Answer:
You must always use two hands.
Explanation:
Using two hands provides more stability when carrying the microscope. So that would lower the chances of damaging the scope. Yw >:)
A class was performing an experiment to discover the pH values of some common household substances. The results of three groups are shown in the table below.
Substance
Group 1 pH
Group 2 pH
Group 3 pH
Lemon juice
2.2
2.2
2.1
Vinegar
2.8
2.8
8.2
Baking soda
8.4
8.5
8.4
Milk of magnesia
10.2
10.3
10.2
Which statement best describes evidence that Group 3’s data are less valid than the data for the other two groups?
a. Group 3’s pH value for lemon juice is lower than the values of the other two groups.
b. Group 3’s pH value for vinegar is much higher than the values of the other two groups.
c. Group 3’s pH value for baking soda does not exactly match the values of the other two groups.
d. Group 3’s pH value for milk of magnesia is different from the value obtained by Group 2.
Answer:
b. Group 3’s pH value for vinegar is much higher than the values of the other two groups.
hope it helps :)
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Answer:
B
Explanation:
What is the best way to test a hypothesis?
Group of answer choices
design and perform an experiment
create a large spreadsheet with all your data on it
do lots of research
ask scientists, then make an educated guess
Designing and performing an experiment is the best way to test a hypothesis.
What is a Hypothesis?This is defined as a proposed explanation about a particular phenomenon or occurrence.
Performing experiments helps to test if the hypothesis if it is valid or not which is why option A was chosen.
Read more about Hypothesis here https://brainly.com/question/606806
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ASAP
Which of the following correctly describes Anaphase?
A. Mitotic spindle attaches to the chromosome's centromeres and lines them up in the middle of the cell.
B. Chromosomes split and move to opposite sides of the cell, the cell elongates
C. Centrioles move to opposite sides of the cell, nuclear envelop dissolves, chromosomes form
D. The Cytoplasm splits, forming two daughter cells
Anaphase is the phase of the mitotic and meiotic cell division. In this phase of the cell division, chromosomes split and move towards the opposite poles. Thus, option B is correct.
What is anaphase?Anaphase is the third stage of cell division, preceded by the prophase and the metaphase. In this stage, the chromosomes aligned before start splitting and move towards the opposite poles of the cells. This causes the cell to elongate and prepares itself to divide in the next step.
Therefore, in anaphase, the aligned chromosomes start splitting.
Learn more about anaphase here:
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Which of the following is true of living things that have prokaryotic cells when compared to living things that have eukaryotic cells?
They have many types of organelles.
They are types of plants.
O They are always larger than eukaryotic organisms.
They are always unicellular.
Answer:
the answer is the last one, they are always unicellular
Explanation:
Soil moisture influences both hydrological and agricultural processes and is part of the water and energy cycles through ________.
transpiration
evapotranspiration
evaporation
condensation
Answer:
Its either evapotranspiration or condensation
Explanation:
Hope it helps✌✌
Answer:
The correct answer is evapotranspiration.
Explanation:
Evapotranspiration is the process of water moving from Earth's surface to the atmosphere. The way water moves from the soil to atmosphere is through this process.
A student places a healthy potted plant and a plastic straw in a closet for two weeks. After two weeks, the student observes that the plant is wilted and brown, while the plastic straw remains the same. The student classifies the plant as living and the plastic straw as nonliving.
What criteria does the student use to classify the plant as living rather than nonliving?
Answer:
Plants need water and sun to create their food source, glucose. When the plant was left in the closet it didn't have access to the sun. One of the requirements of life is that all living things need energy/have a metabolism. Without food the plant eventually died.
What is the name of the structure labeled C in the diagram below?
Answer:
it is a cell membrane (d)
Hope this helps!!!
What types of organisms are
capable of evolving?
A. higher-level organisms
B. all organisms
C. ancient creatures only
Human Population Growth and Overpopulation
Can someone please help me I don't understand what I have to do.
Answer:
all you're trying to do is create a histogram of what has happened in the past and what could happen in the future.
Explanation:
for example and AD you feel the first little bar because it's not more than a billion and its last therefore it would be the zero billion
and then for 1850 you feel to bars because they had 1 billion people so therefore you feel the 0 billion and the 1 billion part
Mention the types of bees
Answer:
ok thus very good percent few Mohammad khan
According to the theory of natural selection, why are some individuals more likely than others to survive and reproduce?
1Points
A
Some individuals pass on to their offspring new characteristics they have acquired during their lifetimes.
B
Some individuals are better adapted to exist in their environment than others are.
C
Some individuals do not pass on to their offspring new characteristics they have acquired during their lifetimes.
D
Some individuals tend to produce fewer offspring than others in the same environment.
On the edge of many deserts, there is a delicate area with abundant vegetation. Sometimes cattle are allowed to graze in these areas. The hooves of the cattle compact the topsoil making it less absorbent. Which environmental concern is MOST likely to happen at the edge of the desert when cattle graze there
Answer:
Loss of plant life.
Explanation:
Which is defined as a cell structure made of DNA that gives all of the master instructions for the cell?
a. centromere
b. chromosome
c. allele
d. gene
Answer:
a chromosome is a cell structure made of DNA,which is found in the nucleus of a cell.
I hope this helps
Consultar los tipos de biotecnología según sus aplicaciones. Dar ejemplos
Answer:
¿Qué aplicaciones tiene la biotecnologia actualmente?
Ejemplos de biotecnología
Antibióticos.
Cultivos de bacterias y levaduras.
Leche descremada, fortificada o larga vida.
Aportes a la lucha contra el cáncer.
Producción de biocombustibles.
Plantas transgénicas.
Plásticos biodegradables.
Vacunas.
Which of the following correctly describes the formula for speed?
Answer:
im sorry there are no options to the question
Answer:
Speed = Distance/ Time taken
which could describe the chemical reaction that is shown
Answer: dehydration of proteins.
Explanation:
When the Earth's rotation naturally brings water away from the
equator and moves cold water close to the surface Westerly
winds begin to strengthen again. What does this signal?
O A. The midpoint of the Coriolis Cycle
O
B. The beginning of El Nino
O c. The end of El Nino
OD. The beginning of an Ice Age
Metallic bonds are responsible for many properties of metals, such as conductivity. Why is this possible? (1 point)
O Metals have low electronegativity, so they are conductive because they pass charges easily.
OTwo metals bonded together are going to be more conductive than a metal bonded with a nonmetal.
O The bonds can shift because valence electrons are held loosely and move freely.
O An attraction between a positive charge and a negative charge is created.
The correct answer is; Metals have low electronegativity, so they are conductive because they pass charges easily.
Metals are found towards the left hand side in the periodic table. They are known for their low electronegativity. Metals are electropositive. This means that they loose charges(electrons) easily.
A metallic bond is comprised of positively charged metallic ions and a sea of electrons.These electrons can move freely.
This sea of electrons are the charges that are responsible for the properties of metals such as high conductivity.
Lean more:https://brainly.com/question/10714037
A junction between neurons through which electrical signals pass through are known as _________.
A. Neurotransmitters
B. Axons
C. Myelin sheaths
D. Synapses
(answer: D)
Answer: Synapses
Explanation: I think this the answer
if i am correct.
what is friction? pls answer my question
Answer:the resistance that one surface or object encounters when moving over another.
Explanation:it is easy!
how do you think earths large temperature gradient affects the speed of its convection currents how would this speed change if earths core was cooler
the membrane of lysosome is made up of ______
Answer:
id k i learned this today doing hw but i forgot
Explanation:
can someone help me asap
Which of the following newborns has the lowest chance of having health problems?
A. Charles- 11 lbs
B. Rosalind- 6 lbs
C. Nikola- 7.5 lbs
D. Marie- 5 lbs
Plz answer this. I miss typed it as advanced placement.
Answer:
option 1
Explanation:
Answer:
a and R
are correct
Explanation:
HELP
In humans, ventilation, digestion, and blood flow are important biological processes. Explain the relationship between the structure of tissues or organs and one of these processes.
Answer:
I am assuming the question is asking how do the processes relate to one another.
Explanation:
Ventilation happens in the lungs, where carbon dioxide and oxygen are exchanged in the alveoli. This is done via cappilaries that surround the alveoli. Cappilaries are small blood vessels, which are collecitelvy part of the blood flow system (circulation) of the body. In reguards to the digestion, there are capillaries in the vili (which are tiny finger-like structures) so that they can pick up the nutrients during digestion. Another way blood flow and digestion are connected is because the stomach is a muscle, thus is moves and requires energy. That energy comes from the oxygen and nutrients that is supplied by the blood. These are just some examples.
Which statement describes the genes within DNA?
Which of the following best describes a hybrid?
A. An offspring produced by parents with different traits.
B. An offspring produced by parents with the same traits.
C. An offspring that displays the same traits as their
grandparents.
D. An offspring that displays different traits from their grandparents.
Answer:
A
Explanation:
An offspring produced by parents with one or more contrasting characters or traits
The best option that describes a hybrid is that it is an offspring produced by parents with different traits.
More specifically, a hybrid is an organism produced from the crossing of 2 organisms that could be of the same species but different traits or of different species entirely.
As such, a hybrid combines the traits of the two parents. Hybrids that result from the crossing of the same species are often fertile while those that result from the crossing of different species are mostly invalid or infertile.
More on hybrids can be found here: https://brainly.com/question/32314
if the alle B represents black fur and
alle b represents white fur what would be the genotype of animal with white fur
Answer:
The genotypes would have to be "bb".
Explanation:
If the dominant allele B is present in a genotype (a genotype is the two letters to represent the trait) then the organism will always be black.
BB= black
Bb= black
bb= white. This is because there is no "B" to dominate the genotype.
Please give me brainiest I am trying to get one !!!!
How does the amount of food in a meal effect the time it takes to digest it?
A light meal can be digested in one to two hours, but heavy meals can take up to six.
A light meal can be digested in three to four hours, but heavy meals can take up to eight.
The body digests food at the same rate no matter the quantity.
A medium meal can be digested in one to two hours, but heavy meals can take up to six.
Answer:
The correct answer is:
Explanation:
Option A is the correct answer
Hope this helps.....
Have a nice day!!!!
Difference between Birds and Bats.
Explanation:
Bat and birds fall into two very distinct Categories: bats are classified as mammals and birds are ave. Bats give birth to live young and produce milk to feed their babies. Birds lay eggs and forage to feed their young.
