Answer:
- molecules brought in and used in three turns of the Calvin cycle = carbon dioxide (CO2)
- molecules produced during three turns of the Calvin cycle that leave the cycle = Glyceraldehyde-3-phosphate (G3P)
- molecules used and regenerated within the Calvin cycle during three turns = Ribulose bi phosphate (RUBP)
Explanation:
The second stage of photosynthesis, called CALVIN CYCLE, occurs in the stroma of the chloroplast. The processes that occur in this stage can be divided into three stages namely: carbon fixation, reduction and regeneration.
As rightly stated in this question, the calvin cycle must repeat three times in order for a cell to have enough material to construct half a glucose molecule. Hence;
- In carbon fixation, molecules of carbon dioxide (CO2) are brought in and used in three turns of the Calvin cycle. The CO2 combines with a CO2 acceptor called RUBP (ribulosebiphosphate) to produce PGA (3-phosphoglycerate).
- In the reduction stage, PGA is reduced to Glyceraldehyde-3-phosphate (G3P). This G3P molecule is produced during three turns of the Calvin cycle and leaves the cycle to be used to form glucose.
- In the regeneration stage, remaining molecules of G3P are used to regenerate RUBP in order for the cycle to continue. Hence, RUBP molecules are used and regenerated within the Calvin cycle during three turns.
What is the purpose of the part of the male reproductive system that is
highlighted below?
A. Creates the fluid in semen
B. Transfers sperm cells to the urethra
C. Manufactures sperm cells
0
D. Stores sperm cells until they mature
Answer:
A creates the fluid in semen
Algal bloom is caused what 2 factors in the dead zone?
0 points
A) Fertilizer
B) Nitrogen
C) Nutrient
D) Rapid growth
E) Phosphorus
F) Animal waste
pls help i need this because of a quiz
tbm queria saber essa pergunta!!
Answer:
Dead zones are generally caused by significant nutrient pollution, and are primarily a problem for bays, lakes and coastal waters since they receive excess nutrients from upstream sources. Excess nitrogen and phosphorus cause an overgrowth of algae in a short period of time, also called algae blooms.
hope it helps!
please mark as the brainliest!
Do all cells in an organism reproduce through mitosis. Yes or No
Which of the following scenarios is an example of temporal isolation?
A.
Fossil evidence suggests that a number of members of one squirrel species evolved over time into two separate species, each on opposite sides of the Grand Canyon.
B.
Black-eyed Susans and daisies used to be part of the same species. A random mutation in a subset of a population caused one group to release their pollen three weeks before the other, causing interbreeding to cease.
C.
Two species of tree crickets live in a Costa Rican dry forest. Their habitats and ranges overlap. The two species never interbreed because the calls of the males are different and do not attract females of the other species.
D.
Indian paintbrush flowers vary greatly in color. Bumblebees form a search image for the most average common color and preferentially pollinate those flowers.
Answer:
B. Black-eyed Susans and daisies used to be part of the same species. A random mutation in a subset of a population caused one group to release their pollen three weeks before the other, causing interbreeding to cease.
Explanation:
Temporal isolation, where temporal relates to time. So temporal isolation is the process where two populations will reproduce at different times/different seasons and therefore cause a split in species. In this case, we see the flowers release pollen at different times and caused a split into two distinct species.
Which of the labeled structures is an adaptation that is primarily responsible for helping a paramecium control its water balance?
Paramecium diagram
A. Structure A
B. Structure B
C. Structure C
D. Structure D
Structure D , The term "contractile vacuole" refers to this structure. The vacuole gathers extra water from the cytoplasm and contracts to release it. As a result, paramecium doesn't swell and explode in hypotonic liquids.
Why are contractile vacuoles necessary for organisms?Specialized contractile vacuoles control the amount of water in cells. Its spherical form allows it to gather extra cell fluid and empty it outside. It is essential for preserving the osmotic pressure inside the cell. Protists are eukaryotes with only one cell and are found in wet and aqueous habitats.
The name "contractile vacuole" refers to what?As its name implies, the contractile vacuole expels water from the cell by contracting. The contractile vacuole periodically expands (collecting water) and contracts (releasing water). Several seconds are required for one cycle, depending on the species .
To know more about contractile vacuole visit :
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Select the statement that BEST answers the following question
based on the information provided
Milk is uniformly mixed it contains several compounds-
water, proteins, fats, and sugars. Is milk considered a
substance or a mixture?
It is a liquid substance with uniform composition
b It is a mixture, only solids are pure substances.
С
It is a mixture that can be separated by physical
means
d
It contains compounds and is therefore a
substance
Answer:
D) It contains compounds and is therefore a substance
Explanation:
A mixture is composed of multiple compounds.
what is food web.what is food web
Answer:
a complicated food chain
Label the different parts of a flower.Choose your answer from the box.
