Janet wants to see whether drinking coffee will improve productivity. What is the independent variable in this experiment (cause)?
A. the time drinking the coffee
B. increase productivity
C. drinking coffee or not
D. the brand of coffee
Help Me Pls ASAP
Which of the following statements below are TRUE about Keystone Species?
Question 4 options:
If keystone species are removed, it can destroy the balance of the ecosystem.
There can be more than one keystone species within an ecosystem.
Keystone species have very little importance to the balance of an ecosystem.
One example of keystone species in the ecosystems stem case food web are bees because they pollinate the plants.
Answer:
the answer will be the first option
Help me, my brain's under a rock and due in 5 minutes, late work
What type of rock is pictured here?
Someone do this for me
Answer:
wow
Explanation:
Make a claim about how the complexity of fossils in the fossil record can provide clues to the relative ages of rock units.
Answer:
about the geologic history of Earth. How do fossils provide important clues to environmental changes that occurred in earths past?
revealing the ways that organisms have changed throughout the geologic past. ... to learn about how environmental changes have affected living organisms.
Explanation:
i hope it's right..
What happens when the thermal energy of a substance increases?
The motion of the particles in the substance increases, and the temperature of the substance decreases.
The motion of the particles in the substance decreases, and the temperature of the substance increases.
Both the motion of the particles in the substance and the temperature of the substance decrease.
Both the motion of the particles in the substance and the temperature of the substance increase.
Answer:
Both the motion of the particles in the substance and the temperature of the substance decrease.
Explanation:
The hotter the substance the more kinetic energy the particles gain which can result in more collisions in the substance.
Matias wanted to see if his dog would lose weight if he took the dog for a walk twice a day instead of just once a day. What is the dependent variable in this situation?
A. How fast they walked
B. The dog's weight
C. The breed of dog
D. How many times they go for a walk each day
Answer:
this answer is D because it's independent variable
list and briefly explain all the amendment that expanded voting rights
Study the image of the roller coaster, then answer the questions. Note that the arrows indicate the direction of the movement of the roller coaster train.
Which section (A or B) of the roller coaster shows positive acceleration?
_______
Which section (A or B) of the roller coaster shows negative acceleration?
_______
Answer:
Which section (A or B) of the roller coaster shows positive acceleration?
answer is: A
Which section (A or B) of the roller coaster shows negative acceleration?
answer is: B
Explanation:
Answer:
first A, second one is B
Explanation:
To conduct a proper experiment, how many independent variables should be tested at a time in a controlled experiment to get a reliable result?
Answer:
One independent variable although I'm not sure so i suggest waiting for another answer.
Answer: Scientific questions are those questions that can be answered through observation of world around us and by experimentation.
Explanation:
The scientific questions related to the earth and the space science are as follows:
1. How the celestial bodies like moon, sun, and others affect the functioning of the earth?
2. How earth is different from other planets in the space?
3. What is the distance covered by the earth from other celestial bodies including other planets in the solar system?
4. How asteroids and meteors affect the earth?
5. Why different regions of the earth receive different intensities of light from the sun?
Explanation:
Ans1:-)Gravity is the force that connects every object - planet, the Sun, moons, asteriods, comets - to every other object. The Earth is constantly being tugged by all the other bodies in the solar system. Except for the Sun and the Moon, most bodies are either too small or too
Ans2:-)Earth is one special planet. It has liquid water, plate tectonics, and an atmosphere that shelters it from the worst of the sun's rays. But many scientists agree our planet's most special feature might just be us. ... The fact that Earth hosts not just life, but intelligent life, makes it doubly unique
Ans3:-)For objects within the solar system, distances are calculated from their orbital parameters and are center to center distances. For objects outside of the solar system, those objects are so far away that there is no discernable difference between the center to center distance and the surface to surface distance.
Ans4:-)Such collisions could have caused the larger bodies to be broken up into the smaller objects we observe as meteorites. Much evidence suggests that the asteroids could be the parent bodies of meteorites.
Ans5:-)Because of the Earth's tilt the sun's rays strike the surface at a slant at the poles; they are less focused. ... The tilt of the Earth causes different areas to receive different amounts of solar energy. The difference in solar energy received at different latitudes drives atmospheric circulation.
mark as brainlist pls followwrite a one to two-page writing including citations and the following information:
The function of each organelle in the cell: nucleus, cell membrane, cytoplasm, mitochondria, vacuole, ribosomes, lysosomes, chloroplast, and cell wall
Explain how the parts of a cell act like a city.
Explain how the cell you picked (plant or animal) is different and alike from the cell you didn’t pick (plant or animal)
Explain cellular respiration and photosynthesis
Explain what a eukaryotic and a prokaryotic organism is
Compare and contrast eukaryotic and prokaryotic organisms
Answer:
2 page? Nah. You need at LEAST 500 for 2 pages. But I can help you out. Gimme about an hour, I'll have a paragraph for you to start with. Promise.
Explanation:
is it
A. True
B. False
someone help me please!
Answer:
its not clear please add a clear photo so that i can help
Explanation:
Vocabulary Check
12. The word determine is part of the term ___________, which is the process a stem cell goes through when it becomes committed to developing into only one cell type.
13. The word different is part of the term ___________, which is the process a stem cell goes through as it becomes a specialized cell.
Answer:
1. determination
2. differentiation
Explanation:
heres the answer key for that study guide in case anyone needs it:
https://thescienceofpayne.weebly.com/uploads/1/2/6/7/12673100/hssb2800t_studygda.pdf
i also wrote the answer key below:
section 1:
1. zygote
2. specialized
3. embryonic stem cells
4. determination
5. differentiation
6. apoptosis
7. cells
8. groups of similar cells that work together to
perform a specialized function
9. sample answer: lungs, stomach, kidneys
10. organ systems
11. sample answer: human body
12. determination
13. differentiation
section 2:
1. homeostasis
2. sensors
3. control center
4. communication systems
5. targets
6. target
7. a: negative; b: positive
8. negative
9. positive
10. feedback
11. homeostasis
section 3:
1. organs
2. skin
3. liver
4. kidneys
5. calcium, phosphorus
6. hypothalamus
7. short-term
8. cold virus
9. long-term
10. diabetes
11. long, short
12. thermoregulation
Answer:
1. determination
2. differentiation
Name waterborne and airborne diseases.Distinguish them in 8 to 10 points.What are the precautionary methods to prevent these diseases?
Answer:
waterborne diseases:cholera, diarrhea, typhoid, amebiasis, hepatitis, gastroenteritis, giardiasis,
airborne diseases:
difference:Airborne diseases are spread when droplets of pathogens are expelled into the air due to coughing, sneezing or talking. Water-borne disease is any disease that is caused by pathogenic microorganisms and most commonly transmitted through contact or consumption of infected water.
HOW TO PREVENT AIRBORNE DISEASES:Avoid close contact with people who have active symptoms of disease.
Stay home when you're sick. .
If you must be around others, wear a face mask to prevent spreading or breathing in germs.
Cover your mouth when you cough or sneeze.
HOW TO PREVENT WATERBORNE DISEASES:Drink only filtered/boiled water.
Store water in a clean container,
Water jars/containers should be washed daily.
Always wash hands before and after preparing food or eating, likewise, children should be taught on hand washing.
P.S. hv a wonderful weekend!
A factors or conditions within an experiment that is kept the same is called the
Question 1 options:
dependent variable
the hypothesis
independent variable
control variableA factors or conditions within an experiment that is kept the same is called the
Question 1 options:
dependent variable
the hypothesis
independent variable
control variable
Answer:
A factors or conditions within an experiment that is kept the same is called the=Control variable
Write a hypothesis about the effect of dry conditions on earthworm behavior. Use the "if . . . then . . . because . . .” format, and be sure to answer the lesson question, "How is earthworm behavior affected by external stimuli?”
Answer:
If the earthworm external stimuli is affected, then the behavior would change because earthworms react negatively to odors.
What is one characteristic that all living things and only living things have in common?
Please help I don't understand
Answer:
The wolf is the secondary comsumer
Explanation:
Secondary consumers are largely comprised of carnivores that feed on the primary consumers or herbivores. Other members of this group are omnivores that not only feed on primary consumers but also on producers or autotrophs. An example is a fox eating rabbit..
Answer:
I would say wolf
Explanation:
someone plss help me {no links please} i barely have any points so please only answer if you know
Answer:
1. zygote
2. specialized.
3. embryonic stem cells
4. determination
5. differentaition
6. apoptosis
Explanation:
........
The ability of an animal to maintain a stable internal environment is called
.
Answer: Homeostasis
Homeostasis is the way animals maintain a stable internal balance in their body. It allows animals to function in the changing external conditions surrounding their body. Homeostasis is important to Chinook salmon because they depend on the functioning of its cells to help its survival and ability to reproduce.
Explanation:
Answer:
Homeostasis
Explanation:
Is the way animals maintain a stable internal balance in their body. It allows animals to function in the changing external conditions surrounding their body.
is it
A.True
B. False
Please help me with this, I marked it Biology because science wasnt on there
Answer:
...
Explanation:
Her displacement can be found through [tex]a^{2} +b^{2} =c^{2}[/tex]
Her displacement will be 11.66m 2dp
The distance she walked will however be a+b
Her walked distance is 16m
MAIN IDEA: CARBON ATOMS HAVE UNIQUE BONDING PROPERTIES.
Choose whether the statement is true or false.
1. true / false Carbon atoms form the building blocks of most living things.
2. true / false Carbon’s outer energy level is full.
3. true / false Carbon atoms can form covalent bonds with up to four other atoms.
4. true / false The three basic structures of carbon-based molecules are straight chain, bent chain, and ring.
i am not sure
true/false/true/true
1. Carbon atoms form the building blocks of most living things.
Answer: True
2. Carbon’s outer energy level is full.
Answer: False
3.) Carbon atoms can form covalent bonds with up to four other atoms.
Answer: True
4.) The three basic structures of carbon-based molecules are straight chain, bent chain, and ring.
Answer: True
Answers: True/ False/ True/ True
Which best compares the temperatures of the substances?
Substance X has the highest temperature because its particles have more kinetic energy.
Substance X has the highest temperature because it has fewer particles.
Substance Y has the highest temperature because its particles have more kinetic energy.
Substance Y has the highest temperature because it has more particles.
Answer:
A.
Substance X has the highest temperature because its particles have more kinetic energy.
Answer:
The correct answer is: A. Substance X has the highest temperature because its particles have more kinetic energy.
Explanation:
What is an inference?
A. A prediction of test results before an experiment
B. A retest of experimental results to make them reliable
C. Background research completed with questioning
D. A conclusion derived from evidence and logical reasoning
Answer:
a
Explanation: