Answer:
important scientific tool used to identify different organisms, based the organism's observable traits
Explanation:
consist of a series of statements with two choices in each step that will lead users to the correct identification
For example, in tree identification, a dichotomous key might ask whether the tree has leaves or needles. The key then directs the user down one list of questions if the tree has leaves, and a different question list if it has needles.
Answer:
Example objects to identify: apple tree, water-lily, fir tree, dandelion, astroturf, seaweed. Dichotomous keys may be simple or complex depending on what is being identified. I hope this helps
Explanation:
Hemophiliacs have blood that does not coagulate well, and they often die at a young age. The disease allele is recessive and X-linked. The normal allele (N) is completely dominant over the disease allele (n). If a hemophiliac woman and a non- hemophiliac (normal) man have children, what percentage of their sons would be expected to have the disease? What percentage of their daughters would be expected to have the disease?
Answer: 25 or 50 %?
Explanation
15. Which statement best summarizes describes cell theory?
All living things are made up of cells, and each cell comes from another living cell.
Not all living things are made from cells, and some animal cells come from plants.
Living things can form from cells or other materials.
All living things are made up of cells that can come from non-living matter.
Answer:
Cell theory- all living things are made of one or more cells,that cells are the basic unit of life,and that cells come only from other cells
Explanation:
It would be the first one because a cell theory is that all living things are made of one or more cells
(EASY BRAINLIEST) I am Making a study guide about Plants in the plains and will give thanks and brainliest to the best study guide someone provides you do not need to make it I just need one!
Answer:
Plant Guidance by Ecoregions
Ecoregion 9 – High Plains
Extending from the Panhandle south to the Pecos River, the High Plains have been described as a sea of waving grasslands. The 20 million acres of this region fills most of the “handle portion” of the state. It is a relatively high and level plateau of sandy to heavy, dark calcareous clay soils over an impervious layer of caliche. The winters here are the coldest in Texas, with the average annual temperature being only 59 degrees. Rainfall ranges from 21 inches in the east to about 12 inches in the west. Sun and wind rob the soil of even the meager water it receives from these rainfalls. Today, most of the High Plains is irrigated by the vast Ogallala formation.
Classified as mixed plain and short-grass prairie, vegetation in the High Plains varies – highly dependent on location. Hardlands or mixed lands, sandy lands or caliche lakes, all give rise to a very different plant community. Honey mesquite and yucca have invaded some areas that were characteristically free of trees and brush. Sand sage and shinnery oak have spread through most of the sandy lands.
Playa lakes play an essential role in this region, and they are the prime waterfowl wintering grounds for the North American Central Flyway.
The regions other name, “Llano Estacado” or “Staked Plains” is believed to refer to the first European settlers who drove stakes into the ground to help guide them across this featureless region. These early pioneers found a vast carpet of short grasses that were home to enormous herds of buffalo and pronghorn antelope. This was also the home of the Comanches.
The original character of the High Plains has been forever changed by the plow, however unique areas still remain including some scattered sand dunes cloaked with Harvard shin-oak, sandsage, and little bluestem. Tallgrass meadows can still be found waving in the breezes along the Canadian and Red Rivers. While few rivers actually cross the High Plains, these meager water sources along the Canadian and Red Rivers one sustained luxuriant growths of tall willows and cottonwoods. Russian olive and tamarisk, two introduced species from the Old World, now replace these native trees along the rivers, altering the natural habitat of kingbirds and phoebes. Grasses still provide cover and nesting habitats for myriads of other birds, and belts of trees planted in the 1930s provide shelter to an amazing diversity of wildlife. While the Gray Wolf and elk no longer occur on the High Plains, mountain lions, coyote, Red-tailed Hawk and swift fox now crown the food chain. While greatly reduced, scattered populations of Lesser Prairie-chicken still boom to announce the coming of spring across the region while flocks of Lark Buntings and Horned Larks ply the skies over this restless sea of grass.
Plants for the High Plains
Trees
Plains cottonwood
Honey mesquite
Bur oak
Western soapberry
Net-leaf hackberry
Silver-leaf mountain mahogany
Mohr oak
Lance-leaf sumac
Texas redbud
Prairie crabapple
Shrubs
Oklahoma plum
Common choke-cherry
Sand sage
Fourwing saltbush
Silver agarita
Feather dalea
Winter fat
Harvard shin-oak
Little-leaf sumac
Conifers
Rocky mountain juniper
Eastern red cedar
Colorado pinyon pine
Succulents
Teddy-bear cholla
Narrow-leaf yucca
Plains yucca
Vines
Old man’s beard
Snapdragon vine
Vine milkweed
Canyon grape
Grasses
Western wheatgrass
Cane bluestem
Sideoats grama
Blue grama
Buffalograss
Ear muhly
New Mexico little bluestem
Wildflowers
Winecup
Purple coneflower
Englemann daisy
Blackfoot daisy
Missouri evening primrose
Pink plains penstemon
Mealy sage
Copper-mallow
Indian blanket
Texas bluebonnet
Tahoka daisy
Prairie verbena
A comet has an orbit size of 3.5 AU & its orbit time is 6.54 years. T² = 42.875 years. What does R³ equal?
Answer:
42.875 AU is the answer.
Explanation:
Kepler's third law allows us to find the answer for the orbital radius of the comet's orbit and the relationship of the magnitudes are:
Orbital radio is a = 3.49 AU The ratio of the orbit to the cube to the period squared gives the Kepler constant.
Kepler studied the motion of bodies in the solar system creating mathematical relationships that describe their motion, Kepler's third law which is a direct application of Newton's second law to the orbit of the planets around the sun is
T² = K a³
Where T is the period of the orbit, a is the semi-major axis of the ellipse and K is a constant called Kepler's constant given by
K = [tex]\frac{4 \pi ^2 }{GM_s}[/tex] = 3 10⁻¹⁹ s²/m³
Where G is the constant of gravitation universes, M_s the mass of the Sun
In this case they indicate the size of the orbit tabulated a = 3.5 AU and the period T = 6.54 years, let's reduce the two magnitudes to the international system of measurements (SI)
T = 6.54 years [tex]( \frac{365 d}{1yr} ) ( \frac{24h}{1 d} ) ( \frac{3600s}{1 h} )[/tex] = 2.062 10⁸ s
Let's calculate the radius of the orbit
a = [tex]\sqrt[3]{\frac{ T^2 }{K} }[/tex]
a = [tex]\sqrt[3]{\frac{(2.062 \ 10^8 )^2 }{3 \ 10^{-19}} }[/tex]
a = [tex]\sqrt[3]{0.1417 \ 10^{36}}[/tex]
a = 0.5214 10¹² m
Let's reduce to astronomical units, which corresponds to the distance from the Sun to the earth
a = 0.5214 10¹² m ( [tex]\frac{1AU}{1.496 \ 10^{11}}[/tex] )
a = 3.49 AU
Let's observe that it is practically equal to the tabulated value.
The ratio of the orbit to the cube to the period squared gives the Kepler constant, which is practically invariant for all bodies in the solar system.
In conclusion using Kepler's third law we can find the radius of the comet's orbit and the relationship of the magnitudes are:
Orbital radio is a = 3.49 AU The ratio of the orbit to the cube to the period squared gives the Kepler constant
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Is the tamarisk beetle an invasive species? Read the following passage, and use the evidence provided to determine whether or not they would be classified as invasive.
“Tamarisk trees were introduced to the U.S. as an ornamental shrub due to their pretty pink color and ability to provide erosion control. However, they were soon recognized as invasives due to their hoarding of light, water, and nutrients, drying out riparian areas. They also were outcompeting the plants that the Southwestern willow flycatcher nested in. As a result, the tamarisk beetle was introduced because they eat the tamarisk plant. They were extremely effective, except there was one caveat- the flycatcher birds had begun to use the tamarisk to nest in. So, protocols had to be adjusted to allow some tamarisk to remain; no beetles were released within 200 miles of any flycatcher nest, so the bird populations could continue to grow while the beetles continued to remove invasive tamarisk trees in other areas.”
(1 point)
Yes, the tamarisk beetle is invasive, because it is destroying Southwestern willow flycatcher habitat.
Yes, the tamarisk beetle is invasive, as it is not native to the United States.
No, the tamarisk beetle is not invasive, because it is only destroying the intended invasive plants.
No, the tamarisk beetle is not invasive, as they were purposefully introduced
pls help will make you brainiest
Answer:
It's a
Explanation:
can i have brainliest
2. What new realizations do you have about solving problems involving sequence? How would you connect this to real life? How would you use this in making decisions?
Answer:
To solve real life problems involving sequences,we use the word 'SEE PLAAN DO AND LOOK BACK, when we have problems, we need to see what is the problem about and what is the cause. Then we plan how we would solve that problem. Next is to do what we have planned. The last thing is to look back to see if we have made errors in the solution and it will familiarize us with method of sulotion and this may be useful for solving a future problem.
Explanation:
hope its help:))
what are the stages of mitosis
Answer: What are the 4 stages of mitosis and what happens in each?
1) Prophase: chromatin into chromosomes, the nuclear envelope break down, chromosomes attach to spindle fibres by their centromeres 2) Metaphase: chromosomes line up along the metaphase plate (centre of the cell) 3) Anaphase: sister chromatids are pulled to opposite poles of the cell 4) Telophase: nuclear envelope
Explanation: hope this helped you ! <33
Answer & Explanation:
There are four main stages of mitosis. Those are prophase, metaphase, anaphase, and telophase.
The stages are also shown below on the diagram. Hope this helps!
Living things are characterized by several properties, Write these function of life
Answer:
All living organisms share several key characteristics or functions: order, sensitivity or response to the environment, reproduction, growth and development, regulation, homeostasis, and energy processing.
Please tell me the definitions
Answer: Simulator- A device that enables the operator to reproduce or represent under test conditions phenomena likely to occur in actual performance. Orbit- The curved path of a celestial object or spacecraft around a star, planet, or moon, especially a periodic elliptical revolution. Critical speed- the rotational speed at which acting dynamic forces cause a machine component to vibrate at its natural frequency and can even result in resonant vibrations throughout the entire machine and pump set. Celestial body- An astronomical object or celestial object is a naturally occurring physical entity, association, or structure that exists in the observable universe.
Explanation:
Pom
Identify the independent variable in the following question: How does the size of a bicycle tire affect the distance it will
travel when it is pedaled in a given number of times.
a.size of a bicycle tire
b. the distance the bike will travel
c.None of the above
Which of the following is not typically represented by pyramids in ecology? 30 points
- mass, - energy flow, - populations in ecology, - predator and prey relationships
The biomass pyramid shows the decline or steady decline in biomass from base to peak of each trophic level. Pyramids employed in ecological systems don't use fresh weight.
What is the role of biomass in ecological pyramids?The biomass that is produced by organisms at every trophic level can be measured using a biomass pyramid.
The bottom level of this pyramid is occupied by the producer, which are typically plants. Primary consumers come after the producers.
The total living biomass or organic matter present at various trophic levels in an ecosystem is represented by a biomass pyramid.
The mass of living things present at each trophic level in a given sample size is used to determine biomass. Calories per unit area or dry weight in grams are two ways to see it.
Therefore, biomass is not typically represented by pyramids in ecology.
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How ozone layer depletion cause global warming ?
Answer:
It also absorbs infrared radiation emitted by the Earth's surface, effectively trapping heat in the troposphere.
Explanation:
___ and ___ are the two stages of cell division in most cells.
Mitosis
Cytokinesis
Homeostasis
Osmosis
Diffusion
Answer:
mitosis and homeostasis
If an organism is moved to a different habitat, it would also need a new niche?
