Answer:
Transpiration is loss of water vapor from leaves. Guard cells regulate whether stomata are open or closed based on availability of water in the plant. When stomata are closed, the plant is not able to exchange oxygen and carbon dioxide gas with the atmosphereExplanation:
The gas exchange of plants is part of the cellular respiration process, where the plants both remove and release gases into the atmosphere. This exchange happens through structures present in the leaves of plants, which are called stomata. Stomata function as doors, if they are closed it is impossible for the plant to promote gas exchange, but if they are open. Transpiration occurs with the release of water vapor through open stomata. It is in this water vapor that the plant releases oxygen into the atmosphere.
The opening and closing of the stoma is a highly regulated process, because opening the stoma makes the plant lose water. In this case, the guard cells are responsible for opening and closing the stoma whenever necessary and the plant has good water levels.
How does reducing gene flow cause speciation?
A. It allows divergence to occur.
B. It eliminates fixed alleles.
C. It increases gene flow.
D. It stops adaptive radiation.
A. People can Change the way that the genes flow
Answer:just look at the pic brothas
Explanation:
Which of the following behaviors is an inherited trait in dogs?
Catching a ball in its mouth
Leading a blind person
Sitting on command
Barking when frightened
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Which of the following explains the flexible nature of plant stems?
a. Cell volume of parenchyma cells
b. Thickness of cell wall in collenchyma cells
c. Lack of nucleus in sclerenchyma cells
d. Presence of cellulose in plant cell wall
Answer:
D. I.
maybe its D, I think it might be D
please help i am giving away brainiliest
Which of the following is necessary in order for natural selection to act on a
population?
A. selective pressures that favor certain individuals
B. asexual reproduction through mitosis
C. equal chance of survival for all individuals
D. decrease in diversity through genetic drift
no dam links
Answer:
A. selective pressures that favor certain individuals
Explanation:
Suppose a human child had a mother with dyed-pink hair and a father who was missing a finger (lost in an accident). Would the child inherit these traits? Explain.
Answer:
No
Explanation:
These traits are not genetic, thus the parents do not carry the sex-specific Alleles to pass off to offspring.
Which of the following phases is the first
step in mitosis?
Answer:
prophase is the first phase
Explanation:
PMAT
PROPHASE
METAPHASE
ANAPHASE
TELOPHASE
substance in which the monomer is a nucleotide _______
A - Carbohydrates
B - Nucleic Acids
C - Proteins
D - Fats
Nucleic acid is a substance in which the monomer is a nucleotide. Therefore, option B is correct.
What are nucleic acids?Biopolymers and macromolecules called nucleic acids are important for all known forms of life. They are constructed of monomers called nucleotides, which are composed of a nitrogenous base (adenine, guanine, thymine, uracil, and cytosine), a phosphate group, and a 5-carbon sugar.
The components that make up an individual's genetic code are nucleic acids. Deoxyribonucleic acid (DNA) and ribonucleic acid are the principal two examples of nucleic acids (RNA). They have an important role in heredity and protein synthesis.
Thus, A nucleotide serves as the monomer of a material known as nucleic acid. Therefore, option B is correct.
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Meanwhile the ovary itself releases a hormone called estrogen which causes the uterine lining to increase in thickness.The uterine lining becomes thicker so that the fertilized egg can attach to it
Answer:
Meanwhile, the ovary itself releases a hormone called estrogen which causes the uterine lining to increase in thickness. The uterine lining becomes thicker so that the fertilized egg can attach to it. It is correct.
Explanation:
The hypothalamus, which is in the brain, releases a hormone called Gonadotrophin Release Hormone (GnRH). GnRH travels to the hypophysis, which is a gland located in the lower part of the skull. The GnRH makes the hypophysis release a hormone called Follicle Stimulant Hormone (FSH). This hormone travels to the ovaries, making it release estrogen. This hormone is in high concentrations during the 4th or 6th day of the cycle up to the 14th day, which is when ovulation happens. Estrogens make the endometrium, which is the outer layer of the uterus, grow making it thicker to prepare itself to attach the fertilized egg and provide to it the necessary nutrients to grow.
