What type of cross did Mendel use to determine the probability of offspring when investigating two characteristics at a time
Answer:
When the offspring in Mendel's experiment were self-crossed, the F2 offspring exhibited the dominant trait or the recessive trait in a 3:1 ratio, confirming that the recessive trait had been transmitted faithfully from the original P0 parent. Reciprocal crosses generated identical F1 and F2 offspring ratios.
Answer:
on ck12 - Dihybrid cross
Explanation:
i got it right
Which statement explains something that the fossil record indicates?
Earth is 4.5 billion years old.
Mammals have always existed on Earth.
Mass extinctions have occurred several times on Earth.
The amount of water on Earth has decreased over time.
Answer:
Mass extincions have occured several times on Earth.
Explanation:
Answer:
C. Mass extincions have occured several times on Earth.
Explanation:
took the test :)
The convection cycles of the mantle are the main cause of the movement of what part of the earth?
A) atmosphere B) Core C) crust D) Oceans
What is the connection between hypotheses and tests in an
investigation?
Answer:
your hypotheses is what you predict the results of the test are gonna be based on evidence
Explanation:
Question 17 Multiple Choice Worth 5 points)
(0101 MC)
For many generations, a forest has been the home of a single species of bird, these birds primarily eat insects off the forest floor One year, humans living in the area accidentally introduce a new
species of bird to the forest. This new species has the same diet as the existing species. Which description predicts what will most likely result from these two species of bird living in the same
ecosystem?
Both bird species cannot occupy the same niche and therefore, one species will die of
D
O Both bird species would share the forest and have plenty of food and resources
One bird species will adapt and feed on different organisms in the forest
The established species will battle the introduced species of bird until death
Hi there please help me
Answer:
D
Explanation:
The advantage of using an inclined plane is to reduce the-
a. Force needed to lift heavy objects
b. Time needed to load many objects
c. Work being done while moving objects
d. Amount of friction affecting the objects
Answer:
a
Explanation:
it allows you to go up but not to hard
Find the difference between testosterone and the steroid molecule.
Brainliest!
Answer:
It's true that anabolic steroids used by some bodybuilders and athletes contain testosterone or chemicals that act like testosterone. The difference is that doses used in testosterone replacement only achieve physiologic (natural) levels of hormone in the blood.
Explanation:
does this help :)
Which part of cell division is different in plant and animal cells?
cytokinesis
anaphase
mitosis
eukaryotic
Cytokinesis is the process in which the cytoplasm of a single eukaryotic cell is divided to form two daughter cells. It begins during anaphase and is completed at the end of telophase. Animal cells divide by a cleavage furrow. Plant cells divide by a cell plate that eventually becomes the cell wall.
Answer:
A (cytokinesis)
Explanation:
EDGE 2020
ZoneZ_Faze XBL on YT
If oxygen was removed from the equation, what chemical would build up?
Answer:
co2
Explanation:
Hope this helps, have a nice day!
PLEASE HELP! 50 POINTS
fill in the blanks..
Answer:
All organic compounds contain CARBON AND HYDROGEN. carbon atoms have FOUR valance electrons so it can bond with TWO other atoms.
(I am also not sure that it 100% two but that is what I think.)
Answer:
Carbon and Hydrogen
Explanation:
carbon atoms has four valence electrons meaning that it can bond with two others
Help plz asap due in 2 hours
Answer:
i think i sent the file below
Explanation:
Which of the following statements can be attributed to water's versatility as a
SOLVENT?
Answer:
1no. is the answer I think
Write a paragraph, using at least 4-6 sentences, that explains how and why the classification system has changed over time.
Answer:
they change over time based on newly gathered information, such as molecular information about a species. Organisms are now classified in a more specific manner which has ended up introducing so many new species of organisms.
Explanation:
If all the leaves were shriveled on a plant, what process would not be able to happen
Answer:
fajamarutation process
Explanation:
HELP ME PLEASE!!!!!!
climate region of Russia. Coniferous forests are located in the
A.) tundra
B.) subarctic
C.) semiarid
D.) humid continental
Answer:
subartic/b
Explanation:
I took the test! If Im right please mark brainliest!
Answer:
Yes the answer is b.
Explanation:
I took the unit test to
The __ releases enzymes that digest proteins
Liver
Gallbladder
Liver
Answer:
its the pancreas
Explanation:
What part of the theory of evolution might a comparison of the embryos shown above
support?
Answer:
The theory of evolution is supported by instances of direct observation, the existence of ... DNA sequence comparisons can show how different species are related. ... only during embryonic development) can indicate a shared evolutionary ancestry. ... strategies for reconstructing evolutionary histories over long time periods
Explanation:
PLEASE PLEASE PLEASE HELP HURRYYYY
dear friend, make it into sentence I will share my opinions to it in point wise:
1) Rate of photosynthesis will be high
2) water loss is very high
3) blocks the sunlight
4)competes for water.. broad would more
Help :(
Compare and contrast bodily reactions driven by two parts of the ANS: the sympathetic nervous system and the parasympathetic nervous system. Provide examples where each system would be highly active.
Difference
The sympathetic nervous system prepares the body for the “fight or flight” response during any potential danger. On the other hand, the parasympathetic nervous system inhibits the body from overworking and restores the body to a calm and composed state.
Examples of parasympathetic responses
An easy acronym to remember how and where the PSNS works is SLUDD. This stands for:
Salivation: As part of its rest-and-digest function, the PSNS stimulates production of saliva, which contains enzymes to help your food digest.
Lacrimation: Lacrimation is a fancy word for making tears. Tears keep your eyes lubricated, preserving their delicate tissues.
Urination: The PSNS contracts the bladder, which squeezes it so urine can come out.
Digestion: The PSNS stimulates the release of saliva to promote digestion. It also enacts peristalsis, or the movement of the stomach and intestines, to digest food as well as release bile for the body to digest fats.
Defecation: The PSNS constricts the sphincters in the intestine and moves digested food material down the digestive tract so a person can have a bowel movement.
Examples of the Sympathetic Nervous System Response
The classic case of SNS response is a physical danger, especially with a potential predator, and the preparation of the body for either fight-or-flight. The overall system is designed to enhance voluntary muscle activity while shutting down all non-essential functions.
Arterioles and veins in most vascular beds constrict, reducing blood flow to the skin and digestive organs. Sphincters in the digestive organs also constrict, to control the flow of food from one organ to the next. However, coronary blood vessels, pulmonary circulation and parts of the respiratory tree respond with dilation, to enhance cardiac output. The heart beats with greater contractile force and at a higher frequency as well. Vasoconstriction in many parts of the body also increases blood pressure.
Similarity
Both are the part of ANS. Both originate from the spinal cord. Both have huge influence on physiological process of the body such as respiration, circulation, digestion, urination and reproduction.
The SYMPATHETIC nervous system drives fight-or-flight responses, whereas the PARASYMPATHETIC nervous system drives “rest and digest” responses.
The autonomic nervous system (ANS) comprises the sympathetic system and parasympathetic system.
The sympathetic nervous stimulates 'fight or flight' responses, whereas the parasympathetic system activates 'rest and digest' responses.
The sympathetic nervous system is involved in body reactions such as the acceleration of the heart, constriction of the blood vessels, etc.
The sympathetic nervous system is involved in body reactions such as lowering the heart rate, lowering the flow of blood to skeletal muscles, etc.
Some examples that activate the parasympathetic system include:
Get a massageMeditationSlow breathingSome examples that activate the sympathetic system include:
StressOverstimulationIn conclusion, the SYMPATHETIC nervous system drives fight-or-flight responses, whereas the PARASYMPATHETIC nervous system drives “rest and digest” responses.
Learn more in:
https://brainly.com/question/1034520?referrer=searchResults
Matter commonly exists in either a solid, liquid, or gas stage at a given temperature
A.true
B.false
Answer:
The answer is true because nothing else is not a solid liquid or gas
Can an organism function with a faulty organ system?
Answer:
All of the organ systems of the body work together to maintain homeostasis of the organism. If homeostasis fails, death or disease may result.
Explanation:
Homeostasis is the ability to maintain a relatively stable internal state that persists despite changes in the world outside. All living organisms, from plants to puppies to people, must regulate their internal environment to process energy and ultimately survive
Which phrase best describes translation?
A. converts mRNA into a polypeptide
B. catalyzes bonds between amino acids
c.produces RNA from DNA molecules
D. recycles tRNA molecules for reuse
Answer:
converts mRNA into a polypeptide
The phrase that best describes the process of translation is that it converts mRNA into a polypeptide. The correct option is A.
What is protein translation process?Translation is the process of converting an mRNA script into a protein. Ribosomes and tRNA are used in this process.
A ribosome decodes messenger RNA (which is produced by transcription from DNA) to produce a specific amino acid chain, or polypeptide, during translation.
The process by which a cell produces proteins using genetic information carried in messenger RNA (mRNA).
mRNA is created by replicating DNA, and the information it contains instructs the cell on how to link amino acids together to form proteins.
Decoding a messenger RNA (mRNA) into amino acids is the process of translation. Polypeptides are made up of amino acids that have been linked together.
The translation process is divided into three stages: initiation, elongation, and completion.
Thus, the correct option is A.
For more details regarding protein translation, visit:
https://brainly.com/question/16305501
#SPJ5
Which process connects glycolysis and the citric acid cycle?
A)lactic acid formation
B)acetyl COA formation
C)electron transport
D)Krebs cycle
Answer:
b
Explanation:
because my maam said this same question in grade 7
Why are excess nutrients a problem?
Answer:
Excess nutrients are a problem because they cause nutrient pollution in bodies of water. This pollution can feed dangerous algae and can kill things that make oxygen.
Can someone please give me An example of an ionic bond with a positive ion and negative ion
Answer:
NaCl
Explanation:
ionic bond is the bond results from the electro static force of attraction between oppositely charged ions in other words its the linkage formed by the transfer of one or more electron from one atom to another atom
Na gives it electron to chlroine so Na becomes positively charged and Cl becomes negatively charged and they attract each other to form ionic bond
Na is positive Cl is negative
which of the following is not a characteristic of a eukaryotic cell
What two descriptions fits a major character in a story
Answer:
A character who doesn’t change during the story.
A character with a very simple or two-dimensional personality.
Explanation:
Hope this helped :)
James then dumps the marbles on a steel cookie sheet and tilts it.
Which type of marble will roll off more easily
A widespread dispersal pattern of elongated bloodstains is found on a wall with a void at the point of origin. the bloodstains are less than 1-4 mm in diameter. which weapon most likely caused the blood-spatter pattern?
A. handgun
B. baseball bat
C. knife
D. shotgun
Answer:
it was a shotgun
Explanation:
i took the test