What role does the capsid play in viral reproduction? (1 point)
The capsid copies the viral DNA.
The capsid ends the lysogenic cycle.
The capsid copies the host cell’s DNA
The capsid attaches to the cell membrane.
Explanation:
[tex]\sf{ }[/tex]
The capsid copies the host cell’s DNA is the role of the capsid play in viral reproduction.
The role capsid play in viral reproduction is that the capsid copies the host cell’s DNA. Thus, option C is correct.
What is reproduction?
Reproduction has been defined as the process carried out by the living organisms and during the process of reproduction the living organisms produces their own young ones and feed them. Reproduction has been the supreme quality of living things. The role capsid play in viral reproduction is that the capsid copies the host cell’s DNA.
There are two types of reproduction and these are sexual and asexual reproduction. The process of reproduction in which two parents are involved has been said to be sexual mode of reproduction and the process of reproduction in which only single parent has involved in known as asexual mode of reproduction. The example of asexual reproduction are budding, fragmentation, spore formation, and binary fission.
Therefore, The role capsid play in viral reproduction is that the capsid copies the host cell’s DNA. Thus, option C is correct.
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Some cells ignore cell Cycle checkpoint and continue to grow and divide uncontrollably despite cellular or genetic damage. What disease may directly result from such behavior?
Answer:
Cancer is a collective name for many different diseases caused by uncontrolled cell division.
Explanation:
Cancer is the kind of disease that will result from uncontrollable cell division despite cellular or genetic damage.
What is the relation between cell cycle and cancer ?
The relationship between the cell cycle and cancer is intuitive on the surface: the cell cycle regulates cell proliferation, and cancer is a condition caused by uncontrolled cell proliferation. Fundamentally, all tumors allow for an excessive number of cells to exist.
Cells have a variety of methods that they can use to control cell division, fix DNA damage, and stop the growth of cancer. As a result, it is believed that the development of cancer occurs through a number of steps and requires the failure of several different mechanisms before a critical mass of malignant cells is reached.
The majority of malignancies develop specifically when cells have a variety of mutations (changes in DNA) that cause them to cycle more rapidly, evade internal and external restrictions on division, and prevent planned cell death.
Thus, uncontrollable cell growth indices to cancer.
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take a subject of origins or a question you may have and write 500 words.
Answer:
no sé inglés
Explanation:
poético XD :v
What is the Coriolis Effect?
Question 21 options:
a.the circulation route of trade winds moving from east to west
b.the way that tropical winds circulate to form hurricanes and large storms
c.the rapid movement of winds found in the upper atmosphere
d.he curved path of global winds due to the rotation of Earth
Net primary productivity (NPP) is:
O the rate at which primary producers capture solar energy through photosynthesis
O the rate at which producers use chemical energy through respiration.
O the rate of photosynthesis minus the rate of respiration by autotrophs.
O the rate of photosynthesis plus the rate of respiration by heterotrophs. the rate of economic growth in the fossil fuel industry.
Answer: b
Explanation:
Which of the following is not directly involved in the process of protein production?
endoplasmic reticulum
mitochondria
Golgi bodies
ribosomes
It is either Mitochandria or Golgi Bodies sorry
[tex]▪▪▪▪▪▪▪▪▪▪▪▪▪ {\huge\mathfrak{Answer}}▪▪▪▪▪▪▪▪▪▪▪▪▪▪[/tex]
Mitochondria is not directly involved in the process of protein production.
define osmotic pressure
Answer:
According to the Oxford Dictionary, Osmotic Pressure is:
"the pressure that would have to be applied to a pure solvent to prevent it from passing into a given solution by osmosis, often used to express the concentration of the solution."
, Hope this helps :)
Have a great day!!
Which group of bacteria is most likely responsible for stew fish spoilage in Anastacia's refrigerator cooler?
Select one:
O a. thermophiles
O b. mesophiles
O c. psychrophiles
O d. psychrotrophs
Will give Brainest and 100 points for the correct answer
A student conducted an experiment by placing a plant cell in a salt solution and the following observation is observed. What is the best explanation of the net movement of
molecules?
Original
Cell
No
Change
O Water is moving out of the cell at a faster rate than it is moving in
Water is moving into the cell at a faster rate than it is moving out
Water is moving at equal rates both
and out of the cell.
O Water is neither moving in nor moving out of the cell.
Answer: Hello!
B. Water is moving into the cell at a faster rate then it's moving out.
Explanation: I am SO sorry if it is wrong.
Feel Free to ask me anything if questions. Mark me brainest please. Hope I helped! Hope you make an 100%
-Anna♥
The best explanation for the net movement of molecules is that Water is moving at equal rates both and out of the cell. So, the correct option is (C).
What are Different types of Solutions?
There are 3 types of solution. These are:
1. Hypertonic Solution
Hypertonic solutions are those in which the solute concentration is higher than in any other solution. For example, the internal solution of a cell in it.
If these cells are placed in a hypertonic solution, the movement of water outside the cell is greater than inside the cell.
2. Hypotonic Solution
Hypotonic solutions are those in which the concentration of the solute is less than that of the other solution.
If a cell is placed in a hypotonic solution, the movement of water inside the cell is greater than the movement outside the cell.
3. Isotonic Solution
Isotonic solutions are a type of solution whose strength is equal to that of another solution.
If a cell is placed in an isotonic solution, there is an equal rate of movement of water into and out of the cell.
For the above information, isotonic solution is used in the experiment because the movement of water in and out of the cell is the same.
Thus, the best explanation for the net movement of molecules is that Water is moving at equal rates both and out of the cell. So, the correct option is (C).
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1. According to the cell theory, all cells come from previously existing
2. Depending on whether they have a
unicellular organisms are classified as either eukaryotes or
prokaryotes.
3.Cells that need to make a lot of protein are expected to have a large number of
4. Molecules tend to move from an area where they are more concentrated to an area where they are less concentrated. This process is
called
5. Large molecules, such as glucose, that cannot cross the membrane can still move across the membrane through a type of passive
transport called
6. Some materials can move across the cell membrane against a concentration gradient by
7. A cell's relatively constant internal physical and chemical conditions are called
1. cells
2. nucleus
3. ribosomes
4. diffusion
5. facilitated diffusion
6. active transport
7. homeostasis
Question - Tectonic plates are blocks of?
a. magma.
b. magnetic rock.
c. asthenosphere.
d. lithosphere.
Answer:
The correct answer is D lithosphere.
The lithosphere includes the crust and the uppermost solid part of the mantle.
Select the option below that does not belong to the endomembrane system
O a. lysosomes
O b. the rough endoplasmic reticulum
O c. mitochondria
O d. the Golgi apparatus
What is the role of each
cell part and
biomolecule during
DNA replication?
DNA contains the instructions needed for an organism to develop, survive and reproduce. To carry out these functions, DNA sequences must be converted into messages that can be used to produce proteins, which are the complex molecules that do most of the work in our bodies.
How many neutrons are in a hypothetical atom with an atomic number of 11 and an atomic mass of
28?
Number of neutrons is 63 - 29 = 34. 199. An atom has a mass number of 14 and 6 electrons. How many protons and neutrons does it have?
Plants convert light energy into chemical energy (glucose). Plants also
cellular respiration because they need ATP.
True
False
True, plants undergo cellular respiration because they need ATP.
Plants are known as primary producers in the ecosystem because they are able to directly harness the energy from the sun and convert it into complex energy molecules. This process requires ATP.
On the other hand, plants also undergo cellular respiration which is the process by which ATP is produced because the plant also needs ATP to perform the functions of cells.
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How do you dry specimen that would be view under scanning electron microscope
Answer:
are coated with a thin layer of metal (usually gold or gold-palladium). The metal coating makes samples conductive