Answer:
D
Explanation:
skeletal and muscular systems
Question 8: How would you describe the effect of different magnitudes of the same factor on the number of individuals within a population?
What did Darwin mean when he thought possibly organisms started on the main land, then changed over time?
Answer:
He reasoned that plants or animals that arrived on the Galapagos Islands faced environmental factors that were different from those on the mainland. Perhaps, the species gradually changed over many generations and became better adapted to the new environment. Evolution.
Explanation:
What does it mean to die of "natural causes" or to die of "old age"?
Explanation:ya que el cuerpo se dessasta por estar en funsionamieto pormucho tiempoc
which organism produce seeds during reproduction
Explanation:
The algae, ferns and mosses all produce spores while conducting the asexual mode of reproduction. The seeds are produced by flowering plants called as angiosperms. The seeds are the produced by sexual mode of reproduction. These are produced by the fusion of the male gamete that is pollen and female gamete that is ovum in within the flowers of angiosperms. The fusion helps in development of zygote which is the precursor of seeds.
PLEASE HELP!!!!!! Answer both of them please!
How do factors such as landforms affect weather patterns? Why do some air masses start as Maritime Tropical and later become Continental Tropical as they move across the United States?
Answer:
Hi,
For the first question they can make a huge change in temperature , humidity in certain areas or regions. The can also alter the wind and rate of evaporation .
What will happen to a cell that is placed in a hypotonic saline solution?
1) Salt will enter the cell causing it to swell.
2)Water will enter the cell causing it to swell
3)Salt will exit the cell causing it to shrink.
4) Water will exit the cell causing it to shrink.
Answer:
Salt will enter the cell causing it to swell.
Explanation:
Tapwater and pure water are hypotonic. A single animal cell ( like a red blood cell) placed in a hypotonic solution will fill up with water and then burst. ... Plant cells have a cell wall around the outside than stops them from bursting, so a plant cell will swell up in a hypotonic solution, but will not burst.
A hypotonic solution is less concentrated than the cell interior. So, when a cell is placed in a hypotonic saline solution, water will enter the cell causing it to swell. Therefore, the correct option is 2.
--------------------------------------
A hypotonic solution has a lower concentration of solute than the cell. This means that in the cell interior, the solute concentration is higher than in the solution itself.
When a cell is in a hypotonic solution, through osmosis, water moves toward the cell.
Osmosis is the phenomenon that occurs when two dilutions of different concentrations -in this example, the interior of the cell and the solution- are separated by a semipermeable membrane. The membrane allows the pass of water but not solute. Hence, water can move from the most diluted side to the less diluted one.
Water tends to go from the hypotonic solution to the cell interior and keeps doing so until concentrations are equal in the cell interior and exterior.
As water enters the cell, the cell begins to enlarge and becomes bigger-sized. And because cells can not limit the amount of water moving into it, the cell keeps swelling until the membrane can not stretch anymore, and lysis occurs. It bursts.
Under natural conditions, the body regulates the extracellular fluids to avoid cells swelling until they burst.
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⚠️⚠️ I KNOW THE SUBJECT I CLICKED ⚠️⚠️
but I need help don’t ignore!!Check it out at least and see if you can help me :(
Answer:
what the answer choices
Explanation:
Answer:
you gotta give us the anwser choices or else we can't solve this for ya
Explanation:
Mendel's F, generation of pea plants were heterozygous. What does this mean? A: All the offspring plants would have the recessive trait. B: Half of the offsprings would have the dominant trait, while the other half would have the recessive trait. C: The offspring had two identical alleles for the same gene. D: The plants had two different alleles for the same trait.
Answer:
Im pretty sure its D:The plants had two different alleles for the same trait.
Explanation:
If the offspring's is heterozygous it would mean thegenotype would be Pp, which means they would have one dominant allele and one recessive allele.
Which of the following answer choices would be a sex chromosome aneuploidy in a human?
Choose 1 answer:
(Choice A)
A
A male gamete has only one Y-chromosome.
(Choice B)
B
A female gamete contains one X chromosome.
(Choice C)
C
A sperm has one X chromosome.
(Choice D)
D
An egg contains two X chromosomes.
Answer:
c I think it is but it's up you, it could also be D
Answer:
It's D
Explanation:
What is karotyping and how is it used in science / medical field??
Answer:
Karotyping is a chromosomal analysis. It can be used to look for diseases caused by irregularities in the chromosomes, such as Down syndrome.
Explanation:
Karotyping is a chromosomal analysis of the chromosomal constitution of the nucleus of a cell, which is equal to the complete chromosomal makeup of a person. The chromosomes of each species have a certain structure both in size, shape and their own band when they are stained in the laboratory. This allows them to be identified as well as to know if all the genetic information is in the correct order. In addition to numerical abnormalities in chromosomes, structural alterations mean that certain chromosomal regions can be duplicated or even absent. This gain or loss of genetic material has highly varied consequences depending on the genes involved. Another type of structural alterations are translocations and inversions. The karyotype can be studied in search of diseases caused by irregularities in the chromosomes, such as Down syndrome. It also helps to identify problems that a baby conceived through assisted reproduction may have when it is born, by extracting the karyotype that is found in the amniotic fluid of the embryo.
4
Select the correct answer.
Jonathan is starting to grow facial hair, his voice is deepening, and he's showing other signs of puberty. Which stage of development is he likely
in?
OA.
middle childhood
OB. late childhood
Ос.
adolescence
OD. young adult
Answer:
Adolescence
Explanation:
(of a young person) in the process of developing from a child into an adult.
Answer:
adolecents are teenagers and teenagers get puberty
Explanation:
Why do those in forestry need to be able to perform basic operations without the aid of digital technology?
Answer:
because they are in the middle of no where so they need to know how to do it or they will be screwed
Explanation:
brainliest ????
Bee orchids are flowering plants that look like they have a female bee resting on them. Bee
orchids produce a scent that mimics hormones released by female bees. This scent attracts
male bees that are seeking a mate. When a male bee lands on the orchid, pollen becomes
stuck to the hairs on the body of the bee. The male bee then transfers the pollen to other bee
orchids.
W Verhagen/Dreamstime.com
How has this adaptation given the bee orchids a reproductive advantage?
Answer:
The adaptation makes the orchids more desirable to bees, and therefore more likely to be able to reproduce than other plants without the adaptation.
Explanation:
What do trees, seaweed, snails, and giraffes all have in common?
Help asap
Answer:
They are all living organisms
Explanation:
All flora and fauna life on Earth is alive, they all accomplish different tasks throughout their lives, and have different roles throughout an ecosystem's food chain.
Answer:
the largest of all the ecosystems, oceans are very large bodies of water that dominate the Earth's surface. Like ponds and lakes, the ocean regions are separated into separate zones: intertidal, pelagic, abyssal, and benthic. All four zones have a great diversity of species. Some say that the ocean contains the richest diversity of species even though it contains fewer species than there are on land. The intertidal zone is where the ocean meets the land — sometimes it is submerged and at other times exposed, as waves and
Explanation:
They have excellent eyesight, and when one giraffe stares, for example, at a lion a kilometre away, the others look in that direction too. Giraffes live up to 26 years in the wild and slightly longer in captivity.
PLEASE HELP FAST NEED FAST =)
3) Select the reasons why global warming might still occur even if greenhouse-gas emissions drastically decrease.
Answer:
If the emission of greenhouse gases were stopped, global warming would still happen due to the gases that are already in the atmosphere and the constant deforestation.
Explanation:
Greenhouse gases are the biggest creators of global warming. This is because these gases cause holes in the ozone layer, which protects the planet from the sun's rays. These holes cause the sun's rays to reach the earth's surface with greater intensity, promoting global warming.
Trees are able to absorb these gases, decreasing their concentration in the atmosphere and preventing them from degrading the ozone layer. However, the constant deforestation has reduced the number of plants and the remaining amount on the planet cannot cope with the constant emission of these gases. In this case, even if the emissions of greenhouse gases were ended, the amount of these gases in the atmosphere would still be very large. Plants were slow to absorb all these gases, which would not prevent global warming from happening.
Soil erosion can increase when humans remove trees and other vegetation from an area. What
is this process called?
A. decomposition
B. conservation
What does helicase do?
Answer:
Helicases are enzymes that bind and may even remodel nucleic acid or nucleic acid protein complexes. There are DNA and RNA helicases. DNA helicases are essential during DNA replication because they separate double-stranded DNA into single strands allowing each strand to be copied.
Helicases are enzymes that bind and may even remodel nucleic acid or nucleic acid
Give an example of a nonnative species that was introduced into an ecosystem that had a negative impact on the indigenous (native) species and describe what happened.
Answer:
The Gypsy Moth, Nutria, Zebra Mussel, Hydrilla, Sea Lamprey and Kudzu are examples of non-natives that have caused massive economic and ecological losses in new locations because the natural controls of their native ecosystems were not there.
Non-native species can provide services useful to humans, particularly in facilitating many contemporary needs of ... For example, D. polymorpha has both numerous negative and positive effects on natural ecosystems.
Deserts typically have average daytime temperatures of around 100°F, while the average daytime temperature in tropical rain forests is around 85°F. However, the average monthly temperatures in the desert are lower than the average monthly temperatures in a rain forest. Explain the reason for this difference.
Answer: The temperature of the rainforest does not experience a drastic fall as in the case of the desert.
Explanation:
In the desert the average daytime temperature remains 100°F and that of the rainforest is 85°F. But average monthly temperatures are lower in the case of desert as compared to the rainforest although the vegetation cover is higher in rainforest as compared to desert so humidity is also more. During night in desert temperature drops to an average of 25°F whereas in rainforest during night temperature level does not drop much it drops to only 71°F. Therefore, the average monthly temperature on desert is lower than rainforest.
What type of compound is water according to its chemical bonds?
Explanation:
Water as a Compound and Molecule
A compound forms whenever two or more atoms form chemical bonds with each other. The chemical formula for water is H2O, which means each molecule of water consists of one oxygen atom chemically bonded to two hydrogen atoms. Thus, water is a compound. It's also a molecule, which is any chemical species formed by two or more atoms chemically bonded to each other. The terms "molecule" and "compound" mean the same thing and can be used interchangeably.
Sometimes confusion arises because the definitions of molecule and compound haven't always been so clear-cut. In the past, some schools taught that molecules consisted of atoms bonded via covalent chemical bonds, while compounds were formed via ionic bonds. The hydrogen and oxygen atoms in water are covalently bonded, so under these older definitions, water would be a molecule but not a compound. An example of a compound would be table salt, NaCl. However, as scientists came to understand chemical bonding better, the line between ionic and covalent bonds became fuzzier.
Answer: water is a polar molecule
Explanation: water H2O has two covalent bonds between Oxygen and Hydrogen atoms. Both are non-metals and share outer electrons for forming a covalent bond.
Oxygen has much greater electronegativity and it pulls shared electrons with greater force. So bond is polar and because molecule is V-shaped, Oxygen has permanent
Negative partial charge. Also molecule is polar and makes Hydrogen bonds with other water molecules.
where and in what form does carbon used in cellular respiration come from?
Answer:
Comes from carbon in glucose and the oxygen used in cellular respiration
Explanation:
Carbon dioxide is a waste product of cellular respiration
Which statement described asteroid and comets ?
A. Both asteroids and comets are solids
B. Both asteroids and comets are gaseous
C. Asteroids are solid and comets are gaseous
D.Asteroids are gaseous and comets are solid.
What is heredity?
(9 Points)
A. The passing of traits from parent to offspring
B. The passing of chromosomes from parent to offspring
C. Traits produced because of environmental influences
D. Alterations in the nucleotide sequence of genes
Answer:
A
Explanation:
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Answer:
B
Explanation:
Fossil fuels produce large quantities of carbon dioxide when burned. Carbon emissions trap heat in the atmosphere and lead to climate change.
Your cells have a unique MHC (major histocompatibility complex). Directions for producing MHCs come from _________________.
A. the helper T-cells
B. the thymus
C. inherited DNA
D. the bone marrow
The directions for generating MHC comes from the option c. inherited DNA. hence, the option c is correct.
What is MHC?The full form is a major histocompatibility complex. It is the genes group that have the proteins code that should be founded on the cell surface which helped the immune system, that recorded in the foreign substance.
So at the time of directing, it produced MHC that came from inherited DNA.
hence, the option c is correct.
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in mitosis the two resulting cells are
a. different from the starting cell and identical to each other
b. identical to the staring cell and different from each other
c. different from the staring cell and different from each other
d. identical to the starting cell and identical to each other
Answer:
D
Explanation:
mitosis creates exact copies of the starting cell
In mitosis the two resulting cells are identical to the starting cell and identical to each other. Therefore, option (D) is correct.
What is mitosis?In cell biology, the cell cycle phase known as mitosis is when replicated chromosomes are divided into two new nuclei. Mitosis, the process of cell division, creates genetically identical cells with a constant number of chromosomes. Thus, equational division is another name for mitosis.
Making additional diploid cells is the goal of mitosis. Each chromosome is copied, and the copies are then distributed to the various sides of the cell. In this method, each new cell receives a copy of each chromosome when the cell splits in half.
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the phase in the life cycle of a plant that produces spores
Answer:
Plants have two distinct stages in their lifecycle: the gametophyte stage and the sporophyte stage. After reaching maturity, the diploid sporophyte produces spores by meiosis, which in turn divide by mitosis to produce the haploid gametophyte. The new gametophyte produces gametes, and the cycle continues.
Explanation:
Answer:
plants have multicellular haploid and multicellular diploid stages in their life cycle. Gametes develop in the multicellular haploid gametophyte (from the Greek phyton, “plant”). Fertilization gives rise to a multicellular diploid sporophyte, which produces haploid spores via meiosis.
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Write a short story 1 page , about a teenager that finds out overnight that they have a mutation. Describe the details of the mutation , how it is passed down from the generations, and create a protein for your new mutation
Answer:
yes
Explanation:
yes of course
Describe Claire's symptoms. Explain how they were related to metabolism and homeostasis.
The relationship between homeostasis and metabolism is such that homeostasis is required for metabolism to work efficiently and effective metabolism is one way the body maintains homeostasis.:
is mars Held in orbit by the gravitational pull of a planet
Answer:
No
Explanation:
Mars orbits the Sun, a star. The Sun's gravity keeps Mars in orbit, not a planet.
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