A cross country runner runs 8 km in 2 minutes. What is his speed?
The speed of the cross country runner is equal to 4 km/min.
Given the following data:
Distance = 8 km.Time = 2 minutes.To determine the speed of the cross country runner:
Speed can be defined as the distance covered by an individual per unit time and it can be measured in kilometer per minutes (km/min).
Mathematically, speed is given by the formula;
[tex]Speed = \frac{distance}{time}[/tex]
Substituting the given parameters into the formula, we have;
[tex]Speed = \frac{8}{2}[/tex]
Speed = 4 km/min.
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what virus cycle causes immediate infection
Answer:
the lysogenic cycle does not result in immediate lysing of the host cell
Plz help quickly I’ll mark
Answer:
Carbon Monoxide
Explanation:
I just took the test :)
which explanations accurately describe how cell structures interact in order to maintain homeostasis? select all that apply.
Answer:
Maintaining homeostasis requires that the body continuously monitors its internal conditions. From body temperature to blood pressure to levels of certain nutrients, each physiological condition has a particular set point. A set point is the physiological value around which the normal range fluctuates.
Explanation:
What do we call it when trees and
crops are interplanted?
A. industrial agriculture
B. terracing
C. irrigation
D. agroforestry
Answer:
D. agroforestry
a common fruit fly has eight chromosomes in a normal body cell. after a cell undergoes mitosis, how many chromosomes will each new cell have?
Answer:
Each daughter cell will have 8 chromosomes. That is correct. By the end of mitosis, there are two daughter cells. Each daughter cell will have the same amount of genetic material as the parent 8 chromosomes.
Explanation:
Hope this helps helps
plant cell don't burst when placed in water because?
Answer:
it absorbs the water
Explanation:
The color of a certain fish is a CO dominant characteristic a blue fish and a yellow fish reproduced together what color are the baby fish?
what would the color of the fish be?
please help!
How do you think astronomers group planets?
Answer:
They group them biased off of similar traits and there orbital paths.
Explanation:
I hope this helped ^ ^
How does a forest fire impact a population of birds that nest in the trees.
Answer:
If a forest fire occurs it will impact a population of birds that nest in those trees because their habitat will be burnt down. This will provoke the birds to find a new habitat which can be hard if the entire forest is burnt down. Additionally resources such as food will be burned down as well.
how would deforestation affect the level of carbon in the atmosphere ? explain using scientific reasoning
When forests are cut down, much of that stored carbon is released into the atmosphere again as CO2.
how long can you keep a fresh turkey in the refrigerator?
2 days in the fridge
Monarch butterflies have brightly colored orange wings with black patterns on them, making them easily visible to birds that eat butterflies and moths, yet birds rarely eat the monarchs. Likewise, the monarch caterpillars are brightly striped yellow and white and black, and they also are rarely eaten by birds, although some wasps will attack them and feed them to their young. What can be inferred from these observations?
A. Monarchs must threaten and attack birds, but not wasps.
B. Monarchs have a way of discouraging bird predation that does not involve hiding.
C. Monarchs' wings are so colorful that most birds must find them difficult to eat.
D. Monarchs lay more eggs than other less conspicuous butterflies.
Answer: it would be B or C but i think its B
Explanation:
Leaves appear green because the green portion of the light that strikes them out is
Answer:
reflected
Explanation:
Whatever color your eye sees is the reflected light. So all colors absorbed.
who was the first person to study the embryos of different species
Answer:
Aristotle
Explanation:
Aristotle was the first person to study the embryos of different species.
cells in your reproductive organs(ovaries and testes)that develop into eggs or sperm
germ cells
body cells
somatic cells
meiosis
Answer:
Somatic cells or meiosis
Explanation:
Determine the two most important skills a synthetic
biologist will need in order to make themselves a more marketable employee. In
what ways can they use these skills to improve society? Give an example of what
this could look like.
A synthetic biologist must be ingenious in creating new systems that will benefit the society.
A synthetic biologist is a scientist whose responsibility it is to create new biological systems and devices for various applications. These systems can be very useful in solving novel biological problems.
For a synthetic biologists to be more marketable as an employee, the synthetic biologist must be ingenious in creating new systems that will benefit the society. This skill is relevant, not only to land a new job but to make the society a better place.
