The Circulatory system helps in providing impure blood to heart and taking pure blood to cells with hemoglobin.
The respiratory system handles the coming of oxygen to body and out of carbon dioxide from body
4. Who discovered the first known case of a typhoid carrier?
Answer:
Mary Mallon (September 23, 1869 – November 11, 1938), also known as Typhoid Mary, was an Irish-born cook believed to have infected 53 people with typhoid fever, three of whom died, and the first person in the United States identified as an asymptomatic carrier of the disease pathogen, Salmonella typhi.
Answer:
mary mallon
Explanation:
Mary Mallon, the first known case of a healthy carrier in the United States, was proven responsible for the contamination of at least one hundred and twenty two people, including five dead
What is a qualitative observation?
Answer:
A qualitative observation involves the use of five sensory organs, sight, smell, taste, touch, and hearing, and their function to examine the attributes. Being subjective in nature, it focuses on the characteristics and qualities of the variables rather than the numerical value.
Explanation:
mark as a brainliest answer if it helps you
Answer:
A qualitative observation involves the use of five sensory organs , sight,smell ,taste,touch and hearing
Explanation:
A qualitative observation involves the use of five sensory organs, sight, smell, taste, touch, and hearing, and their function to examine the attributes. Being subjective in nature, it focuses on the characteristics and qualities of the variables rather than the numerical value. organs, sight, smell, taste, touch, and hearing, and their function to examine the attributes. Being subjective in nature, it focuses on the characteristics and qualities of the variables rather than the numerical value.
How would a drug that blocks acetylcholinesterase (Za) activity at the motor end plate aff
ect skeletal
muscle contractions?
A. It would make the muscles less excitable.
B. It would prolong the duration of muscle contractions.
C. It would cause flaccid paralysis (relaxed muscles unable to contract).
D. It would have no effect on skeletal muscle contractions.
Answer:
C
Explanation:
It would cause flaccid paralysis (relaxed muscles unable to contract).
The movement of oxygen from the blood into the systemic cells is referred to as
O a pulmonary ventilation
O b. alveolar gas exchange.
O c. systemic gas exchange
O d. gas transport
CLEAR MY CHOICE
Question 9 of 10
Which is not a basic function of a cell?
A. Storing energy
B. Destroying energy
C. Releasing energy
D. Obtaining energy
SUBMIT
Answer:
B
Explanation:
a cell does NOT destroy energy
What is the biology
Answer:
science that studies living things
Explanation:
it includes plants and animals so basically anything that has life
Answer:
Biology is the study of living organisms, divided into many specialized fields that cover their morphology, physiology, anatomy, behaviour, origin, and distribution.
Explanation: Branches of biology are different topics related to biology; for example the 3 major branches of biology are:
Botany, also called plant science, plant biology or phytology, is the science of plant life and a branch of biology. A botanist, plant scientist or phytologist is a scientist who specialises in this field
Zoology is the branch of biology that studies the animal kingdom, including the structure, embryology, evolution, classification, habits, and distribution of all animals, both living and extinct, and how they interact with their ecosystems.
Microbiology is the study of microorganisms, those being unicellular, multicellular, or acellular. Microbiology encompasses numerous sub-disciplines including virology, parasitology, mycology and bacteriology.
Which of the following is NOT a function of the nervous system?
a. receives information about your body
c. signals a response to stimuli
b. maintains homeostasis
d all of these are nervous system functions
Answer:
d
Explanation:
all of these are nervous system function
Answer:
D
Explanation:
All of these are nervous system functions, your nervous system controls your whole body. Since your nervous system is comprised of your brain and other things like the brain stem, everything in your body you can imagine is from the nervous system.
If both parents are (hetero-zygous),
what percent of their offspring would be (homo-zygous) recessive?
Question 2 options:
100%
25%
50%
75%
Which atmospheric condition will increase the amount of air pollution close to the surface of the Earth?
- Prevailing winds
- Dry deposition
- Thermal inversion
- Photochemical smog
The atmospheric condition will increase the amount of air pollution close to the surface of the Earth is Prevailing winds.
Prevailing winds in the ecosystem blows dust and other particles from
different areas into the air thereby making the air dusty and unsafe for
breathing by organisms.
Prevailing winds has its importance in helping to determine the amount of rainfall an area will receive during a period of time.
Read more on https://brainly.com/question/25255623
What does mRNA do?
1. carry
carry coded message from the genes to the ribosomes where proteins are built
2. carry amino acids to the ribosomes
3. make up ribosomes
4. help with RNA splicing
Answer:
The answer is 1. Carry coded message from the genes to the ribosomes where proteins are built.
Explanation:
mRNA stands for messenger RNA, so 1 would be correct.
Hope this helps!!
36. Which of the following statement is not true about the properties of an acid?
a. Taste sour
b. Turns litmus paper to blue
c. Reacts with metal
d. Corrodes fabric, skin, and paper
Answer:
c
Explanation:
Answer:
B
Explanation:
b)Acid turns litmus paper to red not blue
Name a type of scientist to help people recover from an illness. how do they do this?
Answer:
Pathologist
Explanation:
A pathologist plays a crucial role in medical care. Sometimes called “the doctor's doctor,” they help the treating physician diagnose a patient and pinpoint the best course of treatment
Provide a potential hypothesis for the research topic and
explain whether the data support it. Also, explain the
reasons for the observed data trends.
Answer:
i think that the higher the body temperature the higher the cellular respiration
Explanation:
The graph indicates the relationship between body temperature and cellular respiration. As the body temperature increases, more ATP is produced, but after a certain temperature, there is no cellular respiration.
What is cellular respiration?In cellular respiration, the cell breaks down glucose and forms ATP. Glucose is broken down by glycolysis, the Krebs cycle, the electron transport chain, and finally ATP is formed.
In the graph, it is shown that an increase in body temperature is related to an increase in ATP molecule production. ATP molecule production is nearly zero at 80 degrees body temperature. As the temperature increases to 100 degrees, ATP production increases to nearly 50.
After 100 degrees, the body temperature rises, but there is a decrease in ATP production. After 100 degrees, the enzymes required for cellular respiration don't work. Hence, a decline in ATP is seen.
Hence, after a certain temperature, the enzymes involved in cellular respiration don't function as their structure changes.
To learn more about cellular respiration, refer to the following link:
https://brainly.com/question/7152488
# SPJ2
Need help ASAPbdbssnnsjsnsns
. What could explain how these rocks got so far apart?
Answer:
What could explain how these rocks got so far apart? The United States and Portugal are parts of different plates. ... The United States and Portugal are parts of different plates. The plates slowly moved far apart as soft, solid rock from underneath got added to the edges of the plates over millions of years.
Explanation:
OMG I NEED HELP RN
Simplify.
6X2+15
21
27
46
51
Answer:
27
Explanation:
6×2+15........6×2=6+6=12
12+15
27
History of Present Problem:
Frank was driving home after a long day at work. It was late and he was having problems driving in the dark with so
much traffic. He was forced to take a detour and felt tired, so he took another sip of soda. "What would I do without
sugar and caffeine?" he mumbled to himself. Frank realized that he should probably stop the car as he noticed his hands
begin to shake, but he continued anyway. Rounding a corner, he realized that he was having trouble focusing on the
road. He tried to blink away the blurriness and shook his head, but things did not change. In an instant, the car slipped
off the road and hit a tree. "What was that?" exclaimed Frank to the night air. He quickly got out of the car and checked
himself out. Other than the shock of the accident, Frank seemed to be okay. He pulled out his cell phone and called his
wife, Stacey, to come pick him up. He then called to report the accident to the police and his insurance agent. His wife
arrived about an hour later and looked very concerned when she saw Frank sitting in the police car. "Why aren't you
going to the hospital?" screamed Stacey. "Were you drinking again?" "I'm fine, and no I wasn't drinking. Check with
Sergeant Eversman if you do not believe me. I lost focus; it has been a long day and my vision is a little off. This is too
much stress. Please, I just want to go home." The emergency staff checked him out and recommended he go to the
hospital for evaluation but Frank declined. They drove home, but Stacey continued to badger Frank about going to the
hospital.
Answer:
Frank might have been an alcoholic.
Explanation:
Because his wife,Stacey,asked him if he had been drinking and he also didnt want to go to the hospital for evaluation.
4. There is a new viral disease in the human population. You found that the
isolated viral particles do not lyse human cells when cultured together. You
also found the virus contained a ssRNA genome and curiously, you found
the viral sequences in the host cell genome. What Class of virus do you
think you have? How would you confirm this?
Answer:
COVI-19
Explanation:
Please help! will mark brainlist!!!
Which object is hotter in terms of its kinetic energy: the cup of coffee or the iceberg? Explain the reason for your answer in terms of your understanding of the kinetic molecular theory of matter.
Answer:
red-hot iron bar
Explanation:
An iceberg could even contain more heat energy than a cup of coffee or a red-hot iron bar. That's because its bigger and contains so many more molecules, each of which has some heat energy. The coffee and the iron bar are hotter (have a higher temperature), but the iceberg holds more heat because it's bigger.
Which of the following is a characteristic of hydrologic fracturing?
A. Large amounts of water force open cracks in rocks
B. Removal of topsoil to reach water supply
C. Transportation of coal via waterways
D. Use of machinery underground to mine coal
Answer:
A. Large amounts of water force open cracks in rocks
Explanation:
Hydraulic fracturing, or fracking, is a drilling method used to extract petroleum (oil) or natural gas from deep in the Earth. In the fracking process, cracks in and below the Earth's surface are opened and widened by injecting water, chemicals, and sand at high pressure.
A is basically explaining this the same way. Forcing cracks in the ground with liquids.
Hopefully I was a help to you. If not I am sorry and I wish you the most wonderful of days. :)
3. Ecosystems have
edge.
Answer:
The edge effect is an ecological concept that describes how there is a greater diversity of life in the region where the edges two adjacent ecosystems overlap, such as land/water, or forest/grassland.
Explanation:
hope im right
50 POINTS+ BRAINLIST
During the course of their work, healthcare professionals can be exposed to all kinds of germs. Three of these are viruses, bacteria, and fungi. Draw a Venn diagram that compares and contrasts these three pathogens. Give at least one example of diseases caused by each.
You don't actually need to draw a diagram, just give examples.
clearly is if the fungi get to u the first thing that gonna happn is you're going to get cancer and about bacteria stomach sickness diareah flu head ache and clearly its going to be hard for u to breath
Angular Momentum can be expressed
as which of the following
a. L = MPR
b. L = VRM
c. L = VPM
Discuss why insecticide sprays are ineffective in the fight against Zika and why scientists are looking for alternatives.
Answer:
Some existing methods for controlling Zika-carrying mosquitoes are not effective and may even be counter-productive.
Explanation:
It was found that while biological interventions did appear to reduce numbers of disease-carrying insects more than chemical controls, the quality of the evidence was often poor.
Which step of the scientific method do you perform after you form a
hypothesis?
A. Collect data and observations.
B. Draw conclusions.
C. State the problem.
ОО
D. Conduct an experiment.
Answer:
d. conduct an experiment
Answer:
D. Conduct an experiment.
Explanation:
State the Problem.
Collect Information (Data and Observations)
Form a Hypothesis.
Test Hypothesis: Conduct an experiment
Keep Accurate Record.
Check Results.
Repeat Experiment.*
Draw Conclusions.
what is this pointing too
c- coarse adjustment knob
d- stage clip
help pls pls help dfmndbfndsbfnsdmfbmnbfbnmdbfmn
What do you need help with?
Erythrocytes live for a maximum of.......days whereas platelets live for ....... days
Answer:
[tex]120 \: days;10 \: days.[/tex]
Explanation:
Thanks!!!!!
What make Eukaryotic cells different from Prokaryotic Cells?
Group of answer choices
Eukaryotic cells have membrane bound organelles and more complex structure
Eukaryotic cells do not have a nucleus and are unicellular
Eukaryotic cells all have cell walls and include bacteria and plants
Eukaryotic cells are mainly bacteria
Answer:
Eukaryotic cells have a membrane bound organelles and more complex structure
Explanation:
A bacterial cell usually contains a single loop of DNA that is located in the cytoplasm of the cell and is not surrounded by a nuclear membrane. Some bacteria have additional loops of DNA called plasmids. Plasmids can be used for genetic engineering because DNA from other organisms can be spliced into a plasmid loop. For example, scientists in the late 20th century discovered a way to insert the portion of human DNA that codes for the protein insulin into plasmid E. coli bacteria. Which statement best explains why these genetically modified bacteria have been useful to society?
A. Human diabetics are now more resistant to bacteria
B. The bacteria are resistant to human diabetics
C. The bacteria can now make their own insulin
D. the bacteria are used to produce cheap insulin.
Answer: A is the correct answer.
because for the treatment of one type of diabetes insulin should be provided but isolation of insulin and production is so costly.
but as DNA recombination has developed we can use bacterial replication system to produce insulin. they replicate very fast so large amount of insulin will be produced and then it can isolated.
but we also know that insulin of bacteria needs some modification before it can be used in human.
if want more info ask here. hope it helps.