After studying prokaryotic and eukaryotic cells, what do scientists believe?

Answers

Answer 1

Answer:

Scientists believe that mitochondria evolved from aerobic, or oxygen-consuming, prokaryotes. ... Eukaryotic cells also contain a variety of structures and organelles not present in prokaryotic cells.


Related Questions

How do we know that height in humans
is a polygenic trait and not a single-gene
trait?

A. There is no way to know for sure.

B. People have varying heights.

C. Height is too complex to be controlled by a single gene.

Answers

C.........................

Which organisms have groups of cells arranged into organs?
O A. Unicellular
O B. Multicellular
O C. Prokaryotic
O D. Bacterial

Answers

The answer is B, multicellular.

—Evidence—
•] Organs are differentiated structure formed by group of cells and tissues to perform the similar functions.

What happens to the rate at which the reaction happens when the substrate levels increase?

Answers

Answer:

ok

Explanation:

Why don’t eclipses occur during any other moon phases besides the new and full moon?

Answers

The Sun's (S) shadow cones ( umbras ) of the Moon (M) and the
Earth (E) are revolving, relatively.. When the Moon's umbra sweeps
the Earth's surface, it is solar eclipse. If the Earth's shadow sweeps
the surface of the Moon, it is lunar eclipse. These do not happen in
every New Moon and Full Moon. They happen, when the

E
M
S
, during New Moon, and the

M
E
S
. during Full
Moon, are very near
180
o
, for near-perfect alignment.

The first phase of Mitosis is _________ . In this phase the DNA condenses down into ________, and the duplicated separate. The second phase of Mitosis is_______ . In this phase the sister chromatids line up on the _______ plate through a push and pull motion as they connect to the microtubule spindle fibers emanating from the ________. The third phase of Mitosis is________ . In this phase the________ (sister chromatids or homologous chromosomes) are pulled apart. The fourth phase of Mitosis is_______ . In this phase the nuclear ________starts to reform and the DNA de-condenses.

Answers

The first phase of mitosis is prophase where DNA condenses down into chromosomes and the duplicated separate. The second phase of mitosis is metaphase where sister chromatids line up on the cell plate through a push and pull motion as they connect to the microtubule spindle fibers emanating from the centrosome. The third phase of mitosis is anaphase where sister chromatids or homologous chromosomes are pulled apart. The fourth phase of mitosis is telophase where the nuclear membrane starts to reform and the DNA de-condenses.

MITOSIS:

This question is describing the process of mitosis, a kind of cell division that results in two genetically identical daughter cells. Mitosis consists of four stages namely: prophase, metaphase, anaphase, and telophase etc.

PROPHASE is the first stage of mitosis where DNA condenses down into CHROMOSOMES, and the duplicated separate.

METAPHASE is characterized by the lining up of sister chromatids at the CELL PLATE through a push and pull motion as they connect to the microtubule spindle fibers emanating from the CENTROSOME.

ANAPHASE is the third stage of mitosis in which duplicated chromosome/sister chromatids are pulled apart into opposite poles.

The fourth stage is TELOPHASE where the NUCLEAR MEMBRANE starts to reform and the DNA de-condenses.

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What steps do you think could be taken to help generate jobs and help people and rise out property

Answers

wait sorry i don’t get it text me in the text box

An Autotroph get energy from the sun, not from food.
Tue
False

Answers

Answer:

True

Explanation:

answer sheet of Grade 10 science what I have Learned module 2 Quarter 3​

Answers

i’m sorry but i would like to help but this got me lost

In clouds, water droplets that are too heavy to float form A. rain. В. dew C. thunder. Rescien​

Answers

Answer:

The answer is C because - Water Droplets that are too heavy to float make Rain .

Explanation:

The process of. Produces a new copy of an organisms genetic information which is passed on to a new cell

Answers

what process produces new copy of organisms genetic information?

DNA replication

When light passes into a more dense material, it bends away from the normal

True or false

Answer : Flase

Answers

(つ ^_^ )つ Hey There!

Answer : False, When light passes from a more dense to a less dense substance, (for example passing from water into air), the light is refracted (or bent) away from the normal.

~Hope this Helps!~

The answer is false!

What are the specialized structures inside a cell that perform
important cellular functions called? Would these be found in a
virus? Why or why not?

Answers

Specialized structures: Organelles

Yes you can find them in a virus, organelles enable favourable intracellular environment for several viruses

Describe the conditions under which new species may arise.

Answers

Answer:

Explanation:i dont knowim so sorry

Answer:

New species arise through a process called speciation. In speciation, an ancestral species splits into two or more descendant species that are genetically different from one another and can no longer interbreed.

Explanation:

Biomes are determined by

Answers

Answer:

Biomes are determined by their climate which is determined by percipitation and temperature

Explanation:

There are two main factors when scientists define a biome. One is the climate or the long-time average weather of a region. The other is the specific plants and animals in an area. The organisms in a biome often adapt to their environment. There are seven types of biomes based on these factors.

Hope this helped

what are the limitations of cell theory​

Answers

Answer:

The shortcomings or drawbacks of cell theory are: Viruses are considered as acellular entities or organisms that do not have cell machinery, yet they are taken into account as organisms in this cell theory. Matthias Schleiden and Theodor Schwann did not know the mechanism of the cell.

Explanation:

how does the structure of simple cuboidal connect to its function

Answers

Answer:

Simple cuboidal epithelial tissue is specialized for diffusion and absorption. The reason our kidneys function the way they do is because of the movement of water and salts in and out of the kidney tubules.Likewise, the cuboidal shape of the cells allows greater surface area for absorption to take place.

Which one of the following is the largest source of greenhouse gases in the atmosphere? A. the burning of fossil fuels B. chemicals released during manufacturing C. the release of carbon dioxide from cellular respiration D. Deforestation​

Answers

a is the answer i believe

What is a virus and what cause a viruses​

Answers

Meaning:A virus is a submicroscopic infectious agent that replicates only inside the living cells of an organism. Viruses infect all types of life forms, from animals and plants to microorganisms, including bacteria and archaea.

Causes: Viral infections occur when a virus enters the body and invades the inside of the body's cells in order to reproduce. If the body's immune system is unable to fight off the virus, it multiplies and spreads to other cells, repeating the process and leading to a widespread infection.
A virus is a submicroscopic infectious agent that replicates only inside the living cells of an organism. Viruses infect all types of life forms, from animals and plants to microorganisms, including bacteria and archaea

Please help me with this biology thing.

Answers

Answer:

Answer:

1.

a)dd

b) dd

c) 0%

2.

a) 25%

b) 75%

c) 25%

3.

a) 03

b) 0

c) tt

4.

a) FF x ff OR FF x Ff OR FF x FF

b) Because all the children have freckles

The smooth endoplasmic reticulum Group of answer choices converts sunlight into chemical energy. stores water, nutrients, and enzymes. is the site where lipids destined for other cellular compartments are manufactured. produces the energy needed to run chemical reactions in the cell.

Answers

Answer:

is the site where lipids destined for other cellular compartments are manufactured.

Explanation:

This is because smooth endoplasmic recticulum is an organelles found in eukaryotic organisms that lack membrane bound ribosomes and are found in cells that has much lipids like ovaries, testes, oil glands in the skin e.t.c. They are important in the synthesis of lipids is the site where lipids , Phospholipids, steroid hormones.

They also play a major role in detoxification of harmful metabolic by products and metabolic processes of calcium ions within the cell

Inclusion bodies may contain which of the following?

Polyhydroxybutyrate
Ribosomes
DNA
RNA

Answers

Inclusion bodies contain very little host protein, ribosomal components or DNA/RNA fragments.

Inclusion bodies may contain Ribosome, DNA, and RNA. The correct option is B, C, and D.

What is an inclusion?

It is a type of body that is present in neurons, tissue cells, and like red blood cells, bacteria, viruses, etc. It is a type of protein.

These bodies contain or store fats and sugars in animals and in plants it store glycogen.

Thus, the correct options are B, C, and D.

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In cellular reproduction, ___ ALWAYS occurs in 5’ to 3’ direction

Answers

Answer:

DNA replication

Explanation:

DNA replication is the process whereby the genetic material (DNA) duplicates itself into two identical copies. This process must occur prior to any cellular division (meiosis or mitosis) in order to ascertain that each daughter cell gets an even and correct amount of DNA.

The process of DNA replication begins with the unwinding of the double stranded DNA molecule into two single strands of DNA. One strand called leading strand runs from 3'-5' while the other strand runs from 5'-3'. However, DNA replication proceeds in the 5'-3' direction.

can someone help???? Question: In what domain would humans be included?
A Eukarya
B Archea
C Bacteria

Answers

Answer:

A Eukarya

Explanation:

Answer:

A Eukarya

explanation: Eukaryotes are organisms whose cells have a nucleus enclosed within a nuclear envelope

explain how important is the role of the parents during the earlier stage of development?​

Answers

The Role of parents is important is the early stage of development because parents are there to teach and help the child learn and advance in life

1. Given the following DNA sequence, determine the correct order of amino acids.

GGCATGAGGTAA

2. For this mutated sequence:

• Determine the correct order of amino acids,

• How the two strings of amino acids will differ.

• also circle the mutation

GGAATGAGGTAA

Which of these is the change.

No Change-
1 Amino acid changed-
Premature stop signal -
No stop signal-
1 amino acid added/deleted -
All the amino acids changed after the point of mutation-

Answers

Answer: 1- CCGT ACT CCATT

2- CCTTACTCCATT

Explanation:

A-----T

C-----G

G-----C

T-----A

Please help, (Genetics question)

Answers

The answer is 3

Explanation I just makes sense I don’t know how to explain it but the answer is number 3

Which range best describes the possible number of cells in one organism

Answers

Answer:

ant to whale

Explanation:

When certain molecules accept and then donate electrons, they also pick up H+ ions in the matrix, then release them into the inter membrane space.
As H+ diffuses back into the matrix through ATP synthase, its passage drives the phosphorylation of ADP to ATP. This process is called.............
A.Chemiosmosis
B.Electron Transport Chain
C. Synthesis of ATP
D.ADP phosphorylation

Answers

The answer is going to be A

Which organization would not have to abide by OSHA guidelines?

a. nuclear plant
b. religious-based corporation
c. family run business with only local employees
d. all organizations must abide by OSHA guidelines

Correct ans: Nuclear plant :)

Answers

Answer:

b. religious-based corporation

A set of 23 chromosomes in a human cell
contains 3.2 billion pairs of DNA bases in
sequence. On average, about how many pairs
of bases are in each chromosome?

Answers

Explanation:

The human genome contains approximately 3 billion of these base pairs, which reside in the 23 pairs of chromosomes within the nucleus of all our cells. Each chromosome contains hundreds to thousands of genes, which carry the instructions for making proteins.

The human genome contains approximately 3 billion of these base pairs, which reside in the 23 pairs of chromosomes within the nucleus of all our cells. Each chromosome contains hundreds to thousands of genes, which carry the instructions for making proteins.

What is chromosome ?

A chromosome is a thread-like structure present in the nucleus of cells such as plant, animal and human cells and it is made of a molecule of DNA (Deoxyribonucleic acid) and histone proteins.

It is composed of three components, DNA, proteins and RNA,  amount of the DNA content ranges from 30 to 40 %, the amount of proteins from 50 to 65%, and small amount of RNA from 1 to 10%.

Two types of protein present in DNA such as histone and non-histones proteins, histone constitute large amount (90% of total protein), whereas non-histone is present in small amount (around 10% of total protein).

The histone protein is basic, whereas, the DNA is acidic, so it can be neutralized; DNA in chromosome  is present in two forms such as Euchromatin and Heterochromatin.

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