposure to infrared light can heat the lens of the eye and produce cataracts over the long term.

This is because it leads to cataracts and skin cancer.

difference between animal cells and plants cells​

Answers

Answer:

A plant cell have a vacuole, chloroplasts and A cell wall

Vacuole - Gives the cell shape

Chloroplasts - Contain a green pigment (turns the plant green) To do with photosynthesis.

Cell Wall - Holds the cell up and keeps it in a rigid structure.

A plant cell contains a large, singular vacuole that is used for storage and maintaining the shape of the cell. In contrast, animal cells have many, smaller vacuoles. Plant cells have a cell wall, as well as a cell membrane. ... Animal cells simply have a cell membrane, but no cell wall.

I need help with the final question please

Answers

25% chance for the child to have Type A blood

Answer:

1 in 4 so 25% ---------------

if humans run out of following resources, which resource would be most difficult to replace

Answers

Answer:

Petroleum

Explanation:

Like all fossil fuels, petroleum is a nonrenewable energy resource. This means that it is a resource that cannot be replaced as quickly as humans use up existing supplies. Humans face a problem because once petroleum reserves begin to run out, there won't be enough fuel to power all the automobiles in the world.

If an organism does not have a nucleus, has only one cell, and can survive in extreme conditions, into which domain would it be classified?

Question 8 options:

Domain Eukarya


Domain Archaea


Domain Bacteria

Answers

The correct answer is Domain Archaea

1 point
5.) No two organisms of the same species are exactly alike. This
may ____allow for some members of the species to______
if their environment suddenly (or gradually) changes.

Answers

I think the sentence should read “This variation may allow for some members of the species to adapt if their environment....”

Chemical reactions that take place in living things are called biochemical changes. Identify at least 3 biochemical changes

Answers

Answer:

This is referred to as metabolism . Metabolism includes both exothermic (heat-releasing) chemical reactions and endothermic (heat-absorbing) chemical reactions. Did this help?

Credits to bio lebre texts.

Why are DNA fingerprints are more reliable than hand fingerprints in solving crimes.

Answers

Answer:

Fingerprints are still the most cost-effective and reliable way to identify people: ... No two fingerprints have ever been identical in the many millions of comparisons. Fingerprints solve ten times more unknown-suspect cases than DNA fingerprinting.

Explanation:

HELP which one?
Please don’t lie I need help

Answers

Answer:

option B is correct answer of this question

crust ,mantle,core

hope it helps

Answer:

Each layer has its own properties, composition, and characteristics that affects many of the key processes of our planet. They are, in order from the exterior to the interior – the crust, the mantle, the outer core, and the inner core.

Explanation:

Change to hypothesis

What effect does the water temperature have on solution rate?

Answers

As the temperature of the water increases so does the solution rate as the atoms gain more energy therefore there will be more frequent collisions.

Some seeds are endosed in a sweet, fleshy fruit. How would damage to the vascular tissue (Xylem and pholem, affect the developing fruit? A.Damaged vascular tissue would cause the developing fruit to accel in growth.
B . It would not affect the developing frut but it would affect the flower.
C. Damaged vascular tissue could cause the fruit to not completely develop or even develop at all.
D.The xylem and pholem are not parts of a plant and therefore would not affect anything.​

Answers

Answer:

C. Damaged vascular tissue could cause the fruit to not completely develop or even develop at all.

Explanation:

If the vascular tissues such as xylem and phloem are damaged, the fruit does not completely develop because the food that is produced in the leaves does not reach to the seed. The xylem helps in the transportation of water from the soil that is necessary for making of food during the process of photosynthesis so damaged xylem will not produced food and no food will be transported from leaves to seeds and if some food is produced by the leaves the phloem does not transport it to the seeds.

How do stars generate light? Select the BEST answer.

A. Hydrogen fuses into helium generating a great deal of energy

B. The chemicals in the star glow giving off light

C. Chemicals burn to cause the light

Answers

i feel like c is the best answer because stars burn out so it’s like a candle i guess ? that’s my best guess but good luck

Answer:

A. Hydrogen fuses into helium generating a great deal of energy

Which is NOT a characteristic that all animals share? heterotrophs unicellular cells with a nucleus

Answers

Answer:

animals are multicellular

Explanation:

2.1) What are two differences between plant and animal cells?

Answers

Answer:

Major structural differences between a plant and an animal cell include: Plant cells have a cell wall, but animals cells do not. Cell walls provide support and give shape to plants. Plant cells have chloroplasts, but animal cells do not.

Answer:

plant cells have cell wall

plant cells have a single large vacuole

animal cells don't have cell wall

animal cell have many smaller vacuole

hope it helps

What is the process through which materials move across the cell membrane
A osmosis
B diffusion
C mitosis
D meiosis

Answers

Osmosis is the answer good luck

Brown eyes are dominant over blue eyes. Show the possible outcomes of offspring between a heterozygous brown-eyed male and a blue eyed female. Use the letter B

Answers

No brown eyes take the W bc we are

YO PLZ HELP MEH!!!!
3. _________ are vesicles that use oxygen to break down toxic substances in the cell.
a. Transport vesicles
b. Lysosomes
c. Peroxisomes
d. None of the above

Answers

peroxisomes is that answer
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