Answer:
The only reactants of the Krebs cycle proper are acetyl CoA and the four-carbon molecule, oxaloacetate.
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.
help please!!! asap!!
Answer:
Water
Explanation:
What question led scientists to separate plants and fungi into two distinct kingdoms?
A. Does the organism have cells?
B. Does the organism reproduce?
C. Does the organism grow on the ground?
D. Does the organism use sunlight to make food?
Answer:
A
Explanation:
yes because each plant have a cell if they don't they might die.
When water is cooled, it becomes more dense and sinks to the bottom of the water column. The displaced water is them replaced with ___________.
more cold water from the North and south pole
warm water moving in from the equator
water that is roughly the same temperature as the displaced water
water from volcanic vents
B) warm water moving in from the equator
List some biotic and abiotic factors you would expect to find in a city park?
please help me i don’t know nun of this
Answer:
A and A
Explanation:
Answer:
idek
Explanation:
Which enzyme breaks down cannabis?
CYP1A5
ALDH
CYP2D6
CYP3A11
CYP2A4
Answer:
I believe it is either CYP2C9 or CYP2D6 that breaks down cannabis.
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.
Would DNA fingerprinting be useful in solving crimes if there was no such thing as nonsense codes/junk DNA?
How do T-cells help with destroying viruses?
Answer:T-cells are a type of white blood cell that work with macrophages. Unlike macrophages that can attack any invading cell or virus, each T-cell can fight only one type of virus. You might think this means macrophages are stronger than T-cells, but they aren’t. Instead, T-cells are like a special forces unit that fights only one kind of virus that might be attacking your body.The T-cell receptor fits with its antigen like a complex key. When the perfectly shaped virus antigen on an infected cell fits into the Killer T-cell receptor, the T-cell releases perforin and cytotoxins. ... Cytotoxins go directly inside the cell through this pore, destroying it and any viruses inside.
Explanation:
Hope this helps :) Can u plz mark me branliest :)
What theories of intelligence relies on the sensitivity to other people’s feelings and the ability to respond to them?
A. Emotional Intelligence by Daniel Goleman and Gardner's Theory of Multiple Intelligences
B. Emotional Intelligence by Daniel Goleman
C. Gardner's Theory of Multiple Intelligences
D. Neither
Answer:
D
Explanation:
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..
Where does cellular respiration occur within the cell?
O A. Extracellular space, cytoplasm,
inside mitochondria.
B. Cytoplasm, mitochondrial
matrix, inner mitochondrial
membrane.
C. Cytoplasm, inner mitochondrial
membrane, mitochondrial
matrix.
Answer:
B. Cytoplasm, mitochondrial
matrix, inner mitochondrial
membrane.
Explanation:
The aerobic respiration is made up of different processes:
a) Glicolysis, which takes plays in the cytosol of the cell
b) Oxidative decarboxylation of pyruvate and Krebs circle which occurs in the mitochondrial matrix
c) Oxidative phosphorylation which occurs in the mitochondrial cristae
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.
Is this correct guys?
Answer:
Yes its correct.
:)))))
How do the diaphragm and rib muscles help with breathing? These muscles
pull lungs down to draw in air
change the air pressure
open up the air flow tubes
keep food out of the chest
push blood around the lungs
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:
9 Luis wants to interview someone who has a career in biotechnology. Which of
the following best describes a career in biotechnology?
F Athena uses a sophisticated telescope to observe stars.
G Zach tracks the number of fish that inhabit a certain coastal area.
H Vincent modifies the DNA of bacteria to study the function of their genes.
I Lindsey writes computer programs that model the three-dimensional
structure of chemical compounds.
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.
What two types of cells are involved in immune response and have the job of creating a "memory" of exposed pathogens? *
a)A cells and B cells
b)T cells and A cells
c)T cells and B cells
d)red and white blood cells
Answer:
B
Explanation:
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:
HELPPP!!!!!!!........
Answer:
i think the answer is...some bacteria avt like devomposer & recycle......
Why is it possible that two ecosystems with identical conditions of temperature and precipitation, could support different plants?
Answer:
Because even if they are similar, they still have a difference between them, and that difference helps other plants.
It is possible because plants require other factors like sunlight and soil nutrients) other than Temperature and precipitation to grow
Plants require some Important factors for its growth and development and they are :
Temperature precipitation Sunlight soil nutrients type of soilThe two ecosystems with identical conditions of Temperature and precipitation might have differences in the amount of sunlight they receive and the Nutrients contained in its soil. therefore the ecosystems although similar can support different plants based on the difference in the amount of sunlight and Nutrients contained in the soil.
Learn more : https://brainly.com/question/22856681
Which element is found in both DNA and protein?
Sulfur
Sodium
Nitrogen
Chlorine
Answer:
nitrogen
Explanation:
Answer:
Nitrogen
Explanation:
Hello There!
DNA and protein is made up of nitrogenous bases which contain nitrogen therefore the correct answer would be nitrogen
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
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:
Touch the stigma and notice how it feels. What is the advantage of this type of texture?
A. The sticky texture allows for capture of prey to help with fertilization
B. The sticky texture allows for the exchange of carbon dioxide to assist with photosynthesis.
C. The sticky texture allows for pollen to adhere to the stigma for fertilization.
D. The sticky texture allows for water molecules to not escape from the plant, thus preventing dehydration.
Which of the following are reasons Earth's atmosphere makes conditions suitable for life? (multiple answers)
stops earthquakes
protects us from harmful radiation
traps heat
provides oxygen for breathing
Answer:
B and C I think
Explanation:
Those ones make the most sense in my opinion.
please answer all the three questions
Answer:
1. Birds have feathers of different colours.
2. Woodpeckers have long beaks.
3. Sunbird is a non-migratory bird.
or
3. Sunbird is sedentary bird.
Explanation:
hope this helps and is right :)
p.s. i really need brainliest.
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)