Answer: root hairs increase the surface area of the roots for nutrient and water absorption
Explanation:
If a colony of 10 bacteria begin dividing once every 24 hrs, how long would it take to get 320
bacteria?
48 hours
144 hours
0 72 hours
120 hours
help asap!! please i gotta turn this in soon!
Answer:
i think its b, and d
Explanation:
Answer:
Explanation:
Protein is a nutrient needed by the human body for growth and maintenance. Aside from water, proteins are the most abundant kind of molecules in the body. Protein can be found in all cells of the body and is the major structural component of all cells in the body, especially muscle.
In today's world, a phone call to 911 is designed to ensure that emergency services, including fire, law enforcement, and emergency medical care is accessible to all individuals who find themselves in an emergency. Traffic laws establish that drivers are to move their vehicles to the right of the road and come to a stop in order to allow an emergency vehicle to pass. Emergency medical care is recognized as vital to helping to keep people safe and healthy. Yet, emergency medical services (EMS), as we know them today were only formally established in United States the 1970s. How did the country survive for so long without these services? What did citizens do if they had an emergency? What changes took place that made EMS a part of the emergency care provided for citizens? In this chapter, you will learn about the history and development of EMS in the United States.
OBJECTIVES
Understand the history of EMS in the United States.
Understand the major historical developments that contributed to modern EMS.
Understand the legislative and administrative decisions that help to modernize EMS.
Understand the basic challenges to providing effective EMS care.
VOCABULARY
ambulances emergency medical vehicles designed to transport ill and injured persons
cardiac pertaining to the heart
cardiopulmonary resuscitation CPR , method of keeping a patient breathing and his or her heart beating using manual techniques
heart defibrillators medical devices designed to provide electrical current to restart a stopped heart
Highway Safety Act act passed in 1966 that established a program to improve highway safety and to improve the nature and quality of EMS in the United States
paramedics emergency medical professionals who provide advanced medical care, including life support, during emergencies
pediatric pertaining to children
triage system in which wounded soldiers are treated in order according to the severity of their injuries, regardless of other factors such as rank
Answer:
A
Explanation:
Which pair of elements can be used to determine the age of a fossil that is over one billion years old?
A.lead, which is radioactive, and uranium, which is stable
B.carbon, which is radioactive, and nitrogen, which is stable
C.argon, which is radioactive, and lead, which is stable
D.potassium, which is radioactive, and argon, which is stable
Answer:
A
Explanation
It should be A., lead and uranium.
how many members of each team is included in playing kickball?
A.5
B.6
C.7
please answer....
Answer:
suppose to be 8 but the minimum number is 6
Why is mitosis necessary during the development of a human?
Answer:
Mitosis is a way of making more cells that are genetically the same as the parent cell. It plays an important part in the development of embryos, and it is important for the growth and development of our bodies as well. Mitosis produces new cells, and replaces cells that are old, lost or damaged.
Explanation:
What's a good way to study for AP biology?
study about splitting cells. The process is difficult to remember.
Pls help!!!
Graph (see next page for graph paper grid)
Using the data from the Coal Production Table, create a graph of coal usage in each region over
the years. The x-exis should be years, and the y-axis should be coal production. Use a different
symbol or color to represent each region. Remember to include titles and labels.
Scan or take a picture of your graph and submit it with your assignment
.
Analysis
Changes over time are called trends. You can see on the graph a downward trend in the
Appalachian and Interior regions and an upward trend in the Western region.
Try predicting future coal production. Using a ruler, draw the lines for each region. Go beyond
2011. Draw the line with the same pattern it follows on the graph. The extension of the lines is
based on what you predict will happen with coal production.
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Questions
1. How much coal will be produced in the year 2020 for each region?
2. What trend would you predict for the next ten years for each region?
.
3. If people keep using coal in the same way, scientists say there may be enough coal reserves
to last 200 to 300 years. Does your graph show trends that match what scientists say? What
kinds of factors might cause them not to match?
4. Can you think of any problems that could come from using only 15 years of data to predict
trends for the next 100 years? Explain your answer. How could you prevent some of these
problems?
Answer:
Try this.
Explanation:
I'm not too sure because the teacher never gave me enough information (Need Bigger Graph). Get bigger graph paper as it says "The X-axis should be years and the Y-axis should be coal production." On the X-axis (Horizontal Line) write "Years" and on the Y-Axis (Vertical Line) write "Coal Production."
Now, your gonna start listing all the years on the X-Axis 1996 through 2011, And on the Y-Axis list all the coal productions 145 and all the numbers through 634. Make sure you have the regions, Appalachian, Interior and Western.
I'm sorry if this didn't help, this is what I did and it helped me, I thought it might help you too.
:3
What can you suggest to your classmate to keep himself/ herself clean and healthy
hello please help i’ll give brainliest
Answer:
abiotic
Explanation:
abiotic - nonliving components of an ecosystem that can affect the living organisms.
Temperature is a nonliving component and it affects the organisms that live within a certain environment.
Therefore the answer is Abiotic
Reasons its not the other answers:
Biotic factors must be living things
Temperature is not a living thing therefore Biotic cannot be the answer
Same with living, temperature is not living therefore the answer cannot be living.
Temperature plays a huge role in an ecosystem therefore it is considered an important component and the answer cannot be unimportant.
Can you guys help me with this ? Kinda struggle with those questions.
The biotic factors that affect an organism include other species in that organism’s community.
Answer:
NOt sure
Explanation:
because
What role does the Krebs cycle play in the cells
In the carbon cycle, atmospheric carbon dioxide is converted into organic material by which process? a) transpiration b) cellular respiration c) decomposition d) photosynthesis
Answer:
The correct answer is d) photosynthesis
Explanation:
Photosynthesis is the process by which plants transform inorganic matter from their external environment into organic matter that they will use for their growth and development. It basically consists of the production of sugars from C02 (carbon dioxide) in the air, minerals and water with the help of sunlight. In this reaction, oxygen molecules are released and carbohydrates are fixed in the plant. Plants absorb sunlight through a pigment called chlorophyll. Not only can plants fix CO2, so do certain bacteria and green algae. Photosynthesis is conditioned by internal plant factors and external or environmental factors.
A person sees a ball and kicks it, in part because of actions of the nervous system. Using the parts of the nervous system listed, describe the path of nerve impulses that cause the person to (1) see the ball and (2) kick the ball.
Answer:
In the case of seeing a ball and kicking it can be expressed in the actions of the nervous system as follows:
Part 1. Eyes see the ball and send signals with the help of sensory neurons that carry this message to the spinal cord.
PArt 2. The spinal cord processes the information and sends an "impulse" of kicking the ball that will transfer to motor neurons that transfer it to the brain and then muscles.
Sensory neurons --> spinal cord --> motor neurons --> brain---->leg muscles
Where does the light and thermal energy given off when burns food come from?
A Light and thermal energy given off from burning food comes from the lighter used to light the food.
B. Light and thermal energy given off from burning food is converted from the chemical energy stored in
the food.
C. Light and thermal energy given off from burning food comes from oxygen.
D. Light and thermal energy given off from burning is created when food burns.
3. Why do two grams of fat provide a different amount of energy than two grams of carbohydrate?
Answer: B
Explanation: Because Light and thermal are two different things of heat and if one of the cores of heat gets any cooler than it is than it may burn out and there wwill no longer be heat so the food brin come in at the middle (Core) of the heat and just like a microwave it had different heats but its core of the heat stays the excact same
Animal life tends to stay away from areas
where succession is beginning, for which of
the following reasons?
A. Animal life does not tend to stay away from areas beginning
succession.
B. There are few resources there to be consumed.
C. Ecological succession releases harsh chemicals that would
harm animals.
Am I right? Please someone help me
Answer:
A. 17,100
Explanation:
The half life of carbon-14 is around 5,700 years. When the shell contains 50% of its original carbon-14, 5,700 years have passed. 25% means another 5,700 years have passed, meaning 11,400 years in total have passed. 12.5% means another 5,700 years have passed, meaning 17,100 years have passed in total.
All animals share the following characteristic a. being a consumer, b having cell walls, c not having cell nuclei, d budding, Please include an explanation I just completed a test but I don't understand and when I looked for the question on brainly it had 2 answers disagreeing
Answer:
a. Being a consumer
Explanation:
All animals are comsumers because they do not have the ability to photosynthesise like plants do. In order for amimals to gain energy, they must consume plants or other animals.
T or F 7. Trp Operon - which determine the formation and arrangement of body parts in
multicellular organisms, control gene expression by regulation of - DNA translation
Answer:
Trp Operon.
Explanation:
Trp Operon determines to control gene expression by regulation of DNA translation. The trp operon is found in E. coli bacteria, is a group of genes that encode biosynthetic enzymes for the production of amino acid tryptophan. The trp operon refers to turned "on" when tryptophan levels are low whereas refers to turned "off" when tryptophan levels are high. The trp operon is controlled and regulated by the trp repressor.
