Answer:
Without a control group, it is difficult to determine the effect of running on heart rate, as there may be other factors influencing the results. To accurately determine the effect of running on heart rate, it would be helpful to include a control group of individuals who do not run and to control for other variables that could potentially affect heart rate.
Explanation:
determine if the changes in heart rate were due to running or some other factor. A control group is a group of individuals or objects that serve as a reference point for comparison in an experiment. It helps to isolate the effect of the variable being tested (in this case, running) and helps to rule out the influence of other variables that could potentially affect the outcome.
Without a control group, it would be difficult to determine if the changes in heart rate were due solely to running or if there were other factors at play. For example, perhaps one of the students was feeling particularly anxious or stressed before running, which could have affected their heart rate. Or perhaps the room temperature or humidity were different for each student, which could also impact heart rate.
To improve the design of this experiment, it would be useful to include a control group of students who did not run at all. This would allow for a more accurate comparison of the effect of running on heart rate, as any changes in the control group could be attributed to factors other than running. It would also be helpful to control for other variables, such as room temperature and humidity, to further isolate the effect of running on heart rate.
what did Rosalind franklin discover about DNA
Which will diffuse easily in the cell membrane: Molecules that are lipids or molecules that are ionic (charged).
Answer: Molecules that are lipid soluble because the cell membrane is a phospholipid bilayer.
Explanation:
What phrase from the selection helps you understand the meaning of “composes”?
PLZZ HALP Put the following terms in order from the most specific to the broadest (1-9).....
Organelle....Organ....Macromolecule....Atom....Organism....Cell....Organ system....Molecule....Tissue
Answer:
molecule → macromolecule → organelle → cell → tissue → organ → organ system → whole organism.
Explanation:
Sides of a DNA molecule are made up of sugar molecules alternating with phosphate molecules true or false
yes the statement is absolutely correct
A. GUC
B. CGU
C. UCG
D. UGU
Answer:
A
Explanation:
it'll go GUC➡️CAG➡️GUC
hi..................
Answer:
Hi! Before I go tell me what you think of this meme I made:
Explanation:
hello free points?.......
state two features in the nephron that facilitate ultrafiltration
Answer:
The glomerulus is a knot of cappilaries inside the Bowman's capsule. ... Podocytes are cells that have 'foot-like extensions' which are wrapped around a capillary. This increases the surface area for filtration.
Explanation:
The reticular formation ________.
A) sets the rate of respiratory movements
B) contains nuclei and centers that regulate vital autonomic nervous system functions
C) relays somatic information to the ventral posterior nuclei of the thalamus
D) regulates heart rate and force of contraction, and distribution of blood flow
E) relays information from the spinal cord, the red nuclei, other midbrain centers, and the cerebral cortex to the vermis of the cerebellum
Answer:
B) contains nuclei and centers that regulate vital autonomic nervous system functions
Explanation:
The correct option is - B) contains nuclei and centers that regulate vital autonomic nervous system functions
Reason -
The reticular formation contains nuclei and centers that regulate vital autonomic nervous system functions.
2. What is made inside of bones that is carried throughout the circulatory system?
Answer:
oxygen, calcium or iron
Answer:
Bone Marrow
Explanation:
The inside of your bones is filled with a soft tissue called marrow. There are two types of bone marrow: red and yellow. Redbone marrow is where all new red blood cells, white blood cells, and platelets are made.
Why do the planets and other celestial objects in our solar system revolve around the Sun?
Answer:
The Sun's great mass and gravitational pull
Explanation:
What is the relationship between photosynthesis and respiration?
A Photosynthesis produces water, while respiration does not. .
B. Respiration requires sunlight, while photosynthesis does not.
C. Photosynthesis produces oxygen, and oxygen is required for respiration
D. Respiration produces glucose, and glucose is required for photosynthesis iser
Answer:
c.
Explanation:
That be your answer mate.
Answer:
the correct answer is c
Explanation:
Photosynthesis converts carbon dioxide and water into oxygen and glucose. Glucose is used as food by the plant and oxygen is a by-product. Cellular respiration converts oxygen and glucose into water and carbon dioxide. Water and carbon dioxide are by- products and ATP is energy that is transformed from the process.
A short true-breeding plant will always produce a short plant.
True or false
Answer: false
Explanation:
*PLEASE ANSWERR!!*
What is the second step in fieldwork for marine science?
a.) presentation
b.) analysis
c.) collection
Answer:
its b
Explanation:
I hope this help
Mmm
Beginning with the flow phase arrange biochemical process in order menstrual cycle
Answer:
1. The endometrial lining breaks down and low levels of estrogen stimulate the pituitary to release FSH and LH
2. FSH and LH stimulate the follicles to develop and the oocyte to produce estrogen.
3. Rising estrogen levels suppress FSH production and development of other follicles.
4. A spike in LH causes the follicle to rupture
5. High progesterone levels maintain the endometrial lining of the uterus.
6. A breakdown of corpus luteum causes progesterone levels to drop.
Explanation:
Answer for Plato, got it right.
When it is summer in the southern hemisphere, what season is it in the northern hemisphere
A. Fall
B. Winter
C. Spring
D. Summer
Answer:
Winter
Explanation:
Answer:
Winter
Explanation:
Just took the quiz
I NEED HELP ASAP DUE IN 10 MINUTES
The herbivores in the forest don’t consume this low-growing invasive plant because they mistake it for a similarly shaped toxic plant in the forest. The invasive plant needs a lot of room to grow. It sprouts from its seeds much earlier than the native species. What effect can its growth have on the native herbivores’ food supply?
Answer:
It could grow at such an extrem erate that it could use up all natural resources that the native species needs to survive. thus breeding out all native species and becoming a invasive species. The native species the animals eat now does not exist and the animals that needed that food will decrease drastically in populus.
Explanation:
A.Bacteria and mold
B. deer
C.grasses
D.mountain lion
Please help
Which of the following best describes a process by which metamorphic rock becomes igneous rock
A.weathering into sediments, then eroding
B.compacting under pressure and cementing
C.changing shape under heat and pressure
D.melting completely, then cooling
Select the correct answer.
Which device is using a motor?
A. a water heater creates heat energy from electric energy
B.A waterfall rotates a waterwheel to turn an axel
C. A body massager uses electric energy to move back and found
B. A solar charger creates electric energy from the sun
Describe the flow of energy to the lion using a food chain from the food web that includes a rabbit.
Answer:
10%
Explanation:
the sun gives energy to the grass (to make it easier to understand, say the sun gives 100un of energy to the plants)
from there, the rabbit eats the grass( 10% of 100 is 10, so the rabbit gets 10un of energy)
and the, a lion eats the rabbit (10% of 10 is 1, so the lion gets 1 un of energy)
every single time a predator consumes prey, it only gets 10% of what the prey gets from its prey.
Hope this helps :)
Explain the role of both biotic and abiotic factors within a nutrient cycle.
Answer:
Answer. Biotic factors are the living things in an ecosystem so they do not recycle. Abiotic factors are the different physical and chemical components available like temperature, air, water, minerals, rocks,and PH. Not ll of them are recycled.
The role of both factors within a nutrient cycle is very important because nutrients cycling through biotic and abiotic systems constantly.
Explain the role of both biotic and abiotic factors within a nutrient cycle?Plants, animals, microorganism and organic matter are the biotic locations of nutrients while on the other hand, the atmosphere, water, and soil represent the abiotic locations. Nutrients are constantly moving or cycling through biotic and abiotic systems.
So we can conclude that the role of both factors within a nutrient cycle is very important because nutrients cycling through biotic and abiotic systems constantly.
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HELP!!!! 50PTS!!!!! WILL BE MARKED BRAINLIEST!!!!
Adaptive radiation is often seen after which of the following events? (4 points)
Mass extinctions
Sexual selection
Genetic drift
Founder effect I think is A
Answer:
genetic drift I'm pretty sure
Explanation:
have an amazing day!!!!!!!
Answer:
mass extinctions
Explanation:
Which of these is NOT a reason why biodiversity is important?
a
Many species around act as a pest control.
b
There are too many animal species in the world causing competition.
c
Biodiversity loss would decrease water quality and available nutrition.
d
Biodiversity ensures food security by supplying a wide variety of plants and animal species for nutrients.
Answer:
i think the answer is d maybe
what ways do we use patterns of classification in science? give examples
Answer:
Classification is the way scientists use to categorize and organize all of life. It can help to distinguish how similar or different living organisms are to each other
Explanation:
Patterns are used in science to classify objects or phenomena into groups. There are patterns of both similarity and difference.
What is classification?Classification is the way scientists use to group and categorize objects, phenomenon or life forms. It can help to distinguish how similar or different living organisms are to each other based upon the pattern of their structure and organization.
Patterns are regular and intelligible forms , sequences, or structure that found throughout nature. Scientific questions may be generated when scientists observe a pattern of events or when something does not match an established pattern.
For example, the frozen water in an iceberg is arranged into a regular, repeating crystal structure—a pattern of similarity. Young children can observe a common pattern of difference, the differences between adult animals and their offspring.
Thus, it is clear from above explanation, the ways to use patterns of classification in science.
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If the individuals at Level IV - 1 and 2 had offspring, what do we know
could happen?
Answer:
all their kids might have the disease
Explanation:
if you do a Punnett square for the gene Xx X for female and X Y for male, then there is a 50 percent chance their kids would have the disease
A competitive inhibitor binds ___, whereas an uncompetitive inhibitor binds ___. Please choose the correct answer from the following choices, and then select the submit answer button. Answer choices only to the enzyme; only to the enzyme-substrate complex to either the enzyme or the enzyme-substrate complex; only to the enzyme-substrate complex only to the enzyme; to either the enzyme or the enzyme-substrate complex only to the enzyme-substrate complex; only to the enzyme
Answer:
Option A, only to the enzyme; only to the enzyme-substrate complex
Explanation:
In un competitive inhibition, the inhibitor binds to an allosteric site of a enzyme which is usually present at the enzymes substrate complex.
While in competitive inhibition, an inhibitor binds to the enzyme at its active site and hence restricts the substrate from binding
Hence, option A is correct
Use the Pedigree Chart to answer the following question
What does the white square represent in a Pedigree?
Answer:
A family tree
Explanation:
or a choose female or even a male
Answer:
A white square is a non-carrier/unaffected male
Explanation:
difene the meaning of the phrase entry requirements to higher education institutions and state four reasons why knowing the entry requirements is important
Answer:
1. Entry requirements to higher education are the necessary and important criteria that students intending to acquire higher education must attain before they can be granted admission.
2. Four reasons why knowing the entry requirement is important include;
a. It helps the students chose the right courses in high school.
b. It provides a standard for the universities to evaluate students objectively.
c. It ensures the admittance of students to courses suited for their capabilities and strengths.
d. It prepares students for the tasking academic environment by ensuring that they have a background knowledge of their chosen course.
Explanation:
Before students can be granted admission into schools chosen by them, they must meet certain standards to be deemed qualified by the admitting institution. Knowing these standards on time gives the students a sense of purpose and helps them to develop skills and abilities that make them qualified for admission into these schools.
It also helps the university choose the right students for different courses. Studying ahead to have the required certificates for admission helps the student gain background knowledge of their future course.
Why do the noble gases NOT form compounds readily?
Group of answer choices
They have an empty outer shell
They have a full valence shell
They have 7 valence electrons
They have no electrons
it's bc they have a full valence shell