Answer:
c. the hummingbird and the tubular flower it pollinates
2. Which describes reproduction in seabirds?
a. ovoviviparous, giving birth at sea
b. oviparous, laving eggs in nests on land
C. viviparous, giving birth on land
d. viviparous, giving birth at sea
Answer: B
Answer:
I thnk it is d
Explanation:
Up to what concentration is carbon dioxide a limiting factor for photosynthesis in low light intensity?
Answer:
Carbon Dioxide limits photosynthesis at a concentration of around 400 ppm (ambient concentration) in low light.
Explanation:
Limiting factors affect the photosynthetic rate, decreasing the potential amount of carbohydrate made via photosynthesis. Carbon dioxide is essential to this form of biosynthesis- it provides the inorganic carbon that is integrated into carbohydrate molecules.
Carbon dioxide is typically present in the atmosphere at concentrations of 0.04%. Light intensity typically cause stomata to open, and increase CO2 uptake. Higher concentrations of CO2 up to 0.1%, cause dramatic increases in the photosynthetic rate.
Low light, thus means less stomatal opening, and less CO2 uptake. As low light intensity can be limiting, it lowers the concentration of Carbon dioxide at which the rate becomes constant.
Through the process of photosynthesis, plants make their own food using energy from the Sun, carbon dioxide from the air, and water from the ground. This food can then be stored for later use, or energy from the food can be released by the plant through the process of cellular respiration. This energy is then used to perform other life processes.
What is another common use of the food produced by plants?
Please I will mark brainliest just please help
A.The food is converted entirely into heat energy.
B.The food is vaporized to help fuel the Sun.
C.The food is used by an animal when it consumes the plant.
D.The food is excreted as waste and is no longer useful.
Answer:
D is the correct amwsers
Answer:
the food is used by an animal when it consumes a plant
Explanation:
Gene expression is regulated to ensure that the correct proteins are made when and where they are needed.
A. True
B. False
Two bacterial daughter cells about the same size with identical DNA may be formed by the process of
Answer:
mitosis
Explanation:
If you find a rock field with lots of conglomerate rocks, with lots of rounded rocks cemented together in big clusters, what can you say about the area you found?
it once was covered by magma
the area was once covered by a moving stream of water
the area was once shaken by earthquakes
Answer:
I think is B
Explanation:
The land around you, no matter where you live, is made of rock. If you live in a place that has good rich soil, the soil itself is finely broken down or weathered rock.
People that live in a desert region can easily find rocks on the surface. These rocks lay on a surface of clay that is also a product of weathering rock. Weathering is the process of breaking down rocks and minerals into smaller pieces by water, wind, and ice.
Sedimentary rocks are formed from the breaking apart of other rocks (igneous, metamorphic, or sedimentary rocks) and the cementation, compaction and recrystallization of these broken pieces of rock.
Sedimentary rocks are formed from broken pieces of rocks. These broken pieces of rock are called sediments. The word "Sedimentary" comes from the root word "Sediment".
Sedimentary rocks are usually formed in water. Streams and rivers carry sediments in their current. When the current slows around a bend or the river empties into a lake, or ocean, or another river the sediments fall out because of gravity. The larger sediments fall out first and the lightest sediments fall out last.
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The thing that can be said about the area is B. the area was once covered by a moving stream of water.
Conglomerate rocks refer to sedimentary rocks that are made of sand and rounded pebbles which are held together by calcite, silica, or iron oxide.
Since there is a rock field with lots of conglomerate rocks, this could be a result of weathering. In such a case, the area may be once covered by a moving stream of water which could have led to the rocks that were formed.
Read related link on:
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Asses which question are relevant to ask about the role of mieois
Answer:
To reproduction
A process which Two parent cells
union to produce four daughter cells
When parasites are found in food, the food has been exposed to _____ contamination.
biological and physical
biological
chemical
physical
Biological and Physical.
Answer:
Biological
Explanation:
7 attempts till I got 100% on the quiz in edge
Which statement below provides evidence to support the endosymbiotic theory?
A. Membranplasma membrane.
B. Both eukaryotes of the endoplasmic reticulum and Golgi apparatus are similar to the test and prokaryotes contain DNA.
C. Mitochondria and chloroplasts contain DNA similar to prokaryotic DNA
D. Both eukaryotes and prokaryotes contain ribosomes.
Answer:
c. mitochondria and chloroplasts contain dna similar to prokaryotic dna
Explanation:
if i remember correctly the endosymbiotic theory explains how eukaryotic cells had originated from prokaryotic cells or something. it is theorized that mitochondria and chloroplasts were once free living prokaryotes, and this is evidenced by mitochondria and chloroplasts having their own dna and double membranes
Please help!!
How large is the biosphere?
A. Anywhere water is found
B. Anywhere oxygen is found
C. Anywhere life is found
Answer:
if im not mistaken it should be c. anywhere life is found
Explanation:
Is anyone else having trouble with brainly right now? Mine wont let me type anything in, like every time I try it just says NO MATCHES WERE FOUND. its annoying and I don't know how to fix it. ????
Answer:
sometimes the questions bug out idek whats going on
Explanation:
please help me, i need this done by the end of my class period!!!
Answer:
The green circle is the phosphate group
The purple on the lefts is the Deoxyribse sugar
The orange one is the nitrogen base
The yellow one is I thinks its the nitorgen base
The purple one on the right is the Deoxyribse sugar
The green circle one on the right is the phospate group
I hope I help :)
Explanation:
Draw a cell in a beaker. Show that the cell is hypertonic for sodium (Na+).
What do sclerenchyma and collenchyma have in common? They are both thin-walled. They are both dead cells. They both function for support. They both function for food production and storage.
Answer:
They both function for support
Explanation:
Collenchyma cells gives support to extra structural regions as well as sclerenchyma are responsible for the support of plants.
Sclerenchyma and collenchyma have a common factor as they both function for support.
What is sclerenchyma and collenchyma?Collenchyma cells is known to be a kind of supporting tissue and it also have some kind of irregular cell walls.
The work of sclerenchyma is to act as support to plant and as such, Sclerenchyma and collenchyma have a common factor as they both function for support.
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In this series of metabolic reaction, Compound R is converted into Compound A, and
Enzyme X then catalyzes the conversion of Compound A into Compounds B and D.
Compound B is converted to Compound C.
Assume that Compound Cinhibits Enzyme X and that Compound C is not consumed
in a subsequent reaction. As the concentration of Compound C increases, the rate of
production of which compound is LEAST likely to decrease?
A. Compound A
B. Compound B
C. Compound C
D. Compound D
Answer:
A. Compound A
Explanation:
Enzymes are specialized, folded proteins that act as biological catalysts- they speed up the rate of certain chemical reactions in biological systems. Enzymes bind to substrates like compound A to their active site, where they facilitate the modification of molecular strutures, creating new compounds.
Inhibitors like compound C can prevent enzyme-substrate binding activity; the chemical reactions do not occur because the substrates cannot gain access to the active site. Because enzymes show specificity, binding only to certain substrates, other molecules cannot be catalysed by the enzyme.
Here, the amount of Compound A, which is produced via the conversion of R, is increased due to the reaction inhibition- its conversion to B and D is not mediated by X, the inhibited enzyme. While conversion may still occur slowly, without its catalyst, more of the compound is being converted from R to A than A to B and D.
The concentration of A is least likely to decrease.
Which represents the size of a population?
Answer:
the answer is A
Explanation:
Which of the following joins amino acids together?
A)
ionic bonds
B)
van der Waals forces
C)
peptide bonds
D)
metallic bonds
Answer: c ( Peptide Bonds )
How do you think the plant uses the sugars that it has created in photosynthesis?
The sugar produced by photosynthesis can be converted into the sugar glucose. Thousands of glucose molecules can be linked together to form the complex carbohydrate cellulose. Cellulose is a very tough molecule that is used to build the cell wall of plant cells.
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The plant then releases oxygen into the air. Glucose, which is actually a sugar, feeds the plant. There are many uses of glucose in plants. Glucose helps plants grow, form flowers and develop fruit. It also helps plants develop seeds.
Most of the GMO crops grown today were developed to help farmers prevent crop loss. The three most common traits found in GMO crops are: (1) resistance to insect damage: (2) tolerance to herbicidesand (3) resistance to plant viruses. Let's consider #2 tolerance to herbicidesfarmers using herbicide-tolerant crops do not need to till the soilwhich they normally do to get rid of weedsWhich of these is NOT a positive environmental and economic impacts of this GMO trait ?
Answer:
: (2) tolerance to herbicides
Explanation:
Ability to the tolerate herbicides by some variety can lead to abuse of herbicides as over dose of it can be use in a particular region without considering the environmental hazard it can pose. Emission of some chemical compounds and release of some gasses from the herbicides result into land and air pollution especially when used in excess thing can affect the environment.
Residual impact on animals that feeds on such plant, it could lead to it death, after feeding if they move directly to the stream for feeding residual of such chemicals can be deposited in the water bodies leading to water pollution. Tolerance to herbicides is a good inventory but it can also be very detrimental especially when mid managed.
Answer:
the USAtestprep answer is C) No-till planting results in higher crop yields per acre.
Explanation:
.
18. In which type of relationship do both organisms benefit? (2 point)
commensalism
parasitism
mutualism
predation
Answer:
mutualism
Explanation:
Scientists divide mitosis into four parts, or phases: prophase, metaphase, anaphase, and telophase.
True or false?
Answer:
true
Explanation:
[tex]\huge\boxed{True}[/tex]
_____________________________________MITOSISMitosis is a process where a single cell divides once into two identical daughter cells (cell division). The major purpose of mitosis is for growth and to replace worn out cells.
_____________________________________PARTS OF MITOSIS:It has 4 parts, Prophase, Metaphase, Anaphase, Telophase.
Prophase: The chromosomes condense into X-shaped structures that can be easily seen under a microscope.
Metaphase: The chromosomes line up neatly end-to-end along the centre of the cell.
Anaphase: The sister chromatids are then pulled apart by the spindle fibers. Each spindle fiber pulls one chromatid towards the opposite poles.
Telophase: At each pole of the cell a full set of chromosomes gather together. Membrane surrounds each pair forming a new cell
_____________________________________Best Regards,'Borz'I need help plz and thx
What would be the effect on the seasons and the northern and southern hemispheres if Earth were not tilted? Explain your answer.
(its science, not bio I'm in middle school 8th grade I don't know why it says highschool)
Answer:
If the Earth weren't tilted on its axis, there would be no seasons. And humanity would suffer. When a Mars-size object collided with Earth 4.5 billion years ago, it knocked off a chunk that would become the moon. It also tilted Earth sideways a bit, so that our planet now orbits the sun on a slant.
Explanation:
50 mmoles/L ÷ 100 pmoles/ML
Answer:
the answer should be 0.5
Please help me out !!!!!!!!!!
Answer:
A
Explanation:
because each of the nitrogenous bases can only pair up with one of the other bases.
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The diagram below shows a good web.
If a certain organism is a producer, what best explains its position in the food web?
B, because organism b utilizes radiant energy from the sun
A, because organism a has the same role as the corn
B, because organism b had the same role as the raccoon
A, because organism a utilized energy from the beetle
Answer:
A, because organism a has the same role as the corn
Answer:
A because the organism has the same role as the corn
Explanation:
Glycolysis is the first stage of cellular respiration and is an anaerobic process. During glycolysis, glucose is converted to two molecules of pyruvic
acid. How is glycolysis kept functioning during cellular respiration?
A Two high-energy electrons are passed to the carrier NADH, which transports electrons back to glycolysis.
O
B. Two molecules of ATP from the cell are invested at the beginning of the process of glycolysis.
C. Pyruvic acid from glycolysis reacts to form acetyl-CoA, which then combines with a four-carbon compound in the Krebs cycle and re-enters
glycolysis.
D. Hydrogen ions pass back across the mitochondrial membrane through chemiosmosis and re-enter glycolysis.
Answer:
B
Explanation:
Two molecules of ATP from the cell are invested at the beginning of the process of glycolysis.
where is the chromosomes located
Answer:
in the nucleus
Explanation:
Chromosomes are structures located inside the nucleus of animal and plant cells.
Answer: In the nucleus
Explanation:
One of substances that needed to photosynthesis process is ........................
A.
Oxigen
B.
Mineral salt
C.
Glucose
D.
Amylum
PLZ ANSWER
Answer:
C.
Glucose
Explanation:
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a piece of dna that can be radioactively labeled and is complimentary to a known DNA sequence
Answer:
Radiolabeled nucleotides
Explanation:
Radiolabeled nucleotides are commonly used for detection of specific nucleic acid.They are typically incorporated enzymatically into DNA and RNA sequences.
What is the term used to describe the fact that cells are suited to perform a particular function within an organism?