Answer:
1 anther
2 petal
3 style
4 sepal
5pollen tube
6 corolla
7 ovary
8 ovule
9 filament
10 stigma
2 characteristics that determine water's density
Answer:
l
Explanation:
How are tropical rain forests and temperate forests different?
A. Temperate forests have more biodiversity.
B. Temperate forests are more productive.
C. Temperate forests are closer to the equator.
D. Temperate forests have more seasonal changes.
Answer:
d
Explanation:
Tropical rainforests are found closer to the equator where it is warm. Temperate rainforests are found near the cooler coastal areas further north or south of the equator. The tropical rainforest is a hot, moist biome where it rains all year long.
Tropical rain forests and temperate forests are different because temperate forests have more seasonal changes.
How are tropical rain forests different from temperate forests?Tropical rainforests are found closer to the equator having less seasonal changes while on the other hand, temperate rainforests are found near the cooler regions having more seasonal changes.
So we can conclude that tropical rain forests and temperate forests are differen because temperate forests have more seasonal changes.
Learn more about forest here: https://brainly.com/question/13720854
why spaghetti a heterogeneous mixture?
a.its ingredients cannot distinguish easily
b.its has a main component or base ingredient.
c.its ingredient can be distinguish easily
d.it is delicious and mixed well
PLEASE HELP!!!!! Question 7 of 10
The photo shows a boy and his parents.
Which statement best explains why the boy looks different from his parents?
A. He inherited an exact copy of the DNA of one of his parents.
B. He received a gene mutation from both his father and his mother.
C. He inherited genes from both his father and mother.
O D. He changed the sequence of bases in his inherited DNA.
SUBMIT
Answer:
C it is.
Explanation:
what is hormone injection and subcutaneous implants??
Explanation:
The contraceptive injection is a shot that contains hormones, either a progestin alone, or a progestin and an estrogen together, that stop your body from releasing eggs and thickens the mucus at the cervix. You need one shot either once every month or once every three months from a healthcare provider. However once injected, it is not reversible, i.e. in case of side effects it cannot be stopped. The way it works is similar to the pill, or the ring, except you don’t have to remember to take it every day or week, but it probably isn’t the best choice for those scared of needles.
1. What is the text about?
2. What are the steps presented in this process text?
3. What words help you get the process step by step?
4. What do you think will happen when one or two steps are
missed?
Answer:
1. Directions
2
Ride a jeep or tricycle to pass San Juan or Baenotan road.Ask the driver to drop you off at the information officeregister your name as a tourist and coordinate with the trained tourist guide of munieipality of San Gabrielride motorcycle or 'habal=habal' or a jeepneyhave a walk and hike for some hours3. First, second, third, then
4. Good Luck
Explanation:
Which explanation justifies why the theory of evolution is a theory and not a law? (4 points) a The theory of evolution predicts an organism's ability to adapt to its environment. b The theory of evolution can be expressed as a simple mathematical statement. c The theory of evolution explains the existence of diverse forms of life on Earth. d Additional evidence will change the theory of evolution into a law.
Answer:d.Additional evidence will change the theory of evolution into a law.
Explanation:
TRUE OR FALSE: MYCOBACTERIA IS A GROUP OF BACTERIA THAT USED TO BE CLASSIFIED AS ALGAE
Answer:
I think the answer is TRUE
sorry if im wrong
Explanation:
Answer:
False because it is a bacteria fungus :3
Explanation:
:3
Which statement is true about biodiversity?
Answer:
A or C
Explanation:
B and D are plain illogical. C is definately true, but since it's a little too broad I'm thinking that it would be A, since natural disasters can decrease populations which can destroy genetic diversity (see founders effect).
Answer:
The correct answer is C. I just took the test on plato
balance the equation: KrF2+H2O -> Kr + O2 + Hf (the numbers are actually subscripts i just cant make them tiny on my keyboard
Answer:
KrF2 + H2O -> Kr + O2 +2HF
Explanation:
You would just need to add a 2 on the HF, because on both sides it can balance with 2F's and 2 H's
Which is true of reabsorption in the distal convoluted tubule?
Answer: its false
Explan : hope im right
The sun
produces energy through
A. fission
B. photosynthesis
C. fusion
D. photovoltaic cells
Answer:
through nuclear fusion
Which of the following is not a function of tRNA
Answer:
connecting amino acid together to form proteins
hope it will help
Option D is correct. "connecting amino acid together to form a protein" is not a function of tRNA
Unlike DNA, there are three types of RNA that are involved in protein synthesis, messenger RNA, ribosomal RNA, and transfer RNA.
Ribosomal RNA (rRNA) and transfer RNA (tRNA) are not copies of the info in DNA, instead, their codes are created while in the DNA and then cut into smaller coded fragments.
Transfer RNA (tRNA) is found in cells' cytoplasm and ensures the correct amino acids are carried to mRNA codons to form polypeptide chains during protein synthesis. tRNA takes the amino acid to the correct location for protein synthesis in the ribosome.
Some of the functions of tRNA include:
Picking up amino acid specified by the codonTranscribing nitrogen bases into mRNA in the nucleus Recognizing appropriate codon in the mRNAAccording to the explanation above, we can see that "connecting amino acids together to form a protein" is not a function of tRNA
Learn more on tRNA here: https://brainly.com/question/11439210
Describe the organization of a synovial joint.
Answer:
The bones of a synovial joint are surrounded by a synovial capsule, which secretes synovial fluid to lubricate and nourish the joint while acting as a shock absorber. The ends of the joint bones are covered with smooth, glass-like hyaline cartilage which reduces friction during movement.
Explanation:
hope this helps
Problem 1
In dust bunnies, short ears are dominant to long ears. If a heterozygous female mates
with a long ear male, what are the chances their offspring will have short ears?
Answer:
50% or 1/2
Explanation:
This question involves a single gene coding for ear length in dust bunnies. The allele for short ears (S) are dominant to the allele for long ears (s). This means an heterozygous individual (Ss) will possess short ears.
According to this question, If a heterozygous female (Ss) mates with a long ear male (ss), the parents will produce gametes as follows:
Ss - S and s
ss - s and s
Using these gametes in a punnet square (see attached image), the following proportion of offsprings will be produced:
Ss, Ss, ss, ss
- Ss (1/2 or 50%) offsprings will have short ears.
- ss (1/2 or 50%) offsprings will have long ears.
Nerve cells do not replicate their DNA after reaching maturity. A cell biologist observed that there was x amount of DNA in a human nerve cell. In four other types of human cells, labeled A-D, she measured the following amounts of DNA:
cell A, 2x; cell B, 1.6x; cell C, 0.5x; cell D, x
Match the four cell types with the following choices: (1) sperm cell; (2) bone cell just beginning interphase; (3) skin cell in the S phase; (4) intestinal cell beginning mitosis. (Hint: review the phases of the cell cycle and mitosis in chapter 12 if needed!).
Cell Types, Amount of DNA - Specific Cell
cell A, 2x:
cell B, 1.5x:
cell C, 0.5x:
cell D, x:
Answer:
Cell A= Intestinal cell begining mitosis
Cell B= Skin cell in S phases
Cell C= sperm cell
Cell D= bone cell just beginning interphase
what is Sediment pollution?
Answer:
sediment is considered when rhere is too much of pollution
I NEED HELP PLS
Chieko is doing an experiment with a water clock. She fills a 2-liter soda bottle with water and marks the water level. She puts two tiny pinholes in the base of the bottle. Water seeps out. She checks the time against her watch. After an hour, she marks the new water level. She repeats this process until the water is all gone. Chieko made six hour marks on the bottle, representing the passage of six hours. How can Chieko test her water clock to see if the timing is accurate?
Group of answer choices
Repeat the experiment using a better watch
Repeat the experiment using less water in the bottle
Repeat the experiment using a kitchen timer set to go off each hour
Repeat the experiment using the same amount of water and the same watch
Answer: I think the best answer would be C.
Explanation: I think that is correct.
Where does the filtrate go from the distal convoluted tubule? a) Loop of Henle b) Collecting duct c) Proximal convoluted tubule d) Bowman's capsule
After passing through the distal convoluted tubule, the filtrate drains into the collecting duct. Thus, B would be the correct answer.
Topic: Waste water treatment
pls answer will mark as brainliest
Answer:
D A C B
Explanation:
i hope its right
When DNA replication occurs before meiosis, the original DNA strand
GTC ACA GGC ATC is copied into complementary strand CAG CCG TAG.
What type of mutation has occurred?
A) deletion
B) insertion
o
inversion
D) translocation
In this particular insertion there is an insert of three bases. Complementary strands in DNA are the opposite strand, so Adenine is coupled to Thymine and Guanine is coupled to Cytosine.
#BrainlyIsFunExplain the three principles of the cell theory
Answer:
The three tenets to the cell theory are as described below: All living organisms are composed of one or more cells. The cell is the basic unit of structure and organization in organisms. Cells arise from pre-existing cells.
Explanation:
Can I have brainliest?
Answer:
Answer: 1) All the living organims are compound by one or more cells . 2) The cell is the structural and functional basic unit of life. 3) All cells are originated from other cells.
Explanation: Cell theory describes the characteristics of living organisms and was proposed and refined by many scientists like Schwann and Schleiden. The first principle describes the constitution of living organisms, all of them, unicellular or multicellular are compund by cells. The second principle says that cell is the unit of life in fuctions as metabolism and structural as in tissues. The third principle says that cells can only be generated by division of preexisting cells.
Explanation: