Explain how iron, in the diet of humans, is used in the body.
The human body needs iron to make the oxygen-carrying proteins hemoglobin and myoglobin. Hemoglobin is found in red blood cells. Myoglobin is found in muscles
Describe the process of respiration which takes place in human beings when oxygen
is not available and give an effect
In corn, seeds may be starchy (S) or sweet (s). Cross two heterozygous starchy corn plants. Using a Punnett’s square, give the phenotypic ratio then state the proportion of offspring that would be expected to be sweet?
if we cross Ss with Ss on the punnet square we will get the gametes S and s for both parents
on top left we have SS since we combine the alleles S and S
on top right we have Ss since we combine the alleles S and s
on bottom left we have Ss since we combine the alleles S and s
on bottom right we have ss since we combine the alleles s and s
The phenotypic ratio starchy:sweet is 3:1
1:3 of the offspring will be sweet
Which molecule carries information from DNA to the place where proteins are made?
a
mRNA
b
DNA
c
tRNA
d
rRNA
Answer:
A.) mRNA ( messenger RNA )
Explanation:
i'll give brainliest
Answer: B. S cycle
Explanation: The S phase of a cell cycle occurs during interphase, before mitosis or meiosis, and is responsible for the synthesis or replication of DNA.
HELP ASAP PLEASE!! DUE IN 10 MINUTES !!! based on these results which statement correctly predicts what will happen to red blood cells when they are placed in a beaker containing a water solution in which the salt concentration is much higher than the salt concentration in the red blood cells
A:the red blood cells will absorb water and increase in size
B:the red blood cells will lose water and decrease in size
C:red blood cells will of first absorb water than lose water and maintain their normal size
D:the red blood cells will first lose water then absorb water and finally double in size
Answer:
The correct answer is - option B. the red blood cells will lose water and decrease in size.
Explanation:
The movement of the water takes place always from the high concentration region of solute to the low concentration of solute through a semi-permeable membrane. In this case, the representation is showing that placing the cell inside a solution with low concentration solute than the cell makes the cell increase the size, and placing it in a solution high concentration of solute makes it decrease in size due to the transfer of water from more water to the low water area.
Now placing the RBC in a solution with more salt concentration than the cell makes the solution hypertonic which means the solution has more solute concentration and less water so the water move from cell to the solution and cell will shrink and decrease in size.
please help , i’ll give brianliest
What is the most significant difference between animal and plant cells? Why do you think that?
Answer:
plant cells have chloroplasts
Explanation:
please help asap ill give that brain thing if you give a correct answer tysm
Answer:
increase temperature
Explanation:
PLEASE HELP ASAP I HAVE 10 minutes i’ll give that brain thing if you give a correct answer tysm:):
Answer:
synthetic; oil
Explanation:
the answer is B
your welcome :)
A. Modified True or False:
Write true if the statements is correct. Otherwise, change the underlined word/phrase to correct the statement. Write your answer in the space provide before the number.
______________1. Sexual reproduction involves the union of male and female sex cell.
______________2. Some animals can reproduce without the presences of the gametes or sex cell.
______________3. Mitosis is the process of the production of sex cells. ______________4. Asexual reproduction produces offspring that are genetically
identical with the parents.
______________5. Parthenogenesis does not require the union of sperm cell and egg cell.
If you answer it all correctly you will be rewarded 10 points
Answer:
1.FALSE
2.TRUE
3.FALSE
4.I THINK IT IS A TRUE
5.TRUE
HELP ASAP WILL MARK YOU BRAINLIEST
Answer:
THE DIRECTIONS SAY USE UR MAP
COULD U SEND THE MAP AND I WILL ANSWER THE QUESTION
MARK ME BRAINLIEST
Explanation:
Provide at least three reasons why friction is needed.
Answer:
Although you normally hear about trying to reduce or eliminate friction, it actually has some important uses.
Since friction is a resistance force that slows down or prevents motion, it is necessary in many applications where you might want to hold items or do things and prevent slipping or sliding. In those cases, there is an advantage of having friction.
Quite often uses of frction can be seen from how things would be without friction. Without friction, you would not be able to walk, drive a car, or hold objects. Pens and pencils would not work.
Explanation:
Answer:
Friction allows people and objects to move. It provides traction for an object to start moving or change direction. It can also give people a better grip on objects. Finally, friction keeps objects in place when they are set down.
Explanation:
Sample Response
Can you curl your tongue? Tongue-curling in humans (T) is a dominant genetic Derek can curl his tongue but his wife. Ashley, cannotAll nine of their children can curl their tongues. Complete the Punnett square based on the genotypes they most likely have.
Answer:
yes, i can. I can also make a 'w' with my tongue
Explanation:
7. Cranial nerves and spinal nerves are you peripheral nervous system.
True or false
2. a) Describe the ways that energy is converted between forms during the light reactions. 2. a) Describe the ways that energy is converted between forms during the light reactions.
Answer:
Light energy is converted to chemical energy.
Please find the explanation below
Explanation:
Photosynthesis is a unique process that occurs in the cells of green plants and other autotrophic organisms. It is the process whereby they synthesize their food in form of carbohydrates (sugars). The photosynthetic process takes place in two stages namely: light dependent reaction and light-independent reactions.
The light dependent reaction or simply light reaction is the stage where light energy from the sun is harnessed by a pigment called CHLOROPHYLL and used to produce ATP needed to build glucose molecules in the next stage. Hence, via this process, the LIGHT ENERGY from the sun is converted to CHEMICAL ENERGY in ATP.
under normal conditions, which organisms in this community would have the greatest amount of stored energy?
Answer:
Plants
Explanation:
The greatest amount of stored energy in this food web would be in the plants because they obtain energy directly from the Sun. Plants are the producers/autotrophs in the food cycle and in this community.
please give thanks by hitting that heart button :)
can anyone please tell the answer i have given the image so anyone please answerthis question
plzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzz
Answer:
The first one is Synthesis
The second one is Single displacement
The thrird one is Combustion
The fourth one is Double displacement
Cellular respiration releases energy by breaking down *
A. ATP.
B. water.
C. carbon dioxide.
D. glucose.
The Answer to this is D.
Which processes relate to mechanical weathering check all that apply
Answer:
A. freezing and thawing
B. plant growth
D. abrasion
Examples of mechanical weathering include frost and salt wedging, unloading and exfoliation, water and wind abrasion, impacts and collisions, and biological actions. All of these processes break rocks into smaller pieces without changing the physical composition of the rock.
Explanation:
hope this helps :D
Answer:
1. freezing and thawing.
2.plant growth.
4. abrasion.
Explanation:
hope it helps
Someone help meee :(
Answer: Disruptive selection
Explanation:
Hoped my answer was right and it helped you!!! Best of luck :D
also heres this
Disruptive selection, also called diversifying selection, describes changes in population genetics in which extreme values for a trait are favored over intermediate values. In this case, the variance of the trait increases and the population is divided into two distinct groups.
Stabilizing selection (not to be confused with negative or purifying selection) is a type of natural selection in which the population mean stabilizes on a particular non-extreme trait value. ... This means that most common phenotype in the population is selected for and continues to dominate in future generations.
directional selection: a mode of natural selection in which a single phenotype is favored, causing the allele frequency to continuously shift in one direction. disruptive selection: (or diversifying selection) a mode of natural selection in which extreme values for a trait are favored over intermediate values.
In some ecosystems each trophic level can supply only about 10% of its energy to the next
higher level. How much energy would be supplied to the second-level consumers in this energy
pyramid?
A. 50%
B. 10%
C. 1
D. 0.1%
Answer:
B
Explanation:
When damage occurs to the antidiuretic hormone (ADH)-producing cells in the hypothalamus from head trauma, intracranial tumors, or neurosurgery, what disorder is suggested by a large diuresis of very dilute urine
Answer:
diabeytes insupidus
Explanation:
Another name for antidiuretic hormone (ADH) is arginine vasopressin.
It is made by the hypothalamus in the brain.
It is stored in the posterior pituitary gland.
This hormone helps in regulation of the amount of water in blood.
When damage occurs to the antidiuretic hormone (ADH)-producing cells in the hypothalamus from head trauma, intracranial tumors, or neurosurgery, what disorder is suggested by a large diuresis of very dilute urine diabeytes insupidus.
describe the difference between the cell wall and plasma membrane in terms of movement of substance into and out of cells
Answer:
The cell wall is a fully permeable membrane while as the plasma membrane is a particular membrane
Explanation:
The cell wall will allow all the substances go inside or outside while as the plasma membrane will only allow certain substances to go in or out based on the cell's needs.
What is the result of meiosis II?
Select the correct answer from each drop-down menu.
v solution. A particular
Compared to its surroundings, the concentration of solutes is low inside a cell. So, the cell is in a
solute in this cell uses energy for its transport from the cell to its surroundings. This type of transport is called
Answer:
The correct answers (I think) would be Hypotonic and Active Transport
Explanation:
Answer:
Compared to its surroundings, the concentration of solutes is low inside a cell. So, the cell is in a hypertonic solution. A particular solute in this cell uses energy for its transport from the cell to its surroundings. This type of transport is called active transport.
Explanation:
What is true about cellular respiration?
Answer:
Cellular respiration can occur both aerobically (using oxygen), or anaerobically (without oxygen). During aerobic cellular respiration, glucose reacts with oxygen, forming ATP that can be used by the cell. Carbon dioxide and water are created as byproducts.
Hope this helps, have a wonderful day/night, stay safe, happy holidays, and merry christmas!
Please help!!!!!!!!!!!!!
Answer:
b.
Explanation:
Adaptions for surviving exposure to air.
This is the special adaptions intertidial species have.
A student is collecting the gas released from a plant when exposed to sunlight. The gas being collected is:
A) water
B) Carbón dioxide
C) ATP
D) oxygen
Answer:
D
Explanation:
Plants absorb carbon dioxide and releases oxygen, that is part of the reason trees are important to the earth because one, many animals live in forests, and two, they give oxygen to the earth.
Which type of soil would be most suitable for rice?
Answer:
Slit Clay
Explanation:
Rice needs a lot of water to grow and clay holds water.
