Answer:
1. Concentration of O2 in the alveoli must be more than that of the blood
2. Concentration of CO2 in the blood must be more than that of the alveoli
3. Movement does not stop (find the explanation below).
Explanation:
Gaseous exchange i.e. taking in of O2 and taking out of CO2, takes place in the alveoli/air sac of the lungs. However, the movement in and out of O2 and CO2 from the alveoli into the bloodstream and vice versa follows the principles of SIMPLE DIFFUSION. Diffusion is the process whereby substances move from a region of high concentration to a region of low concentration until they are evenly distributed. Based on this, the following will occur:
1. The concentration of O2 in the alveoli must be more than that in the blood in order for oxygen to enter the blood via diffusion.
2. The concentration of CO2 in the blood must be more than that in the alveoli in order for carbon dioxide to leave the blood and enter the alveoli via diffusion.
3. When the rate of diffusion is at equilibrium i.e. no net movement is occuring die to equal concentration of the substance on both sides, the substances begin to move in the opposite direction at an equal rate. Note that, at equilibrium, MOVEMENT DOES NOT STOP, however, there is an equal rate of movement.
Which correctly lists three factors that contribute to weathering of rock?
O ice, water wind
O layers, minerals, water
Ominerals, water, ice
O water, minerals, wind
1) List what elements are found in a nucleotide.
2) What is the polymer of a nucleotide?
3) Why are nucleic acids important for all life?
COMPLETE SENTENCES PLZ ILL GIVE BRAINLIEST
Answer:
1) A nucleotide consists of a single sugar, a phosphate, and a nitrogen-containing base.
2) The monomer units of DNA are nucleotides, and the polymer is known as a "polynucleotide. Nucleotides don't have polymers because they are monomers.
3) They carry the genetic blueprint of a cell and carry instructions for the functioning of the cell. The two main types of nucleic acids are DNA and RNA.
Explanation:
hope this helps!
In eukaryotic cells, ribosomes are located in the
a
nucleus
b
cytoplasm
Answer:
Cytoplasm
Explanation:
Nucleus was my original answer but I'm actually wrong. It is not the nucleus.
Answer:
B) cytoplasm
Explanation:
I am not 100% sure but i think it´s B
From the provided choices, which color of light does the pigment chlorophyll absorb the most?
A) green
B) Orange
C) blue
D) yellow
Part One: Matching
Instructions. Match the term with the correct response. Write the letter of the term by the definition.
a. Anther
b. Complete flower
c. Filament
d. Incomplete flower
e. Imperfect flower
f. Perfect flower
Petal
h. Sepal
Style
_1. Colorful leaf-like structure which attracts pollinators.
2. Structure which holds up the anthe.
3. Structure which holds up the stigma.
4. Green leaf-like structures that protect the flower bud.
5. Flower which is missing sepals.
6. Flower which has both stamens and pistils.
7. Flower which has stamens, pistils, sepals, and stamens.
8. Flower which is staminate or pistillate.
9. Structure which holds the pollen.
Answer:
G 1. Colorful leaf-like structure which attracts pollinators.
C 2. Structure which holds up the anther.
I 3. Structure which holds up the stigma.
H 4. Green leaf-like structures that protect the flower bud.
D 5. Flower which is missing sepals.
F 6. Flower which has both stamens and pistils.
B 7. Flower which has stamens, pistils, sepals, and stamens.
E 8. Flower which is staminate or pistillate.
A 9. Structure which holds the pollen
Explanation:
The above are parts of a flower. The style actually holds up the stigma. It is the passage that leads down to the ovary which actually contains the ovules. Sepals are known to be green, leaf like structures which located at the base of a flower. It function is to protect the flower bud. An incomplete flower is known to be a flower that has "petals, sepals, stamens or pistils" missing. Perfect flowers are flowers that have the pistils and the stamen just in one flower.
mushroom cannot be kept in the division algae?why
Different between looping and somersaulting method
Answer:
what is the difference between somersaulting and looping movement.
somersaulting- for longer distances.It bends the narrow end in the direction it wants to go & takes grip with tentacles. It releases the broad end and straightens up.
Gene therapy is a form of _____
Selective breeding
Artificial selection
Cloning
Genetic engineering
Answer:
Genetic engineering
Explanation:
Genetic engineering involves a process of using recombinant DNA technology to change the genetic make up of an organism.
This is done in order to address certain issues or to boost food production
Gene therapy is a form of genetic engineering. In this process, bad genes that causes certain diseases are replaced with healthier ones. Selective breeding, artificial selection and cloning are other forms of genetic engineering.Answer:
genetic engineering
Explanation:
I took the quiz
A flashlight uses four batteries to power it. Which type of current flows inside the flashlight? A. direct B. alternating C. repeating D. pulsating
Answer:
A, direct
Explanation:
Hope this helps :)
What could happen to the foxes if the grasshoppers disappear? WHY?
simplify the following
(-107)-(-97)+(-10)
Answer: -20
Explanation:
Here is the equation to solve:
(-107)-(-97)+(-10)
First and foremost, we should note that:
- × - = +
- × + = -
Therefore, (-107)-(-97)+(-10)
= -107 + 97 - 10
= 97 - 107 - 10
= 97 - 117
= -20
why should we always cough and sneeze into a handkerchief
Answer:
Too reduce the spread of the germs, it may not help all the way but just by some
Explanation:
why do biologists measure the number of trophic levels in an ecosystem?
A. to check its stability and health
B. To see if has any food chains
C. To find new treatments for diseases
D. To Make it helpful for humans
Earwax can build up in which part of the ear and block the pathway of sound?
Answer:
The pinna
Explanation
The pinna's main job is to gather sounds and funnel them to the eardrum
Answer:
the answer is ear canal
Explanation:
if anyone can help me, please do. I’m confused.
A worker uses an inclined plane to do the work of moving a wheelbarrow load up to a higher level rather than lifting the
wheelbarow load straight up. Which of the following choices best describes his decision to use an inclined plane? (DOK 3,
AKS 8d)
A. He uses the same effort force, but moves the wheelbarrow the same distance.
O
B. He uses less effort force, but has to move the wheelbarrow a greater distance.
O
C. He uses less effort force, and is able to move the wheelbarrow the same distance.
OD. He uses more force, but moves the wheelbarrow overa shorter distance.
Answer:B
Explanation:Because its right
Antidiuretic hormone (ADH) increases the permeability of the collecting ducts to water, facilitates water reabsorption. As a result, urine volume _____ and blood volume _____.
urine volume decreases since water is returned to the body and the blood volume increases since the reabsorbed primary urine goes into the blood
Put the drinking water treatment steps in the correct order.
B and b represent, respectively, the dominant and recessive alleles of a gene pair. Half of the F1 generation expresses the recessive condition, and the other half expresses the dominant condition. What are the most likely genotypes of the P generation
Answer:
Bb and bb
Explanation:
The most likely genotypes of the parental generation would be Bb and bb.
If Bb and bb are crossed, such that:
Bb x bb
offspring: Bb Bb bb bb
Bb = 2/4 = 1/2 = 50%
bb = 2/4 = 1/2 = 50%
hence;
1/2 or 50%% of the offspring would express the dominant condition in the form of Bb and the remaining 1/2 or 50% of the offspring will express the recessive condition in the form of bb.
Answer:
the dude above me correct
All the rocks shown below were formed as high amounts of pressure caused other types of rock to change form. Which type of rock is shown in the image?
Answer:
metamorphic:)
Explanation:
hope this helps let me know if it’s wrong
fewrfragaggrw gfrgawgargg
A new microbe has been discovered in the rumen of sheep. Microscopy shows no evidence of a nuclear membrane and biochemical studies of the cell wall demonstrate the lack of peptidoglycan. Metabolic studies show that this microbe generates methane. This microbe would most likely be classified in ______.
Since it has no nucleus it's most likely a prokaryote
A new microbe discovered in the rumen of sheep that generates methane, shows no evidence of a nuclear membrane, and biochemical studies demonstrate the lack of peptidoglycan. Such type of microbes is likely to be classified in Archaea.
Archaea is a group of single-celled microorganisms that were first discovered in 1977. Archaea are similar to bacteria and eukaryotes, but they are unique in that they thrive in harsh environmental conditions like extreme heat, high salt levels, and acid environments.
Some archaea can also generate methane gas, similar to the microbe in the given description. Hence, the given microbe that generates methane, shows no evidence of a nuclear membrane, and biochemical studies demonstrate the lack of peptidoglycan would most likely be classified in Archaea.
Learn more about Archaea:
https://brainly.com/question/1475001
#SPJ2
Name three different massive stars
Answer:
R136c: 230 solar masses.
BAT99-98: 226 solar masses.
R136a2: 195 solar masses.
Answer:
The sun, T-Tauri, Lambda Bootis,
Explanation:
example of natural selection
PLEASE HELP !!!!!!!
20 POINTS
Answer:
Explanation:
Skeletal Adaptations. Giraffes, lizards, and many other known species adapted to their environments through genetic changes to their skeletons. Coloration. Many species have been studied who've adapted to their environment through adaptions in coloring. Natural selection is the process in nature by which organisms better adapted to their environment tend to survive and reproduce more than those less adapted to their environment. For example, treefrogs are sometimes eaten by snakes and birds. However, natural selection does not always go to the optimum. An example of variation is that I have a cat with black fur and one with yellow fur. Trait that can be PASSED DOWN to offspring through genes. Inherited characteristic that INCREASES an organism's chance of survival or reproduction in its environment.
factors that increase the role of diffusion
Answer:
- temperature
- concentration gradient
- membrane permeability
Explanation:
the higher the temperature, the more kinetic energy the particles will have so they will move more quickly. the greater the concentration, the quicker rate of diffusion. when the permeability of the membrane increases the higher the diffusion rate.
hope this helps :)
1.The concentration of the two solutions. The bigger the difference of concentration between the two solutions, the bigger the rate of diffusion
2.The size of the molecules. The smaller the molecules the easier they diffuse
3.Temperature. If temperature increases molecules move faster.
If a certain organism is a primary consumer, what best explains its position in the food web? (See picture above)
A. X, because organism X has the same role as the grasshopper
B. y, because organism Y has the same role as grasshopper
C. x, because organism X has the same role as the baby sparrow
D. Y, because organism Y has the same role as the baby sparrow
Answer:
A. X, because organism X has the same role as the grasshopper
Explanation:
In the food web the organism is denoted by X and it shares the same role as the grasshopper.
A primary consumer is mostly a herbivore. They feed directly on plant matter and convert them into useful nutrition for their own needs.
Grasshoppers feed on grasses. They are able to process plant matter into digestible food materials.Organisms of this kind are primary consumers. Organism such as Y are the secondary consumers. They feed on other organism but not directly on the plants.Answer:
A : X, because organism X has the same role as the grasshopper
Explanation:
I did the segmant exam and got it right ur welcome
Explain how photosynthesis and cellular respiration are cyclic processes
Richard Caton used electrodes ______.
A. on the inside of a person's body
B. on the outside of a person's body
Maria walks up hill to go to school every day. When she reaches the top of the hill, she is always breathing much faster than when she started. How might this affect how her heart is working? Support your hypothesis with evidence.
Answer:
''By doing hard activity, the pumps very fast.''
Explanation:
''By doing hard activity, the heart pumps very fast.'' is my hypothesis. In this hypothesis, I mentioned that during hard activity pumping of heart goes very fast because our body needs oxygen as well as energy in the form of ATP and the only way to get both oxygen and energy is the pumping of heart which supply oxygen to the cell as a result energy is generated in the form of ATP and removes carbondioxide gas by breathing.
Which of the following distinguishes a function of vascular tissue?
transporting water through the plant
shaping the plant's sperm
surrounding reproductive parts of the plant
forming the plant's egg
Answer:
The correct answer is - transporting water through the plant.
Explanation:
Vascular tissues are the conductive tissue present in most of the plants that made up of various cell types mainly phloem and xylem. Vascular tissue is complex and present in different types in different plants.
These two primary parts of the vascular tissues xylem and phloem help in transporting the fluids and nutrients to different parts internally in the plants. The fluids that are transported include water, plant hormones nutrients, and various essential molecules to help plant.
Answer:
transporting water through the plant
Explanation:
I got 100% on edge 2022