If the fertilization does not happen, the thickened endometrium will be expelled from the uterus some days later during menstruation.
In females, the uterine lining is at the site of fertilized egg attachment. The attachment of the fertilized egg makes the lining thicker.
What is the role of estrogen in uterine lining shedding?The estrogen hormone is produced by the ovaries of females. The hormonal cycle with rising, estrogen, and progression causes the menstrual cycle.
The non-fertilized egg triggers the release of estrogen, and the uterine line sheds off.
However, the fertilization of the egg results in a decreased signal of estrogen in the female body, and the uterine lining becomes thick without shedding.
Thus, the statement about the thickening of the uterine lining with the fertilization of the egg is correct.
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One adaptation to life in flowing water is _____.
A] for anchorage
B] breeding in oceans
C] needing little oxygen
Answer:
A
Explanation:
Plants that live in rivers or any body of flowing water have strong roots to anchor them to the shore.
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Answer:
The planet to revolve once around the sun
Explanation:
When it does that, it will complete its yearly phase. Some planets tend to revolve faster than others.
what are the many little branches of the respiratory system?
Explain the Carbon cycle in 3 paragraphs or more.
Answer:
Carbon cycle is the process where carbon compounds are interchanged among the biosphere, geosphere, pedosphere, hydrosphere, and atmosphere of the earth.
1) Carbon present in the atmosphere is absorbed by plants for photosynthesis.
2) These plants are then consumed by animals and carbon gets bioaccumulated into their bodies.
3) These animals and plants eventually die, and upon decomposing, carbon is released back into the atmosphere.
4) Some of the carbon that is not released back into the atmosphere eventually become fossil fuels.
5)These fossil fuels are then used for man-made activities, which pumps more carbon back into the atmosphere.
Carbon in the atmosphere is present in the form of carbon dioxide. Carbon enters the atmosphere through natural processes such as respiration and industrial applications such as burning fossil fuels.
please help i’ll give brainliest
Answer:
grasshopper and rabbit
Explanation:
Describe a Scientific Process.
Answer:
hope it helps
Explanation:
The process in the scientific method involves making conjectures (hypotheses), deriving predictions from them as logical consequences, and then carrying out experiments or empirical observations based on those predictions.
PLEASE HELP
" Your alien friend from planet Xenon is visiting and wants to learn how to breed pea plants. You show your friend a recent batch of pea plants with purple flowers that you grew by crossing plants that had purple flowers with plants that had white flowers. Your alien friend is still confused as to why all your plants have purple flowers. How would you explain the most, simplest way possible, what happened?
Enter your answer in the space provided. "
Answer:
well you mixed two different types or colors of flowers
Explanation:
What is the proper way to introduce a motion using correct parliamentary procedure ?
Answer:
um i think , that it's i move
Answer:
Step 1: A member of a board who wants to make a motion must first be recognized by the chair of the meeting. ...
Step 2: A member seconds the motion. ...
Step 3: The chair states the motion: “It is moved and seconded to ... ” At this point the motion now belongs to the group (not the maker or the “seconder”).
Explanation:
Step 1: A member of a board who wants to make a motion must first be recognized by the chair of the meeting. ...
Step 2: A member seconds the motion. ...
Step 3: The chair states the motion: “It is moved and seconded to ... ” At this point the motion now belongs to the group (not the maker or the “seconder”).
PLSS HELP IMMEDIATELY!!! ILL MARK BRAINIEST IF U DONT LEAVE LINKS OR GUESS!!!
Answer:
Blood is pushed through vessles
Explanation:
all the other answers are... weird.
Answer:
C
Explanation:
Heart needs exercise and at all times if your heart doesn't get rest you die so it's the most important part
Black coat is dominant over white coat in guinea pigs. A homo-zygous black pig is mated with another homo-zygous black pig.
What are the genotypes of the parents?
A.) bb and bb
B.) BB and BB
C.) Bb and Bb
D.) BB and bb
Answer:
BB and BB
Explanation:
Which of the following is not made of DNA?
O chromatids
O chromosomes
centromeres
O chromatin
Answer:
chromatin po
Explanation:
pabrainly please
otions are in the second question please help asap any links will be reported
Answer:
Trees, crickets, bacteria, and deer are biotic. The rest are abiotic.
