why erector muscles contract in regularing body temperature at cold temperature ?
Answer:
Erector muscles contract in regularing body temperature at cold temperature because causing body hairs to stand on end.
Have a nice day!!Pls help me answer thank you
Answer:
b is the correct answer
Explanation:
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The maintenance of constant internal conditions in an organism is know as
Bonjour!
This is known as homeostasis.
Homeostasis - is when organisms maintain a constant internal environment while their external environment is changing.
Au revoir!
In which order career related jobs are arranged
Answer:
In chronological order.
Seema left a slice of bread in her tiffin box after a few day she saw greenish white growth on it
A. What kind of organisms must have grown
B. How do such organisms obtain nutrition
C. What is the mode of nutrition know as
Answer:
a what kind of organisms must have grown
Explanation:
List the major organs of the central nervous system ninr tynes of nerves? only major
Answer:
brainspinal cordsensory organs#Make this answer as brainliest answer
3. The
is a unit of the Department of Health and Human Services. It is
responsible for monitoring safety and security risks and health hazards in the
United States and abroad.
A. National Institute of Occupational Safety and Health (NIOSH)
B. Centers for Disease Control and Prevention (CDC)
C. Occupational Safety & Health Administration (OSHA)
D. Occupational Safety & Health Act
______ , _______ , _______, and ________ are four macromolecules that are important to life.
Answers=
carbohydrates
nucleic acids
lipids (fats and oils)
hydrogen
proteins
oxygen
What was the name of the orbiting telescope that helped explore space by taking images like this one? THIS IS SICENCE
Answer:
Hubble Space Telescope
Hubble Space Telescope is the name of the orbiting telescope that helped explore space by taking images like this one. Therefore, option (4) is correct.
The Hubble Space Telescope takes photographs like these. Famous astronomy observatory named for Edwin Hubble, launched in 1990. It provides vivid, detailed photographs of celestial objects by orbiting Earth beyond the atmosphere.
Its powerful equipment have revealed faraway galaxies, nebulae, stars, and planets, revolutionising our view of the cosmos. Cosmology advances have revealed the universe's age and expansion pace. Hubble's magnificent images have increased our understanding and sparked public enthusiasm in space exploration and research. Therefore, option (4) is correct.
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Your question is incomplete but your full question was:
What was the name of the orbiting telescope that helped explore space by taking images like this one?
(1 point)
Galileo Space TelescopeApollo Space TelescopeInternational Space TelescopeHubble Space Telescopecytology deals with the study of_____
Answer:
Cytology is the study of individual cells of the body.
Answer:
cytology deals with the study of Individual cells of the body.Compare and contrast a provirus and viral DNA.
A provirus is viral DNA incorporated into the host cell’s DNA.
A provirus is newly replicated viral DNA after injection.
A provirus is the host cell’s DNA that has been destroyed.
A provirus is bacterial DNA incorporated into the viral DNA.
The main difference between 'provirus' and 'viral DNA' is that provirus is viral DNA incorporated into the host cell’s DNA (Option 1)
A provirus can be defined as the genetic material (DNA) of a particular virus which is integrated into the genome of an individual.Since a provirus is already integrated into the host's genome, this sequence can be transmitted from one generation to the next by cell division (either mitosis and meiosis depending on the cell type).For example, the human immunodeficiency virus (HIV) is a retrovirus whose genome is integrated into the host genome (e.g., into host CD4 cells), thereby making it a provirus.Learn more in:
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Answer:
A
Explanation:
Enzymes and substrate fit together at the active site to form a lock and key mechansim. This means
a) if they don't fit, it is the wrong substrate or the enzyme is denatured.
b) substrates work on enzymes, allowing them be be denatured.
c) the shape and size of the enzymes does not matter.
d) enzymes are not specific and work on a variety of substrates.
Answer:
the answer is option b hope you understand
The lock and key mechanism of enzyme and substrate means that if they don't fit, it is the wrong substrate or the enzyme is denatured.
WHAT IS AN ENZYME?
An enzyme is a protein substance that regulates biochemical activities in living cells by acting as a catalyst. Enzymes act on substrates but they do not get changed during the process. This means that enzymes can be used over and over again. Enzymes are substrate-specific i.e. they act on specific substrates. The lock and key model explains the mechanism of action of enzymes. Enzymes attach to substrate at their active sites and act on them to form products.The lock and key model explains that if enzyme and substrate don't fit, it is either the wrong substrate or the enzyme is denatured.
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Consider an experiment in which subjects are given a pill to test its effectiveness in reducing the duration of a cold. Which of the following is the best way to treat the control group.
A. Give the control group two pills instead of one.
B. Do nothing with the control group.
C. Give the control group a pill that looks like the test pill but does nothing
Answer:
c.
Explanation:
(comment if you need an explenation and I'll give it)
Give the control group a pill that looks like the test pill but does nothing is the best way to treat the control group. Option C is correct.
The best way to treat the control group in this experiment is option C: give the control group a placebo pill that looks like the test pill but does not contain any active ingredients. Here's why:
Ensuring Validity: A control group is used to establish a baseline for comparison. By giving the control group a placebo pill that looks identical to the test pill, researchers ensure that both groups experience the same psychological and physical conditions except for the presence of the active ingredient. This helps eliminate potential bias and confounding variables that could affect the results.
Blinding: Giving the control group a placebo maintains blinding, where participants do not know whether they are receiving the active treatment or the placebo. This prevents participants' expectations or beliefs from influencing the outcomes, enhancing the experiment's validity.
Placebo Effect: The placebo pill accounts for the placebo effect, a psychological phenomenon where participants experience improvements in their condition due to their belief in the treatment's effectiveness. By giving the control group a placebo, researchers can assess whether the test pill's effects are genuinely due to the active ingredient or influenced by participants' perceptions.
Ethical Considerations: It's important to provide some form of treatment to the control group to ensure they are not harmed or misled. Giving them a placebo pill with no therapeutic effect is an ethical way to include them in the study while minimizing potential risks.
Overall, using a placebo that mimics the appearance of the test pill ensures a controlled and rigorous experiment, where the effects of the active ingredient can be accurately evaluated. This approach maintains scientific integrity, valid comparisons, and ethical considerations.
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Particles that become planets
Explanation:
The planets in our Solar System are believed to have formed from the same spinning disc of dust that formed the Sun. This disc, called the solar nebula, was composed mainly of hydrogen and helium, but also had other elements in smaller proportions.
A DNA segment is changed from AATTAG to AAATAG. What type of mutation is this and what is its effect on the genetic variation of a population?
A.
The mutation is a substitution which causes a decrease in the genetic variation of a population.
B.
The mutation is an insertion which causes a decrease in the genetic variation of a population.
C.
The mutation is an insertion which causes an increase in the genetic variation of a population.
D.
The mutation is a substitution which causes an increase in genetic variation of a population.
The mutation from AATTAG to AAATAG is a substitution which causes an increase in genetic variation of a population.
MUTATION:
Mutation refers to any change in the nucleotide sequence of DNA molecule. Mutation can be of different types depending on how it occurs. A substitution mutation is that in which one or more nucleotide base is replaced by another in the sequence. In this question, an original sequence of DNA is given as AATTAG. It was mutated to AAATAG via the replacement of 'T' with 'A'. This means that it is a substitution mutation. However, this mutation will cause an increase in the genetic variation i.e. difference in a population.Learn more at: https://brainly.com/question/21220597?referrer=searchResults
1. (-4, 6) and (3,-7)
Answer:
60
Explanation:
70-10=60
A stapler is used to staple 100 papers,it jams 5 times during the trial.A different brand of stapler performs the same test,it jams 22 times?
Answer:
Dang that sucks
An interaction between two organisms in which
one usually benefits is known as
Answer:
Symbiosis is a relationship between two organisms: it can be mutualistic (both benefit), commensal (one benefits), or parasitic
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please help me thankyou
The answer is in the picture attached.
Answer:
................................
The flow of blood is ______________
A. Directly related to the pressure gradient but inversely related to the resistance
B. Inversely related to both the pressure gradient and the resistance
C. Inversely related to the pressure gradient but directly related to the resistance.
D. Directly related to both the pressure gradient and the resistance.
Answer:
I would say C because it is related to the resistance
what does an observation use
Answer:
Observation is the active acquisition of information from a primary source. In living beings, observation employs the senses. In science, observation can also involve the perception and recording of data via the use of scientific instruments. The term may also refer to any data collected during the scientific activity
which of the following options provides evidence of how algal blooms harm ocean ecosystems
Answer:
Harmful algal blooms cause thick, green muck that impacts clear water, recreation, businesses and property values
Explanation:
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What do all of the indicators you have used have in common?
Answer:
Weak acids and bases are indicators. All indicators are weak acids. An acid-base conjugate pair has different colors. Any indicator changes color when the pH of its solution is 7.
Explanation:
What do scientists hypothesize about production of free oxygen
Honors Biology help
please study the graph. Which statement below best describes what is happening with this photosynthetic organism (an organism that does photosynthesis) at hour 12?
Answer:
D. it is nightime
Explanation:
Everything slows down. Wich infers no light energy.
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Calculate the percentage change in mass of the onions that were on the most concentrated solution of sodium chloride
Show your working
Answer:
-5.3
Explanation:
................
name each of the following
I will give brainliest
Answer:
a. Arota
b. pulmonary trunk
c. left atrium
d. mitral (bicuspid) valve
e. left ventricle
f. interventricular septum
g. right ventricle
h. inferior Vena Cava
j. right atrium
k. aortic valve
Explanation:
hope it may help you
For the respiration in yeast cells lab with the bottles and balloons what would be a suitable conclusion for the lab?
Answer:
[tex]4(x + 3) = 6(x + 1)[/tex]
What are the four pillars the hold the foundation of Biology?
Answer:
homeostasis
reproduction
genecits
evolution.