Answer: Find the answer in the problem
Explanation: ∠1 and ∠2 are complementary, and m∠2 = 32 . Find m∠1. m∠1 + 32 = 90 Substitute 32 for m∠2. m∠1 = 58 Subtract 32 from each side.
When do
resources
become a cause
of competition?
A. when a resource is mutated
B. when a resource is unlimited
C. when a resource is limited and being used by multiple
species
Answer: C. when a resource is limited and being used by multiple
species
Explanation:
Competing for Resources
Niche- the space, environmental
conditions, and resources
that a species needs in
order to survive and
reproduce
If niches overlap . . .
• Two or more species
rely on the same
limited resources.
• The result is
competition.
Competitive exclusion: one of
the competing species unable to
gain sufficient resources
The cells of the cheek become blue when the stain methylene blue is added which property of the cell membrane does this show
Answer:
So methylene blue when brought to a slide of human cheek cells the nucleus and phone membrane and so forth turns into genuinely visible to facilitate gazing the slide under the compound microscope.
what do we call the outer layer of the nucleus
The outer layer of the nucleus that separates it from the cytoplasm is the nuclear envelope. It is considered as a highly regulated barrier and is described as a double-membrane structure which is the outermost part of the nucleus. It is the passageway of molecules from the nucleus to the cytoplasm. It isolates the DNA from molecules that can cause its damage and affect its different functions.
A spoonful of a white substance is mixed into a beaker of water to form a solution. The substance is either sugar or salt. Which step would be most useful for finding out whether sugar or salt is in the beaker?
To determine whether the substance is sugar or water, get a battery and connect a wire to it to a light bulb. Allow the circuit to be completed by the solution; if the substance is water, the bulb will light up as salt is an electrolyte, but if it is sugar, the bulb will not light up as sugar is not an electrolyte
What are electrolytes?Electrolytes are substances that when in the molten or solution form conduct electricity and are decomposed by the electricity passing through them.
Electrolytes are ionic compounds. Because the ions are not free to move when they are in the solid state, electrolytes do not conduct electricity as solids except they are molten or dissolved in water.
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What contribution did Jonas Salk make to science in the 1950s?
O A.
He invented DDT, the "miracle" pesticide.
• B.
He designed the first US satellite.
O c.
He developed smaller computers.
• D.
He created a vaccine against polio.
La respuesta es (D) the answer is D
Answer: The correct answer is D. He created a vaccine against polio.
Explanation: In 1954, Salk undertook a large-scale national study, enrolling over one million pediatric subjects. The next year, on 12 April 1955, he announced the results: the vaccine was both safe and efficacious. Subsequent data showed that in 1955, there were approximately 29,000 cases of poliomyelitis in the US.
Which tissue covers the heads of the bones
Answer:
The tough, thin outer membrane covering the bones is called the periosteum.
The answer that I put shown in the picture is incorrect help me find the correct answer
The partial pressure of oxygen in blood leaving the tissues is 40 mm Hg. The oxygen is being used continuously in the process of cellular respiration making the oxygen's partial pressure low. The partial pressure of oxygen in the b lood is 100 mm Hg.
Write the exchange reaction for the change that occurs when a potassium fertilizer is added to a humus micelle, which initially has adsorbed calcium ions on enolic groups.
The exchange reaction for the change that occurs when a potassium fertilizer is added to a humus micelle is Cation Exchange Capacity (CEC).
What is humus micelle?What are cations, which are pronounced "cat-eye-ons," first. They are positively charged ions, to put it simply. We are particularly concerned about the soil cations calcium (Ca), magnesium (Mg), potassium (K), and hydrogen (H).
The quantity of clay and/or humus in the soil affects its ability to store and exchange cations. These two negatively charged colloidal materials serve as the soil's main cation storage facility.
Sandy soils with little organic matter (OM) have a low CEC, but heavy clay soils with lots of OM have significantly higher cation-holding capacities.
Therefore, Cation Exchange Capacity is the exchange reaction for the change that happens when a potassium fertilizer is given to a humus micelle (CEC).
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Alex opens the bread drawer and discovers a moldy loaf of bread. Describe what alex can conclude about the mold using the cell theory?
Based on the cell theory, Alex can conclude that a particular kind of fungus called mold grows on both plants and mammals. It resembles a cluster of mushrooms under a microscope.