Explanation:
Biotic factors are living organisms, while abiotic factors are non living. Hope it helps :)
SRE
Statement: Many diseases have both genetic and environmental factors.
Reasoning:
Evidence:
Please help
Answer:
genetic factor is that in a persons DNA a piece of it could malfunction and create some kind of weakness and the air if it is polluted could create some kind of disease because of the dirty air
Explanation:
don't judge me if its wrong but pls give me brainliest im so close to ranking up
8. Which of these is not a possible effect of the destruction of the
rain forest?
O A. drought
O B. crop failure
O c. more oxygen in the air
O D. increase in carbon dioxide in air
Answer:
drought
Explanation:
droughts are bad for the rain forests without water some plants can die
Which RNA base bonds with adenine
Answer:
Three of the four nitrogenous bases that make up RNA — adenine (A), cytosine (C), and guanine (G) — are also found in DNA. In RNA, however, a base called uracil (U) replaces thymine (T) as the complementary nucleotide to adenine
Explanation:
pasteurization is not required for which type of egg or egg product ?
Select ALL the correct answers.
Which statements are true regarding an energy pyramid?
The number of producers is greater than the number of primary consumers.
The amount of energy at the primary consumer level is greater than the amount of energy at the
secondary consumer level.
The number of primary consumers is less than the number of secondary consumers.
The amount of energy at the producer level is less than the amount of energy at the primary
consumer level.
Answer:
The number of producers is greater than the number of primary consumers.
The amount of energy at the primary consumer level is greater than the amount of energy at the secondary consumer level.
Explanation:
Describe one way that a natural event can cause a decline in biodiversity.
Answer:
Earthquakes, landslides, volcanic eruptions and natural bush fires all affect the many different ecosystems on our planet.
Explanation:
::)
How does widespread illness in food animals affect people's health?
1
Which of the following organisms is most likely to
reproduce asexually?
A
Leopards
B
Bacteria
C
Goldfish
D
Sunflowers
Answer:
goldfish
Explanation:
Hello! I have some questions I’m stuck on. this is about cells and this is middle school level.
1. How did robert Hooke contribute to our understanding of cells?
2. The cell theory describes three basic characteristics of cells and living things. Summarize these basic characteristics.
3. Compare how cells in unicellular and multicellular organisms perform the tasks needed for life.
MULTIPLE CHOICE
1. If you were to compare the function of a cell to the function of a parts in the house which part of the house would match a cell?
A. Roof
B. Bricks
C. Air conditioner
D. Pluming system
Thank you to anyone who answers
Answer:
To me i would say B is the answer
1 point
2. In July, a student tested the soil in two plots and calculated the
concentration of nitrogen compounds present in each plot. The student
then planted 20 seedlings in the first plot and allowed them to grow.
Nothing was planted in the second plot. The student tested the soil in both
plots again after one month. The concentration of nitrogen compounds
had decreased in the first plot but had remained the same in the second
plot. Which of the following best explains the decrease in nitrogen
compounds in the first plot? *
A. The nitrogen compounds had broken down into elements.
B. The nitrogen compounds were absorbed by the seedlings for their growth.
C. The nitrogen compounds escaped through air pockets created by the seedlings'
roots.
D. The nitrogen compounds had evaporated because of the warm summer
temperatures.
Answer: B. The nitrogen compounds were absorbed by seedlings for their growth.
Explanation:
For the plant to have energy accessible when and where it needs it to maximize yield, nitrogen is essential. As proteins and enzymes control water and nutrient intake, this important nutrient is even present in the roots. Thus, option B is correct.
What nitrogen compounds were absorbed by the seedlings?Plants absorb ammonium and nitrate during the assimilation process, and these substances are then converted into organic molecules containing nitrogen, such as DNA and amino acids.
Plants may absorb substances from soils like nitrate, nitrite, ammonia, and ammonium, which are subsequently utilized to create proteins in both plants and animals.
Therefore, The nitrogen compounds were absorbed by the seedlings for their growth. After they reach three inches in height, seedlings should be fertilized; after that, they can get weekly fertilization until being transplanted.
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