Answers
Answer:
1. Prokaryotic (about 3.5 to 3.8 billion years ago)
2. Photosynthetic (about 3.4 billion years ago)
3. Eukaryotic (about 2.7 billion years ago)
4. Aerobic (about 2.5 billion years ago)
5. Anaerobic (about 2.4 billion years ago)
6. Multicellular (about 600 million years ago)
Explanation:
I am not completely sure but my research indicates the following in chronological order from the oldest to the newest:
1. Prokaryotic (about 3.5 to 3.8 billion years ago)
2. Photosynthetic (about 3.4 billion years ago)
3. Eukaryotic (about 2.7 billion years ago)
4. Aerobic (about 2.5 billion years ago)
5. Anaerobic (about 2.4 billion years ago)
6. Multicellular (about 600 million years ago)
Disclaimer: My answer may be incorrect because I am not completely sure but I think this is right.
If you are fine with it, I would appreciate if I got the brainliest answer :)
According to the question the sequence of the cell type is as follows:
Prokaryotic (Approx 3.5 to 3.8 billion years ago) Photosynthetic (Approx 3.4 billion years ago) Eukaryotic (Approx 2.7 billion years ago) Aerobic (Approx 2.5 billion years ago) Anaerobic (Approx 2.4 billion years ago) Multicellular (Approx 600 million years ago)How did life begin and evolve on Earth?Many scientists consider that RNA, or similar to RNA, was the first molecule on Earth to self-replicate and initiate the process of evolution that led to more advanced forms of life, including human beings.
Thus, the correct sequence is that.
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Related Questions
A CBC specimen was rejected for testing by the hematology department. The tube was filled completely and labeled properly. What might have been the reason for rejection?
Answers
Answer:
Explanation:
The only thing I can think of is that if you are testing blood for a CBC, you are sometimes required to reject the 1st sample. Perhaps the technician forgot to take a sample that is just meant to be pitched or it was improperly labeled. I get my blood checked every other week, and the people who take it out are scrupulously careful in making sure that the first tube is labelled as waste. No one has every made the mistake of not doing it, but I can see it happening.
The question says it was properly labeled. I didn't see that. The only other thing I can think of is that the machine improperly recorded what the blood cells were and the numbers were all out of kilter.
Which of the following is not a step in the mass production of an organic substrate in a fermentor?
Select one:
a. Inoculate the sterile media in the growth vessel with the microbe of interest.
b. Adjust the environmental conditions for optimal growth of the organism.
c. Add enzymes to catalyze all required steps in the process.
d. Harvest cells and purify the product.
e. Remove waste products and dispose responsibly.
Answers
Which of the following is not a step in the mass production of an organic substrate in a fermentor?
I think E. To remove waste products and dispose responsibly.
------lol--------
Which of the following is a homeostatic response when the human body is fighting an infection?
Select one:
Negative feedback producing more antibodies in the blood.
Positive feedback releasing more enzymes into the blood.
Negative feedback increasing body temperature.
Positive feedback increasing heart rate.
Answers
Explanation:
The immune response contributes to homeostasis by helping to fight off infection and heal after infection or trauma. During an infection, molecules called pyrogens are released, which alert the brain to increase the temperature of the body, causing a fever
The homeostatic response when the human body is fighting an infection is negative feedback, increasing body temperature; that is the third option, as increasing body temperature helps to inhibit the growth and replication of pathogens and also enhances the immune response.
What is homeostasis in a fever?When the body is fighting an infection, it triggers a complex set of responses to try to restore homeostasis and overcome the infection. One of these responses is the activation of the immune system, which produces various cells and molecules to fight off the invading pathogens.
One of the most important homeostatic responses during an infection is the increase in body temperature, which is known as fever. The body's thermostat, which is located in the hypothalamus of the brain, is set to a normal temperature of around 37°C (98 °F). However, during an infection, the body may raise its temperature to 38°C (100.4°F) or higher.
Hence, the homeostatic response when the human body is fighting an infection is negative feedback, increasing body temperature; that is the third option.
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In Darwin's thinking, the more the more closely related two different offspring organisms are related, the
more similar their habitats are.
more similar they are in size.
less similar their DNA sequences are.
more recently they shared a common ancestor.
less likely they are to have the same genes in common.
Answers
Answer:
The more recently they shared a common ancestor
Any physical or behavioral characteristic that an organism has developed
over time is
A) Adaptation
B) Evolution
C) Natural Selection
D) Species
Answers
Answer:
A) Adaptation
Explanation:
Woodpeckers and squirrels fight for nesting rights in the same holes and spaces in trees, while the lions and cheetahs of the African savanna fight for the same antelope and gazelle prey. Which of the following statements about these relationships is accurate?
A.
These are examples of predation because lions and cheetahs eat woodpeckers and squirrels.
B.
These are examples of competition because these organisms are fighting for resources.
C.
These are examples of predation because the organisms are trying to take each other’s food and homes.
D.
These are examples of competition because no organisms are helped or harmed.
Answers
Answer:
b
Explanation:
they are fighting for the same things so it would be competition
Answer Choices;
O A. O short, 4 long
O B. 4 short, O long
C. 3 short, 1 long
D. 2 short, 2 long
Answers
Explanation:
O A. O short, 4 long
Because this type
su cuerpo esta constituido por células a) aubacterias b) eucariotas c) ptocariotas d) Arqueobacteria
Answers
Answer:
your body is made up of cells a) aubacteria b) eukaryotes c) ptokaryotes d) Archeobacteria
Explanation:
because the biggest cell in your body is the brain so it needs all the brain cells in your mind to make the brain makes sense
Please select the word from the list that best fits the definition
help relieve the symptoms of a viral infection
genetic material
active
inactive
vaccines
over-the-counter medications
ability to multiply
Answers
Answer: vaccines
Explanation:
Vaccines refer to biological preparation
which helps in the provision of immunity to a certain infectious disease.
Vaccines help relieve the symptoms of a viral infection. Vaccines help in the stimulation of the immune system of a person and this helps in producing immunity to a particular disease, and hence protects the individual from the disease. It should be noted that vaccines are typically given through needle injections.
Which of the following is not a reason carbon is so vital to life .
Answers
Answer: Carbon only bonds with other carbons
Explanation: It cannot be the answer because carbon forms bonds with other elements as well.
Gimli has been working hard in a desert environment, but has neglected to drink any water to replace the 2L of fluid lost via sweat and respiratory losses (think 600 ml lost from the blood volume). He had to stop working because he felt weak, but still feels poorly after a few minutes of rest.
Gimli, is the cardiac contractility:________
a. increased
b. decreased
c. not significantly changed
Answers
Explained the effects of the use of antibodies in the control of a disease
Answers
Answer:
An antibody, also known as an immunoglobulin, is a large Y-shaped protein produced by B- cells and used by the immune system to identify and neutralize foreign objects such as bacteria and viruses.
Each tip of the “Y” of an antibody contains a paratope (a structure analogous to a lock) that is specific for one particular epitope (similarly analogous to a key) on an antigen, allowing these two structures to bind together with precision.
Though the general structure of antibodies is very similar, a small region at the tip of the protein is extremely variable, allowing millions of antibodies with different antigen binding sites to exist. This region is known as the hypervariable region.
Five isotypes of antibodies are found in different locations and perform different specific functions.
The base of the Y plays a role in modulating immune cell activity. This region is called the Fc region, and phagocytes may bind to it to initiate phagocytosis.
Antibodies that bind to surface antigens on a bacterium attract the first component of the complement cascade with their Fc region and initiate activation of the classical complement system.
Formula
Photosynthesis
Answers
Answer:
6CO2 + 6H2O → C6H12O6 + 6O2.
carbon dioxide + water —> glucose + oxygen + water
Explanation:
Soil generation and soil conservation are equally effective agricultural strategies.
Please select the best answer from the choices provided
OT
OF
Answers
Answer:
Your Answer is True. True
I’m having trouble with the question can someone help
Answers
Answer:
ans: B
Explanation:
a grp of cell is tissue
a grp of tissue is organ
a grp of organs are organ system
a grp of oragan system is organism
What are the three parts to a feedback loop?
Select one:
Positive, negative, and neutral pathways.
Receptors, producers, and transmitters.
Stimulus, sensor, and response.
Input, output, and direction of signal.
Answers
Explanation:
A negative feedback system has three basic components: a sensor, control center and an effector
What are the components of DNA nucleotides?
Answers
Answer:
In turn, each nucleotide is itself made up of three primary components: a nitrogen-containing region known as a nitrogenous base, a carbon-based sugar molecule called deoxyribose, and a phosphorus-containing region known as a phosphate group attached to the sugar molecule
Explanation:
pls mark me brainless.pls
Drag each tile to the correct location.
Match each characteristic to the type of protist it describes.
Answers
Answer:
shows absuce of cell wall though chloroplasts may be present -plant like
slime mold belongs to this cateroy-fungus like
feeds on decaying matter-fungus like
presence of flagella-fungus like
Explanation:
Why is it important that professional organizations advocate for their members?
a. This ensures that there are good peer network groups.
b. This ensures the best price.
c. This ensures that the member's best interest is protected.
d. This ensures that the best officials are elected.
Answers
Answer:
C. This ensures that the member's best interest is protected.
Explanation:
EDG2021
Answer:
C) This ensures that the member's best interest is protected.
Explanation:
What is species evenness?
a. The distribution of species throughout a habitat
b. The number of different populations in a community
c. The relative abundance of species in a community
Answers
The relative abundance of species in a community is known as species evenness. Therefore, option C is correct.
What is species evenness?Species evenness refers to the measure of the relative abundance of different species within a community or ecosystem. It describes the balance of the distribution of individuals among the different species present in a particular area.
For example, a community with high species evenness would have similar numbers of individuals in each species, while a community with low species evenness would have a few dominant species with many individuals and many less abundant species with fewer individuals.
Species evenness is often used in conjunction with species richness, which refers to the total number of different species present in a community, to provide a more complete picture of the biodiversity of an area. Thus, option C is correct.
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A yellow round seed pea crossed with a green flat seed. the set up will be
YYRR
yyrr
The yellow tall are dominant
crossing hom. o zygous vs hom. ozygous
give the first set pick two of the first set and make a second set
Answer the following questions from the second set
1- Hom.zygous for yellow tall
2- Heterozygous for yellow tall
3- Hom.zygous for green flat.
Answers
Answer:
2 i think .... soooooooo confusing
2. What organs does your body use to collect the information described in the last question?
Answers
Answer:
BRAIN??????
Explanation:
WHAT WAS THE LAST QUESTION>
Please select the word from the list that best fits the definition
help relieve the symptoms of a viral infection
genetic material
active
inactive
vaccines
over-the-counter medications
ability to multiply
Answers
Answer:
OTC medication
Explanation:
Although vaccines make sence vaccines help prevent a viral infection
otc medication is used to fight the symptoms
consider the flu shot you might get the flu shot and still get sick so you have to bur flu medicine,
If a person has one dominant and one recessive trait for a gene, the allele combination is …
Question 10 options:
a)
Purebred
b)
Hybrid
c)
Recessive
Answers
B) hybrid
Because the genotype is heterozygous
In sediments and waterlogged soil, dissolved O2 concentrations are so low that the microorganisms living there must rely on other sources of oxygen for respiration. Some bacteria can extract the oxygen in sulfate ions, reducing the sulfur in them to hydrogen sulfide gas and giving the sediments or soil a distinctive rotten-egg odor. What is the oxidation number of sulfur in these compounds
Answers
Answer:
SO₄²⁻ (+6)
H₂S (-2)
Explanation:
To determine the oxidation number of sulfur in a compound, we need to consider that the sum of the oxidation numbers of the elements present is equal to the charge of the compound.
Some bacteria can extract the oxygen in sulfate ions...
SO₄²⁻
1 × ON(S) + 4 × ON(O) = 2-
1 × ON(S) + 4 × -2 = 2-
ON(S): +6
...reducing the sulfur in them to hydrogen sulfide gas...
H₂S
2 × ON(H) + 1 × ON(S) = 0
2 × +1 + 1 × ON(S) = 0
ON(S): -2
Which of the following group uses formylmethionine as the first amino acid in protein synthesis?
-Archaea only
-Bacteria only
-Eukarya only
-None of the above
Answers
When blood passes through a capillary bed in the
it downloards O2 and uploads CO2.
Answers
Answer:
Exchange of gases takes place at alveoli sacs of lungs, which are equipped with capillary vessels or bed.
Explanation:
On inspiration or taking air through nostrils, surrounding air enters the lungs and it reaches air sacs or alveoli. Here, the outside air will have more amount of oxygen when compared with oxygen in blood at that site. Hemoglobin in the blood have high bonding capability to oxygen, so it captures oxygen and takes it to heart for pumping into other parts of the body. Likewise, the circulations continues from lungs to heart > hear to body parts > body parts to heart > heart to lungs for purification.
What effect would a series of major volcanic eruptions have on global climate change?
A) the increase in atmospheric particles with increased range globally
B) The blanket effect of Ash would increase temperatures globally
C) atmospheric ash circulation would cause extreme temperature fluctuations and rainfall
D) Ash clouds would reflect the suns energy and decrease temperatures globally
Answers
The effect that a series of major volcanic eruptions would have on global climate change would be Ash clouds would reflect the sun's energy and lower temperatures globally.
What is volcanic winter?A volcanic winter is the reduction in temperature caused by volcanic ash and sulfuric acid droplets obscuring the sun, usually after a volcanic eruption. Long-term cooling effects are primarily dependent on the ejection of sulfide compounds in aerosol form into the upper atmosphere.
With this information, we can conclude that a major eruption would cause a volcanic winter, with a reduction in temperatures globally.
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Are individuals with a variation of this trait more successful at reproducing than others?
Answers
Answer:
There is no picture shown, however, if the variation benefits the organism and helps them strive then the answer would be yes.
What do you think the purpose of the blender was in your DNA extraction experiment?
Answers
Blender is used in the DNA extraction experiment. Blender is responsible for the separation of cells. This facilitates DNA extraction.
What is DNA extraction?DNA extraction is the procedure of extraction of DNA from the cell in vitro with the help of chemicals. A blender is used in extraction which separates the cells from each other. This facilitates the process of DNA extraction.
DNA is insoluble in alcohol. Addition of alcohol to the cell mixture isolates the DNA from the mixture, this results in the development of white stringy DNA at the top of the mixture. Blender is alcohol, soap, salt solution and detergent.
The basic principle of DNA isolation is disruption of the cell wall, cell membrane, and nuclear membrane as DNA is present in the nucleus. To release the highly intact DNA into solution it is followed by precipitation of DNA and removal of the contaminating biomolecules.
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