Answer:
The answer would be to always wash your hands!
Answer:
The most common safety rules to follow before leaving a lab are the following:
Explanation:
Wipe down all equipment, materials, etc with disinfectant wipes.
Throw out any trash or biohazardous materials.
Store papers, documents, and lab equipment such as microscopes and goggles back where they are supposed to be stored.
Make sure to turn off all equipment so they aren't running while you or others aren't there.
Hope this info helps and please mark brainliest!HELP QUICK-Which of the following is true regarding the atoms involved in a chemical reaction?
The same number of each type of atom will always be present before and after a chemical reaction takes place.
Some of the atoms present before the reaction will always be lost during a chemical reaction.
Some of the atoms will always be changed into a different type of atom by a chemical reaction.
During a chemical reaction, atoms will always be combined into much larger molecules.
Answer:
The same number of each type of atom will always be present before and after a chemical reaction takes place.
Explanation:
Being active at night and sleeping in burrows during the day is an adaptation of many animals living in the _____________
Design a bark-feeding mammal that burrows its way from tree to tree.
What adaptions would you give it to protect it from predators ?
Answer:
Sharp teeth and sharp claws so it can shred away the bark, and help for attacks
Good hearing and ears to be aware of noise in their surroundings
HELP PLZ!!
At what point in cellular respiration is glucose completely oxidized to carbon dioxide?
Question 6 options:
a)
Glycolysis
b)
Intermediate step
c)
ETC
d)
Citric acid cycle
Answer:
LETTER A
Explanation:
During the process of glycolysis in cellular respiration, glucose is oxidized to carbon dioxide and water. Energy released during the reaction is captured by the energy-carrying molecule ATP
Every organism has a ______ number of chromosomes.
Answer:
46
Explanation:
is the answer of this quastion
Ou just read an article on the Endosymbiotic Theory. Based on what you read, what is the importance of the Endosymbiotic Theory?
Answer: The endosymbiotic theory suggests that eukaryotic organisms evolve from primitive prokaryotic organisms.
Explanation:
According to the endosymbiotic theory the organelles like mitochondria and chloroplast in the eukaryotic cells have arisen from aerobic bacteria. The aerobic bacteria being prokaryotic cell was consumed by the anaerobic bacteria or prokaryotic cell.
The following are the evidences of the origin of eukaryotic organisms from prokaryotic organisms:
1. The chloroplast and mitochondria have circular DNA like bacteria.
2. The mitochondria and chloroplast reproduce through binary fission which also occurs in bacteria.
Answer:
The Endosymbiotic Theory states that the mitochondrion and chloroplasts were consumed by a cell and now depend on one another to survive. Endosymbiotic Theory helps us by giving us the technology to use forensic sciences to solve cold cases.
Explanation:
What are the proper attire as part of personal hygiene.
1.
2.
3.
4.
5.
plsss ASAP
Answer:
This may be coats, aprons, gloves, hairnets, beard nets and footwear. Clothing, footwear and headwear must be in good, clean condition. Hairnets must be worn by everyone. Any facial hair (beards and moustaches) must be covered by a beard net.
Explanation:
i hope you understand better
DNA and RNA are made of what monomers? ___________________________
42. What are the 3 components of a nucleotide? ________________________________________
43. What are the elements found in nucleic acids?___________________________________
44. What are the 3 polymers for nucleic acids.________________________________________
45. What are the 2 main functions for nucleic acids.________________________________________________________________________
Answer:
42. Nucleotides are composed of three subunit molecules: a nucleobase, a five-carbon sugar (ribose or deoxyribose), and a phosphate group consisting of one to three phosphates. The four nucleobases in DNA are guanine, adenine, cytosine and thymine; in RNA, uracil is used in place of thymine
Explanation:
43.Nucleic acids contain the same elements as proteins: carbon, hydrogen, oxygen, nitrogen; plus phosphorous (C, H, O, N, and P). Nucleic acids are very large macromolecules composed of repetitive units of the same building blocks, nucleotides, similar to a pearl necklace made of many pearls.
44.polymer of nucleic acid
33 terms. The two main types of nucleic acids are deoxyribonucleic acid (DNA) and ribonucleic acid (RNA). Threose nucleic acid (TNA) is an artificial genetic polymer in which the natural five-carbon ribose sugar found in RNA has been replaced by an unnatural four-carbon threose sugar.
Witch of the following would most likely produce a earth quake
Answer:
the earthquake is held mostly is soft rock which is sleeping with each other
help me give this answer bord near
12)Give reasons:
a)mining leads to pollution
b)fossils fuel on burning create air pollution.
c)dams do not always have positive effects
Answer:
too hard.................:............
Explain how an biotic factor (stronger storms, warmer oceans, or lower ocean pH) can affect populations in a coral reef ecosystem
Not only is the biota important, but the abiotic factors in the ocean are also important because both groups work together. The abiotic factors in the ocean help the ocean to 'work'. For example, phytoplankton (autotrophs) need light, nutrients, CO2 (dissolved gases) to photosynthesize.
Answer:
Biotic factors include plants, animals, and microbes; important abiotic factors include the amount of sunlight in the ecosystem, the amount of oxygen and nutrients dissolved in the water, proximity to land, depth, and temperature. Sunlight is one the most important abiotic factors for marine ecosystems.
Explanation:
Gametes (sex cells) in the flower require nutrients from the soil to ensure proper functioning. Which list of systems below best describes the interaction in that statement?
Answer:
There is a great interaction between reproductive stage and absorption of nutrients.
Explanation:
Good interaction of reproductive stage and absorption of nutrients from the soil is very important for producing good and healthy flowers because reproductive stage needs nutrients. If these nutrients can't available in the soil so the plant produced less flowers and as a result less seeds are produced in the end of this reproductive stage so we can say that reproductive stage and absorption of nutrients has a great interaction between each other.
During metaphase II, do homologous chromosomes pair up as in metaphase I?
Answer:
No
Explanation:
They pair up in metaphase 1 not 2
Which area on the earth experience the largest difference between summer and winter?
Answer:
North Pole
Explanation:
The surface of the Earth is inclined perpendicular to the sunlight (as in the left hand side of figure 2), and so receives the maximum amount of sunlight per square area. The situation is most extreme at the north and south poles. At the north pole, the season is one long,cold night which last for six months.
The topic is genetics
Answer:
Heterozygous
Explanation:
Heterozygous mean 'different' and homzyg mean 'same'. They have Bb, they are 2 different alleles so its heterozygous.
Why does planting cover crops help conserve soil?
A. plants take up nutrients from soil.
B. Cover crops help remove pollution from the soil.
C. Uncovered soil is easily eroded by wind and water.
D. Cover crops sell for more money that farmers can then use to invest in new soil.
Answer:
A. plants take up nutrients from soil.
Explanation:
A cover crop slows the velocity of runoff from rainfall and snowmelt, reducing soil loss due to sheet and rill erosion. Over time, a cover crop regimen will increase soil organic matter, leading to improvements in soil structure, stability, and increased moisture and nutrient holding capacity for plant growth.
HELP I NEED HELP ASAP
HELP I NEED HELP ASAP
HELP I NEED HELP ASAP
HELP I NEED HELP ASAP
What two elements are used to produce energy during nuclear fission?
A. Petroleum and Uranium
B. Petroleum and Hydrogen
C. Plutonium and Uranium
D. Hydrogen and Uranium
Answer:
C Plutonium and Uranium
Explanation:
u Uranium and plutonium are commonly used elements that produce energy during nuclear fission.
Petroleum is used to produce energy for transportation, heating and electricity, not nuclear fission
Calculate the population of 217 bison at the end of 2 years if it decreases at a rate of 7.5% per year. _____ bison
7.5% of 217 = 16.275
At end of 1 year bisons = 217 - 16.275 = 200.725
7.5% of 200.725 = 15.054375
At end of 2 years bisons = 200.725 - 15.054375 = 185.670625 (Rounding that to the tens)
=186
The spectrum of a distant star contains sodium lines that are offset from their normal position, as shown. What is the most likely explanation?
Sodium spectra
A. The star is relatively hot.
B. The star is relatively cool.
C. The star is moving rapidly toward us.
D. The star is moving rapidly away from us.
Answer:
Explanation:
C
How do symbiotic and predatory relationships differ
Answer:
A symbiotic is a relationship where both sides benefit. Only the predator benefits in a predatory relationship.
Explanation:
Explain Kelpers three laws of motion
Answer: There are actually three, Kepler's laws that is, of planetary motion: 1) every planet's orbit is an ellipse with the Sun at a focus; 2) a line joining the Sun and a planet sweeps out equal areas in equal times; and 3) the square of a planet's orbital period is proportional to the cube of the semi-major axis of its
Explanation:
state mendels laws and exlain the law of purity of gametes
Answer:
Blending. Hint:Mendel's law of purity of gametes states that the unit factors are brought together and paired during fertilization, however, these unit factors do not affect or mix with each other though they have become paired.
Explanation:
Look at the sketches. The sketch on the top is of a
fish embryo, and the sketch on the bottom is of a
chicken embryo.
Which of the following statements is the best
explanation for why the embryos look so similar,
considering how different an adult fish and chicken
are?
Answer:
“Fish and chickens share a common ancestor “
Explanation:
Answer:
fish and chicken share a common ancestor
Explanation:
which three of the following are examples of adaptions for an animal that lives in a snowbound region?
Answer:
1. thick fur/coat
2. thick layer of fats
Which function of the integumentary system is illustrated in the release of sweat? A. Absorption B. Protection C. Sensory Reception D. Regulation E. Secretion F. Both regulation and secretion
Answer:
F. Both regulation and secretion
Explanation:
Through sweat glands and superficial blood vessels, the skin is able to cool the body and regulate its internal temperature.
The eccrine sweat gland, which is controlled by the sympathetic nervous system, regulates body temperature. When internal temperature rises, the eccrine glands secrete water to the skin surface, where heat is removed by evaporation.
what is four types of evidence that is used to determine evolutionary relatedness
Answer:
Evidence for evolution: anatomy, molecular biology, biogeography, fossils, & direct observation.
Explanation:
Hope this helped Mark BRAINLEST!!
A male with hemophilia (recessive, sex-linked) and a female who is normal (no hemophilia) have a girl? What is the likelihood that a girl will have the disorder?
a - 0%
b - 50%
c - 100%
d - Impossible to tell
Answer:
Option A is the correct answer.
- 0%
Explanation:
This is because the male is hemophilia recessive, not dorminant and the female allele has no traits of hemophilia therefore, the offspring have zero percent of having the diseases. The girl allele will be normal and recessive of hemophilia. Because there is no dorminant allele that can result into hemophilia.
Between males and females, who is more likely to receive a sex-linked disease and why?
a - Males because they have a Y chromosome
b - Females because they have Xs
c - Males because they only have one X
d - Females because they do not have a Y
What is the difference between an objects structure and its function
HELP
Answer: The objects structure is like the base,the function is what its used for : >
In what way are cell biologists and molecular biologists similar?
O Both types of biologists work in zoos and laboratories.
O Both types of biologists study animals exclusively.
O Both types of biologists study microscopic materials.
O Both types of biologists require a PhD in biology.
Answer: microscopic materials
Explanation: