Answer:
The correct answer is:
Cell (D.)
Explanation:
The cell is the basic structural, functional and biological unit of a living organism that is the smallest unit of life. It is said to be the building block of life. Being the smallest unit of life, a cell is a collection of organelles and biomolecules that can function independently and still possess the qualities of life. These structures are enclosed in a cytoplasm, within a membrane, and these biomolecules include Nucleic acids (DNA, RNA), proteins etc.
A farmer uses triazine herbicide to control pigweed in his field. For the first few years, the triazine works well and almost all the pigweed dies; but after several years, the farmer sees more and more pigweed. Which of these statements explains why the pigweed re-appeared?A) Natural selection caused the pigweed to mutate, creating a new triazine-resistant species. B) The herbicide company lost its triazine formula and started selling poor-quality triazine. C) Triazine-resistant pigweed has less efficient photosynthesis metabolism. D) Only triazine-resistant weeds survived and reproduced, so each year more pigweed was triazine-resistant.
Answer:
A) Natural selection caused the pigweed to mutate, creating a new triazine-resistant species.
Explanation:
Due to constant use of triazine, the weed will build resistance to it over time unlocking the herbicides codes and making it ineffective.
Natural selection will play out allowing this weeds to bring about a sudden change in their genome that will become resistance, this resistance breed is what will then be produced over time because mutation is heritable and the herbicide then becomes ineffective and the weed continues to multiply and increase in volume.
Which of the following is not a defining characteristic of water
Low specific heat capacity
Polarity
Cohesion
Surface tension
Answer:
low specific heat capacity
Explanation:
Purple flowers are dominant over the white flowers. The parent generation includes two heterozygous parents. What are the possible phenotypes of these parent offspring
Answer:
Purple and white-flowered individuals.
Explanation:
First, let P represents the allele for purple flower trait and p for white flower trait. PP and Pp would be purple and pp would be white flower individuals.
The parents are two heterozygous individuals, Pp.
Pp x Pp
offspring: PP Pp Pp pp
PP and Pp = purple
pp = white.
Hence, the possible phenotypes of offspring from two heterozygous parents are purple and white-flowered individuals.
Which role of protists,fungi, and bacteria has the most positive effect on maintaining the plant population in an ecosystem?
O if they are found in the gut of animals, they can assist in digestion
They are a major food source for animals
They decompose dead materials, returning nutrients to the soil
They produce about 75 percent of the oxygen on Earth
Answer:
They decompose dead materials, returning nutrients to soil
Explanation:
You could say life on Earth depends on the protists because they supply us with oxygen, are critical organisms in food chains, and recycle important nutrients for other life forms to use.
True or false A hypotheses has been tested many times by different independent researchers but a theory has not
Answer:
true
Explanation:
yea a theory has not tested hypothesis
Answer:
Testing a hypothesis can lead to one of two things: the hypothesis is confirmed or the hypothesis is rejected, meaning it either has to be changed or a new hypothesis has to be created. This must happen if the experiments repeatedly and clearly show that their hypothesis is wrong. It doesn’t matter how elegant or supported a theory is—if it can be disproven once, it can’t be considered a law of nature. Experimentation is the supreme rule in the scientific method, and if an experiment shows that the hypothesis isn’t true, it trumps all previous experiments that supported it. These experiments sometimes directly test the theory, while other times they test the theory indirectly via logic and math. The scientific method requires that all theories have to be testable in some way—those that can’t are not considered scientific theories.
Explanation:
so in short True , can u mark me brainlyest
Which best describes an idea that has scientific consensus?
All scientists must support the idea.
Few scientists think the idea is valid.
Most scientists disagree with the idea.
Most, but not necessarily all, scientists agree with an idea.
Answer:
the last option is the best
Explanation:
no idea that will ever pass without disagrement from other scientists who generate and defend the opposite ideas
All scientists must support the idea best describes an idea that has scientific consensus.
Scientific consensus is the collective judgment, position, and opinion of the community of scientists in a particular field of study. Consensus generally implies agreement of the supermajority, though not necessarily unanimity.Why is consensus important for scientist?It tells things that have already learned, and it let us know when things have stopped being debated in the sciences.Consensus is achieved through scholarly communication at conference, the publication process.To know more about scientific consensus here
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what is anyhrosphere (in your own words)?
Answer:
something that you invent?
Explanation:
Answer:
The anthroposphere encompasses
Explanation:
the total human presence throughout the Earth system including our culture, technology, built environment, and associated activities. ... In physical terms, the anthroposphere is comprised of the cities, villages, energy and transportation networks, farms, mines, and ports.
Soo-Jung used the subtraction property of equality to solve an equation for y. Which equation could be the one that Soo-Jung solved? 4 y = 12 StartFraction y Over 4 EndFraction = 12 2 (4 y) = 12 y + 4 = 12
Explanation:
Option 1.
4y=12
Dividing 4 both sides
y=3
Division property should be used.
Option 2.
[tex]\dfrac{y}{4}=12[/tex]
Cross multiplying each other,
y=12(4)
y=48
Option 3.
2(4y)=12
Opening bracktet in LHS
8y=12
Dividing both sides by 8 i.e.
[tex]y=\dfrac{12}{8}\\\\y=\dfrac{3}{2}[/tex]
Division property is used.
Option 4.
y+4=12
Subtracting both sides by 4 i.e.
Y+4-4=12-4
y=8
Subtraction property is used.
It means that in option (4) Soo-Jung used the subtraction property of equality to solve an equation for y.
Answer:
D y + 4 = 12
Explanation:
I just took the quiz and got 100
Lactase is an enzyme that breaks down a sugar found in dairy products known as lactose. Some people are lactose intolerant, and this can be due to not having enough lactase production.People who are lactose intolerant may not feel well after eating foods containing lactose. Identify the enzyme
Answer:
Lactose intolerance is the inability to digest a sugar called lactose that is found in milk and dairy products. Normally when a person eats something containing lactose, an enzyme in the small intestine called lactase breaks it down into simpler sugar forms called glucose and galactose.
Explanation:
What type of rock (granitic or basaltic) would be more likely to contain the mineral quartz Why?
Answer:
I think granitic rock would contain more mineral quartz.
Explanation:
Because the magma cools slowly, crystals of different minerals have time to grow. Molecules in the lava do not have time to arrange themselves to form large crystals. Extrusive rocks have crystals that are too small to see without magnification. A common example of an extrusive igneous rock is basalt.
protons, neutrons, and electrons. The protons and the neutrons make up the center of the atom called the nucleus and the electrons fly around above the nucleus in a small cloud. how can i say this different
Answer:
the nucleus in a small cloud
Explanation:
What elements make up a carbohydrate?
Explanation:
Hydrogen, Carbon, Oxygen,
Maria’s father started a fire in the fireplace. He crumpled some paper, lit a match, and soon the logs in the fireplace were burning. In the case, the stored chemical energy in the logs was changed into
Answer:
The options are
A) electrical energy.
B) mechanical motion.
C) heat and light energy.
D) electrical and heat energy.
The answer is C) heat and light energy.
Explanation:
Chemical energy in the wood is lit up by fire and a burning process begins to occur. Burning involves a substance being consumed by fire and fire aids in the conversion of some forms of energy to mainly light energy as a result of the burning flames and also to heat energy as a result of the high temperature in the form of heat which the fire brings into play.
This validates the stored chemical energy in the logs being changed into light and heat energy.
Jellyfish, mushrooms, oak trees, and bacteria contain cells. Which component of cell theory does this best illustrate? All living things are made of cells. Most organisms are made of cells. All cells come from other cells. Plants are made of cells.
Answer:
All living organisms are made of cells.
Explanation:
Hi!
No matter what is it, if it is a plant, an animal, a bacteria, anything! If it is alive, biotic, living, breathing, it is made up of cells. NO MATTER What! Rocks and sun are not alive so that means they are biotic. Which means they are not made of cells.
I really hope this helps!
Answer:
A all living things are made of cells!
Explanation:
Would we have the Same countries If Pangea existed? And would we look the same?explain please
Tyler is admitted to the hospital after an accident. In the hospital, Tyler overhears the doctor telling his mom that although he has a fracture in the axial skeleton, he’s lucky because the bone doesn’t protect any vital organ that’s essential for survival. Which bone has Tyler fractured?
Answer:
The correct answer is mandible
Mandible is a lower jaw bone that does not protect any organ in our body.
It is located in the facial region and is the strongest and largest bone of the mouth.
Mandible contains a region for the lower teeth and forms a temporomandibular joint.
The structure of mandible is comprised of two regions:
- The horizontal body (anteriorly)
- Two vertical rami (posteriorly)
Explanation:
which term references the approach sociologists use as a road map for how to view the world? A. Determinant B. Mindset C. Theoretical framework D. Physical grant
Answer: Theoretrical framework
Explanation: got it right on apex
Two species of pine tree are very similar to each other. The pine trees are very different from a species of palm tree. Which statement best describes the characteristics of these trees?
Answer:
This question lacks options; the options are:
A). All of the tree species have the same number of characteristics in common.
B). The two species of pine trees have fewer characteristics in common than the pine trees and the palm trees.
C). The two species of pine trees have more characteristics in common than the pine trees and the palm trees.
D). None of the tree species have any characteristics in common
The correct answer is C.
Explanation:
Living organisms are of numerous and different species. In the order of classification of living organisms, species is the most exclusive and also represents the smallest. However, an organism can have different species on the basis of shared or common characteristics.
Two species are said to be similar if they share or have more characteristics in common. Likewise, different species have less characteristics in common. Hence, in the case of two pine tree species, which are very similar to each other but very different from a species of palm tree. This implies that the two pine tree species have more characteristics in common than they do with the palm tree species.
Answer:
c the two species of pine trees have more characteristics in common than the pine trees and the palm trees.
Explanation:
I I got it right on edge 2021
What can likely happen to uncommon alleles in small, isolated populations as a result of genetic drift?
Explanation:
they are likely to be lost.
What is bile juice,is it physical or chemical
Explanation:
Hey there!!!
It is a chemical.
Biles are the yellowish substances which are produced by liver to help in digestion process.
Hope it helps...
Answer:
Bile is a digestive juice that is secreted by the liver and stored in the gallbladder. And it is chemical
In a coal-burning power plant, the coal is an example of a system _____.
A. Product
B. Throughout
C. Output
D. Model
E. Input
In a coal-burning power plant, the coal is an example of an Input System. So, the correct option is (E).
What is Coal burning power plant?Coal-burning power plants are defined as those plants that produce electricity by burning coal in boilers to generate steam. The steam produced under extreme pressure flows into a turbine, which spins a generator to create electricity, then it cools, condenses back into water and returns to the boiler to start the process.
About 50% of coal is used as the primary fuel for power generation. The main function of a coal fired thermal power plant is to convert the energy available in the coal into electricity where as power plants work by using multiple stages to convert the stored energy coal for usable electricity which is an example of input system.
Thus, In a coal-burning power plant, the coal is an example of an Input System. So, the correct option is (E).
Learn more about Electricity, here:
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how fungi get there food?
Answer:
hmmmmmmmmmmmnnmmmmmmmmmmm mmmmm
what is the most precise measurement of the volume of this liquid
Answer:
pipets
Explanation:
volumetric flask and granulated cylinders
The study of planets, the sun, comets, etc
Answer: the answer is astronomer
Explanation:
Answer:
Astronomy
Explanation:
Astronomy:
The study of planets, the sun, comets, universe and the whole celestial galaxies.
Hope this helps ;) ❤❤❤
Based on the second law of thermodynamics, how much biomass of phytoplankton would be needed to produce 1 kilogram (kg) of large fish in this food web?
Answer:
1000kg
Explanation:
The 10% rule states that 10% of the energy stored as biomass at one trophic level, ends up as biomass at the next trophic level. So, in a 4 levels food web, we need 1000 kg of the first level -phytoplankton- to produce 1 kg of the last level -large fishes-.
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From the energy that reaches the earth's surface, only 0.1 or 1% is absorbed by autotroph organisms or producers. This small percentage of this energy flows through all organisms in the ecosystem -from autotrophs to heterotrophs- until it dissipates in the environment.
Only 10% of energy is tranferred from one level to the next one. This assessment is called The 10% rule. It states that only about 10% of the energy stored as biomass at one trophic level, ends up as biomass at the next trophic level.
The progressive reduction of energy determines the number of trophic levels (4 or 5).
Let us analyze the given example.
Phytoplankton ⇒ Zooplankton ⇒ Small Fishes ⇒ Large Fishes
According to the 10% rule, to support 1 kg of large fish, 10 kg of the anterior level -small fish- is needed.
To get the biomass of each level needed to support 1 kg of large fish, we need to multiply each level biomass by 10. This is:
To get 1 kg of large fish: 1 kg x 10 = 10Kg of small fish To get 10 Kg of small fish: 10 kg x 10 = 100Kg of zooplanktonTo get 100 kg of zooplankton: 100Kg x 10 = 1000 kg of phytoplankton.So, in this example, to produce 1 Kg of large fishes, we need 10 kg of small fishes, 100 kg of zooplankton, and 1000Kg of phytoplankton.
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In Zambia, which lions are likely to have migrated from a different population?
Why the bass and crayfish benefit from an increased level of phosphate, initially, but then die off
Answer:
Increased levels of phosphate are beneficial to phytoplankton and aquatic plants. In the short-run, this means increased micronutrients for herbivorous and omnivorous fish.
The phosphate, however, reacts with the water to reduce the oxygen levels obtainable in the water. Without oxygen, the fishes die off.
It is not unusual to find that with increased phosphate in water, healthy fishes begin to die off without any other plausible explanation.
The solution is to clean the water or treat it with solutions that impact positively whilst reducing the phosphate levels.
Cheers!
you were asked to make a speech on how you would contribute to reduction in resource depletion which idea would you promote?
a.) water conservation at school
b.) uses of phones in the classroom to learn about resources
c.) improving eating habits
d.) involvement in sports
Answer:
Its (A) water conservation at school
Explanation:
Just took quiz on ED 2020
Chromosomes that have their centromere near or at the center with two equal length arms are called ______.
Answer:
Metacentric centromere
How can Scientific beliefs be used incorrectly to fool people into thinking they are Scientifically founded
Answer:
Is really common that all the studies and scientific advances that we find today, born as an idea or hypothesis (that in a lot of cases is not the same as the end result).
So for example, suppose that a group of scientists is trying to find a cure to a certain disease, and they think that they may have found it, but there are not enough tests (for example they may try it in rats, but not in humans yet)
As the group starts to find results, they may share them (especially if they are positive), and here is when a given communicator/periodic takes this information and makes a claim like "Group of scientist finally finds the cure for...."
So in this case the media is using the fact that a group of scientists "thinks" something as a valid claim to affirm something.
There is also the case where a scientist says something (That has logic and scientific value only in context) and then the media uses some part of the scientist's statement out of context in order to affirm a given idea.