The roots that the stalks, or sporangiophores, are linked to enlarge as they mature into soft meals like bread. Sporangia, which create spores that launch into the air and drift to a new host to multiply, are found atop the stalks.
What are Fungi?Fungi are a group of spore-producing organisms, such as molds, yeast, mushrooms, and toadstools, that feed on organic matter.The presence of chitin in fungi's cell walls distinguishes them from plants, bacteria, and some protists and separates them into a separate kingdom. Like animals, fungi consume matter that has already been dissolved in their surroundings. Typically, this is done by secreting digestive enzymes into the environment. They do not photosynthesize, fungi. They move through growth, except spores (some of which are flagellated), which can move through the air or water. In ecological systems, fungi play a key role in decomposition.The nuclei of fungal cells are membrane-bound and contain chromosomes with coding and non-coding DNA segments known as exons and introns, respectively. Membrane-bound cytoplasmic organelles found in fungi include mitochondria, membranes containing sterols, and ribosomes of the 80S type.To learn more about Fungi, refer to:
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In tomatoes, red fruit (R) is dominant over yellow fruit (r). A plant that is homozygous for red fruit is crossed with a plant that has yellow fruit. List the possible genotypes and phenotypes for the offspring along with their percentages.
The possible genotypes and phenotypes for the offspring along with their percentages.
Homozygous individuals in diploid organisms (2n) carry two copies of the same gene variation (i.e., the same allele).Heterozygous individuals carry two alleles for the same gene locus.In total dominance, the dominant allele entirely covers the recessive allele.This is further explained below.
What are phenotypes?Generally, A collection of an organism's visible features or traits is referred to as its phenotype in the field of genetics.
The phrase refers to the physical shape and structure of the organism, as well as its morphology, its developmental processes, its biochemical and physiological qualities, its behavior, and consequences of behavior.
In conclusion, When a dominant red fruit (RR) plant is bred with a recessive over yellow fruit (RR), the phenotypic and genotype are Rr. Complete supremacy.
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Muscles work together to produce movement. As one muscle _________ ., the other one _________.A. contracts, relaxesB. pulls, contractsC. pulls, pushesD. relaxes, pushes
Muscles work together to produce movement, as one muscle contracts, the other one relaxes, as stated in the first answer option, and this is possible, because of in our muscles, we have muscle units that allow this process, they are known as myosin and actin, which if activated (actin) with Calcium ions, produce a conformational change in this later fiber that allows myosin to join it with its previous stimulation with ATP.
Question 2 of 10
How are meiosis and mitosis different?
•
A. Mitosis produces haploid cells and meiosis produces diploid cells.
•
B. In mitosis, cells go through telophase, but in meiosis, they do not.
• C. Only meiosis results in a reduction in chromosome number.
• D. Chromatids are formed only during the process of meiosis.
SUBMIT
Answer:
C -> Meiosis reduces the chromosome number
Explanation:
A -> Mitosis makes diploid cells & meiosis makes haploid cells
B -> Both go through telophase
D -> Chromatids are formed during both processes
Which is the process used by the cell to rid itself of unwanted, large substances? passive transport
exocytosis
active transport
please help asap
endocytosis
The exocytosis mechanism is the process used by the cell to rid itself of unwanted, large substances (Option 2).
What is the exocytosis mechanism?The exocytosis mechanism is a cellular process by which the vesicles inside the cell form invaginations of the cell membrane to discharge byproducts outside the cell. This process (exocytosis mechanism) is fundamental to transporting bis substances and water to outside the cell.
Therefore, we can conclude that the exocytosis mechanism is used by cells to eliminate big byproducts which cannot be removed by other transport cell mechanisms such as diffusion.
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13) Write two problem questions about something you can observe right now then write two hypotheses for the problems previously created.
The hypotheses "pollutants can drastically affect global temperature" or "chlorofluorocarbons effectively alter the ozone layer" can be used to investigate two potential questions, including how pollutants might affect global warming and why chlorofluorocarbons harm the ozone layer.