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3. Hydrogen peroxide is used as an antiseptic to kill bacteria in cuts and abrasions. Many of these are catalase positive, yet they are still killed by the actions of hydrogen peroxide. Why does this occur
Answer: Hydrogen peroxide is used as an antiseptic to kill bacteria in cuts and abrasions. Many of these bacteria are catalase positive,
Explanation: that’s it
How are identical twins different than fraternal twins (explain by discussing sperm and egg)?
how did the invention of the microscope contribute to our understanding of the cells?
Answer:
With the development and improvement of the light microscope, the theory created by Sir Robert Hooke that organisms would be made of cells was confirmed as scientist were able to actually see cells in tissues placed under the microscope.
Explanation:
Organ system:Put the following in order from smallest to largest:
Cells
Organs
Tissues
Cells, tissues, organs
Answer:
Cell, Tissue, Organ
Explanation:
what are all the decomposers in the ocean?
Answer:
crustaceans and mollusks, bacteria, fungi, sea cucumbers, starfish, sea urchins, and other kinds of marine worms.
Explanation:
in _________, enzymes cut DNA into fragments, which are separated by size to form a pattern of bands.
a. selective breeding
b. cloning
c. dna fingerprinting
d. protein synthesis
The Chromosomes separate & move AWAY
from each other towards the POLES of
the cell during:
Cytokinesis
Telophase
Anaphase
Prophase
Metaphase
Please answer I’d appreciate it a lot
Answer:
These phases are prophase, prometaphase, metaphase, anaphase, and telophase.
Explanation:
Answer:
Anaphase
Explanation:
Anaphase is when the sister chromosomes seperate towards the poles of the spindle.
Augustine is writing an essay on stem cells. Help him by completing the sentences. Stem cells have the ability to divide and produce unspecified cells. They can be developed into a required tissue because of their ability of.
Stem cells can be developed into a required tissue because of their ability of cellular DIFFERENTIATION. These cells can develop specialized cells.
Stem cells are cells that can develop into specialized types of cells in order to perform specific functions.
The process of cellular differentiation from stem cells involves differential gene expression patterns, a cellular process that leads to the development of distinct types of cells.
For example, hematopoietic stem cells express specific genes (e.g., the hemoglobin gene) in order to differentiate into mature red blood cells that function to trasnport oxygen to all body cells.
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in all organisms, certain genes are expressed at any given time while other genes are not. both prokaryotes and eukaryotes regulate gene expression at the transcription stage. however, the greater complexity of eukaryotic cells makes it possible for gene expression to be regulated at many other stages as well. the diagram below shows different stages at which gene expression may be regulated in eukaryotes.
Answer:
The process of turning genes on and off is known as gene regulation. Gene regulation is an important part of normal development. Genes are turned on and off in different patterns during development to make a brain cell look and act different from a liver cell or a muscle cell, for examp
Which is a part of the process of speciation?
A. Increased gene flow
B. Interbreeding between species
C. Fixing alleles
D. Divergence
According to the research, divergence is a part of the process of speciation.
What is divergence?It is the process of speciation in which two closely related species evolve by changing a common ancestral structure in different ways.
In other words, starting from an ancestral structure, different species evolved by adapting to their environment and their needs.
Therefore, we can conclude that according to the research, divergence is a part of the process of speciation.
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what processes in your cells produce the co2 that you exhale?
Answer:
Co2 is released from the pyruvate that is formed during glycolysis, and CO2 is also released during the citric acid cycle.
Explanation:
Cellular respiration in mitochondria produces [tex]CO_2[/tex] as a waste product, exhaled during breathing.
Cellular respiration occurs mostly in mitochondria. During cellular respiration, glucose and other nutrients are broken down to make ATP. This procedure produces [tex]CO_2[/tex]. [tex]CO_2[/tex] from mitochondria diffuses into the circulation.
Breathing exchanges [tex]CO_2[/tex] for oxygen in the lungs from the circulation. Your body releases [tex]CO_2[/tex] when you exhale. This important cycle eliminates unwanted [tex]CO_2[/tex] and supplies cells with oxygen for respiration and energy generation.
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what happens when a vacuole releases its store of water?
Which of the following is NOT a human-caused reason that species go extinct?
a forest fire caused by lightning, which destroys a habitat
bringing in invasive species
cutting down a forest, which destroys a habitat
overhunting