What is a biome in science
Answer: a large naturally occurring community of flora and fauna occupying a major habitat.
Explanation:
What affects the efficiency of enzymes?
A) pH and activation energy
B) pH and temperature
C) pH an DNA
D) pH and coenzymes
Similarities and differences between alleles
Answer:
A gene is a portion of DNA that determines a certain trait. An allele is a specific form of a gene. Genes are responsible for the expression of traits. Alleles are responsible for the variations in which a given trait can be expressed.
Intracellular pathogens sometimes produce ________ that can kill phagocytes. Intracellular pathogens sometimes produce ________ that can kill phagocytes. PRRs leukocidins PAMPs lipopolysaccharides
Answer:
Leukocidins.
Explanation:
Intracellular pathogens sometimes produce leukocidins that can kill phagoctytes because leukocidins is a type of cytotoxin that is produced by pathogens which kill the phagocytes producing pathogens. The phagocytes destroy pathogens by engulfing the pathogens and destroying it by chemical toxins present inside the phagolysosome which is by a process called phagocytosis. The leukocidin kill phagocytes that engulf the pathogens making the pathogens to be able to affect the organism in which it invade.
1pt Which best represents a mixture?
A. soup
B. water
C. salt
D. Snow
Describe one advantage of having bacteria in the gut
Answer:
flu
Explanation:cause the flu starts from the gut
What are some possible short and long-term medical concerns for crewmembers on longer space exploration ships
Answer:
Human travel to Mars and beyond is no longer science fiction.
Through shuttle research we know how the body changes, what we
need to do to fix some of the problems or—better yet—prevent them,
the importance of monitoring health, and how to determine the
human body’s performance through the various sequences of launch,
spaceflight, and landing. Basically, we understand how astronauts
keep their performance high so they can be explorers, scientists,
and operators.
Astronauts change physically during spaceflight, from their brain,
heart, blood vessels, eyes, and ears and on down to their cells.
Many types of research studies validated these changes and
demonstrated how best to prevent health problems and care for the
astronauts before, during, and after spaceflight.
During a shuttle flight, astronauts experienced a multitude of
gravitational forces. Earth is 1 gravitational force (1g); however,
during launch, the forces varied from 1 to 3g. During a shuttle’s
return to Earth, the forces varied from nearly zero to 1.6g, over
approximately 33 minutes, during the maneuvers to return. In all,
the shuttle provided rather low gravitational forces compared with
other rocket-type launches and landings.
The most pervasive physiological human factor in all spaceflight,
however, is microgravity. An astronaut perceives weightlessness and
floats along with any object, large or small. The microgravity
physiological changes affect the human body, the functions within the
space vehicle, and all the fluids, foods, water, and contaminants.
We learned how to perform well in this environment through the
Space Shuttle Program. This information led to improvements in
astronauts’ health care not only during shuttle flights but also for the
International Space Station (ISS) and future missions beyond
low-Earth orbit. Shuttle research and medical care led directly to
improved countermeasures used by ISS crew members. No shuttle
mission was terminated due to health concerns.
Explanation:
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What is the answer for 1. Graph the data in the tables above. What trends in CO2 levels do you notice over the course of a year? In the SWEET BEAT’S: MAKING SUGAR OUT OF THIN AIR article
Answer:it stays relatively the same
Explanation:
Explain why a change in extracellular Na did not alter the membrane potential in the resting neuron.
Answer:
Explanation:
A change in extracellular Na did not alter the membrane potential in the resting neuron because the plasma membrane of a neuron is composed of little Na+ leakage channels and it is slightly permeable to few Na, thus lead to reduction in diffusion if Na inside and outside the cells.
How many water molecules would be needed to break amylose down into four glucose molecules?
Answer: 3 molecules of water to break down whatever sugar it is into four glucose molecules
Explanation: Amylose does not break down into four glucose molecules. Amylose acts on some sugar (which is four times larger than glucose, stachyose for example) and produces four glucose molecules.
What statement about DNA is correct?
A. A child DNA will be unrelated to the mothers or fathers DNA.
B. A child’s DNA will show similarities to both mother and fathers DNA.
C. A females DNA will exactly match the mothers DNA.
D. A males child’s DNA will exactly match the fathers DNA
Answer:
b is the correct answer
Who are the parents of:
b. IIF:
c. IIIA:
d. IIIG
ASAP PLZ Which level of organization is directly below organ system
A:organelle
B:Cell
C:Tissue
D:organ
d- organ
Explanation:
13. Which of the following is a homogeneous mixture?
A. Fruit salad
B. Salad dressing
C. Rubbing alcohol
Answer:
it is salad dressing
Explanation:
What characteristics describe the solutes in the NaCl solutions in this activity?
Select all that apply:
-small
-large
-non-polar
-polar
-ionic/charged
(Select two)
Answer:
Ionic
Polar
Explanation:
Normally the NaCl is ionic and polar.
It is polar because of the large difference in the electronegativity of the Na and CL.
It is also ionic because it forms ions in the solutions and combines with other ions to form an acid or a base.
When NaCl is mixed in water the following reaction takes place
NaCl + H₂O⇒ NaOH +HCL
NaOH is a base and HCL is an acid. Usually by combining a salt and water an acid and a base is obtained.
Penelope lived in California and was working with her local
community to help prevent desertification in their area due to the
drought. The community consisted of many residences, a variety
of industries, and a few farms. What is one way to help prevent
desertification?
allow livestock to overgraze the pasture
remove trees and other natural vegetation
overwater the ground causing soil erosion
rotate different crops that are grown each season
Answer:
d. rotate different crops that are grown each season
Explanation:
because different crops need different recources and that gives it a break its the only reasonable answer
allow livestock to overgraze the pasture makes zero sense and would make the problem much worse
remove trees and other natural vegetation would also hurt the environment
overwater the ground causing soil erosion its better but would do nothing to aid in the goal
so hense the last one(my family are farmers)
Which cells perform more functions human cells or bacterial
Answer:
bacterial
Explanation:
I need number 8 please!!! Thank youuu❤️
Answer:
through water
Explanation:
it just makes sense
PLEASE HELP ASAP
to cause cancer, proto-oncogenes require___allele(s) to be mutated and therefore are considered___. the mutation results in a ___ of functioned
Laaj made a Venn diagram to compare and contrast the two stages of cellular respiration.
Which belongs in the area marked X?
Energy is released.
Oxygen is used up.
Glucose is broken down.
Carbon dioxide is used up.
Answer:
I believe its C
Explanation:
Answer:
C) Glucose is broken down
Which statement explains the effect of an inhibitor on an enzyme?
A.The enzyme will be unable to produce more enzymes.
B.a substrate will be unable to attach to the enzyme.
C.a substrate will be able to bond with the enzyme.
D.The enzyme will likely be attacked by immune cells.
Answer:
D
Explanation:
The statement that is explaining the effect of an inhibitor on an enzyme is that a substrate will be unable to attach to the enzyme. The correct option is B.
What is inhibitor?A reaction inhibitor is a compound that slows or precludes a chemical reaction. A catalyst, on the other hand, is a material that accelerates a chemical reaction.
An enzyme inhibitor is a molecule that unites to an enzyme and prevents it from working.
Enzymes are proteins that accelerate chemical reactions that are vital to life, such as the conversion of substrate molecules into products.
Cimetidine, erythromycin, ciprofloxacin, and isoniazid are illustrations of enzyme inhibitors.
Small molecule inhibition of enzymes is a significant control mechanism in biological systems.
This is a common drug discovery strategy that can provide a better understanding of enzyme activity, for example, by identifying residues critical for catalysis.
Thus, the correct option is B.
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substance to a
Thermal energy flows from a
substance.
Answer:
Thermal energy comes from a substance whose molecules and atoms are vibrating faster due to a rise in temperature. Heat energy is another name for thermal energy. Kinetic energy is the energy of a moving object. As thermal energy comes from moving particles, it is a form of kinetic energy.
Explanation:
define the term osmosis and how it works
Answer: Osmosis is the spontaneous net movement of solvent molecules through a selectively permeable membrane into a region of higher solute concentration, in the direction that tends to equalize the solute concentrations on the two sides. It may also be used to describe a physical process in which any solvent moves across a selectively permeable membrane (permeable to the solvent, but not the solute) separating two solutions of different concentrations.
Explanation:
Which of the following is NOT an example of a compound?
salt
water
limestone
hydrogen
what animal diversity is
Answer:
?
Explanation:
A person is pulling west with 35 N of force against a person pulling east with 15N of force. What is the net force?
Answer:
50 N west
Explanation:
thats your answer
Which best describes the vulva?
It is a muscular organ where a developing offspring grows.
It is the external part of the female genital organs.
It is the birth canal of the female reproductive system.
It is the organ in the female that carries the egg to the uterus.
Answer:
the best of those options that would describe the vulva would be: it is the external part of the female genital organs.
Explanation:
Answer:
The correct answer is
B. It is the external part of the female genital organs.
Explanation:
just took the test from E D G E
Hope this helps
Which classification level is MORE specific and LESS broad?
:)
What is the building block for living things? *
O Carbon
O Hydrogen
O Phosphorous
Answer:
hydrogen
Explanation:
5.
Salad dressing is an example of a homogeneous mixture,
6.
The simplest type of substance is a(n) compound,
When elements combine to form compounds, their properties
7.
do not change
8.
The chemical symbol for water is H20.
9.
Substances in a mixture keep their own properties.
10.
The substances in a heterogeneous mixture can usually be seen
and are easily separated.
Answer:how am i supposed to answer?
correct answers are:
Salad dressing is an example of a homogeneous mixture. - False
The simplest type of substance is a compound. - False
When elements combine to form compounds, their properties do not change. - False
The chemical symbol for water is H20. - False
Substances in a mixture keep their own properties. - True
The substances in a heterogeneous mixture can usually be seen and are easily separated. - True
Salad dressing is typically a heterogeneous mixture. It consists of various ingredients, such as oil, vinegar, herbs, spices, and sometimes other additives. The simplest type of substance is an element, not a compound. An element consists of only one type of atom and cannot be broken down into simpler substances by ordinary chemical means. When elements combine to form compounds, their properties often change. Compounds have unique chemical and physical properties that are different from the properties of the individual elements that compose them.The chemical symbol for water is H2O, not H20. In a mixture, the substances retain their individual properties. They do not chemically combine or react with each other. In a heterogeneous mixture, the components are not uniformly distributed and can often be seen as distinct phases or particles.
Learn more about mixtures here.
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