Answer:
B
Explanation:
Many organs such as stomach, teeth, are some things that make up the digestive system.
remember: organelles -> cells -> tissue -> organ -> organ system -> organism.
Answer: B body systems are made up of organs
What is the correct formula for calculating the age of a meteorite if using half-life?
Your answer is Age of Object = n times t 1/2
Answer: C
Explanation: I took the test on Edge2020
Select the correct text in the passage. Which part or parts of the paragraph indicate that the government will enforce a particular environmental policy?
1.Factories are entitled to tax credits if they adhere to pollution control levels stipulated by the concerned administrative body.
2.They are allowed to function for an additional two hours per day during summers.
3.They are not allowed to employ children below the age of 18 as laborers.
4.Factories that emit higher amounts of pollution will be subject to penalties.
Answer:
1.Factories are entitled to tax credits if they adhere to pollution control levels stipulated by the concerned administrative body.
4.Factories that emit higher amounts of pollution will be subject to penalties.
Explanation:
Environmental policy is a term that refers to the guidelines established by governments or companies in order to preserve the environment in relation to the impacts that industrial activities can cause.
The two sentences above represent a specific environmental policy, because both refer to the reduction of pollution caused by companies during their activities. In addition, the phrases above show the punishments and reimbursements that compliance and non-compliance with this policy will bring to the company.
A tropical rainforest includes trees, animals, insects, plants, rain, rivers, rocks, soil, and warm, moist air. Which spheres of Earth are represented in a tropical rainforest? A. biosphere, geosphere, hydrosphere B. cryosphere, hydrosphere, ionosphere C. geosphere, biosphere, cryosphere D. ionosphere, hydrosphere, geosphere
Answer:
The answer is A. Biosphere, Geosphere And Hydrosphere
Explanation:
The reason i choose this as the answer is it says "Tropical rain forest" it would only make since because hydrosphere is the "rain" in rain forest and geosphere would be the life around the rain forest. Biosphere would be the life in the rain forest
The spheres of Earth that are represented in a tropical rainforest are ( A ) ; Biosphere, geosphere , hydrosphere
The tropical rainforest been comprised of trees, animals insects, rivers and rocks, soil and warm moist air. contains ;
Biosphere : The ecosystem comprising of living things ( animals ) and non-living factors that the living things derive energy from Geosphere :This covers the presence of rocks and other underground minerals in an ecosystem as seen in the tropical rainforest. Hydrosphere : since there are rivers and rains the hydrosphere is properly represented in the tropical rainforest as well.Hence we can conclude that the spheres of Earth that are represented in a tropical rainforest are Biosphere, geosphere , hydrosphere.
Learn more ; https://brainly.com/question/10893109
A forest fire destroys an area. A small population of trees and a large population of birds are both affected. Which type of
limiting factor causes this?
Odensity dependent
Odensity independent
O population dependent
population independent
Answer:
density independent
Explanation:
In Ecology, a limiting factor refers to an environmental condition that hinders the growth and distribution of organisms in an ECOSYSTEM. A limiting factor hinders or hampers the productivity of an organism in its habitat.
There are two major types of limiting factors that affect organisms in their ecosystem viz: density dependent and density independent limiting factors. Density independent factor limits the size of a population independently of how dense the ecosystem's population is. This means that density independent factor affects a population irrespective of its size. Example of density independent factor are natural disasters e.g earthquake, hurricane, forest fire as mentioned in the question.
In this question, both populations of trees and birds are affected irrespective of the size of the ecosystem's population.
Select all the offspring phenotypes that could be
produced from a BbEE x bbee cross (shown
above).
black fur, red eyes
black fur, black eyes
white fur, black eyes
white fur, red eyes
RE
LA
HELLER
T
EST
HULLE
ELLE
L
aila
EL
ANSWER : B & C
B: black fur ,black eyes
C:white fur , black eyes
Answer:
Option B and C
BbEe (black fur and black eyes and bbEe (white fur and black eyes)
Explanation:
BbEE x bbee
B - black fur E - black eyes
b - white fur e - red eyes
BbEE x bbee
B b E x b e
Bb bb Ee
BbEe (black fur and black eyes and bbEe (white fur and black eyes)
Answer:
Option B and C
Explanation:
Summarize the flow of carbon, oxygen ,water, nitrogen, and phosphorus through an ecosystem. ( Minimum of three paragraphs please)
Answer:
Water is the basis of all living processes. More than half of the human body is made up of water, while human cells are more than 70 percent water. Thus, most land animals need a supply of fresh water to survive. However, when examining the stores of water on earth, 97.5 percent of it is non-potable salt water. Of the remaining water, 99 percent is locked underground as water or as ice. Thus, less than 1 percent of fresh water is easily accessible from lakes and rivers. Many living things, such as plants, animals, and fungi, are dependent on the small amount of fresh surface water supply, a lack of which can have massive effects on ecosystem dynamics. Humans, of course, have developed technologies to increase water availability, such as digging wells to harvest groundwater, storing rainwater, and using desalination to obtain drinkable water from the ocean. Although this pursuit of drinkable water has been ongoing throughout human history, the supply of fresh water is still a major issue in modern times.
Carbon, the second most abundant element in living organisms, is present in all organic molecules. Its role in the structure of macromolecules is of primary importance to living organisms. Carbon compounds contain especially- high forms of energy, which humans use as fuel. Since the 1800s (the beginning of the Industrial Revolution), the number of countries using massive amounts of fossil fuels increased, which raised the levels of carbon dioxide in the atmosphere. This increase in carbon dioxide has been associated with climate change and other disturbances of the earth’s ecosystems. It is a major environmental concern worldwide.
The carbon cycle is most easily studied as two interconnected sub-cycles: one dealing with rapid carbon exchange among living organisms and the other dealing with the long-term cycling of carbon through geologic processes.
Getting nitrogen into the living world is difficult. Plants and phytoplankton are not equipped to incorporate nitrogen from the atmosphere (which exists as tightly-bonded, triple-covalent N2), even though this molecule comprises approximately 78 percent of the atmosphere. Nitrogen enters the living world via free-living and symbiotic bacteria, which incorporate nitrogen into their macromolecules through nitrogen fixation (conversion of N2). Cyanobacteria live in most aquatic ecosystems where sunlight is present; they play a key role in nitrogen fixation. Cyanobacteria are able to use inorganic sources of nitrogen to “fix” nitrogen. Rhizobium bacteria live symbiotically in the root nodules of legumes (such as peas, beans, and peanuts), providing them with the organic nitrogen they need. Free-living bacteria, such as Azotobacter, are also important nitrogen fixers.
Phosphorus is an essential nutrient for living processes. It is a major component of nucleic acid, both DNA and RNA; of phospholipids, the major component of cell membranes; and, as calcium phosphate, makes up the supportive components of our bones. Phosphorus is often the limiting nutrient (necessary for growth) in aquatic ecosystems.
Phosphorus occurs in nature as the phosphate ion (PO43−). In addition to phosphate runoff as a result of human activity, natural surface runoff occurs when it is leached from phosphate-containing rock by weathering, thus sending phosphates into rivers, lakes, and the ocean. This rock has its origins in the ocean. Phosphate-containing ocean sediments form primarily from the bodies of ocean organisms and from their excretions. However, in remote regions, volcanic ash, aerosols, and mineral dust may also be significant phosphate sources. This sediment then is moved to land over geologic time by the uplifting of areas of the earth’s surface.
Explanation:
If you planted 100
seeds from this test cross,
about how many would
be white? How many would
be red?
Which would most likely lead to reduced bird populations?
O A. Lack of land development
OB. Overplanting an area
O C. Introduction of non-native species
O D. Increased insect populations
Answer:
Introduction of non-native species
Explanation:
That would most likely lead to reduced bird populations is O C. Introduction of non-native species.Non-native predators may also prey on native birds and their eggs, leading to population declines.
What are non-native species?Non-native species, also known as alien, exotic, or introduced species, are organisms that have been introduced into a geographic area where they did not occur naturally, either intentionally or unintentionally, by humans.
C. Introduction of non-native species is most likely to lead to reduced bird populations.
Non-native species may compete with native species for resources such as food, nesting sites, and breeding territories, and may also introduce new diseases and parasites that the native species may not be able to cope with.
Non-native predators may also prey on native birds and their eggs, leading to population declines.
Learn more about Bird population at:
https://brainly.com/question/3783994
#SPJ7
Which event in Earth's history most directly allowed life to exist on land?
Answer:
Earth's temperatures increased, causing widespread evaporation. Earth collided with a large object, forming the moon. Single-celled organisms released oxygen into the air when they photosynthesized.
Answer:
Earth's temperatures increased, causing widespread evaporation. Earth collided with a large object, forming the moon. Single-celled organisms released oxygen into the air when they photosynthesized
Explanation:
Descriptive investigations involve collecting data about a system, but not making what?
Answer:
The correct answer to the following question will be "Tests or experiments".
Explanation:
Descriptive investigations attempt to build assumptions from either the predictions of the phenomena, even as experimentally investigated were mostly designed to allow the research scientist to make comparisons under various situations with both the control behavior.There are indeed enough that-called comparison investigations, that also gather information analyze varying environments but don't even include the regulate location.So that the above would be the appropriate answer.
According to the cell theory, which describes cells?
Answer:
Living organisms are not created spontaneously
Explanation:
brainliest would be appreciated!
The question at the bottom
what would be a good affect of a mutation
Answer:
They lead to new versions of proteins that help organisms adapt to changes in their environment.
....
Explanation:
**WILL GIVE BRAINLIEST** DNA is a double helix with many regions. Which evidence best explains the structure of DNA? (4 points) A. The sequence of genes on a DNA molecule contain the instructions that code for proteins. B. DNA is a region on a protein that codes for genes that carry out cellular functions. C. The sequence of DNA on a gene contains the instructions that code for proteins. D. Genes contain regions that are called DNA and carry out functions essential to the cell.
The sequence of genes on a DNA molecule contains the instructions that code for proteins.
What is DNA sequencing?DNA sequencing refers to the overall laboratory technique for figuring out the precise sequence of nucleotides, or bases, in a DNA molecule. The series of the bases (regularly mentioned by means of the primary letters of their chemical names: A, T, C, and G) encodes the organic statistics that cells use to expand and operate.
What are the steps in DNA sequencing?Sample preparation (DNA extraction)PCR amplification of target sequence.Amplicons purification.Sequencing pre-prep.DNA Sequencing.Data analysis.Learn more about the sequence of DNA here https://brainly.com/question/24042339
#SPJ2
UR HELP IS VERY MUCH NEEDED I WAS VERY CONFUSED ON THIS.
Match the following terms and definitions.
1. the smallest unit of an element
shell
2. the path surrounding the nucleus of an atom in which electrons are normally located
compound
3. the number of protons in the nucleus of the atom
neutron
4. a pure substance where atoms of two or more elements are chemically bonded to one another
diatomic
5. the positively charged center of an atom
atomic number
6. exists in orbit around the nucleus of an atom and carries a negative charge
molecule
7. the smallest unit of a pure substance that consists of two or more atoms held together by a chemical bond
atom
8. the mass of an element
atomic mass
9. a subatomic particle that carries no charge
nucleus
10. containing two atoms
proton
11. a subatomic particle with a positive charge
electron
shell
compound
neutron
diatomic
atomic number
molecule
atom
atomic mass
nucleus
proton
electron
Answer:
1. Atom
2. shell
3. Atomic number
4. compounds
5. Nucleus
6. Electron
7. Molecule
8. Atomic mass
9. Neutron
10. Diatomic
11. Proton
A male giraffe has 31 chromosomes in each of its sex cells. How many would be present in its body cells?
Answer:
62 chromosomes.
Explanation:
Sex cells are formed undergoing meiosis, which means that they contain a haploid number of chromosomes. (Half the number that somatic/body cells contain). 31 is half of 62, which means that the diploid number of chromosomes in the body cells of a giraffe would be 62.
How might biodiversity be important to an ecosystem’s health and stability?
Differentiate between the geology of the continents of the Paleozoic, Mesozoic, and Cenozoic eras.
Answer:
The Paleozoic involved the appearance of fish, and eventually of life moving onto land. The Mesozoic was dominated by dinosaurs. The Cenozoic started with the extinction of the dinosaurs, and included the development of birds and mammals. ... The Mesozoic Era ended with another extinction.
The Paleozoic involved the appearance of fish, and eventually of life moving onto land. The Mesozoic was dominated by dinosaurs. The Cenozoic started with the extinction of the dinosaurs and included the development of birds and mammals. The Mesozoic Era ended with another extinction.
What is the difference between Mesozoic and Cenozoic?
The Mesozoic ended with a major extinction at the close of the Cretaceous Period. All dinosaurs except birds disappeared in this extinction. Another mass extinction occurred near the end of the Triassic Period. The Cenozoic Era was a time in which communities became more modern in appearance.
Learn more about the geology here: brainly.com/question/14995841
#SPJ2
What does the breakdown and absorption of minerals look like step by step and which organs are involved?
Answer:
During the process of absorption, nutrients that come from the food (including carbohydrates, proteins, fats, vitamins, and minerals) pass through channels in the small intestine into the bloodstream. The blood works to distribute these nutrients to the rest of the body.
Explanation:
In an experiment there are two groups. which group is not changed in any way
Answer:
The Control Group
Explanation:
A. One of the late symptoms of MN is excessive edema, or build up of fluid within the interstitial space of tissue. Explain how loss of circulating blood protein (hypoalbuminemia) would cause edema with respect to hydrostatic and colloid osmotic pressure within capillary beds throughout the body.
Answer:
Albumin is a protein that attracts water in the compartment where it is found, that is why when circulating within the blood vessels the blood volume is maintained by this protein, so that the liquid or fluid that makes up the blood volume is retained within the capillaries due to hydrostatic forces and because the albumin protein is hydrophilic.
The albumin is decreasing, that is, in deficit or hypoalbulinemia, less water reaches the blood compartment, therefore the blood pressure or pressure will drop, the blood volume will decrease but not due to loss of it as in hemorrhages, but due to diffusion to other compartments. VASCULAR through the processes of OSMOSIS, in simple words, when this protein descends, water filters from the blood vessels to extravascular compartments, this phenomenon clinically manifests itself as EDEMA.
Explanation:
Hypoalbulinemia also occurs in severe nutritional disorders where ovalbumine is not consumed through the egg, since the person's diet is severely lacking, generating massive edema in the abdominal area or abdominal distension.
The effect that the plasma liquid has in spreading to extravascular spaces is called OSMOSIS, which draws water from the external environment by the oncotic pressure generated by other proteins.
The oncotic pressure is the pressure that is generated when the water diffuses from one compartment to another by attraction of a protein, it happens both with albumin and with other proteins of the organism that are characterized by being hydrophilic or attracting water.
Hypoalbulinemia destroys severe cardiac symptoms due to the high demand that an increase in edema and difficulty of venous return entail along with the fall in blood pressure.
Sarah performs an experiment to determine the effect of nitrogen on plants. She studies the effect of nitrogen on the growth of the root hair, height of the plants, and nodule formation. Which factor is an independent variable?
Answer:
Amount of Nitrogen
Explanation:
it's explained in :
https://brainly.com/question/8532139
describe the benefits and drawbacks of experiments in a laboratory compared with experiments in a natural setting
Answer:
Experimental set up in the lab.are under the control of the scientist,therefore they can manoeuvre the the surrounding conditions to suit the experimental set up for best results. In addition the lab.environment does not involve the complex interactions or reaction between the set up and the lab. environments, compare to the natural environment.
Natural experimental set up gives accurate results from the interaction of the organisms(e.g animals) under investigation in the natural environments,thus the results obtained are natural interaction of the organisms based on the environmental factors the organism are exposed to.However, the number of organisms are usually large,and therefore great effort is needed to determine the actual cause and effects of the factors affecting the organisms under investigations in this natural environments.
Also explain the reasoning for your adaptation ideas ( why would humans adapt that way?)
Answer:
Humans would adopt because some people are ill and have problems that might not let them give birth. Also some thy gave birth to a lot of kids and cant give birth anymore so they adopt.
Explanation:
My explanation is up there
In the Hardy-Weinberg equation shown below, p is the frequency of the
dominant allele, and gis the recessive allele.
p'+ 2pq + 9 = 1
What does p2 represent in the equation?
A. The frequency of the heterozygous dominant genotype
B. The frequency of the homozygous dominant genotype
C. The frequency of the homozygous recessive genotype
D. The frequency of the heterozygous recessive genotype
In the Hardy-Weinberg equation shown below, p is the frequency of the
dominant allele, and is the recessive allele. p² in the equation represents the frequency of the homozygous dominant genotype.
Dominant allele: What is it?Usually, a dominant allele codes for a protein that functions. Because only one copy of the allele is required to produce enough enzyme to fully provide a cell with a specific product, the allele is dominant.
Describe genotype.An organism's phenotype, or observable traits, are derived from its genotype, or the chemical makeup of its DNA. All the nucleic acids in a DNA molecule that code for a specific trait are collectively known as a genotype.
To learn more about Hardy-Weinberg equation visit:
brainly.com/question/29776155
#SPJ1
Answer:
C
Explanation:
Will mark brainliest! I need answer as soon as possible please!
Answer:
The possibilities of what will happen will be the North free magnet and the silk held magnet will repel and the other side of the magnet will be attacted to the north side of the magnet
Explanation:
Explain the relationship between electricity and magnetism
Explanation: Ok so, Electricity and magnetism are two related phenomena produced by the electromagnetic force. And together, they form electromagnetism. A moving electric charge generates a magnetic field. A magnetic field induces electric charge movement, producing an electric current. ( Relationship of them ) Electric current produces a magnetic field. Electric currents and magnets exert force on each other, and this relationship has many uses. A temporary magnet, known as an electromagnet, can be made by passing electric current through a wire that is coiled around an iron core..
( hope this helped )
Why do living cells need water?
What is a force? Name 1 force in real life?
Answer: a force is any interaction that, when unopposed, will change the motion of an object. ... Force can also be described intuitively as a push or a pull. A force has both magnitude and direction, making it a vector quantity
make as brilliant student pls
Answer:
force is a energy
magnetic force
List three facts about glucose.
Answer:
Glucose is a sugar used for our body’s energy source
glucose is used for energy, fructose and glucose have the same formula but different struct-er, its a simple sugar
Explanation: