Answer:
All organisms are composed of one or more cells. Cells come from other cells by division. Cells are the smallest living things. Eukaryotic cells have evolved from prokaryotic cells.
Explanation:
quizlwt Select all that are true regarding gas exchange in a vascular plant. Guard cells regulate whether stomata are open or closed based on availability of water in the plant. 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 atmosphere. When stomata are closed, the plant is not able to exchange oxygen and carbon dioxide gas with the atmosphere. Stomata are open when a plant is low on water, and closed when a plant has plenty of water. Stomata are open when a plant is low on water, and closed when a plant has plenty of water. Plants close their stomata to reduce water loss. Plants close their stomata to reduce water loss. Guard cells regulate whether stomata are open or closed based on availability of sugars in the plant. Guard cells regulate whether stomata are open or closed based on availability of sugars in the plant. Transpiration is loss of water vapor from leaves. Transpiration is loss of water vapor from leaves. Skip to navigation
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.
Which of the following actions increases the volume of your lungs?
d. Gases move from areas of lower pressure.
c. Air pressure increases inside the lungs.
a. The diaphragm flattens and moves downward.
b. The rib cage becomes smaller.
Answer:
B
Explanation:
During the process of inhalation, the lung volume expands as a result of the contraction of the diaphragm and intercostal muscles (the muscles that are connected to the rib cage), thus expanding the thoracic cavity. Due to this increase in volume, the pressure is decreased, based on the principles of Boyle's Law
2.) State the relationship between photosynthesis and cellular respiration.
Answer:
Photosynthesis converts carbon dioxide and water into oxygen and glucose. Glucose is used as food by the plant and oxygen is a by-product. Cellular respiration converts oxygen and glucose into water and carbon dioxide. Water and carbon dioxide are by- products and ATP is energy that is transformed from the process.
Explanation:
A lion stalks, kills and eats an antelope. After the lion is done, vultures and other scavengers such as mice come to feed on the remains of the antelope. Which organism is the predator in this scenario?
A) Vulture
B) Mice
C) Lion
D) Antelope
Answer:
C
Explanation:
Answer:
C) Lion
Explanation:
The lion was the first animal to start the food cycle because it originally killed the antelope and ate the majority of it and scavengers came to eat the leftovers.
(Systems in Action)
1 ) Work is energy in action, It is measured in
A ) Newton’s
B ) Joules
C ) Kilograms
D ) You can’t measure work
2 ) An ax is which type of machine?
A ) A first-Class lever
B ) A wedge
C ) A pulley
D ) An incline plane
3 ) True or False - There are two types of levers
A ) True
B ) False
4 ) 9.8N = ___kg
A ) 3kg
B ) 1kg
C ) 1.5kg
Answer:
1) D
2) B
3) True
4) B
Explanation:
PLEASE HELP QUICK !!
7. Certain grass that grows in salt water has the ability to remove the
excess salt from the water. This is an example of a(n) *
O species
O fossil
O genetic resistance
O adaptation
Answer:
c. Genetic resistance
Explanation:
THE CHOICES ARE IN THE PIC PLEASE HELP
when does the process of sublimation occur
Answer:
c
Explanation:
because the solid ice will sublime into gas
____ The Rhino and the tick bird.
A. Mutualism
B. Commensalism
C. Parasitism
Answer:
a do i believe
Explanation:
can you please help me
Answer:
A. Mutualism
Explanation:
Hope this helps
Bacteria are capable of
reproducing quickly. Explain how
this adaptation is beneficial in
their ability to become resistant
to antibiotics
Answer:
Antibiotics, also known as antimicrobial drugs, are drugs that fight infections caused by bacteria. Alexander Fleming discovered the first antibiotic, penicillin, in 1927. After the first use of antibiotics in the 1940s, they transformed medical care and dramatically reduced illness and death from infectious diseases.
The term "antibiotic" originally referred to a natural compound produced by a fungus or another microorganism that kills bacteria which cause disease in humans or animals. Some antibiotics may be synthetic compounds (not produced by microorganisms) that can also kill or inhibit the growth of microbes. Technically, the term "antimicrobial agent" refers to both natural and synthetic compounds; however, many people use the word "antibiotic" to refer to both. Although antibiotics have many beneficial effects, their use has contributed to the problem of antibiotic resistance.
Antibiotic resistance is the ability of bacteria or other microbes to resist the effects of an antibiotic. Antibiotic resistance occurs when bacteria change in some way that reduces or eliminates the effectiveness of drugs, chemicals, or other agents designed to cure or prevent infections. The bacteria survive and continue to multiply causing more harm.
What can make someone feel good, feel bad, and sometimes both?
saying good things like your so smart and your an angle and saying bad is your a devil
Answer:
eating, studying, taking care of yourself, taking drugs, falling in love when its a wrong time for it, being mean to parents
Explanation:
标题:
Arrange their 3 homologous pairs into Metaphase 1 (this will represent tetrads)
3. How many chromatids do you have?
RUBE
Answer:
Six pairs of chromatids.
Explanation:
There are six chromatids pair present if there are 3 homologous pairs of chromosomes because in each chromosome two chromatids are present. A chromatid refers to two identical halves of a replicated chromosome. Each chromatid has two arm like structure called telomere and these two chromatids are attached to one another from a point called centromere. So we can conclude that three pairs chromosomes have six pairs of chromatids.
POST-lab Question:
Most biological adaptations are specific to a certain habitat, and will not provide an advantage to
an organism that moves outside this environment. What evidence have you
seen in this lab that
would support this idea?
Answer:
me
Explanation:
becesu im the best guy
Which product shown in the picture is not made for a natural resource that comes from living thing
Answer:
metal fork is the answer
Answer:
the metal fork is the answer !!!!
Explanation:
Here -
1. wood comes from a tree that is living.
2. chicken breast is from a chicken that is living.
3. slice tomatoes are from plants which plants are a living thing.
What’s the significance to scientists of finding a new, unknown fossil?
A. It allows scientists to formulate new theories.
B. It enables scientists to better differentiate among the various species.
C. It proves that there’s an unlimited supply of fossils to be unearthed.
D. It provides evidence of links between evolutionary species.
E. It provides scientists with a reason to continue their research.
Answer: D
Explanation:
The significance to scientists of finding a new, unknown fossil is that it provides evidence of links between evolutionary species
Answer:
D
Explanation:
If factors(food, water, shelter, etc.) are
limited-meaning there are VERY FEW of
them, what will most likely happen to the
organisms? Hint: There are 2 possible
answers. The organisms will most likely
Please two answer
Answer:
What are the answer choices
Answer:
Adapt or die out. I'm pretty sure these are the right answers considering they are what happen most frequently in nature to all types of animals and organisms.
Explain how a carbon atom from a CO2 molecule in the air can end up as a carbon atom in a protein in a plant cell
Answer:
Photosynthesis and metabolism are among the most complex areas in biology so given the nature of this forum I've kept the answers simple and brief.
Carbon is of central importance to all biological systems due to its special bonding properties allowing it to form various bonds with other atoms and produce a wonderfully complex range of molecules used by life.
In photosynthesis inorganic carbon in carbon dioxide gas is fixed to hydrogen to produce sugar, an organic molecule. In this case the carbon gains electrons so it is 'reduced' and this process requires energy in the form of light. Once in sugar form, the process can be reversed and the carbon can be oxidised back into carbon dioxide during cellular respiration, releasing energy.
So in photosynthesis, the carbon from carbon dioxide is reduced to form a sugar molecule. When transitioning to respiration, the carbon in the sugar is oxidised to form carbon dioxide again in the reverse reaction to photosynthesis.
The carbon is transferred between molecules through various intermediate steps during these processes, involving enzymes (biological catalysts) to assist in cleaving specific bonds at each stage. During cellular respiration (an energy release reaction) as the carbon is successively oxidised electrons are liberated that are used as part of the energy release. These electrons are captured or 'carried' by special organic molecules called NAD and FAD (reducing them) which in turn can then be oxidised to produce the universal energy currency of life: ATP molecules. ATP is a small bio molecule containing a high energy phosphorous bond that can be broken to release energy to do cellular work. It is used by all life that we know of and is the ultimate product of cellular respiration.
The carbon atom in a CO₂ molecule in the air can become a part of the
cellulose molecule in a plant by the carbon dioxide molecule reacting with the water during photosynthesis to form Glucose.
This formula can use for the reaction: 6CO₂ + 6H₂O → C₆H₁₂O₆ + 6O₂
The glucose molecule formed is then translocated to other parts of the
plants which are such as the roots and stems and help in the formation of cellulose.
Also, aThis is basically how the carbon atom in carbon dioxide becomes a cellulose molecule.Learn more about:
https://brainly.com/question/6868121
Which plant tissue has air spaces in it?
A: Palisade cells
B: Waxy cuticle
C: Upper epidermis
D: Spongy mesophyll
Which is the correct definition of the Circulatory system?
A. Breaks down food into smaller pieces and absorbs those nutrients into the body.
B. The system fights disease so the body stays healthy.
C. Releases wastes from the body and helps in maintaining homeostasis
D. The system that circulates blood and oxygen through the body, consisting of the heart, blood vessels and blood.
Answer: d
Explanation:
Answer:
d.it regulate the blood and oxygen through
The population of America is ethnically heterogeneous. What does this mean?
Answer:
it means that there are allot of people with allot of diffrent ethnicities
Where do plants grow?
A. underwater
B. in the Sun
C. where plants can capture light
D. in a closed space with little oxygen
Answer:
C. where plants can capture sun light
Explanation:
Describe two energy transformations that take place in a race car during a race?
Answer:
Explanation:
Race car drivers and teams monitor the engine for how effective it is transferring energy from potential and kinetic through RPM, or how fast the engine is moving. Kinetic energy inside the engine is transformed from chemical energy (fuel, air and spark plugs) to mechanical energy.
Hope this helped!!!
Grass
Tree
Figure 34
Which of the following is a food chain in the food web shown in Figure 3-4?
A)
tree, rabbit, hawk, snake
B)
grass, grasshopper, frog, snake
grass, caterpillar, robin, hawk
D)
tree, deer, mountain lion, fox
Sentence Arrange s— Put the steps of DNA replication in order by writing a number in the space before each statement.
Two new molecules of DNA are created.
_____
DNA polymerase attach the free-floating nucleotides to the exposed nitrogen bases.
_____
Helicase begins to break the hydrogen bonds between nitrogen bases.
_____
Cell starts into the mitosis phase of the cell cycle.
_____
Free floating nucleotides pair up with exposed nitrogen bases.
_____
Complete the statement guanine, cytosine, and thymine are the four nitrogen bases.
_____
In DNA, always forms hydrogen bonds with guanine.
_____
The sequence of carries the genetic information of an organism
_____
The process of produces a new copy of an organism's genetic information.
_____
The double coiled shape of DNA is called a
_____
Answer:
1. Cell replication starts into the mitosis phase of the cell cycle
2. Helicase begins to break the hydrogen bonds between nitrogen bases
3. The double coiled shape of DNA is called double helix
4. DNA polymerase attach the free-floating nucleotides to the exposed nitrogen bases.
5. Free floating nucleotides pair up with exposed nitrogen bases
6. Guanine, Adenine, cytosine and thyamine are the four nitrogen bases
7. In DNA, cytosin always forms hydrogen bonds with guanine.
8. The sequence of DNA carries the genetic information of an organism
9. The process of mitosis produces a new copy of an organism's genetic information.
10. Two new molecules of DNA are created
Explanation:
Through this replication process two complete molecules of DNA are created from one DNA molecule, with a double helix structure. This event is important for every organism in order for they to grow, reproduce and repair.
There are many proteins and enzymes that take part in all these steps.
The correct order of DNA replication is:
1. Cell replication starts into the mitosis phase of the cell cycle.
2. Helicase begins to break the hydrogen bonds between nitrogen bases.
3. The double coiled shape of DNA is called a double helix.
4. DNA polymerase attaches the free-floating nucleotides to the exposed nitrogen bases.
5. Free-floating nucleotides pair up with exposed nitrogen bases.
6. Guanine, Adenine, cytosine and thymine are the four nitrogen bases.
7. In DNA, cytosine always forms hydrogen bonds with guanine.
8. The sequence of DNA carries the genetic information of an organism.
9. The process of mitosis produces a new copy of an organism's genetic information.
10. Two new molecules of DNA are created.
What is DNA replication?
DNA replication is the process by which a molecule of DNA is duplicated.
When a cell divides, it must first duplicate its genome so that each daughter cell winds up with a complete set of chromosomes.
Thus, the correct order of DNA replication is that.
To learn more about DNA replication click here:
https://brainly.com/question/16464230
What is the end result of transcription?
an amino acid chain (protein)
messenger RNA (mRNA)
complementary DNA
Okazaki fragments
Put the following molecules in order of the correct sequence they are made in protein synthesis.
Reorder answers
RNA
Protein
Gene
Answer: 1. messenger RNA (mRNA). 2. rna, gene, protein. brainliest?
Explanation:
The end result of transcription is mRNA, and the correct sequence of molecules in protein synthesis is Gene → Transcription (RNA) → mRNA → Protein.
Transcription is the process in which a segment of DNA is used as a template to synthesize a complementary mRNA molecule. It occurs in the nucleus of eukaryotic cells and in the cytoplasm of prokaryotic cells. During transcription, the DNA molecule unwinds, and an enzyme called RNA polymerase binds to a specific region of the DNA known as the promoter. The RNA polymerase then moves along the DNA strand, synthesizing a complementary mRNA molecule using the base pairing rules (A with U, G with C).
The end result of transcription is the production of mRNA. mRNA is a single-stranded molecule that carries the genetic information from the DNA to the ribosomes in the cytoplasm. It serves as a template for translation, where the information encoded in the mRNA is used to synthesize proteins.
Regarding the sequence of molecules in protein synthesis, the correct order is as follows:
Gene: A gene is a specific sequence of DNA that contains the instructions for making a protein. It serves as the starting point for protein synthesis.Transcription (RNA): Transcription is the process in which an mRNA molecule is synthesized from a DNA template. This step occurs in the nucleus.mRNA: The mRNA molecule carries the genetic information from the gene to the ribosomes. It serves as the template for protein synthesis.Protein: Protein synthesis occurs during translation, where the mRNA is read by ribosomes, and amino acids are assembled in the correct order to form a protein.Therefore, the correct sequence of molecules in protein synthesis is Gene → Transcription (RNA) → mRNA → Protein.
To learn more about transcription, here
https://brainly.com/question/6604811
#SPJ6
Which best matches objects that a scientist would include on a list describing a forest ecosystem?
different types of animals and plants and the forest soil
O one animal species, the soil, water, and nutrients
o hall the living things in the forest ecosystem
O different types of soil, rocks, and water sources in the forest
Answer:
all the living things in the forest ecosystem
Can someone help me? :)
Which molecules do cells need to release energy? (Can you make it look like 7th grade writing please well if you can)
Answer:
Cells need oxygen and glucose.
Without oxygen, electron transport chain cannot take place and the cells cannot get the energy they need (since the cell uses oxygen to break down glucose which os what produces energy). When the cells cannot perform their function, they die.
People/ humans come help crazy people hahhahahaha xd lolo everting crazy
the total length of a path taken by an object to travel from one place to other is called ---------a. speed b. velocity c. displacement d. distance traveled
☺☺☺☺☺☺☺☺
QUICKLY!!
If the DNA strand is ATTTAG, what is the mRNA strand?
transforms one strand of nucleic acid into two sets so that each set may be passed on to daughter cells in cell division
Answer:
If you`re asking what the term for this definition is, it`s DNA replication
Explanation:
Answer:
DNA Replication
Explanation:
In molecular biology, DNA replication is the biological process of producing two identical replicas of DNA from one original DNA molecule. DNA replication occurs in all living organisms acting as the most essential part for biological inheritance. Additionally, Walther Flemming's drawing of chromosomes. This process involves replication of the cell's chromosomes, segregation of the copied DNA, and splitting of the parent cell's cytoplasm. The outcome of binary fission is two new cells that are identical to the original cell.