Answer:
The constants are just variables that are kept constant throughout the experiment. For example, even though the question did not mention this, we can assume that sunlight is a constant, otherwise it wouldn't be a fair experiment.
Some of the constants could be...
- Sunlight
- Water
- Room temperature
- Hours of light
- Soil quality
Let me know if this helps!
How does the renal portal system differ from the hypothalamo–hypophyseal and digestive portal systems.
Answer:
The correct answer is - The renal portal system has an artery between the first and second capillary bed. The others have a vein.
Explanation:
A portal system is a system in which is used blood collected from one set of capillaries bed passes through a large vessel or vessels, to another set of capillaries bed before returning to the systemic circulation as the heart can not use these to transfer from all the parts of bodies.
There are several portal systems such as the renal portal system, the hypothalamo–hypophyseal and digestive portal systems, however, The renal portal system has an artery whereas others have a vein.
is a prokaryotic transcription terminating factor.
A.Rho factor
B.Poly U tail
C.Poly A tail
D.Hairpin loop
your answer is
A - Rho factor
What are Some of the characteristics that vertebrates share( choose all that apply)
1. Highly developed senses and nervous systems
2. Endoskeletons and a backbone
3. External protective structures
4. Joint appendages
Answer:
This answer Is Endoskeletons and a backbone
Answer:
1,2, and 4
Explanation:
why goosebums appears in human body?
Explanation:
When you're cold, or you experience a strong emotion, such as fear, shock, anxiety, sexual arousal or even inspiration, goosebumps can suddenly pop up all over the skin. They occur when the tiny muscle located at the base of each hair follicle contracts.
if this help please give brainlist <333
In sexual reproduction, what is true about the DNA of the offspring?
A. It is the same as the fathers DNA.
B. It is a different from either parents DNA.
C. It is the same as the mothers DNA.
Answer:
[tex]\boxed {\boxed {\sf B. \ It \ is \ different \ from \ either \ parent's \ DNA}}[/tex]
Explanation:
Sexual reproduction is one kind of reproduction. It involves two parents to produce offspring. This kind of reproduction occurs when gametes combine. Gametes are sex cells or the egg and sperm. These cells are created in a process known as meiosis. Meiosis is a type of cell division. Cells undergo two divisions and a process known as crossing over. Genetic material is exchanged between two chromosomes, which helps maintain genetic diversity. The 2 divisions result in 4 haploid cells, meaning they have half of the genetic material. After meiosis, there are 4 genetically unique and haploid cells.
When an egg and sperm combine during fertilization, a zygote forms. This is a fertilized egg. It is very unique because each parent contributes half of the genetic material to create a diploid organism with a full set of unique DNA.
You can look similar to your parents and siblings, but (unless you have an identical twin), there is typically some difference because the DNA of offspring is different from either parent's DNA.
Write any two examples of weightlessness.
Answer:
Earth-orbiting astronauts are weightless for the same reasons that riders of a free-falling amusement park ride or a free-falling elevator are weightless. They are weightless because there is no external contact force pushing or pulling upon their body.
what does a closed circulatory system mean?
a) The blood travels through a systemic circulation, which includes the heart and body, and a pulmonary circuit with included the heart and lungs
b) the blood flows through the heart once during each circulation of the body
c) Blood always stays entirely inside the blood vessels. A separate fluid called tissue fluid bathes the tissues and cells
im guessing
c) Blood always stays entirely inside the blood vessels. A separate fluid called tissue fluid bathes the tissues and cells
all plants carry on photosynthesis true or false
Answer:
true
Explanation:
i think
Investigate the distribution of biotic factors on the school’s playfield
*Make a conclusion from the statement above .
Answer:
The correct answer is - different kind of living organism of the ecosystem of the school’s playfield
Explanation:
A biotic factor of any ecosystem or area are all the living organism including bacteria, microbes, plants, animals and decomposers. The biotic factor interact with one another and abiotic factors of the ecosystem.
In this sentence there is looking for study the different kinds of living organisms of the ecosystem of the school’s playfield.
If your body temperature gets too low, why is it dangerous?
A. Enzymes become denatured.
B. Uncontrollable shivering can be deadly.
C. Reactions become too slow for cells to survive.
D. It is not dangerous.
Answer:
Enzymes become denatured.
In case of very low body temperature, the body reactions will become slow and lead to death. The correct option is C.
What is hypothermia?When your body temperature falls, your heart, nervous system, and other organs are unable to function normally.
If left untreated, hypothermia can result in the complete failure of your heart and respiratory system, as well as death.
Thus, the correct option is C.
For more details regarding hypothermia, visit:
https://brainly.com/question/6552936
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Pleaseeee help I need to finish my test :/
When an organism undergoes mitosis and then divides in half to produce two new and identical organisms , this is called
A: regeneration
B: binary fission
C: budding
D: sporulation
Answer:
B: binary fission
Explanation:
What renal and hormonal factors will cause an increased release of aldosterone from adrenal cortex?
Answer:
Renin; angiotensin I and angiotensin II
Explanation:
Renin is a key hormone involved in the renin-angiotensin-aldosterone system (RAAS), which is responsible for regulating blood pressure in response to changes in blood volume. Renin is secreted primarily by the kidneys to promote the production of the peptide hormone angiotensin in the blood vessels. Subsequently, angiotensin stimulates the release of aldosterone from the adrenal cortex, stimulating sodium retention by the kidneys. Renin acts on its substrate angiotensinogen to yield angiotensin I, which is then converted to angiotensin II by the angiotensin-converting enzyme (ACE). Finally, angiotensin 2 promotes the release of aldosterone by the adrenal cortex, which acts on renal tubules, leading to the reabsorption of sodium and water and the excretion of potassium.
Amanda does fast once a month, How is the glucose homeostasis in her body maintained while she is
fasting?
A.The blood sugar level decreases while fasting, the alpha cells in Amanda's pancreas releases glucagon into
the blood that stimulates the liver to breakdown glycogen and releases glucose in the blood. In this way, the
blood glucose level rises and maintains homeostasis.
B.The blood sugar level increases while fasting, the beta cells in Amanda's pancreas releases insulin into the
blood that stimulates the liver to take up glucose and convert it into glycogen also the body cells absorb more
glucose. In this way, the blood glucose level declines and maintains homeostasis.
C.The blood sugar level neither increases nor decreases while fasting; the beta cells in Amanda's pancreas
releases glucagon into the blood that stimulates the liver to breakdown glycogen and releases glucose in the
blood. In this way, the blood glucose level rises and maintains homeostasis.
D.The blood sugar level neither increases nor decreases while fasting the beta cells in Amanda's pancreas
releases insulin into the blood that stimulates the liver to take up glucose and convert it into glycogen also the
body cells absorb more glucose. In this way, the blood glucose level declines and maintains homeostasis.
Answer:
its C cause I got 100% in the test
describe the structural and functional aspects of grassland ecosystem
search the answer on internet
What type of cells are simple animal and plant cells?
White blood cells
Specialized cells
Unspecialized cells
Red cells
Fruit ripening because of
ethylene being released
causing more fruit to ripen
which releases more,
ethylene, is an example of
what kind of feedback
mechanism?
A. positive feedback
B. negative feedback
C. neutral feedback
D. external feedback
Answer:
It's either positive feedback or neutral feedback (I can decide which one fits more)
Explanation:
With some fruits, it speeds up the ripening process depending on the rise in ethylene
Answer:
positive
Explanation:
just did it on my test
Help please ASAP, easy question
A species slowly loses numbers and goes
through natural selection until no individuals
are left. This describes what type of
extinction?
A evolved extinction
B. background extinction
C. mass extinction
D. endangered extinction
Answer:
evolved extinction
please mark me as brainliest
Which type of disease might MOST LIKELY be cured by stem cell transplantation?
Answer:
A blood stem cell transplant is used to treat patients with: multiple myeloma,lukemia and even anaemia.
I hope this helps
What compound is a hydrocarbon?
Answer:
A hydrocarbon is an organic chemical compound composed exclusively of hydrogen and carbon atoms.
How do you change ADP to ATP?
A. Add a phosphate group
B. Remove a phosphate group
C. Add an amino group
D. Remove an amino group
energy tranformation
using
an
Electric iron
Answer:
electrical current flows through metallic coils within the iron. As it does so, the current experiences resistance from the metallic coils and is converted into a different form, heat. ... In this case, electrical energy is converted into light.
Which of the following permits a single gene to code for more than one polypeptide? Group of answer choices genetic differentiation alternative RNA splicing addition of different types of caps and tails to the final version of the mRNA strands retention of different introns in the final version of the different mRNA strands
Answer:
The correct answer is - alternative RNA splicing.
Explanation:
Alternative splicing, or differential splicing, or alternative RNA splicing, is a controlled process that takes place during gene expression that leads to a single gene to code for multiple polypeptides or proteins.
Alternative splicing produces differential combinations of exons of the same gene that result in gene expression for more than one polypeptide by a single gene.
What is produced in abundance by pioneer species?
a) plants
b) cones
c) seeds
d) wet habitats
Answer:
A (plants)
Explanation:
Pioneer species usually create plant litter and break them down as leaf mold after a while which would make new soil for secondary succession and nutrients for small fish an aquatic plants < most of that came from Gogle because if it came from my head it would've been hard to understand lol
Briefly explain what happens during Meosis 2.
Answer:
So the cells that enter Meosis 2 are the ones that are made in Meosis 1. These cells are haploid meaning they have just one chromosome from each homologue pair. Also In meiosis II, the sister chromatids separate, making haploid cells with non-duplicated chromosomes.
Explanation:
Answer^Above
(BTW if the answer is good can u pls mark me Brainliest? Thanks!)
Question 1 of 10
Which statement is true about nitrogen and oxygen?
A They make up about 99.9% of the human body
B. They both contain no subatomic particles
O
They are both made of protons neutrons and electrons.
o
They are both used to make water molecules.
SUBMIT
what happens during anaphases?
Answer:
During anaphase, each pair of chromosomes is separated into two identical, independent chromosomes. The chromosomes are separated by a structure called the mitotic spindle. … The separated chromosomes are then pulled by the spindle to opposite poles of the cell.
Which of the following particles has a negative charge?
A. Electron
B. Nucleus
C. Proton
D. Neutron
anyone help me please
Answer:
The human body is controlled by a network of living wires called the nervous system.
What is the term for a preserved footprint left behind by an animal?
O A. Embryo
O B. Code
O C. Fossil
O D. Isotope
Answer:
A fossil.
It would be C
what is photosynthesis
and precipitating??
Answer:
Photosynthesis is a process used by plants and other organisms to convert light energy into chemical energy that, through cellular respiration, can later be released to fuel the organism's metabolic activitie
In meteorology, precipitation is any product of the condensation of atmospheric water vapor that falls under gravitational pull from clouds. The main forms of precipitation include drizzling, rain, sleet, snow, ice pellets, graupel and hail.
Explanation:
I hope this answers is helpful to you