Help me please finish the hypothesis! Only have 2 minutes No websites
HYPOTHESIS: If 2 chambers of water are poured side-by-side, the warmer water will mix the cooler layer because it ___________
Answer:
Heat Transfer
Explanation:
If Two chambers of water are poured side-by-side, the warmer water will mix the cooler layer because the water molcules in a jar of hot water are more spread out and the two jars seek a balance of tempature.
how are mutations passed to offspring in sexually reproducing organism
how are each of the rock types created (igneous, sedimentary, and metamorphic) created?
Answer:
igneous is by heat, sedimentary byayering and metaphoric by heat
On a worldwide basis, which of the following uses the least water?
a. industry.
b. agriculture.
c. hydroelectric power plants
d. domestic uses (drinking, cooking toilets, etc.)
Conserving water is important because it keeps water pure and clean while protecting the environment.
On worldwide basis domestic use uses least water.
On the worldwide which uses least water?a. industry: 19 percent of total water is used by industry.
b. agriculture: 70 percent of total water is used by agriculture.
c. hydroelectric power plants: 52 percent of water is used by hydroelectric power plant.
d. domestic use: 11 percent of total water is used by domestic use.
Thus we can conclude that the correct option is (d) that is domestic use.
You can learn more about water conservation here:
https://brainly.com/question/10221255
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What forms of energy are there?
mechanical, kinetic, potential, gravitational, thermal, chemical, electrical, light, radiant, sound, and nuclear.
a. The logistic equation reflects the effect of density-dependent factors, which can ultimately stabilize populations around the carrying capacity. b. Density-independent factors have an increasingly greater effect as a population's density increases. c. High densities in a population may cause physiological changes that inhibit reproduction. d. Because of the overlapping nature of population-regulating factors, it is often difficult to precisely determine their cause-and-effect relationships. e. The occurrence of population cycles in some populations may be the result of crowding or lag times in the response to density-dependent factors.
Question:
Which of the following is an incorrect statement about the regulation of populations?
Answer:
b. Density-independent factors have an increasingly greater effect as a population's density increases.
Explanation:
A population can be defined as the total number of living organisms living together in a particular place and sharing certain characteristics in common.
Generally, these populations may be divided into a fraction of the population (subpopulation) based on certain factors and reasons.
Population change equation states that the change in the size of a population over a specific period of time is equal to the sum of the number of births and the number of immigrants that joined.
Mathematically, the population change equation is given by the formula;
Population Change = (Natality - Mortality) + (Immigration - Emigration)
Population regulation can be defined as a biological process that balances limiting factors affecting the growth of a population based on density. The factors that regulate the growth of a population are divided into two (2) main categories and these includes;
I. Density-independent factors.
II. Density-dependent factors.
Density-dependent are regulating factors such as predation, diseases, and competition that affect the size of the population of living organisms through decreasing or increasing mortality and birth rate.
Furthermore, density-independent factors do not have an increasingly greater effect as a population's density increases. Thus, its effect are reduced as a population's density increases in size.
A partir del concepto de osmorregulación cual es la regulación hídrica y salinas en peces de agua dulce y salada
Answer:
Absorben o excretan agua salada para mantener la homeostasis.
Explicación:
La regulación hídrica y salina en peces de agua dulce y salada se realiza según las condiciones ambientales. Los peces pueden pasar mucha orina muy diluida en la que hay menos solutos o sales, y logran el equilibrio de electrolitos en el cuerpo mediante el transporte activo de sales a través de las branquias. En un ambiente marino hipertónico, los peces de agua salada comienzan a beber agua de mar y mantienen el equilibrio electrolítico mientras excretan el exceso de sales a través de sus branquias y su orina.
Which statement best describes Earth’s outer layer underneath the surface in the image?
Answer:
Underneath both the soil and the ocean, Earth's outer layer is made of sand and water. Underneath both the soil and the ocean, Earth's outer layer is made of hard, solid rock.
Help me on this plz get this correct
Answer:
1. Eagle
2. Primary
3. The population of snails would go up
4. The same amount i believe
5. The Mitochondria
The purpose of meiosis is to
A. Produce cells that each have a unique set of genetic material
B. Produce cells that are genetically identical to one another.
C. Create genetically variation by introducing mutations.
D. Repair and replace damaged cells.
Answer:
B. Produce cells that are genetically identical to one another
Answer:
B
Explanation: