Answer:
valve
Explanation:
Answer:
Valve!
Explanation:
A “valve” called the lower esophageal sphincter (LES) is located just before the opening to the stomach. This valve opens to let food pass into the stomach from the esophagus and it prevents food from moving back up into the esophagus from the stomach.
A scientist crossed two fruit flies in a lab. She was studying the transmission of the alleles that affect wing shape. The dominant allele, C, is the allele for curly wings, and the recessive allele, c, is the allele for straight wings. She knew that one of the parent flies was heterozygous and had curly wings (Cc). Half of the offspring from the cross had curly wings, and the other half had straight wings. Identify the genotype and phenotype of the second parent fly. State the evidence that supports your response.
Answer:
The other fly would have to be a cc
Explanation:
To do this, you can use the square method, one Cc's on the top and one side a cc, when you cross these it gives you Cc, Cc, and cc, cc. Half and half.
Hope this helped!
The other parent was cc.
Genes often occur in pairs. Genes are units of inheritance located in the chromosomes. The pairs in which genes occur are called alleles. In a given pair of alleles, one gene is dominant and the other is recessive.
In this case, the dominant gene is for curly wings and the recessive gene is for straight wings. If one parent is Cc , the other parent must be cc causing half of the offspring from the cross to have curly wings, and the other half to have straight wings.
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what is an acid? What is a base?
Answer:
An acid is a substance that donates hydrogen ions. Now there are more hydrogen ions than hydroxide ins in the solution. This kind of solution is acidc. A base is a substance that accepts hydrogen ions. When a base is dissolved in water, the balance between hydrogen ions and hydroxide ions moves the other way.
Explanation:
Answer:
An acid–base reaction is a chemical reaction that occurs between an acid and a base. It can be used to determine pH.
Explanation:
An acid is a substance that donates protons or accepts a pair of valence electrons to form a bond.
A base is a substance that can accept protons or donate a pair of valence electrons to form a bond. Bases can be thought of as the chemical opposite of acids.
The atomic number is the ___.
• atomic mass
• number of neutrons
• protons plus the neutrons
• number of protons
Answer:
number of protons is the correct answer
Answer:
number of protons is the correct answer.
Guys help!!!!!!!!!! Pleaseeee it’s urgent
Answer:
The answer is b
Explanation:
PLEASE HELP ASAP
i will mark you brainiest if you get it correct for points!
Where do I put the 4 protons
Answer:
Protons and Neutrons go in the middle
Explanation:
which two structures are not found in both animal and plant cells
PLEASE HELP ME! 70 points
Answer:
1. Nucleic Acid
2. The Nitrogenous Base
Explanation:
Taxonomists try to group organisms based on?
A. Size
B. Evolutionary relationships
C. Physical appearance
D. Ecological niche
Answer:
B) Evolutionary relationships
Explanation:
While I don't believe in Evolutionary relationships, taxonomists group organisms based on Evolutionary relationships
In North America, many top predators, such as wolves, have been driven nearly to extinction. What effect do you think this has on their main prey, deer? Write your answer below, and discuss with your classmates.
Extinction refers to the elimination of species or groups of organisms due to human-made causes or natural events.
In North America, animals or predators such as wolves have been extinct that can affect the food chain and their prey.
The wolves in North America grew in number to such an extent that government and wildlife agencies developed the rules and regulations to hunt down and kill the wolves, which led them to near extinction.
Wolves feed or attack the deer and are a type of parasitism relationship. In this relationship, wolves are benefitted and deer are harmed.
The extinction of wolves will be led to an increase in the deer population, as deers are the prey and will have no fear from the wolves.
Thus, the deer population will increase in number.
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How are DNA and proteins related
Answer: Carry out these functions, DNA sequences must be converted into messages that can be used to produce proteins, which are the complex molecules that do most of the work in our bodies. Each DNA sequence that contains instructions to make a protein is known as a gene
Answer:
The significance of DNA is very high. The gene's sequence is like a language that instructs cells to manufacture a particular protein. An intermediate language, encoded in the sequence of Ribonucleic Acid (RNA), translates a gene's message into a protein's amino acid sequence. It is the protein that determines the trait.
Explanation: hope that helps
One side of the water molecule has a positive charge, while the other side has a negative charge. What do the charges indicate about the molecule?
Answer:
That its a nuetral
Explanation:
In the given case of water molecule, the charges shows that it is a polar molecule.
What is a polar molecule?It is a molecule in which one terminal of the molecule is slightly positive and the other terminal is slightly negative. In the case of water molecule, the unequal sharing of electrons provides the molecule with a slight negative charge close to its oxygen atom and a slight positive charge close to its hydrogen atoms.
When a neutral molecule, possesses a positive region at one terminal and a negative region at the other, it is considered as a polar molecule. The molecules of water attract each other on the basis of the positive end of one water molecule and the negative end of the other molecule of water.
Thus, the charges shows that it is a polar molecule.
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countable and uncountable noun ten examples
Answer:
Countable: dogs, cats, sheep, trees, roads, signs, men, women, planets, universes
Uncountable: rain, water, dirt, flour, wine, wood, plastic, glass, dust, grass
Explanation:
an xkmKJGWIgdK>kCKbmanvK.UEFIU;lage;kfkahefkj
Metamorphic rocks form when
existing rock types are transformed by
heat, pressure, and chemical
processes while _______ the earth
A. Buried deep within
B.in the seas of
C. On the surface of
PLEASE HELP WITH THIS QUESTION
10
01:57:37
In the study of cancer, researchers have used different types of cells, different environmental conditions, and different
experimental designs. But, all researchers have arrived at the same conclusion. What does this say about the
conclusion?
Answer: In study of cancer, researchers have used different types of cells, different environmental conditions, and different experimental designs. But, all researchers have arrived at the same conclusion that the study is well supported to cancer studies.
Explanation: This is because each cell behaves differently in different environmental conditions and each type of cell has its peculiar behaviour in different conditions.
So by this pattern varied studies can be done.
Answer:
A
Explanation:
How can you decrease your height in under a week?
Plz help!! I need help
Answer:
a} Allosteric regulation is just any form of regulation where the regulatory molecule (an activator or inhibitor) binds to an enzyme someplace other than the active site.The shape of the active site is changed, allowing substrate to bind at a higher affinity.
b) The molecules that bind cellular respiration enzymes act as signals, giving the enzyme information about the cell's energy state. ATP, ADP, and NADH are examples of molecules that regulate cellular respiration enzymes. ATP, for instance, is a "stop" signal: high levels mean that the cell has enough ATP and does not need to make more through cellular respiration.
c) This is a case of feedback inhibition i in which a product feeds back to shut down its pathways.
Mandy made the following table describing the conditions required to form sleet and snow, but left something out. Which word should replace the X in the left column? (2 points)
Sleet Snow
Temperature in the cloud Below freezing Below freezing
Temperature X Above freezing Below freezing
State of water Mix of solid and liquid Solid
Group of answer choices:
A. above cloud
B. below cloud
C. on the ground
D. in the soil
Answer:
I know you're probably done with the quiz but I just wanna say the answer is B bc the other person got it wrong. I don't even understand how it would be in the soil lol.
The word that should replace the X in the left column is option C . on the ground
The following information should be considered:
The temperature should be below the cloud that calculated whether or not it becomes sleet or snow. For snow, it should have to be below freezing. For sleet it can be Above freezing since sleet is normally created in slightly warmer temperatures.Learn more: https://brainly.com/question/10046743?referrer=searchResults
What are the 2 reactants of cellular respiration? Where do you get them?
Hello friend! Hopefully this helps you get an idea, or maybe even help you out!
Oxygen and glucose are both reactants in the process of cellular respiration. The main product of cellular respiration is ATP; waste products include carbon dioxide and water.
The rate of a physical or chemical process
refers to the amount of product formed per
unit time is expressed as
(A) rate=
Sp
Ss
st
(B) rate=
др
ds
(C) rate=
8p
(D) rate
др
St
Answer:
(A) rate=
Sp
Ss
st
Explanation:
The rate of chemical is a measure of the speed of a chemical reaction.
The measurement of the reaction rate is based on the disappearance of a reactant or appearance of a product with increasing reaction time.
Reaction rate is usually expressed in terms of a change in concentration of the chosen reactant or product per unit of time.
During a reaction, the concentration of the reactant decreases exponentially with time while that of a product increases exponentially with time.
Reaction rate = [tex]\frac{change in concentration of a reactant/product}{Time taken}[/tex]
The Earth's biodiversity is determined by the variety of all living organisms on Earth. In recent years, ecologists and other scientists have encouraged the preservation of global biodiversity through the protection and management of natural ecosystems. Preserving the biodiversity of the Earth is important because
Answer:
The Earth and its Biodiversity is a living laboratory
Explanation:
The importance of preserving Earth's Biodiversity remains on the idea that every single living organism that existed here on Earth is an example of how Nature can express itself. This means that we as humans can learn with every mechanism that has been developed through millions of years and apply to our self been.
Answer:
all of these
Explanation:
The preservation of the biodiversity of the Earth is important for many ecological, economic, and cultural reasons.
Biodiversity increases ecosystem stability for a given type of ecosystem because greater species diversity ensures natural sustainability of all life forms within the ecosystem. Ecosystems are also highly interconnected and the removal of even a few species can cause ecosystem disruption.
The organisms of Earth's ecosystems provide services that humans cannot replicate. These ecosystem services include the generation of soil that is typically done by microbial and animal species, the maintenance of air quality that is done by plants, the decomposition of wastes that is done by the Earth's decomposers, and the maintenance of water quality that is done by wetland ecosystems.
How does eating food benefit an animal?
Select all that apply.
The animal gets raw materials from the food.
The animal gets energy from the food.
The animal gets water from the food.
The animal gets heat from the food.
Answer:
2)The animal gets energy from the food.
3)The animal gets water from the food.
Hope it helps. Please mark me as the brainliest.
Explanation:
The animal gets energy from the food and The animal gets water from the food. Thus option B and C are correct.
What are the animal originated food ?The food we get from animal source called as animal based food. These are rich in nutrients, proteins, calcium, etc.
Milk is an important animal food product produced from cows, goats, donkeys, camels.
It is an ideal food highly rich in protein, calcium, vitamins etc.
Eggs produced from hens from poultry can be used major parts of the world.
Meat are used from different source of animals such as ducks, rabbits, goats, sheep, hens, pigs, etc.
It can be up two types such as red meat and white meat.
Red meat have lots of fat and cannot be easily digested, the sources are cows, goats, sheep, pigs, etc.
The white meat has less fat and is easily digested and the sources are chicken, fish.
Thus option B and C are correct.
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Summarize the process of sexual reproduction and explain how variations of inherited traits can increase or decrease an organism’s chance of survival
Answer:
Explanation:
A Human cell has 46 chromosomes. (I’ll use humans to keep things simple). In sexual reproduction both humans have 23 chromosomes, in their sex cells. (Men have 23 in a sperm and women have 23 in an egg cell). These half cells merge to create 1 unique cell, that has characteristics of both male and female. The cells multiply and then a baby is born with a unique set of genes. These cause variations, and remember these variations can carry from generation to generation. As for how variations can increase a chance for survival, variations allow unique gene sets to be made, so that in case of a disease (in this case I’ll use a disease, but it could also include harsh environmental conditions), these unique gene sets may give an individual natural immunity to the disease. How can a variation decrease an organisms chance for survival? Well, s there are many ways that a unique gene set can make it difficult to survive. For example a genetic disease your family has had a history with. These diseases include, but are not limited to, cancer, diabetes, and schizophrenia.
Using the image below identify each structure by matching the diagram label with the name of the organelle.
Cytoplasm
Nuclear Pores
Chromatin
Rough Endoplasmic Reticulum
Cell Membrane
Golgi Body
Nuclear Envelope
Cell Wall
Smooth Endoplasmic Reticulum
Nucleus
Mitochondria
Chloroplast
Vacuole
Microtubule
Nucleolus
Ribosome
1.
Structure 1
2.
Structure 2
3.
Structure 3
4.
Structure 4
5.
Structure 5
6.
Structure 6
7.
Structure 7
8.
Structure 8
9.
Structure 9
10.
Structure 10
11.
Structure 11
12.
Structure 12
13.
Structure 13
14.
Structure 14
15.
Structure 15
16.
Structure 16
Answer:
aa
Explanation:
hope heelpes sal
Cytoplasm contains the cytosol, microfilaments and other support structures in the cytoskeleton; it holds parts of the cell together.
What is cell wall?Cell wall is the rigid outer layer of the cell; this forms a protective wall made mostly of cellulose, a structural carbohydrate. It maintains the shape of the cell by preventing water loss. Vacuole a phospholipid membrane bound organelle plays a structural role in the cell; supports the cell membrane by exerting turgor pressure.
Arranged in a phospholipid bilayer, the cell membrane is semi-permeable; allowing entry into the extracellular fluid or the cytoplasm which are both hydrophilic and contain large concentrations of polar water molecules or other water-soluble compounds.
The hydrophilic heads of the bilayer are attracted to water while their water-repellent hydrophobic tails face towards each other- allowing molecules of water and hydrophilic molecules to move across the membrane along the concentration gradient.
Therefore, Some organelles are bound by membranes like those that make up the external structure of the cell, with varying compositions of phospholipids and proteins.
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2. Salt in soil may affect plant growth.
Formal Hypothesis:
Answer:
if salt is present in the soil, then plants will not grow as tall
Explanation:
hypothesis' are just if ___ then ___ statements. it doesn't matter if it's correct, you just have to be confident. so, as long as you don't use probably, maybe, might, etc, and stick to the if __ then __ format, you should be good to go!
Which example demonstrates growth of an organism as a result of mitosis
A.) A plant withering in the sunlight
B.) A baby growing into a toddler
C.) A seed becoming a plant
Consider this animal cell.
The organelles in an animal cell are labeled. Part G is a bean-shaped structure with folding inside.
Which organelles are labeled G?
Answer:
Its Mitochondria
Explanation:
What process must happen before this process depicted below?
Answer:
hopes it helps
Explanation:
In glycolysis, glucose molecule is converted into pyruvate molecules .
It can't be cellular respiration because it starts always with glucose i.e glycolysis. But here it is the process after glycolysis (starting from pyruvate) and changing into lactic acid. It's an aerobic respiration called as lactic acid fermentation.
Answer:
Glycolysis
Explanation:
What characteristic was most useful in identifying each rock type? Explain. (Use the sentence starters and complete the sentences)
Igneous: The characteristic most useful in identifying igneous rocks was… because..
Metamorphic: The characteristic most useful in identifying metamorphic rocks was… because…
Sedimentary: The characteristic most useful in identifying sedimentary was rocks was… because..
Answer:
Give some examples of rocks that would be formed through the process depicted in the figure above.
Explanation:
Which cloud types would most likely indicate that a thunderstorm is on the way?
Answer:
grey or black it combines too