what are the scientist doing incorrectly? what could they do to make their work in the lab safer? why is it important to follow these procedures? part b
Answers
Answer:
What the scientist is doing incorrectly is hitting a rock with a hammer without protective equipment and on the same table where containers with chemical or biological substances are found.
Explanation:
Biosafety is an important aspect of laboratory work. Conducting studies in rocks, trying to fracture them with the use of a hammer is an incorrect practice carried out by a scientist when he does not use protective equipment and has containers with substances on the same work table.
what could he do to make their work in the lab safer?Wear gloves, protective apron and protective eyewear.Break the rock on a work table where there are no containers that could break by accident, spilling their contents.why is it important to follow these procedures?It is important to follow these procedures because injuries to hands, body or eyes can be avoided by fracturing the rock. In addition, it prevents the breakage of containers with chemical or biological products, which could contaminate the work area or cause damage to the scientist.
Related Questions
Which best describes the first step in genetic engineering?
Fragments of DNA that have desired genes are isolated to form recombinant DNA for use in a host.
All the DNA from a desired organism is isolated to form recombinant DNA for use in a host.
Answers
Answer:
Fragments of DNA that have desired genes are isolated to form recombinant DNA for use in a host.
Explanation:
The first step in the genetics therapy it is to isolate the gene of interest. You can see this procedement in the image below.
The Cas9 of the image is the CRISPR associated with the protein 9. CRISPR is a bacteria's enzym which can edited portions of ADN.
What happens if the moon has too much of an acceleration from the gravitational interaction with the sun
Answers
I WILL GIVE A BRAINIEST ANSWER !!
Which phrase describes a metamorphic rock?
- formed from a volcano
-was once buried underground
-formed from evaporating water
-contains minerals
Answers
Snakes sheds their outer most layer of skin regularly which characteristic of life is this action and example of
Answers
Answer:
Letting go of regrets and past decision.
Explanation:
Answer:
Growth
Explanation:
100%
True or False; Diversity of life has decreased over Earth's history.
Answers
Answer:
true
Explanation:
Just think about extinction and how many species we have lost throughout time.
What is the connection between cancer and cell replication (explained in 1 paragraph)?
Answers
1. How is the atomic number of an element calculated?
Answers
Answer:By adding together the number of protons and neutrons and multiplying by 1 amu, you can calculate the mass of the atom.
Explanation:
Another word for skull is ______.
A. vertebrae
B. cartilage
C. jawbone
D. cranium
Answers
Answer:
D . Cranium
Explanation:
Cranium is another word for skull.
Answer:
D. Cranium
Explanation:
What is the difference between infection and inflammation?
Answers
Answer:
Inflammation is always accompanied by infection.
Infection is not accompanied by inflammation.
Explanation:
Infection refers to the invasion of a virus pathogen within the body that can cause a disease. On the other hand, inflammation is the protective response of the body against the infection.
Inflammation is not always accompanied by infection.
Infection is usually accompanied by inflammation.
Elements are _____.
only found on earth
subatomic particles with a positive charge
substances that are made up of only one type of atom
a chemical substance composed of atoms of two or more different types of atoms
Answers
Answer:
C
Explanation:
An element is a material that consists of a single type of atom. Each atom type contains the same number of protons. Chemical bonds link elements together to form more complex molecules called compounds. A compound consists of two or more types of elements held together by covalent or ionic bonds.
A girl rides her scooter 5m North, 7m East, 5m South, and then 7m west. What is her displacement?
Answers
Answer:
She is in the same place as she started. But she did move 28 units in total.
Which of theses nutrients can be found in all organisms?
Nitrogen
Calcium
Carbon
Phonsphorous
Answers
Answer:
Carbon
Explanation:
Carbon is found in all living organisms
In homologous recombination in E. coli, the protein that moves along a double-stranded DNA, unwinding the strands ahead of it and degrading them, is:
Answers
Answer:
RecBCD enzyme
Explanation:
RecBCD is an enzyme of the E. coli bacterium that initiates recombinational repair from potentially lethal double strand breaks in DNA which may result from ionizing radiation, replication errors, endonuclease, oxidative damage, and a host of other factors. The RecBCD enzyme is both a helicase that unwinds, or separates the strands of DNA, and a nuclease that makes single-stranded nicks in DNA.
For each of the following statements, indicate whether the statement describes the P generation, F1 generation, or F2 generation.
The plants in the
were allowed to self-pollinate.
The plants in the
are true breeding.
After a cross, there are three times as many tall plants as there are short plants in the
.
Answers
Answer:
The plants that were allowed to self pollinate were the First filial generation, filial, Latin for family. Or just the F1 generation plants.
The plants that are true breeding are Parental generation or for shorthand, the P generation plants.
The plants where there were three times as many tall plants as short plants are in the second filial generation, or the F2 generation.
This question is based on the Mendel’s Experiment.
Sir Gregor Johann Mendel.
Mendel experimented on pea plants and gave the laws for genetics which are a very important aspect of hereditary. Because of his experiment the terms recessive and dominant came into light and how the genes are passed from generations were also studied.
The statements can be completed as:
Plants that were allowed to self pollinate were F1 or the first filial generation.The true-breeding plants are P (parental) generation.The plants having the phenotypic ratio of 3:1 for tallness and shortness are in F2(second filial) generation.The steps can be explained as:
The cross which is the first step between the given alleles of a trait in a cross is called parental (P) generation.The progenies produced as a result of a cross between the parental traits is called the first filial (F1) generation.When the traits from the F1 is interbred then a second filial generation (F2) is produced.To learn more about parental and filial generations follow the link:
https://brainly.com/question/1242912
What is the twisted ladder shape of the DNA called?
3-D model
nucleotides
double helix
single strand
It’s hard will give brainlest
Answers
Answer:
i think it's the double helix
Explanation:
Answer: Double helix.
Explanation: It's called a double helix because it looks like a double helix.
According to the signal detection theory, the detection of stimuli involves decision and sensory processes.
T or F
Answers
Answer:
True!
Explanation:
This work is soo easy for me , It is True my teacher just checked all my answers were correct :) I hope you get a good grade.
Answer:
True is correct just took the topic review
Explanation:
Describe how sucrase catalyses the breakdown of sucrose
Answers
How does a virus keep evolving? Explain.
Answers
Answer:it keeps evolving by people hangingout with others or near people that have the virus.
Explanation:
Which of the following statements is true for all cells?
Answers
Answer:
They are all living
Explanation:
No cell is not alive unless it's dead
What is the difference between food chains and food webs? Food webs show the flow of energy from producers to consumers, and food chains show the flow of energy from consumers to producers. Food chains show a single path of energy in an ecosystem, and food webs show overlapping pathways of energy in that ecosystem. About ten percent of the energy is passed on to the next trophic level in food webs, but in food chains, about ninety percent is passed on to the next trophic level. Heat is lost when energy is passed on to the next trophic level in food chains, but in food webs, heat is not lost when energy is passed on to the next trophic level.
Answers
Answer:
Food chains show a single path of energy in an ecosystem, and food webs show overlapping pathways of energy in that ecosystem.
Explanation:
Unlike food chains, food webs show more detailed information about the different animals in an ecosystem and show multiple energy transfers to different animals from the same sources.
By looking at these examples, you will notice a dramatic difference in detail:
Food chains show a single path of energy in an ecosystem, and food webs show overlapping pathways of energy in that ecosystem.
What is food chain?Food chain shows the relationship between organisms by the food they eat.
What is food web?A food web is the natural interconnection of food chains and a graphical representation of what-eats-what in an ecological community.
Difference between food chain and food webFood webs show interconnection of food chains about the different animals in an ecosystem and different energy transfer processes.
Thus, food chains show a single path of energy in an ecosystem, and food webs show overlapping pathways of energy in that ecosystem.
Learn more about food chains and food web here: https://brainly.com/question/2179
Does water always follow the same path in the water cycle? Why or why not?
Answers
Answer:
Some of it evaporates, returning to the atmosphere, some seeps into the ground as soil moisture or groundwater, and some runs off into river or stream
whats the difference between ex vivo and in vivo gene therapy
Answers
Answer:
Ex vivo gene therapy - this is carried out by removing the intended cell from the patient's body before administration of the gene therapy, after which the cell is returned.
In vivo gene therapy - this is carried out directly on the cell while its still on the patient's body.
Explanation:
Ex vivo, Latin for "out of the living" is a process that takes place outside an organism. Scientifically, ex vivo involves experiments that are conducted outside of a living body; the tissues or organs are taken out of the body, experimented on and returned.
In vivo which is Latin for "within the living" on the other hand is a process that take place outside an organism. Unlike ex vivo, it involves experiments that are conducted with or within a living body.
Gene therapy refers to a process that is carried out to alter the genetic make up of an individual with the intent of treating a disease.
In ex vivo gene therapy, the intended cells are removed from the patient's body and the gene therapy is applied to the cells before they are put back in the patient's body. But with in vivo gene therapy, the gene therapy is applied directly on the intended cells while its on the patient's body.
Changes in the number of chromosomes or the structure of a chromosome are called _____ mutations.
Answers
Answer:
Chromosomal mutations
What is the main function of your kidneys? *
a. secrete excess water as sweat
b. protect against pathogens
c. convert waste products into urine
d. facilitate gas exchange
Answers
Answer:
i think convert waste products into urine
Answer:
b
Explanation:
covert waste product into urine
Which of the following is an example of a ground in a building?
An extra electrical cord.
A pipe to the ground
A plastic rod
A metal rod in the air
Answers
Answer: its
A pipe to the ground
Explanation:
Just took the same quiz
Answer:
A pipe to the ground
Explanation:
write your answers in a different color that is easy to read.
1. What is the molecule used to transfer energy to living things? What is its long name?
2. What is significant about the three phosphates tied together in ATP that makes it ideal for
performing its job?
3. How is ADP different from ATP?
4.
What are the three phases of cellular respiration?
5. What is glycolysis? Include the starting molecule and end product of glycolysis in your answer.
6.
How many ATP molecules are required to start glycolysis?
Answers
2. Having 3 phosphates is ideal because the energy required to break off 1 phosphate group from ATP to form ADP issues considerable energy, while also leaving the ADP molecule enough to attract a phosphate group and become ATP again
3. ADP is different from ATP because there is one less phosphate in ADP. ADP stands for Adenosine Diphosphate meaning it has 2 phosphate groups (di), and ATP stands for Adenosine Triphosphate meaning it has 3 phosphate groups (tri)
4. Phases of cellular respiration are (chronologically); glycolysis, private oxidation, Krebs cycle, electron transport chain
5. Glycolysis is the first stage of cellular respiration where the glucose molecule is changed in a series of 10 steps to form 2 pyruvate molecules
6. 2 molecules of ATP must be used to start glycolysis
what type of pathogen causes malaria?
Answers
Answer:
Malaria is caused by the Plasmodium parasite. The parasite can be spread to humans through the bites of infected mosquitoes. Plasmodium falciparum is mainly found in Africa.
Hope this helped :)
Answer:
protists
Explanation:
Organisms that cause disease to humans are known as "pathogens." There are many different types of pathogens such as: bacteria, fungi, virus, parasitic worms and protists.
Malaria is caused by the following parasites: Plasmodium ovale, Plasmodium malariae, Plasmodium falcifarum and Plasmodium vivax. These parasites are also known as "protists pathogens." They are transmitted by the female Anopheles mosquito and are being transferred to humans through mosquito bites. The parasites then thrives in the red blood cells of the infected individual.
If a medical professional is talking to you about the back of your head, where your eyesight is controlled, which region is being referred to?
the facial region
the cranial region
the appendicular region
the occipital region
Answers
“The occipital lobe is one of the four major lobes of the cerebral cortex. The occipital lobe is the visual processing center of the mammalian brain containing most of the anatomical region of the visual cortex.”
A plant cuticle is made of waxes and covers plant leaves. The wax is a type of lipid that has hydrophobic characteristics. How does the structure of cuticle wax benefit the plant?
A.It forms a waterproof coating to prevent water from entering or existing the leaves
B.It creates a substance that attracts insects to feed on the leaves
C.it release extra proteins from the leaves to the rest of the plant during warm months
D.It stores sugars in the leaves that can be used for photosynthesis
Answers
Answer:
A
Explanation:
3 C6H1206
How many molecules of Glucose are shown in
the formula above?
Answers
Answer:
they are three molecules of glucose