Answer:
There is no salinity in estuarine ecosystems due to large supply of fresh water from a river.
Explanation:
An estuary is a semi-closed body of water where fresh water and sea water meet and merge. Even though they are not a habitat to diverse species, they are very valuable breeding grounds and are one of the most productive environments. It is true that plants and algae that grow there have high tolerance for changing environmental conditions like salinity and light penetration because fluctuations happen from time to time because of the influence of the tides. And because of the partially enclosed nature of estuaries, there is provision for a barrier against the ocean during storms.
But despite the supply of fresh water, there is actually salinity in estuarine ecosystems which also varies depending on the concentration of sea water to fresh water.
What is chlorophyll? What is it’s role in photosynthesis?
Answer: chlorophyll is the coloring of the plants
the plants during the winter when photosynthesis gets harder chlorophyll gives neutrients
chlorophyll
Explanation:
The pedigree diagram shows how a recessive trait is inherited in a family. The red circle shows a person with the trait.
Answer:
The correct answer is - A. the child with the trait.
Explanation:
In recessive disorder, the trait is visible only when there are two recessive alleles present. In heterozygous condition, the trait does not express as it is shown in the pedigree.
Answer:
it's C or if you have different options for this question then it's 'Both parents are heterozygous for the trait.
Using the human species as an example, explain what is meant by a variation of traits.
Explanation:
a variation of traits could be a variation of personality traits? everybody is different? what I do know Is that variation can be inherited or environmental which means that you get it from your ancestors through DNA or you get it from the environment around you and your choices eg a tattoo
what roles do photosynthesis and cellular respiration play in the formation of carbon-based compounds
Answer:
Cellular respiration and photosynthesis are important parts of the carbon cycle. The carbon cycle is the pathways through which carbon is recycled in the biosphere. While cellular respiration releases carbon dioxide into the environment, photosynthesis pulls carbon dioxide out of the atmosphere.
Explanation:big brain
if fossils are in many different places, but only lived for a short period of time what are they considered
Answer:
index fossils
Explanation:
Answer: An ideal index fossil
Explanation: An ideal index fossil lived during a short period of time, was geographically and environmentally widespread, and is easy to identify. Some of the most useful index fossils are hard-shelled organisms that were once part of the marine plankton.
I hope this helps =3
In cells, driving an unfavorable process by coupling it to a favorable one requires the availability of compounds that can undergo reactions with large negative free energy changes. Such substances can be thought of as energy transducers in the cell. Explain the reason that many of these energy-transducing compounds are organic phosphates such as ATP.
Explanation:
In the final stage of respiration, ATP is formed through a series of electron transfer reactions within the cytoplasmic membrane that drive the oxidative phosphorylation of ADP to ATP. Bacteria use various flavins, cytochrome, and non-heme iron components as well as multiple cytochrome oxidases for this process.
What Causes The Cycle Of Seasons On Earth?
The Tilt Of Earths Axis?
The Shape Of Earth's Orbit?
The Direction Of Earth's Orbit?
The Distance Between Earth And The Sun?
Your answer should be:
A. The tilt of the axisEarth's tilted axis causes the seasons. Throughout the year, different parts of Earth receive the Sun's most direct rays. So, when the North Pole tilts toward the Sun, it's summer in the Northern Hemisphere
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The Tilt of Earths axis causes the cycle of seasons on earth and is denoted as option A.
What is Season?
This is defined as a period of the year that is distinguished by special climate conditions.
This is due to the tilt of the earth axis which ensures different varying exposure of the earth to the sun thereby creating different seasons.
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A cell in G1 of interphase has 12 chromosomes. How many chromosomes and DNA molecules will be found per cell when this original cell progresses to the G2?
Answer:
In G2 phase, there are 12 chromosomes and 24 DNA molecule.
Explanation:
There are two DNA molecules per chromosome. In G2 phase, there are 12 chromosomes and 24 DNA molecule.
In Prophase 1, Chromosome - 12, DNA - 24
In Metaphase 1 , Chromosome - 12, DNA - 24cell.
In Anaphase I chromosomes -12, DNA -24
In Prophase II, Chromosomes -6, DNA -12
In Anaphase II of meiosis - Chromosomes -12, DNA -12
3. The half-life of carbon-14
is about 5600 years. A
fossil with 1/4 the normal
proportion of C4 is
probably
years
old.
A. 2,800
B. 11,200
C. 22,400
From which molecules do organisms get energy to perform daily activities
Answer:
Carbohydrates
Explanation:
The result of photosynthesis is the production of sugar molecules knowns as. carbohydrates. carbohydrates are. energy rich molecules which organisms use to carry out daily activities. as organisms consume food and use energy from carbohydrates, the energy travels from. one organism to another.
If mitosis happens in our gonad cells that produce egg or sperm. How will it impact the progeny's chromosome number? Emphasize also the point why is meiosis so very important.
Who understand this
Explanation:
If gametes were produced instead by mitosis each gamete would be diploid not haploid. During fertilization of diploid gametes, the zygote would become 4n=92. With each new generation the number of chromosomes would double.
Can two species share the same niche? Why or why not?
Answer:
No
Explanation:
Because they'd be fighting for the exact same resources
Answer:
The competitive exclusion principle tells us that two species can't have exactly the same niche in a habitat and stably coexist. That's because species with identical niches also have identical needs, which means they would compete for precisely the same resources.
Explanation:
When does oxygen uptake in the alveoli increase? Select all that apply. Carbon dioxide in the body decreases. Oxygen in the body decreases. Oxygen in the body increases. Carbon dioxide in the body increases.
Answer:
oxygen decreases and co2 increases
Explanation: to try to do more gas exchange
This gene segment codes for a peptide in humans.
GCTGTGTGAGGCAGA
What is the expected mRNA sequence when the gene segment is
transcribed in transgenic mice?
Answer:CGACACACUCCGUCU
Explanation:
The expected mRNA sequence when the gene segment is transcribed in transgenic mice is GCUGUGUGAGGGCAGA
What is mRNA (messenger RNA)?Responsible for transporting the information transcribed from the DNA chain. Information is transported through codons, which are sequences of three nucleotides, for example, AUG – Adenine, Uracil and Guanine.
With this information, we can conclude that the mRNA sequence expected when the gene segment is transcribed in transgenic mice is GCUGUGUGAGGGCAGA
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Diabetes is a disease characterized by the inability to break down sugars. Often a person with diabetes has a defective DNA sequence that messes up the code for making insulin. Suppose a person has a mutation in their DNA, and the first triplet for the gene encoding insulin is CCC (instead of CCA). Determine what amino acid the new DNA triplet codes
Answer:
The new CCC codon codes for proline, while the original CCA codon also encodes for proline
Explanation:
A synonymous substitution is a mutation produced by the substitution of one nucleotide for another in an exonic gene segment which doesn't modify the original amino acid in the protein sequence. Moreover, a silent mutation is any alteration in the nucleotide sequence that does not produce an observable effect on the organism's phenotype. The example above describes a synonymous substitution because the new codon (CCC) also codes for the same proline amino acid as the original non-mutated codon, thereby the resulting protein sequence remains unchanged. Consequently, in this case, mutations associated with diabetes are located at other gene regions. The genetic code is degenerate because different codons can code for the same amino acid.
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Answer:
when it rains the soil will observe water that water is observed by roots of plants. the plants will take sun light to prepare it's food if water is so much it releases in form of water vapour the near the plants will cool down due to this moist air
Please help :(
Imagine yourself as a naturalist. In your travels, you observe the toad and frog
shown here. Write two questions that might arise from these observations.
Answer:
1. What is the relationship between body shape and the habitat where they are most commonly found?
2. What is the difference between toads having a thicker skin than frogs?
Explanation:
Toads and frogs are amphibians that belong to the same family, live in lakes, rivers and wetlands and have some similar characteristics. Among their main differences are:
The skin of toads is rougher, drier and rougher. While frog skin is moist and smooth. Frogs live in humid areas, although they can go out to dry land for food. Whereas toads can survive longer on the ground away from moisture, as they have greater water control in the body. Frogs are characterized by long limbs that favor long hopping and swimming. On the other hand, toads have shorter legs. Toads tend to be more rounded, muscular and stocky. Frogs tend to be more slender.Most toads are poisonous. In contrast in frogs, not all species are poisonous.
Given these observations, two questions that may arise could be:
1. What is the relationship between body shape and the habitat where they are most commonly found? This is that frogs have longer legs which helps them to swim and that is why they are more commonly found in water. While toads have shorter legs that even allow them to burrow into the ground, they can survive longer on land.
2. What is the difference between toads having a thicker skin than frogs? Toads have thicker and more impermeable skin than frogs, which allows them to live in drier places. Also, the blood of the toad is of higher osmotic concentration than water.
Answer: what is the difference between the body’s and the habitat they are in?
Explanation:both have similar habitats and look the same
After chemical weathering, what happens to the chemical makeup of the weathered rock?
-The rock stays the same
-The rock gets larger.
-The rock changes form.
-The rock disappears.
Answer:
rock changes its form
Explanation:
Hope was helpful
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After chemical weathering, the rock changes form. Therefore, option C is correct.
What are weathering and its types?The breakdown or dissolution of rocks and minerals on the surface of the Earth is known as weathering. Once a rock has been disintegrated, the minerals and rock fragments are carried away by a process known as erosion. Weathering and erosion can be caused by water, acids, salt, plants, animals, and temperature changes.
Because it contributes to the formation of numerous different types of landforms on the surface of the earth, weathering is a crucial activity. For instance, weathering is the process that gives rise to mountains, canyons, and caves.
There are three types of weathering and that is physical, chemical, and biological weathering. After chemical weathering, the rock changes form. Therefore, option C is correct.
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Describe the contributions made by various scientists to the discovery of the structure of DNA that we have discussed in this class
Im not in your class so i dont knoww. If your more explanatory i will help
Answer:
Since you didn't list the scientists, what you can do is look up contributions made by "scientist name"
good luck, i hope this helps :)
what is the major component of Bones and the proteins that build muscles
Answer:
CarbonExplanation:
Carbon is an essential building block in the bodies of living things. For example, carbon is a major component of bones and the proteins that build muscles. And most organisms use oxygen for their life processes._____________________follow meHelp&explain
Don’t use for points or will be reported and I’ll take the points back
Answer:
They have lungs.
Explanation:
Reptiles that are currently living have lungs means they breathe through their lungs not like fishes which breathe through gills. They have dry skin and have scales on their skin. Snakes, lizards, turtles are the examples of reptiles. Some reptiles such as sea turtles and penguins are also lives in water, but they come onto land to lay their eggs and comes to the surface breathing.
What is a dichotomous key
Answer:
A dichotomous key is a tool that allows the user to determine the identity of items in the natural world, such as trees, wildflowers, mammals, reptiles, rocks, and fish. Keys consist of a series of choices that lead the user to the correct name of a given item. "Dichotomous" means "divided into two parts"
Explanation:
PLEASE HURRY!!!!
When you have corresponding DNA sequences that comes from separate parents; one
from the mother and the other coming from the father... these are called _______________
That is why we have a pair for each chromosome.
Which of the following organisms would contain prokaryotic cells?
A. protists
B.animals
C.plants
D.bacteria
D
can I get the brain name thingy
It is a statement of judgment of a person about something in the world.
Answer:
heres your answer :)
Explanation:
Declarative Statements are the kind of statements which expresses someone's belief, view, or judgment about something/someone.
please pick the right option
What are the possible results of breeding a dark brown mouse with a light brown mouse?
Do you think that the same principles of wildlife management apply to marine
ecosystems? Why or why not?|
Answer: Yes, because marine wildlife interacts with other marine wildlife and plant systems underwater. We could learn to manage these environments just like we do on land.
Explanation:
what are the difference of meteor and meteorides ?
Answer:
When meteoroids enter Earth's atmosphere (or that of another planet, like Mars) at high speed and burn up, the fireballs or “shooting stars” are called meteors. When a meteoroid survives a trip through the atmosphere and hits the ground, it's called a meteorite.
Sally is a 41 year old female with a history of unsuccessful weight loss attempts. In the past, Sally has tried "almost every diet known to man" and now wants to lose "at least fifty pounds" and "stop fighting with myself". Sally lives alone, and works as an accountant. Her hobbies include reading, spending time with her cat, and shopping. She describes her life as "pretty isolated" and rates her happiness at a 4 out of 10. She explains that when trying to change her behavior, she usually "falls off the bandwagon after a few days", and describes herself as "stuck". She has no history of injuries or preclusions to exercise and has recently had a clean physical exam, with the exception of needing to lose weight.
Describe what approach you would take with Sally to help her change her behavior?
Answer:
the approach has been described below
Explanation:
I will have to use motivation as a way of enhancing change in the life of Sally. From this question, she seems to be a lonely lady, with low self-esteem and no physical activity. The first thing I would do is to help to get her out of monotony by motivating her.
Once motivated, I would help plan her diet and add combinations of physical activities. These activities may include walking and running. With time an expert would take over her physical training.
She has to make time for other activities such as yoga or community work. The purpose for this is so she can meet and connect with other people, this would give her a sense of belonging. And would help boost her self image.
In conclusion, Sally needs a combination of physical and emotional therapy in order to change her lifestyle.