Answers
Related Questions
A marathon runner completed a race of 26.2 miles in 3 hours and 15 minutes. What was his average speed throughout the race?
a) 7.5
b) 8.1
c) 8.7
d) 10
Answers
Answer:
b
Explanation:
The average speed of an object is the sum of the distance traveled by the object relative to the total time taken to cover the distance. In other words,
Average speed = total distance traveled/total time taken
In this case, the total distance traveled by the runner = 26.2 miles while the total time taken = 3 hours and 15 minutes
60 minutes = 1 hour
15 minutes = 0.25 hours, hence
3 hours 15 minutes = 3.25 hours
Average speed = 26.2/3.25
= 8.0615 miles/hour
= 8.1 miles/hour
The correct option is b.
What type of cells are blood cells? Click all that apply.
Answers
Answer:
The muscles cells and their body cell
What happened to food in the small intestine check all that apply
Answers
Answer:
the nutrients in the food is absorbed
Explanation:
Answer:
Explanation:
Blood in the villi helps to absorb nutrients and sugar molecules
Nutrients from food are absorbed
Fat is broken down into smaller droplets
What role does intraspecies competition play in natural selection?
A. There is competition within a species for resources, and only some individuals will survive.
B. There is competition within a species for resources, and only the single most fit individual will survive. ( ITS NOT B)
C. There is competition between species for resources, and only one species will survive.
D. There is competition between species for resources, and only one individual per species will survive. ( I don't think it's this one...)
Answers
PLEASE ANSWER THIS QUICK QUESTION!!! ASAP! WORTH A LOT OF POINTS
What do all tide pool creatures have in common?
Or: What are the main features that all tide pool creatures have in common?
Answers
Explanation:
While these small basins at the ocean's edge typically range from mere inches to a few feet deep and a few feet across, they are packed with sturdy sea life such as snails, barnacles, mussels, anemones, urchins, sea stars, crustaceans, seaweed, and small fish.
how the sun is involved with the formation of other forms of energy on Earth.
Answers
What is a component of amino acid not contained in starch
A. Amino acids contain hydrogen.
B. Amino acids contain oxygen.
C. Amino acids contain carbon.
D. Amino acids contain nitrogen.
Answers
Answer:
D. Amino acids contain nitrogen
Explanation:
...
List three ways in which a sperm cell differs from other cells in the
human body
Answers
PLSS HELP!!
1. cellular respiration produces
A. cellulose
B. oxygen
C. ATP
D. glucose
2. to produce starch, glucose molecules bond together through
A. photosynthesis
B. cellular respiration
C. dehydration synthesis
D. nucleotides
3. by which process does yeast produce the carbon dioxide responsible for bread rising?
A. photosynthesis
B. glycolysis
C. cellular respiration
D. dehydration synthesis
4. what is a component of amino acid not contained in starch?
A. amino acids contain carbon
B. amino acids contain oxygen
C. amino acids contains hydrogen
D. amino acids contain nitrogen
5. which two processes provide the glucose and nitrogen used to form amino acids in plants?
A. photosynthesis and nitrate absorption
B. cellular respiration and the citric acid cycle
C. photosynthesis and dehydration synthesis
D. glycolysis and nitrate absorption
Answers
Answer:
1. ATP
Explanation:
Cellular respiration may be defined as the chemical process of breakdown of food in the cell with the liberation of energy in the form of ATP.
Photosynthesis is a chemical process through which green plants most photosynthetic algae synthesize their own food in the form of glucose. While nitrate absorption is the process through which nitrogen in the soil is significantly absorbed by the root of plants in form of nitrates.
Fermentation is initiated with the process of glycolysis, but it does not involve the upcoming two stages of aerobic cellular respiration such as the Krebs cycle and oxidative phosphorylation.
Therefore, each of the above questions is well described above.
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3. Forces of evolution include
a. DNA mutations
b. lack of migration
c. random mating
d. a large population size
Answers
Answer:
A. DNA Mutations
Explanation:
it evolves them in ways that even random mating cannot control
Answer:
A large population size:: summary population size is the number of individuals in a population. population density is the average number of individuals per unit of area or volume. the pattern of spacing of individuals in a population may be affected by the characteristics of a species or its environment.
What threatens the existence of a chimpanzee species?
Answers
Answer:
The primary threats to chimpanzees are habitat destruction, hunting, and disease. The increasing human population is encroaching ever deeper into even protected areas of chimpanzee habitats, and large scale logging is now a major threat to the forest primates of Africa.
Explanation:
Answer:
* Habitat destruction
* Hunting
* Disease
A. Amber and evolution
B. Cast and imprint
C. Theory, cast
D. Carbon dating and radioactive isotopes
Answers
Answer:
A. Amber and evolution
4
If Jennifer wanted to grow her hair out without fear of it breaking or becoming damaged, what macromolecules should she increase in her daily diet
Answers
Answer:
I'm guessing proteins because hair is made out of keratin and keratin is a protein.
Explanation:
What substances are combined with sunlight in the process of photosynthesis?
A. carbon dioxide and water
B. water and simple sugar
C. carbon dioxide and oxygen
D. oxygen and simple sugar
Answers
Answer:
A. carbon dioxide and water
1. List the producers in this food web.
2.List the primary consumers in this food web.
3. List three secondary consumers.
4. List three tertiary consumers.
5. List two quaternary consumers.
Answers
2. The primary consumers are the giraffe, rhino, bug, mouse, and deer.
3. Three secondary consumers are the bird, fox, and monkey.
4. Three tertiary consumers the skunk and whatever that thing is between the monkey and fox (the image is blurry).
5. Two quaternary consumers are the vulture and the monkey.
Which of the following statements is true regarding electromagnetism?
All wires are electromagnetic.
Only wires carrying current are electromagnetic.
Only iron wires are electromagnetic.
Only copper wires are electromagnetic.
Answers
Answer:
Only iron wires are electromagnetic.
brainllst
Read the excerpt from "Bone Detective," by Lorraine Jean Hopping. While the dentist worked on the tiger’s teeth, Diane made an alginate impression of one of its huge paws. Then, the dentist used two cupped hands to pull the tongue out of the big cat’s mouth. The heavily muscled organ was almost as long as her foot. With the dentist still holding the tiger tongue in both hands, Diane quickly went to work. The pink surface was rough, like sandpaper, but floppy and wet. She coated the top with alginate and waited for it to set. Her 15 minutes were almost up. The tiger, so calm and soft, would soon wake up and be dangerous again. Slowly and carefully, Diane peeled off the soft impression to avoid tearing it. Based on this excerpt, what is the author’s attitude toward Diane France? The author feels Diane is rough and impatient in her work with the tiger. The author feels Diane is skillful and careful in her work with the tiger. The author feels Diane is anxious and distracted in her work with the tiger. The author feels Diane is light-hearted and humorous in her work with the tiger.
Answers
Answer:
2nd oneㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤ
it says carefully she helps the tigerㅤㅤㅤ
Answer:
The answer is B. The author feels Diane is skillful and careful in her work with the tiger.
Explanation:
took the test on edge
I NEED THE ANSWER ASAP
which particles do plants absorb to obtain energy?  a. photons  b. electrons  c. atoms  d. molecules
Answers
Answ
i think its a
Explanation:
Answer:
It's a. photons(light energy)
HURRY IM ON TIMER
Which statement describes the blood type of a person with the alleles IAi?
It is type AB because I and i are codominant.
It is type AB because A and i are codominant.
It is type A because i is dominant and A is recessive.
It is type A because A is dominant and i is recessive.
Answers
Answer:
C
Explanation:
Why does calcium concentration matter to a cell?
Answers
Answer:
HOPE IT MAY HELP YOU
Explanation:
Calcium-based signaling is used in many cellular and neuronal processes to initiate rapid responses to extracellular signals. Cells therefore maintain tight control over intracellular Ca2+ levels, using a variety of channels and pumps.
Answer:
to answer your question it is
Explanation:
Calcium-based signaling is used in many cellular and neuronal processes to initiate rapid responses to extracellular signals. Cells therefore maintain tight control over intracellular Ca2+ levels, using a variety of channels and pumps. ... neuron
how does the structure of fructose compare to the structure of glucose
Answers
Answer:
Glucose is an aldose and fructose is a ketose sugar.
Explanation:
They are isomers and they are both ketose sugars that are important building blocks for other sugars.
Glucose is an aldose and fructose is a ketose sugar.
what are the difference between glucose and fructose ?glucose is a monosaccharide present in all major carbohydrates like starch, table sugar etc. It is the primary and preferred energy source of the body. Starch contains glucose.
It is also called as blood sugar or grape sugar which is a six-membered ring, form pyranose ring structure, is an aldohexose.
fructose is a monosaccharide, present in vegetables and fruits where The glycemic index is lower in fructose when compared to glucose.
The binding of fructose to protein in cell is seven times faster than glucose.
fructose are called as fruit sugar or D- fructose. Its functional group is the ketone, metabolized mainly in the liver. It is not found in starch.
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Please help me need this before 8:00am
The questuon is in the picture
Answers
Answer:
I think the answer is D.
Explanation:
I think this because I just did the Periodic Table in school, also they are group by the same color by physical and chemical properties.
A red blood cell would burst if placed in a(n) ___ solution with no cell wall.
A. Isotonic
B. Hypertonic
C. Hypotonic
Please help! 10 points
Answers
Answer:B
Explanation:
Can someone help me with this question pls (8th grade science)
Answers
Answer:
C
Explanation:
The exerpt states that movements in the Earth's crust (unbalance) causes Earthquakes. When it's balanced, there is no plate movement.
Answer: c
Explanation: if there is no plate movement that means that there is a balanced force there is nothing that is disrupting it. but if there's an earthquake in that means that there are unbalanced forces in that they cause an earthquake. a force is balanced if the two individual forces are of equal magnitude and of the opposite direction. And an object is said to be acted upon by an unbalanced force when there is an individual force that is not being balanced by a force of equal magnitude and in the opposite direction.
FUN FACT OF THE DAY (day:4)
A baby fox is called a kit
A baby alligator is called a hatchling
A baby armadillo is called a pup
A baby fish is called a fry or fingerling
Answers
Answer:
lol wow
Explanation:
A baby alligator is called a hatchling
Which career combines DNA technology and forensics? pharmaceuticals paternity testing environmental studies genetics
Answers
Answer:
B. Paternity
Explanation:
Edge 2020
The career that combines DNA technology and forensics is paternity testing. The correct option is B.
What is paternity testing?DNA testing examines an individual's DNA banding patterns to determine the identity or mutations of a specific gene.
Paternity testing is a type of DNA testing that is used to determine paternity and the true nature of a relationship.
The lab compares tissue samples from the mother, the child, and the man to determine what unique characteristics known as genetic markers the child shares with the mother and the man who may be the father.
The chromosomes that determine the gender of the baby (X and Y chromosomes). The mother's egg typically contributes an X chromosome, while the father's sperm contributes either an X or a Y chromosome.
These tests are extremely accurate in determining whether a man is the biological father of a child.
Thus, the correct option is B.
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Help me I need help pls
It’s question 3
Answers
A gene is a unit of heredity which is transferred from a parent to offspring and is held to determine some characteristic of the offspring.
please help, anything will do! thank you! I have provided eveyrhtign and did the lab (procedures).
Answers
And the human and the cat are the most similar because they are almost identical to each other from the bottom up
You can conclude that the one that were alike were related in some type of way
Help please this is my last question it’s question 4
Answers
Help please this is my last question it’s question 4
Answer:
C. Allele
Need help ASAP
The Crust of the earth is mostly made of.......
a.Fe and Ni
b. Silica
c. Magnesium
d. Aluminum
Answers
Answer:
b. silica
Explanation:
!!
Explanation:
A crust is the outermost layer of a planet. The crust of the Earth is composed of a great variety of igneous, metamorphic, and sedimentary rocks. The crust is underlain by the mantle. The upper part of the mantle is composed mostly of peridotite, a rock denser than rocks common in the overlying crust.