what is not a main principle of the cell theory?

a-cells are the basic unit of structure and function in living things

b-new cells are produced from existing cells

c-all cells enclose their DNA within a nucleus

d-all living things are made of cells

Answers

Answer 1

Answer: c not all cells have a nucleus (prokaryotic cells don’t)

Explanation:


Related Questions

Can someone please helpppppo I’ll mark the brainliest

Answers

Answer:

C [the third one btw]

Explanation:

He believed that evolution gradually [slowly] happened over time.

Hope this helps :D Have a great day

please help i will give brainlist

Answers

Answer:

I think it's c hope I hope I helped if not I'm sorry:(

Option B is i hope
I think it is

Brainliest - Answer Quickly
What is the source of all energy in an lecosystem?

Options:
Cellular Respiration
Photosynthesis
Recycling of Matter
Solar Energy

Answers

Answer:

solar energy

please mark me brainliest..

have a good day

Answer:

SOLAR ENERGY

Explanation:

PLEASE MARK ME AS BRAINLIEST

What is a recessive allele?

Answers

Answer:

A type of allele that when present on its own will not affect the individual. Two copies of the allele need to be present for the phenotype to be expressed.

Explanation:

Answer:

A recessive allele is a variety of genetic code that does not create a phenotype if a dominant allele is present. An allele is a specific variation of a gene, or specific segment of DNA. Different alleles produce slightly different proteins, which function in different ways.

Explanation:

Hope this helps

have a great day!

in what cells, do the cell cycle occur?

Answers

Answer:

In eukaryotic cells, or cells with a nucleus may this help u buddy

eukaryotes cells or cells with a nucleus

what is reduced soil?

Answers

Answer:

A chain of reactions is initiated upon soil flooding leading to reduced (low) soil redox potential (Eh, mV) conditions. These reactions include physical, chemical and biological processes that have significant implications for wetland plants.


Physical processes include restriction of atmospheric gas diffusion in the soil leading to depletion of soil oxygen and accumulation of carbon dioxide [4,5]. ... This process leads to oxygen depletion and reduction in soil oxidation reduction potential (Eh) followed by a chain of soil chemical changes.

Ok how about my guinea pig? Please don't report.

Answers

beautiful lolhxoydiylhdljxluflueoyful

Answer:

HELLO AND THANKS

Explanation:

Can someone help me please and thank you!!

Answers

Answer:

It should be the one that's selected in the image.

Explanation:

Triglycerides store unused calories and provide your body with energy. Cholesterol is used to build cells and certain hormones.

Does anyone know the answer?

Answers

Answer:

Fungi

Explanation:

What is a constant?
O a variable
a number that stands alone with no variable
O the number in front of the variable
O two terms that look exactly the same


need help please

Answers

Answer:

a number that stands alone with no variable

Hope this helps!

Which of the following provides the best summary of the process of natural
selection?
A. Populations become better adapted to their environment.
B. Individuals pass on their best traits to their offspring.
C. Individuals always change in response to their environment.
D. Population sizes increase with every generation.
SUBMI

Answers

Answer:

c

Explanation:

Early organisms in the Precambrian era converted to oxygen. O A. sulfur dioxide O B. nitrogen O C. water vapor O D. carbon dioxide​

Answers

Answer:

Early organisms in the precambrian era converted _Carbon dioxide_ to oxygen.

Explanation:

hope it helps plz mark me brainliest

What absorbs water in the digestive system

Answers

Your answer is Small Intestine.

Your small intestine makes digestive juice, which mixes with bile and pancreatic juice to complete the breakdown of proteins, carbohydrates, and fats. Bacteria in your small intestine make some of the enzymes you need to digest carbohydrates. Your small intestine moves water from your bloodstream into your GI tract to help break down food. Your small intestine also absorbs water with other nutrients.

Answer: Small intestine

Either you put small intestine in the wrong place, or you're able to put the same one for multiple questions

Name three sources of atmospheric carbon dioxide. (Write in complete sentences and be very detailed.)

This is science.
First and best answer gets 5 stars, a thanks, and a brainliest!

Answers

Simple and easy but three sources are:
1. Decomposition
2. Ocean Release
3. Respiration

Answer:

Yes, there are natural sources of atmospheric carbon dioxide, such as outgassing from the ocean, decomposing vegetation and other biomass, venting volcanoes, naturally occurring wildfires, and even belches from ruminant animals.[1]

[1](www.climate.gov/news-features/climate-qa/doesnt-carbon-dioxide-atmosphere-…)

True or false scientific name tells you to family in which the organism belong

Answers

Answer:

False

Explanation:

A scientific name for a species is a unique name, which means that no species can have the same scientific name. The scientific name of a species tells you the genus and the species name of an organism. The genus comes first in the name and is the more inclusive group of organisms.

Question 1 (4 points)
(04.01 LC)

Rocks created from the cooling of magma or lava are called (4 points)

Answers

Answer:

igneous rocks

Explanation:

brainliest plz?

Answer:

the answer is igneous rocks

Explanation:

I did the exact same test because I am also from the same school (FLVS)

de
h.
A coolie of 40 kg weight carries 20 kg salt and climbs up 20 steps of 20
centimeters each in 2 minutes. Calculate the work done by him and his power.
[g= 10 m/s2)
ma
OW​

Answers

Explanation:

Given

mass of coolie = 40 kg

Mass of salt = 20 kg

Total mass (m) = 40 + 20 = 60 kg

Displacement (h) = 20*20 = 400 CM = 4 m

Work done (w) = ?

Power (P) = ?

We know we have the formula

work done =force × displacement

or work done = m * g * h

work done = 60×10×4

work done = 2400 joules

Similarly

power = work/time

power = MGH/time

power=60×10×4/120

power=2400/120

power= 20watt

Hope it will help you :)❤

Predict the effect on shrubs growing in one area if they are treated with a compound that blocks electron flow through the electron transport chains of chloroplasts. Provide reasoning to justify your prediction.

Answers

Answer:

The shelves or die and will not be able to produce sugars. Blocking electron flow prevents the formation of the proton gradient required to produce the ATP used for sugar production.

The shrubs will die because they cannot photosynthesize. Without it, plants begin to wilt and finally die because photosynthesis requires light.

In the absence of photosynthesis, do plants die?

In essence, photosynthesis is the mechanism that powers the survival and growth of plants and even algae. The majority of plants would perish quickly if photosynthesis suddenly stopped.

Night-time is not a time when plants engage in photosynthesis. Only when exposed to the right wavelengths of artificial light during the night can plants perform photosynthesis. Light energy is absorbed with the aid of the pigment chlorophyll. Light energy is converted into chemical energy through the process of photosynthesis.

To learn more about photosynthesis refer to:

https://brainly.com/question/19160081

#SPJ2

What is a similarity and a difference between the stars Rigel & Betelgeuse?​

Answers

Stars as large as Betelgeuse are very unusual. In contrast, Rigel, the bright, bluish-white star at the southwest corner of Orion, is smaller and much hotter than Betelgeuse. Although Rigel is smaller than Betelgeuse, it is still a super-giant star compared to the sun.

hope this helps ^^

Answer:

Stars as large as Betelgeuse are very unusual. In contrast, Rigel, the bright, bluish-white star at the southwest corner of Orion, is smaller and much hotter than Betelgeuse. Although Rigel is smaller than Betelgeuse, it is still a super giant star compared to the sun

i hope this helps~

Can someone explain the Punnett square ?

Answers

Answer:

so in the punnet square, you hvae the 4 squares inside the big on. on top of the square, you have 2 letters, representing the dominant and the repressed genes. On one side, typically  the left, you have another two letters, again genes. to get the gene types to fill in your squares, you take the first letter of the top set and the first letter of the side set. for this example, we are going to use Bb(top) and BB(side). you would take the B from the top, and you would pu it with the B from the side. in the top left square, you should have BB. next, you go and take that same top B and do it with the second letter of the side, B again. this again gives you BB.  next, you take the second letter of the top, b, and you join it with B. in the top right square, you would write or type in Bb. Even though the b was on top, it is after the B because in this cause, it is not the dominant gene. when you do the second top and side letters together, you again get Bb.

Explanation:

the main points.

in this example, i used B to be the dominant gene and b to be the repressed/ submissive gene. you always put the dominant gene letter before the repressedmake sure you fill the squares in properly. in this one, you should have 3 BB and 1 Bb. this shows that the gene set BB is going to showwhen you fill in the squares, the first top letter and the first side letter fill in the top left square.the first top letter and the second side letter go left bottom.second top letter and first side letter go in right top.second top and second side go in right bottom.always place the dominant gene first in the punnet square.

add me and message me if you need more help. we can also zoom to figure it out.

The Punnett square is a square diagram that is used to predict the genotypes of a particular cross or breeding experiment. It is named after Reginald C. Punnett, who devised the approach. The diagram is used by biologists to determine the probability of an offspring having a particular genotype.

What is osmoregulation?

Answers

Answer:

adalah penghijauwan kota

Osmoregulation is the active regulation of the osmotic pressure of an organism's body fluids, detected by osmoreceptors, to maintain the homeostasis of the organism's water content; that is, it maintains the fluid balance and the concentration of electrolytes (salts in solution which in this case is represented by body fluid) to keep the body fluids from becoming too diluted or concentrated. Osmotic pressure is a measure of the tendency of water to move into one solution from another by osmosis.[1] The higher the osmotic pressure of a solution, the more water tends to move into it. Pressure must be exerted on the hypertonic side of a selectively permeable membrane to prevent diffusion of water by osmosis from the side containing pure water.

Organisms in aquatic and terrestrial environments must maintain the right concentration of solutes and amount of water in their body fluids; this involves excretion (getting rid of metabolic nitrogen wastes and other substances such as hormones that would be toxic if allowed to accumulate in the blood) through organs such as the skin and the kidneys.

Lloyds lab partner is looking down into a test tube while he hears the contents by using a flame. Which action should Lloyd recommend to his partner if heating must continue?

Answers

Answer:

To stop looking throught the test tube. lol

Explanation:

Which benefits do mangrove trees provide to surrounding coastal wetlands? Check all that apply.

1 . They hold soil in place.

2 . They store floodwaters.

3 . They maintain surface water flow.

4 . They filter water and improve water quality.

plz help people! :) :( :/ :}

i dont know what to dooo!

Answers

Answer:

1, 2, and 4

Explanation:

1. They hold the soil in place because of their tangled root infrastructure

2. They safeguard the shores from storms, floods

4. They sustain the clarity and quality of water, trapping the sediments and filtering pollutants arising from the land

Which statements about freshwater sources are true? Check all that apply. B Only about 3 percent of Earth's water is fresh water Most of the fresh water on Earth is groundwater. About 75 percent of the fresh water on Earth is frozen in ice sheets. The largest source of usable fresh water is groundwater. More fresh water is in the atmosphere than in rivers and lakes. ​

Answers

Answer:

all but 3 percent

Explanation:

because i looked it up

Answer:

groundwater is correct

What is the purpose of the other tube of water?

Answers

Explanation:

cant see photo

Answer:

delude the other thing

there is no picture so i have no idea what your asking. ill edit this answer to be more specific when you explain

Explanation:

Mutations that are passed to offspring must
OCcur
in

Answers

Answer: Gametes

Explanation:

A group of students wants to investigate the effect of the concentration of salt in salt solution (2, 5, 10, 15%) on the growth of the mint plant after three weeks of planting. Write a procedure helping the students to carry out their investigation.

Answers

Answer:cccccccccccccccccccccccc

Explanationccccc

Light-dependent and light-independent reactions occur at the same time. True or False

Answers

true  because they are driven by the ATP made by the light-dependent reactions. Both systems shut down in the dark. The light-independent reactions can last a little longer if there is ATP remaining in the chloroplast.

what is a cell wall and what are its functions ​

Answers

Answer:

a rigid layer of polysaccharides lying outside the plasma membrane of the cells of plants, fungi, and bacteria. In the algae and higher plants it consists mainly of cellulose.

Explanation:

i hope this helps!

Arrange the levels of ecological organizations from smallest to largest

population
organism
community
ecosystem

Answers

Organism, Community, population, ecosystem
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