How do hypotheses work?A hypothesis is a proposed explanation for a phenomenon (plural: hypotheses). If a hypothesis cannot be tested by the scientific process, it cannot be referred to as a scientific hypothesis. Observations from the past that cannot be fully explained by the body of knowledge at this time often serve as the foundation for scientific ideas. Although the phrases "hypothesis" and "theory" are sometimes used synonymously, a scientific hypothesis is distinct from a scientific theory. A recognized theory that has gained shaky support and is advanced for further study is called a working hypothesis.
Therefore, we may conclude that by using the scientific method, which comprises conducting experiments to support or deny the hypothesis, hypotheses like, for example, whether pollutants may effect global warming by acting as greenhouse gases, can be solved.
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pleaseeeeee helppp why is it warm in the northern hemisphere during the summer?
Answer:
The sun heats up more and is observed in the Southern Hemisphere, that is, in the Northern Hemisphere, and vice versa. The beginning of each year in astronomy is judged on the apparent motion of the Sun in the celestial sphere.
Explanation:
I hope this helps
Living and nonliving parts of an environment together are referred to as a(n)
Explanation:
The interaction between living things Make up a total ecosystem understand any one part of it requires knowledge of how that part interact with one other
The gradual change in plants communities of a sand dune ecosystem can be classified as
The types of species in a community gradually change and are replaced through a process known as ecological succession.
Ecological successionThe process by which a region's species and habitat mix needs to evolve over time is called ecological succession. These communities gradually replace one another until a "climax community" is reached, such as a mature forest, or until a disturbance, such as a fire, happens. A key idea in ecology seems to be ecological succession.
On the island, ecological succession has produced topsoil that can support ecosystems. As shrub/grassland areas change into forested areas during ecological succession, there are different types of habitat fragmentation.
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Question 1-3
The unique properties of water enable life to exist on Earth. Which of these is a property of pure water?
It dissolves many substances
o its sold form is denser than its liquid form.
o it is slightly more acidic than air.
o It has a low heat absorption capacity:
ALL
It dissolves many substances.
Water is used in the breakdown of molecules in metabolic processes. It will dissolve what cells use for energy and give that energy in the process.
How do mitochondria support cellular functions?
Responses
They produce proteins.
They store the genetic information.
They convert energy from the sun into glucose.
They convert glucose into usable energy.
Answer: They convert glucose into usable energy.
Explanation:
I TOOK THE TEST
The DNA of humans and mice is almost 92% similar. The similarity includes that
Mice have a tail, while humans have a tailbone. The tail bone is
Its mice share an ancestor with humans and are homologous.
The tailbone is a triangular set of bones that form the lowest part of the spine below the sacrum. The general term coccyx is used because it represents the rest of the tail. The tailbone is a triangular set of bones that form the lowest part of the spine, below the sacrum. The general term coccyx is used because it represents the rest of the tail.
The coccyx commonly known as the coccyx lies below the sacrum. Individually, the sacrum and coccyx are composed of smaller bones that fuse together and grow into a solid bone mass by age 30. The sacrum is made up of 5 fused vertebrae S1-S5 and 3-5 smaller bones fused together to form the coccyx. The tailbone helped our ancestors maintain mobility and balance, but as humans learned to walk upright, the tail shrank. The tailbone no longer serves a purpose in humans.
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Which is not an abiotic factor?
A. soil
B. temperature
C. climate
D. trees
Answer:
Option D. should be correct
Explanation:
prove me wrong
This plant cell has been sliced in half and you are looking into one of the halves. How would you describe the structure of the cell?
The fundamental unit of life in species belonging to the kingdom Plantae is the cell. They are eukaryotic cells, which have specialized components called organelles and a real nucleus that performs several duties. They also have a cell wall, which serves as support for the structure.
Structure of plant cell :Plant cells have a cell wall, a large central vacuole, and plastids like chloroplasts. The cell wall is a substantial, rigid covering that encloses and physically supports the cell. Outside the cell membrane is where it is found. Turgor pressure against by the cell wall is maintained by the central vacuole.
After mitosis, plant cells divide in half by building a new cell wall (cell plate) between daughter nuclei. The phragmoplast, a cytoskeletal component, receives golgi-derived vesicles that are then transported there and fused to form the cell plate.
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Which of the following statements best describes a photosystem?
a collection of pigments that is responsible for generating glucose sugar
a collection of high-energy electrons that transfer energy to energy carriers,
generating ATP
an area within the cristae of the mitochondria that is responsible for generating
ATP
a collection of pigments that trap solar energy and focus it on reaction centers,
releasing high-energy electrons
A collection of high-energy electrons that transfer energy to energy carriers generating ATP is the statement which best describes a photosystem.
Photosystem I is an integral membrane protein complex that uses light energy to produce the high energy carriers ATP and NADPH. Light energy excites electrons in the electron transport chain in a photosynthetic unit.
Photosystem I is an integral membrane protein complex that uses light energy to catalyze the transfer of electrons across the thylakoid membrane from plastocyanin to ferredoxin. Ultimately, the electrons that are transferred by Photosystem I are used to produce the moderate-energy hydrogen carrier NADPH.
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Use this sentence: A student creates the following list of animals found in a specific biome for
a report: gila monster, rattlesnake, coyote, and jackrabbit.
Which biome is this student writing this report about?
(1 point)
desert
grassland
tropical rain forest
tundra
As human travel increases, the number of introduced species likely
O decreases.
O increases.
O stays the same.
O is eliminated.
As human travel increases , the number of introduced species likely increases .
What is species and how human travelling can increase the number of introduced species?As humans will start moving more from one place to another there will be more species number.The number of introduced species will increase sharply seeing the increase in the number of human population doing migration and travelling.The breakdown of regional distinctiveness leads to increase in the travelling period of the humans .And most importantly the introduction of new species will increase and will be impacted by the human who have come from elsewhere for either travelling purposes or migration purposes.To know more about species visit:
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In context, the expression “To look, not read” (line 25) affects the pacing of the poem by implying a shift in time that has which effect?
To look outside. they are tough Transfer, connect, up and down. hour. Updated snow fell. The soft "I can't seem to read it now" (line 25) suggests a change in time and affects the pacing of the poem.
Walk at your normal pacing on one course and then come back. It's usually because you're excited or worried. He wandered the room nervously. He walked back and forth waiting for the doctor's call. Thesaurus, synonyms, antonyms, and examples. An example of pacing is that the shifts are slow. An example of pacing is to take one step.
Pacing is defined as repeating the same movement over and over or controlling the development of something. An example of speed is going up and down the hallway while waiting for your wife to get ready to leave. The step is a simple way to measure a linear distance while walking. It can be used outdoors or indoors, in the forest, or on the ground.
The size date of the pacing dates back to Roman times. The Roman tempo, measured from the heel of the foot to the heel of the same foot in the subsequent section, is approximately 58.1 inches. Lecture speed is a term used by instructors to describe how instructors progress their lesson plans on a daily and long-term basis. Tempo is essentially a way of arranging commands in a way that makes the best use of complex time, but not too fast.
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The Stratosphere contains the Ozone Layer which protects the Earth from harmful Ultraviolet (UV) rays from the sun.
Question 5 options:
True
False
The Stratosphere contains the Ozone Layer which protects the Earth from harmful Ultraviolet (UV) rays from the sun is referred to as a true statement.
What is Ozone layer?This is a layer which is located in the stratosphere and contains a large amount of ozone hence its name. It is also responsible for the absorption of the harmful ultraviolet rays from the sun which may cause skin cancer and other medical conditions.
The ozone layer thereby acts as a protector of the earth against these types of rays and is therefore the reason why true was chosen as the correct choice.
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Need help answering the questions
Answer:
i cant see them properly,can u scan?
Explanation:
My question is in the image
Answer:
Probably A
Explanation:
In a school lab, students are measuring the breathing rate of a lizard. They place it in a cold chamber and measure its breathing rate. Then, they place it in a hot chamber and measure its breathing rate again. The lizard is comfortable in both chambers. Will the breathing rate of the lizard change or remain the same in both chambers?
The breathing rate of lizard will decrease in the cold condition, as the metabolic activity of the lizard decreases. The Lizard is the cold-blooded animal (poikilotherms).
Poikilotherms- Poikilothermic creatures are those that have the ability to modify their internal temperature in response to their external environment. Fish, amphibians, & reptiles are a few examples of poikilothermic creatures. Toads may change their body temperature in response to their surroundings and have a wide range of body temperatures.
Metabolic Activity- "A set of chemical events that take place in a living thing in order to sustain life" is referred to as metabolism. The entire number of biochemical processes necessary to keep an organism's cells alive is referred to as its metabolism.
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