Answer:
Explanation:Lack membrane-bound organelles - While bacteria have a few organelles involves in metabolism and reproduction, they, like viruses, do not have membrane-bound organelles. In viruses, the nucleic acid is not contained in a nucleus as is the case with eukaryotic cells.
Mitochondria are cell structures that contain a small quantity of DNA.
Scientists are sequencing the DNA of one particular gene in mitochondria to
help identify different species of many animals including myriapods. The
sequences that they find are called ‘barcodes’.
(i) State the part of the cell that contains most of the DNA.
[1]
(ii) Suggest how DNA barcoding might be useful in the classification of animals,
such as myriapods.
Classify each planet as an inner planet or an outer planet.
Does the Second Amendment need to be "revisited" in 2021? yes and why?
I need help pleasee
Answer:
It needs to be revisited because of the random acts of violence that it enables.
Explanation:
People that have access to weapons of mass destruction use them to kill people for no reason. For example, the sandy hook shooting, the recent Stoneman Douglas shooting, and the Christchurch shooting. All these shootings could have been prevented if there was stronger gun control. If people did not have access to automatic firing machine guns, less people would have died.
* DISCLAIMER *
All ideas expressed in this answer do not necessarily reflect my person views, they are meant for educational purposes, not to spark a debate about the 2nd amendment, do not get offended. (put this in cus some peeps crazy)
What is the effect of inputting stem cells instead of body cells into the original system?
Explanation:
Stem cell research indicates that s.cells are cells that are not fully developed; in turn if researchers inject a patient with type 1 diabetes into the pancreas the result is that the pancreas produces it's own insulin eliminating the chances of spikes in the blood sugars of the patient & also long term effects of high blood sugars that effect all vital organs & nervous system.
Researchers were also using stem cells to limbs that were amputated or damaged resulting in the limb regenerating itself.
I have seen a mouse that had a human ear attached to its body.
Researchers were ordered by our government to cease the experiments because pharmaceutical companies were making more $$ on medicines to supposedly help diabetics or veterans to live a normal life..
difference between plants and animal cell
Answer:
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.
Explanation:
Hope this helps
sorry if incorrect
Brainliest?
Answer:
Plant cells have chloroplasts,animal cells don't.
Plant cells also have cell walls.
Animal cells have lysosomes and centrosomes and plant cells don't.
adsorption definition
Answer:
The definition of Adsorption is the process by which a solid holds molecules of a gas or liquid or solute as a thin film
Explanation:
Which of the following best describes a mutation?
a change in a gene
a section of a chromosome that codes for a trait
anything that can damage a gene
a distinguishing quality that can be passed from one generation to another
PLZ HELP!!!!!
. Flattened, hollow folds and sacs of endoplasmic reticulum are called cisternae.
a. TRUE
b. FALSE
Answer:
true
hope this helps
have a good day :)
Explanation:
Question 4 (1 point)
Low-mass main sequence stars often exceed the Chandrasekhar Limit
O True
O False
Investigators are looking for the igniter used at their crime scene. Which igniter is most likely to leave evidence behind for investigators to discover?
A cigarette lighter
A cigarette butt
A match
A Molotov cocktail
Which of the following would cause an error in DNA replication?
A. DNA polymerase pairing A with G
B. DNA ligase connecting chunks of DNA
C. Helicase making a replication fork
D. DNA polymerase checking the DNA
Answer:
A. DNA polymerase pairing A with G
Explanation:
Adenine (A) always pairs with thymine (T), and cytosine (C) always pairs with guanine (G).
DNA polymerase pairing A with G would cause an error in DNA replication. The correct option is A.
An error in DNA replication occurs when an incorrect nucleotide is inserted during the replication process.
DNA polymerase is responsible for synthesizing a new DNA strand by adding complementary nucleotides to the existing template strand.
It ensures the accuracy of replication by matching each nucleotide with its complementary partner (A with T and G with C).
If DNA polymerase pairs A with G instead of A with T, it results in a mismatched base pair.
This is considered an error in DNA replication since it introduces a mutation in the newly synthesized DNA strand.
The fidelity of DNA replication relies on the correct base pairing and proofreading mechanisms of DNA polymerase to minimize errors and maintain the integrity of the genetic information.
Thus, the correct option is A.
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One Multiple Choice (A, B, or C) question and one True/False question.
For probability and permutations and combinations
List the three layers of the rainforest
Answer:
Canopy, understory, and forest floor.
Explanation:
Hope that this helped you :D
A typical virus is made up of 2 parts. Check all that apply.
A) Golgi Body
B) Nuclear envelope
C) Nucleic Acid
D) Capsid
Answer:
C) Nucleic Acid
D) Capsid
Explanation:
A virus is structure that is dependent on a living host to replicate itself. Viruses are majorly pathogenic in nature and have a structure that is made up of two parts namely: nucleic acid and capsid.
The nucleic acid, which can either be RNA or DNA holds the genetic information of the virus while the capsid is a protein coat that enclosed and protects the virus' genetic material. The capsid is also used during the infection life cycle of a virus where it helps the virus to attach to receptor cells on the host's cell membrane.
I just don't know what each one is
Stimulus: Ca2+ ion levels in blood are too low
•Sensor: •Control center:
•Effector and action(s):
•Negative feedback:
•Stimulus: Ca2+ ion levels in blood are too high
•Sensor:
•Control center:
•Effector and action(s):
•Negative feedback:
Is this correct guys?
Answer:
Yes its correct.
:)))))
draw a line from each hormone in list A to the correct information in list B
Answer:
The correct answer would be -
FSH - used as fertility drugs to makes egg mature.
LS - stimulates the release of eggs.
Oestrogen - causes the lining of the womb to break down.
Explanation:
FSH is a hormone released from the pituitary gland and is the abbreviation of Follicle-stimulating hormone which controls the menstrual cycle and growth of eggs in ovaries. It is also used as a fertility drug that promotes the growth of eggs to mature it.
LS or Luteinising hormone is the hormone that is released from the pituitary gland and promotes the surge of the release of eggs.
Oestrogen is the hormone that helps females during puberty during the menstrual cycle to breakdown the lining of the womb.
Marine iguanas feed on seaweed. Seaweed contains starch Starch is digested by enzymes in the digestive system. Explain why the shape of an enzyme is important for digestion.
Answer: The enzyme is a catalyst that speed up the rate of the reaction.
Explanation:
The enzyme can be defined as the protein that is involved in the catalytic activity of the reaction. The shape of the enzyme is important as it determines to which substrate it binds to. The enzyme is specific to the substrate and binds to a specific kind of substrate. During the digestion process the enzyme binds to the specific substrate like protein, carbohydrates, fats, and other biomolecules present in the food to simplify the digestion process. Starch is digested into maltose by the enzyme salivary amylase in the mouth.
similarities between fungi and protists . WILL MARK U BRAINLIEST !! ( just need 2 )
Answer:
Since plants and fungi are both derived from protists, they share similar cell structures. Unlike animal cells, both plant and fungal cells are enclosed by a cell wall. As eukaryotes, both fungi and plants have membrane-bound nuclei, which contain DNA condensed with the help of histone proteins.
Explanation:
hope this helps
Please define the terms, don’t copy and paste. I’m giving 15 points for it
30. What is the name of the process by which new cells are made for growth and repair?
Answer:
cell division
Explanation:
This is where cells would get damaged or die and this process calls cell division occurs
Answer:
cell division,the process of mitosis
i would really appreciate it if someone can helpp!!!
Answer: IM NOT SHORE but when you have to BB its 100% black and the parent of that one will pass on B always. the white mouse is bb this is a resistive trait.
Explanation:i hope i help you sorry if it didnt but i tired my best
Is it hazard or risk
Answer:
1. Risk
2. Hazard
3. Risk
4. Risk
5. Hazard
6. Hazard
7. Hazard
8. Hazard
9. Risk
10. Hazard
:)
a student mixed a sample of urine from a person with benedict's solution and heated ,the colour changed to Orange. (b)what did the student conclude on the health status of the person
Answer:
The person has high blood sugar.
Explanation:
Because benedict's solution tests for reducing agents, and since it changed its colour, reducing sugars(like glucose) is present.
Maria claimed that she could not see through the safety goggles and wore them on top of her head rather than over her eyes. While pouring an unknown chemical into a beaker, she accidently splashed some of the chemical in her eyes. What should Maria immediately do next?
Answer:
She should immediately rinse or flush her eyes with water.
Explanation:
One of the most important precautionary measure to be taken when working with explosive chemicals in the laboratory is the use of safety goggles. However, in this case, Maria claimed that she could not see through the safety goggles and wore them on top of her head rather than over her eyes.
Maria accidentally splashed some chemicals into her eyes while trying to pour it into a beaker. The primary or initial response to this happening is to immediately FLUSH OR RINSE her eyes with water. This will flush away the chemical from her eyes before it can have its detrimental effect.
Answer:
proceed to the eye wash station, open her eyes, and rinse them for at least 15 minutes
Explanation:
Which is NOT true of magnetic
domains?
A. Magnetic domains are groups of aligned
atoms.
B. Magnetic domains are too small to be seen.
C. Magnetic domains are outside of a magnet.
The study of magnetic domains is defined as the micro magnetics. The Magnetic domains are outside of a magnet is not true. The correct option is C.
What is a magnetic domain?A magnetic domain is defined as a region within a magnetic material in which the magnetization is in a uniform direction. This indicate that the individual magnetic moments of the atoms are aligned with one another and they point in the same direction.
The magnetic domain structure is responsible for the magnetic behavior of ferromagnetic materials like iron, nickel, etc. The domains are found to be oriented randomly if there is no external magnetic field.
Thus the correct option is C.
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which 3 statements of these are true? ( I put a picture attached to this ) please help I will give brainliest if correct
Answer:
The name of the element is carbon, there are 6 protons, and nitrogen has a smaller atomic number.
Explanation:
The atomic number of carbon is 6, not 12.
The atomic mass of carbon is 12.01g, not 12.
It does have six protons, it has a larger atomic number (6) than nitrogen (5) and it is called carbon.
which one ?
A.
B.
C.
D.
Answer:
D
Explanation:
Answer and Explanation:
D should be the right answer. Let me know if I'm wrong..
Is the following cell a plant of an animal cell? How do you know? Plant cell because there is a cell wall and a chloroplast O Plant cell because there is a large vacuole and a cell wall 0 Animal cell because there is a cell membrane and no chloroplasts O Animal cell because it has a cell wall and a a large vacuole
Answer:
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. In plants, the cell wall surrounds the cell membrane.
Explanation:
The sides of the DNA ladder are made of two molecules that alternate. The alternating molecules are __?__ and __?__.
Answer:
Sugar and phosphate
Explanation:
sugar and p h o s p h a t e