Answer:
Two elements
Explanation:
Nitrogen and Oxygen only, (NO)
During one year, seven coyotes in a population die. Eight immigrate into the population, but none emigrate. If the overall population growth is 13 coyotes, what was the birth rate of coyotes during the year? 35 points
Answer:
12
Explanation:
Jenna took an open bowl of leftover mashed potatoes from the refrigerator and noticed a difference in smell. She determined that chemical changes occurred since the potatoes were first placed there. Which observations most likely led to Jenna’s conclusion? a change of odor a decrease in temperature a change in moisture content a decrease in mass
Answer:
its a on ed
Explanation:
The observation that most likely led to Jenna’s conclusion is a change of odor. Thus, the correct option is A.
What are Chemical changes?Chemical changes may be defined as those changes through which one chemical substance gets transformed into another chemical substance. This occurs in a variety of steps and types.
A difference in the smell of leftover mashed potatoes indicates the change in odor which is observed by Jenna.
A decrease in temperature, a change in moisture, and a decrease in mass do not make any sense with respect to difference in smell.
Therefore, the observation that most likely led to Jenna’s conclusion is a change of odor. Thus, the correct option is A.
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Nicholas has been biting his nails since he was a kid. He wants to break the habit so he puts bitter-tasting nail polish on his left hand and leaves his right hand without polish. After 3 days he notices his nails on his left hand have grown but he continued to bite his right-hand nails.
A. Independent Variable=
B. Dependent Variable=
C. Control=
Answer:
Independent: Putting the nail polish
Dependent: nail growth
Control: right hand, without polish
The experiments are known to have various variables. In Nicholas's case, nail polish is an independent variable, nail growth is a dependent, and right nails without polish are a control.
What are independent variables?Independent variables are defined as the test variables that in an experiment are not constant but are kept varied and manipulative causing various effects on the result of the hypothesis. Putting the bitter nail polish on the nails of the left hand is a test variable.
The dependent variable (outcome variables) along with independent results in cause and effect and are conditional on the independent factors. The length of nails is dependent as it is affected by the nail-biting.
On the other hand, the control variables are constant in that the factors are limited so that they do not interfere with other factors that affect the outcome. Fingernails on the right hand with no polish are controlled.
Therefore, nail polish is an independent variable.
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5. If the lever arm is longer than the load arm, this lever system would be
a class three lever system
b. a high speed system
c. a power system
d. disfunctional and is never seen in biological systems.
Answer:
B
Explanation:
nose pienso q es eza
Which is a difference between proteins and carbohydrates and fats?
In biological molecules, carbon,nitrogen, oxygen often form covalent bonds with hydrogen.Arrange these Bonds from most polar to least polar: C-H, N-H,O-H
Answer:
The order of polarity from most polar to least polar is as follows:
O-H > N-H > C-H
Explanation:
The polarity of a substance is a function of the charges of the ionic elements that makes up the substance. A bond between two ions is considered polar if it is between a negatively charged and positively charged ions. Hence, the stronger the charges of the ions in the bond, the more the polarity.
In this question, hydrogen is said to form covalent bonds with carbon, oxygen and nitrogen in biological molecules. However, the covalent bonds formed will not possess the same degree of polarity.
The bond between oxygen and hydrogen (O-H) is considered most polar amongst these three because OXYGEN atom is the most electronegative among the three ions. Hence, it will pull more electrons to itself and make the hydrogen ion more electropositive. This is followed by the bond between nitrogen and hydrogen (N-H) because nitrogen is more electronegative than carbon. The least polar is the bond between carbon and hydrogen as carbon is the least electronegative, hence, will not be able to pull electrons from hydrogen effectively.
The order from most polar to least polar is: O-H > N-H > C-H
What are the different sizes of carbohydrates
Cellulose, starch, glycogen, and most sugars
When heating substances in a test tube, always
Answer:
point the open end of the tube away from all the people.
Aristarchus believed in the Sun-Centered Universe
O True
O False
Answer:
Its True ,
Explanation:
QUESTION 1 to the lungs The spinal cord is a. anterior b. proximal c. posterior O d. distal
Answer:
Anterior
Explanation:
I googled it your welcome
________ is not required for anaerobic respiration.
The _____ sits below the stage and varies the field for viewing the specimen.
Answer:
Diaphragm
Explanation:
This is also referred to as the iris.it is located under the stage of the microscope. It's main role is to control the quantity of light that gets to the specimen. The diaphragm is adjustable. Each if the 5 holes in the disc have varying diameter. And it is helpful for adjusting contrast and resolution as regarding the specimen
Heidi is a chocolate lover and eats chocolate daily. She has a bad break-out and her friend told her eating chocolate causes pimples. Heidi continues to eat chocolate every day for 2 weeks and counts the number of pimples she has on her face. The following 2 weeks she doesn't eat any chocolate and counts the number of pimples on her face
A. Independent Variable=
B. Dependent Variable=
C. Control=
Answer:
Independent variable
Explanation:
Because the pimples depends on the body hormones, and not just chocolate
What are the two ways to deal with pollution, and which is more effective?
Answer:
Reduce the number of trips you take in your car.
Reduce or eliminate fireplace and wood stove use.
Avoid burning leaves, trash, and other materials.
Avoid using gas-powered lawn and garden equipment.
Explanation:
It depends on you're opinion honestly but i hope it helps!
Where are there typically more ecological hotspots?
Answer:
There are currently 36 recognized biodiversity hotspots. These are Earth's most biologically rich—yet threatened—terrestrial regions. To qualify as a biodiversity hotspot, an area must meet two strict criteria: Contain at least 1,500 species of vascular plants found nowhere else on Earth (known as "endemic" species). The Andes Mountains Tropical Hotspot is the world's most diverse hotspot. About one-sixth of all plant species in the world live in this region. The New Zealand archipelago is another hotspot.
Explanation:
what is a sum of people's skills, abilities, health and motivation?
Answer:
I think you are looking for the term Human Capital
Answer:Term. Human Capital. Definition. Sum of people's skills, abilities, health, knowledge and motivation.
Explanation:
what biomolecule is part of the structure of ATP,nucleotides,and nucleic acids?
Pt3 can you all help me
v. Why are mosses not found in places of little rainfall
Driving from Maine to Florida, you observe that squirrels living in the southeastern United States are much thinner than squirrels living in the northeastern part of the country. You tell your friend that you have a theory that squirrels living in the northeast have greater fat reserves for the winter months when food is scarce. Which of the statements are true? Select all that apply.
Answer:
See the options and the answer below
Explanation:
The available options to the question are:
Your statement is a valid scientific theory. Your statement uses the word "theory" in a non-scientific, colloquial way. Your statement is a hypothesis rather than a scientific theory. Your statement is not a theory but a fact.The correct answer would be that:
the statement uses the word 'theory' in a non-scientific, colloquial way. the statement is a hypothesis rather than a scientific theory.A hypothesis is a generalized statement with little or no experimental test. When a hypothesis is tested using a suitable experiment (s), it can either become valid or invalid. In order words, hypotheses are falsifiable. A theory on the other hand is a hypothesis that has been tested several times by independent researchers and found to be true.
In the illustration, the statement made concerning the squirrels is based purely on guess and not on fact. The use of the word 'theory' in the statement is totally unscientific. Only suitable experiments can prove or disprove the statement.
The correct options are 2 and 3.
The Metric System is based on the 10's number system.
Answer:
compose bold ,clear , mistake-free writing whit grammarly's Al-pwered writing assistant.
Help due tomorrow!!
Answer:
6(carbon dioxide) + 6(water) --> Glucose + 6(oxygen gas)
The following equation is balanced.
Both have 6 carbon atoms,
both have 12 hydrogen atoms,
and both have 18 oxygen atoms.
Lactic acid is a byproduct of aerobic respiration.
True
O False
Answer:
True
Explanation:
that's what can build up in your muscles that cause cramps and that is when you don't get enough air going quickly enough around your body.
Answer: false
Explanation: edg 2021
Scientific theories can change over time as new information is discovered. If a scientific theory changes, does this mean that it was not a good theory to begin with?
Answer:
The explanation of a phenomenon is called a scientific theory. It is a misconception that theories turn into laws with enough research
How does genetic variation within a species increase the chance of survival in a species in a changing environment? explain and provide an example
Hummingbirds are an example of a _____ because of the pollination they provide.
Answer:
The correct answer is "pollinator".
Explanation:
Insects are the first animals that come to mind when we think about pollinators, however hummingbirds are an excellent example of pollinators as well. Hummingbirds feed frequently from flowers, transferring grains of pollens from a flower to others. Some species of flowers have adapted to develop some traits to attract hummingbirds, such as certain color, shape and scent.
which is the final event that occurs when a star is forming
Answer:
Nuclear fusion begins under high pressure.
Explanation:
Answer:
D
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For something to be considered living, it must be composed of at least one what?
Answer:
[tex]\boxed {\tt Cell}[/tex]
Explanation:
There are many characteristics of life, including, cells. A cell is a tiny unit of life that carries out many different processes.
If something is considered living, it must have at least one cell, but it can have more. For example, bacteria is unicellular and living. We (humans) are also living, but made of billions of cells.
Therefore, for something to be considered living, it must be composed of at least one cell.
What is the importance of life processes in the human body?
Answer:
life processes is importance to carry out daily life activities.they help to produce energy and maintain homeostasis in the body
3. Label the three planes in the following image next to the three corresponding letters below the image.
CI
a)
hlwhos on this Imao ??
Answer:
The correct labels of the three planes are -
a. axial or transverse plane.
b. sagittal plane
c.. coronal plane
Explanation:
The human body can be divided into three planes on the basis of anatomy - the sagittal plane, the coronal plane, and the transverse plane
A sagittal plane is a longitudinal plane that divides the human body in the left and right parts.
A coronal plane is an anatomical plane that divides the body vertically into the back and front, ventral or dorsal (to be more specific).
An Axial or transverse plane, it is the plane that divides in the upper part of the body and lower part of the body.
Thus, the correct answer is -
a. axial or transverse plane.
b. sagittal plane
c. coronal plane