Heather and Matthew take 60 sec to walk eastward along a straight road to a store 90 m away. What was their speed?
Answer:
1.5m/s
Explanation:
Using the formula;
Speed (m/s) = distance (metres) ÷ time (seconds)
According to the information provided in this question, Heather and Matthew spend 60seconds to travel a distance of 90 metres. This means that t = 60s, d = 90m
Hence,
Speed = 90/60
Speed = 3/2
Speed = 1.5m/s.
example of aquatic plants
Answer:
lotus
is an example of a aquatic plant
PLEASE HELP NOW ASAP!! IF CORRECT I WILL GIVE BRAINLIEST!!!!
Mutagenic agents are substances that
1) have no effect upon the rate of gene mutations
2) cause gene mutations but not other chromosomal changes
3) decrease the rate of gene mutations
4) increase the rate of gene mutations
Which of the following best depicts energy flow in an ecosystem?
food web
a diagram drawn out in the dirt. Wait that's a pickup football play: Billy you go long Bobby cut in at the fire storage shed...
food chains and food webs equally depict energy flow in an ecosystem
food chain
nutrient cycle
The
of the cell direcs cell activity and ads like the control center.
Answer:
unable to understand ur question,,,
Explanation:
sry dear!
Answer:
The nucleolus✔ of the cell directs cell activity and acts like the control center.
Explanation:
Hope this helps you :D
During transcription
Answer:
mRNA is “messenger” RNA. ... The process of making mRNA from DNA is called transcription, and it occurs in the nucleus. The mRNA directs the synthesis of proteins, which occurs in the cytoplasm. mRNA formed in the nucleus is transported out of the nucleus and into the cytoplasm where it attaches to the ribosomes.
Pls, help me I have a test today :(
Answer:
Frameshift mutation
Explanation:
i think that is the answer
Genes contain specific instructions for how to make(1 point)
carbon.
nucleotides.
gametes.
proteins.
Epigenetic changes are generally(1 point)
not heritable changes in gene structure of a population.
not heritable genetic changes that are specific to an individual.
heritable genetic changes that are due to environmental factors.
heritable changes in gene frequency of a population.
Meiosis produces(1 point)
hydrogen molecules.
skin cells.
DNA molecules.
gamete cells.
Which environmental factor will most likely increase the possibility of mutations in the Escherichia coli in the human body?(1 point)
eating dessert daily
a very stressful experience
drinking bottled water regularly
exposure to extreme heat
Changes to body cells affect(1 point)
gene activity.
cell division.
individuals.
offspring.
Answer:
Explanation:
Genes contain specific instructions for how to make proteins within the body.
Epigenetic changes are generally heritable genetic changes that are due to environmental factors, which work by turning genes that already exist in the body 'on' or 'off' depending on these factors.
Meiosis produces gamete cells. This is usually a total of 4 gamete cells which are all part of producing everything required in the reproductive process.
exposure to extreme heat is probably the most likely cause of mutation for E. Coli as it needs a steady 36–40°C for survival.
Changes to body cells affect cell division. This is because genetic mutations cause cells that are designed for normal cell growth to greatly increase which can throw the system off and cause many problems.
1. Proteins
2. Heritable genetic changes that are due to environmental factors
3. Gamete cells
4. Exposure to extreme heat
5. Individuals
You will get 100% using these:)
All living things need food. Some organisms make their own food. Others eat food. Can you classify these organisms based on how they
obtain nutrients and food?
ITEM BANK: Move to Top
Apple tree
drag and drop answer here
Carnivore
Bacteria
drag and drop answer here
Decomposer
Decomposer
Rabbit
drag and drop answer here
Herbivore
Brown Bear
drag and drop answer here
Omnivore
Lion
drag and drop asor hore
Omnivore
Pig
drag and drop answer here
Producer
Producer
Mushroom
drag and drop where
Grass
drag and droo answehere
Answer:
Explanation:
apple tree=producer
grass= producer
mushroom = decomposer
bacteria = decomposer
rabbit = herbivore
lion= carnivore
brown bear= omnivore
pig=omnivore
Is music stored on a smartphone an analog or digital signal?
When the sound wave is converted to a digital signal, it can be stored and transmitted by a computer.
What are Waves?A wave is defined as a disturbance in a medium that carries energy without net movement of particles which may take the form of elastic deformation, variation of pressure, electric or magnetic intensity, electric potential or temperature.
When a sound wave is converted into a digital signal that can be stored and transmitted by a computer. It allows us to download, play and stream music from our smartphones. Analog signals can be converted to digital signals where modern computers are controlled by digital, not analog signals.
Thus, when the sound wave is converted to a digital signal, it can be stored and transmitted by a computer.
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what could cause a nautral decrease in the number of primary consumers in a food chain
Answer:
Weather, Death, Lack of typical food, Moving to different places
Explanation:
Which evidence of evolution allows scientists to know what the physical features of an organism were ?
Question 12 (6 points)
Answer the following relating to PHOTOSYNTHESIS and CELLULAR RESPIRATION
for 2 points each:
1. Identify WHERE each process occurs in cells.
2. Identify what EACH process needs and makes.
3. Explain how photosynthesis AND cellular respiration are important to the carbon
cycle.
1. Photosynthesis occurs in the Chloroplast, which contain a chlorophyll whereas Cellular Respiration takes place in the double-membrane organelle called the mitochondrion.
2. PHOTOSYNTHESIS:
6CO2 + 6H2O → C6H12O6 + 6O2.
The reactants, six carbon dioxide molecules and six water molecules, are converted by light energy captured by chlorophyll into a sugar molecule and six oxygen molecules, the products.
CELLULAR RESPIRATION :
C6H12O6 + 6O2 → 6CO2 + 6H2O.
The equation for cellular respiration is the direct opposite of photosynthesis.
3. Cellular respiration and photosynthesis are important parts of the carbon cycle. The carbon cycle is the pathways through which carbon is recycled in the biosphere. While cellular respiration releases carbon dioxide into the environment, photosynthesis pulls carbon dioxide out of the atmosphere.
what is living thing that work together to coexist?
Answer:
When a group of individual organisms live together in one place we call it a population. A population is defined as a group of organisms from the same species that live together in the same area.
Explanation:
Coexistence: living harmoniously with wildlife in a human-dominated world is a primer on IFAW’s mentality that coexistence is better than conflict. People’s relationship with native wildlife is often that of conflict. Animals such as coyotes, wolves, bears, and beavers are considered “nuisances” and are treated as something to be controlled. The result is millions of animals killed in barbaric ways every year by governments, all to “reduce conflict.” This report highlights examples of people finding innovative, yet simple ways to coexist with wildlife so that we can live side by side with these species. IFAW understands that not only are native wildlife species important to protect, but they are also essential to the ecosystem and therefore our own well-being. We work every day to make the planet a better place for both people and animals.
Answer:
I believe they are looking for the word Symbiosis
how do greenhouse effect allow for there to be life on earth? Explain
Answer:
A greenhouse effect is when a planets atmosphere gets thicker and warms
Explanation:
As a planet with water's parent star gets brighter every million years, The amount of evaporation increases. these are called greenhouse gasses. greenhouse gasses include water vapor and Carbon. This is why Venus is a burning hell. it was once like earth, but the sun kept getting brighter and brighter, causing clouds to form all over the rock, trapping in more heat, and making it far to hot for even metal. One day this will happen to earth, as well. this is why we have global warming. It can be caused by Co2 from earth's inhabitants and water vapor from it's vast oceans.
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Mark observes that sugar dissolves faster in hot water than in cold water. He wants to conduct an experiment to understand the solubility of sugar. Which of the following questions leads Mark to test his observations? A. Does the texture of the sugar affect the solubility? B. O Does the heat transfer affect the solubility of a given substance? С. Does the temperature affect the solubility of a given substance? D. Does the shape of sugar cubes affect the solubility?
Answer:
i think that it it is C.Does the temperature affect the solubility of a given substance because it thas the temp that was the only difference in the original experiment. hope this helps.
Explanation:
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Normal text
2. Finish the punnett square showing a pink (RW) flower crossed with a red (RR) one.
Answer: RR R RR RR r Rr Rr Rr
Explanation:
guys plsssss help me
Answer: A
Explanation:1 this is 4th grade work
The specific combination of alleles an organism has is called its ____ which affect(s) the organism's ____.
A. Phenotype
B. Genes
C. Genotype
D. Traits
*For the second blank it's either Genotype or Phenotype!*
The specific combination of alleles an organism has is called its genotype which affects the organism's phenotype.
What do you mean by Alleles?Alleles may be defined as one of two or more DNA sequences occurring at a particular gene locus.
Genotype may be defined as the ultimate combination of alleles of those genes which are selected for studies.
The Phenotype may be defined as the expression of a genotype in the form of a trait. It is the morphology or physiology which comes due to a combination of alleles.
Therefore, the specific combination of alleles an organism has is called its genotype which affects the organism's phenotype.
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If the sperm cell of a fruit fly has 4 chromosomes, then the number of chromosomes in each body cell is:
Answer:8
Explanation:
Number of chromosomes in each body cell is 8.
What do you mean by chromosomes?A chromosome is a long DNA molecule with part or all of the genetic material of an organism. In most chromosomes the very long thin DNA fibers are coated with packaging proteins; in eukaryotic cells the most important of these proteins are the histones.
Moreover, chromosomes are thread-like structures located inside the nucleus of animal and plant cells. Each chromosome is made of protein and a single molecule of deoxyribonucleic acid (DNA).
Therefore, passed from parents to offspring, DNA contains the specific instructions that make each type of living creature unique.
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Why must the cell make sure it duplicates its
organelles and DNA before mitosis occurs?
Explanation:
Cells will duplicate or copy their DNA right before they divide. The process of cell division is called mitosis. Since the cell is dividing it needs two copies of its DNA - one is kept by the parent cell and the other is passed to the daughter cell. ... So this process of duplicating DNA is very important.
PLZ HURRY 50 POINTS!!! What is the first step in producing a vaccine against an infectious disease?
A inactivating the disease agent
B testing for vaccine side effects
C finding and isolating the disease agent
D isolating antigens
Answer: finding and isolating the disease agent
Explanation: :)
Answer: C. finding and isolating the disease agent
Explanation:
7. What is meant by the saying everything that is psychological is also biological
Answer:
People who work in psychology want to understand human behavior and where it comes from. The mind-body dualism debate is an ongoing discussion on whether or not the psychological activity of an individual is based entirely in their body, or if there is a higher consciousness separate from the body. The debate stretches back hundreds of years in the field of philosophy, where philosophers have argued whether everything is material, or if there is a separate, immaterial part to being human.
Answer and Explanation:
Explanation:
People who work in psychology want to understand human behavior and where it comes from. The mind-body dualism debate is an ongoing discussion on whether or not the psychological activity of an individual is based entirely in their body, or if there is a higher consciousness separate from the body. The debate stretches back hundreds of years in the field of philosophy, where philosophers have argued whether everything is material, or if there is a separate, immaterial part to being human.
Which of the following is not a feature of a plant cell?
A. Cell wall
B. Chloroplast
C. Lysosome
D. Mitochondria
Give one example of how you classification is used at school
Answer:
classification like student and teacher?
Explanation:
Conduction is the transfer of heat between substances with different temperatures. Heat moves from the warmer to the cooler substance through direct contact.
Answer:
True.
Explanation:
Conduction is a heat transfer method. The heat passes by direct contact between two objects. The heat will go from the object with the higher temperature to the one with the lowest one. We call this temperature gradient. If we analyze the molecular aspect of conduction, we can see that the molecules with higher temperatures have more energy so, they move more. These molecules will collide with the molecules of the other object transferring their energy. As a result, heat passes from the hottest object to the cooler one till the two substances are at the same temperature, there is thermal equilibrium.
Answer: b. Hot spring
Explanation:
Bile juice is released by the-
(A)Salivary glands
(B)Pancreas
(C)Liver
(D)Large intestine
Answer:
ayyyyyyyyyyyyyyyyyyyyyyyyyy sike its d no sike its a no sike its c no sick get a dDDDD
Explanation:
In need of help please
Answer:
thick and low in nutrients
Explanation:
because it is so cold and has barely any room for life in the first place, the soil is extremely low in nutrients. it is very thick. i know this because worms cannot move or live in that area because it is too cold and the soil is too thick. if you see what i mean since the worms cant get into the soild since its so thick and cold the soil has no nutrients so sorry it was very hard to explain
Please help! I'm struggling! Will give out BRAINILIEST if CORRECT!
What is the difference between natural selection and artificial selection? Explain why?
Answer:
Natural selection is not decided by humans, but aritifical is. In natural selection, the organism that naturally survives will have their selection of characteristics carried onto the offspring. But in artifical, humans decide which characteristics they want from an offsrping for their sepcific need, e.g largest or colour and breed organisms for that characteristic- not to make them survive better.