What would be the calculated population density for a frog population if there were 100 frogs living in a
pond that covers four square kilometers?

A) 100 frogs per square kilometer

B) 50 frogs per square kilometer

C) 40 frogs per square kilometer

D) 25 frogs per square kilometer

Answers

Answer 1
D is the correct answer
Answer 2
I believe D is the right answer

Related Questions

10. Viruses and cells are different in many ways. In which of these ways are viruses and cells most similar?

1. composition of outer covering

2. composition of genetic material

3. stages of reproduction

4. stages of life cycle

Answers

Answer:

the answer is 1

Explanation:

Viruses and cells are different in many ways but in composition of outer covering these ways they same to each other. Thus, option A is correct.

What are viruses?

Viruses are defined as the microorganisms who needs to infect the living host cells, in order to replicate as well as reproduce. These infectious agents has been capable of the injecting as well as infecting all the life forms the present, including the plants, or the animals and bacteria.

The viruses were not just among the first organisms that has been evolve as in the order to replicate themselves and it will continue through the time they needed other organisms' cell. Aerobic bacteria has been the bacteria that has been need oxygen just  perform cellular respiration, and that can survive and grow in the oxygenated environment, while anaerobic bacteria has been the bacteria that do not require oxygen for their growth.

Therefore, Viruses and cells are different in many ways but in composition of outer covering these ways they same to each other. Thus, option A is correct.

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what are the products of photosynthesis?

Answers

Answer:

Oxygen

Explanation:

which material is a pure substance

Answers

Answer:

Examples of pure substances include tin, sulfur, diamond, water, pure sugar, table salt and baking soda. Crystals, in general, are pure substances. Tin, sulfur, and diamond are examples of pure substances that are chemical elements. All elements are pure substances.

Explanation:

May I have brainliest please? :)

Answer:

Nitrogen

Explanation:

If it's for edg I got it right :)

Describe the niche of the giraffe.

Answers

A niche is the role an animal plays in its environment. A giraffes niche would be their long necks. With their necks they can reach up higher and eat where no other animals can eat. Giraffes don't have to compete with other animals for their food so they live peacefully with other animals.

Answer:

A niche is the part of an animal that plays important role in its environment.

A giraffes niche would be their long necks. With their necks they can stand up higher and eat where no other animals can reach to eat.

Giraffes don't have to contend with other animals for their food so they survive harmoniously with other animals.

Their necks are instrumental in much of this niche, determining what the giraffes eat and what they see.

The elongated necks of giraffes support them consume leaves, blossoms and fruit that are higher than most grazing animals can touch; only elephants can compete for food at the equivalent level

Explanation:

who all is transgender?

Answers

Answer:

Me

Explanation:

But I don't have very many accepting people in my life right now... T-T

what are three things that revolve around the sun​

Answers

Answer:

planets, moons, asteroids, comets or meteoroids.

Explanation:

What patterns do you notice in how the airborne pathogen spreads

Answers

Answer:

can u send a screen shot

Answer:

Air born pathogens are minute creatures responsible for causing a variety of illness. These pathogens may be bacteria, virus or fungi and spread through a variety of mechanism. When an infected person sneeze, respiratory droplets add into air. These infectious droplets when inhaled by a healthy person he become ill.Example is flue virus.

found this on another brainly question

Explanation:

choose the correct answer
1) the cell organelle which is present only in plant cell( )
a) mitochondria. b) chloroplast
c) ribosomes. d) nucleus

Answers

Answer:

B

Explanation:

Chloroplasts are organelles found in plant cells and eukaryotic algae that conduct photosynthesis. Chloroplasts absorb sunlight and use it in conjunction with water and carbon dioxide gas to produce food for the plant.

Answer:

b)

Explanation:

Chloroplasts are present in plant cells and not in animal cells, they also contain a pigment called chlorofyll which absorbs light and helps in photosynthesis

How should two solutions that differ by 1 pH unit be described?

Answers

Answer:

one may be more acidic or basic than the other solution .

Explanation:

which source would be the most credible for researching a vacation to Alaska?

Answers

Answer:

maybe the state of Alaska tourism website would be a good source for researching a vacation to Alaska. It might work

Explanation:

(AKS 1a/DOK 2) Usain Bolt was on his way to run a race. Before he left the house, his friend gave him an apple and said this will help you win the race.
Explain how eating the apple would benefit the runner
O A. The chloroplasts in the apple tree produced glucose which is the product of photosynthesis for the apple. When Usain ate the apple the glucose
provided energy for the mitochondria in his legs to increase his energy for the race,
B. The apple contains nucleotides from the tree's DNA, Usain ate the apple and used this DNA to help control the cells and run faster
OC. The apple tree performed cellular respiration in it's chloroplasts to produce protein in the apple which provided energy for Usains mitochondria in his
leg muscles
D. The tree produces lipids when it perfogms photosynthesis, these lipids then enter his golgi bodies where ribosomes make energy for him to run faster.
25

Answers

Answer:

A

Explanation:

...

PLEASE HELP!! WILL GIVE BRAINLIEST!!
Identify the correct term for each definition.

a. the bottom chamber of both sides of the heart
b. the dome-shaped muscle at the base of the chest cavity that contracts and lowers to draw oxygen into the lungs then relaxes and lowers to push carbon dioxide out
c. the liquid part of the blood
d. the protein that colors red blood cells and allows them to carry oxygen to the tissues
e. the passageway out of the body for urine
f. the top chamber of both sides of the heart
g. the tube that carries food to the stomach
h. the two branches of the windpipe that descend to the right and left lungs
i. muscles that operate completely outside of conscious thought
j. tiny blood vessels where pickup of wastes and delivery of oxygen and food takes place tiny filtering units in the kidneys
k. a waste product that is made up of leftover parts of used proteins and is high in nitrogen
l. urea and other waste substances that are collected in the bladder

Answers

Answer:

a-Ventricle

b-Diaphragm

c-Plasma

d-Hemoglobin

e-Urethra

f-Atria

g-Esophagus

h-Bronchi

i- Involuntary muscles

j-Glomerulus

k-Ammonia

l-Urine

Which of the following BEST describes the ATP cycle?

A. ATP is a low energy molecule that absorbs energy that is given off in a chemical reaction.


B. ATP is a high energy molecule that releases energy when a phosphate is released.


C. ATP converts to ADP by releasing a molecule of oxygen.


D. Once ATP releases energy, it is destroyed and is never used again.

Answers

Answer:ATP is a low energy molecule that absorbs energy that is given off in a chemical reaction.

Explanation:

how can fossils tell us how individual organisms protected themselves​

Answers

Answer:

We can tell that extinctions have occurred in the past by looking at fossils in layers of sediments. If the amount of fossils found match you can infer that they are the same organism and they are extinct. If you can't match up the bones with any animal today.

Hope this Helps!

In cellular respiration, the reactants are:

Carbon Dioxide
Glucose
Oxygen
Water
ATP

(multiple choices)​

Answers

Answer:

Oxygen & glucose

Explanation:

Glucose and oxygen are the reactants and the end products are carbon dioxide and water with the liberation of energy in form of ATP.

Glucose is the substrate. It is broken down into CO2 and H2O in the presence of O2.

Oxygen and Glucose are the reactants of Cellular Respiration

Which phase occurs directly after S phase?
O A. G2
O B. G1
O C. Cytokinesis
O D. M phase

Answers

Ur answer is A. G2


Explanation: it goes G1 Phase, S Phase, and then G2 phase. The answer is A.

PLEASE HELP MARKING PEOPLE AS BRAINLIST

The purpose of cytokinesis is to

A:Destroy the parent cell B:Divide the parent cell in two
C:Rebel against society D:Create a mutation

Answers

Answer:

b

Explanation:

B cytokines is when it splits in two and turns into parent cells :)

i need help please !!!

Answers

Answer:

890? thats what i think...

Explanation:

sorry if im wrong, but im happy to help anyway:)

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Select the events that happen during Prophase (Select all that apply)

A:Chromosomes coil up B:Spindle fibers form C:Nuclear envelope disappears
D:Chromosomes line up in the middle
E:Sister Chromatids divide F:Chromosomes uncoil G:Nuclear envelop forms H:Spindle fibers disappear I:DNA replicates

Answers

Answer:

A, B, G, I

Explanation:

Which of the following statements best explains how forests reduce atmospheric carbon dioxide levels? *

a. The roots of trees fix atmospheric carbon dioxide into the soil for use by the trees
b. Soil bacteria in forests break down atmospheric carbon dioxide to produce fossil fuels.
c. Trees use atmospheric carbon dioxide during photosynthesis to form organic compounds (sugar/food).
d. Animals that live in forests consume atmospheric carbon dioxide during cellular respiration

Answers

Answer:

The answer is C: Trees use atmospheric carbon dioxide during photosynthesis to form organic compounds (sugar/food).

Explanation:

Plants use atmospheric carbon dioxide through photosynthesis.

C because it makes the most sense because it just does so it’s c

Which of these organisms have no seeds and no specialized tissues?
sequoia trees
orange trees
club moss
liverworts

Answers

Answer:

Liverworts

Explanation:

a small flowerless green plant with leaf-like stems or lobed leaves, occurring in moist habitats. Liverworts lack true roots and reproduce by means of spores released from capsules.

YALL THIS IS SO FREAKING HARD
WHAT DAY IS IT?

Answers

Answer:

Today is Monday, November 16, 2020.

It can be written as 11/16/2020 or 11/16/20.

It is the 321st day of the year out of 365 days.

In ecosystems, plants transform light energy from the Sun into chemical energy when they make sugar. This sugar can then be consumed by other organisms to be used as building blocks for other molecules, such as proteins and fats, or it can be transformed into other forms of energy, such as kinetic energy, when the organism moves. Which of the following statements is supported by the above information? A. Energy can change forms, but only one kind of matter exists. B. Matter and energy must always remain in the same form and location. C. Matter and energy can change forms and locations in ecosystems.

Answers

Answer:

Matter and energy can change forms and locations in ecosystems.

Explanation:

Matter and energy can change forms and locations in ecosystems.

In the given information, light energy changed into chemical energy and then into kinetic energy, and sugar changed into proteins and fats as it moved from the Sun to the plant and then to other organisms.

It is important to note that although matter and energy can change forms and locations in an ecosystem, the total amount of matter and energy must always remain the same according to the laws of conservation of matter and energy.

The genome is _______ the genome size.

A. larger than
B. smaller than
C. equal to

Answers

Write the full question!!!
The answer: equal to
I hoped that I helped you

How many water molecules are released in the synthesis of 10 maltose and 15 sucrose?

Answers

Answer:

10 water molecules are released in the synthesis of 10 maltose and 15 water molecules are released in the synthesis of 15 sucrose.

Explanation:

10 water molecules are released in the synthesis of 10 molecules of maltose and 15 water molecules are released in the synthesis of  15 molecules of sucrose because in a reaction, when two glucose molecules fuse together forming a molecule of maltose with the release of single water molecule while on the other hand, when glucose and fructose fuse together forming sucrose releases single molecule of water, so in each case, one molecule of water is produce.

What part of a microwave oven protects humans against radiation?
1. glass doors
2. plastic outer covering
3. metal shields
4. magnetrons

Answers

Answer:

metal shields

Explanation:

I took the quiz and exam

Humans are shielded from radiation by metal parts of a microwave oven. So, the correct option is C.

What is Microwave oven?

A microwave oven, often known as a microwave or electronic oven, is a device that uses microwaves, which are high-frequency electromagnetic waves, to cook food. A microwave oven is indeed a compact, box-shaped oven that increases food's temperature by exposing it to an electromagnetic field with a high frequency.

Water, lipids, carbohydrates, and a few other molecules absorb the microwaves, which causes their vibrations to produce heat. Hence, cooking time is significantly shortened because the heating takes place inside the food rather than warming the air around it. Metal components of a microwave oven protect people from radiation.

Therefore, the correct option is C.

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Where does competition for reproduction most likely occur?

Answers

When both species of animals are different but have the same niche, which they will then compete ...

The model shows a substance crossing a cell membrane.
Solute particle Cell membrane
Which of the following describes the process?

a.
The model shows the process of active transport because the solute particles are
moving from an area of low concentration to an area of high concentration.

b.
The model shows the process of bulk transport because the solute particles are
moving from an area of low concentration to an area of high concentration.

C.
The model shows the process of diffusion because solute particles are moving from
an area of high concentration to an area of low concentration.

d.
The model shows the process of osmosis because the solute particles are moving
from an area of high concentration to an area of low concentration.

Answers

Answer:

C

Explanation:

Solute particles are constantly moving around in a solution, interacting with one another, and dispersing in different directions. Simple diffusion is the term used to describe the random mixing of solute particles in a solution. Thus, option C is correct.

What are the factors in solution for solute movement?

Active transport is the term used to describe the movement of solute particles from low to high concentration.

Because they will have more kinetic energy. The rate of diffusion increases as surface area increases.

Particles of the solute move against the concentration gradient during active transport. Solute particles travel from a low-concentration region to a high-concentration region in this manner.

Therefore, model shows the process of diffusion because solute particles are moving from an area of high concentration to an area of low concentration.

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What traits could represent the phenotype of an organism?

A. Tt, purple
B. yellow, tall
C. Rr, RR
D. wrinkled, ww

Answers

It is B because I had to do this question to

in which era did human being evolve and what was the time period of that era?​

Answers

Answer:

cenozoic era time periid 65 million year ago

Explanation:

please mark me brainlist

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The steps that lead you from dependence to independence are referred to together as the A group of students conducted an experiment to find out what happens to the force of magnetism between two magnets as the distance between them increases. They used the equipment you see in the illustration. Theyplaced spacers between the magnet in the cup and the magnet on the post to increase the distance between them. They used washers as units to measure how much force it took to pull the two magnets apart. A 2-column table with 3 rows. Column 1 is labeled Days, x with entries 3, 4, 5. Column 2 is labeled Miles, y with entries 771, 973, 1,175.The Boden family is taking a road trip across the US. After initially driving for awhile, the Bodens decide to make a plan to drive a set number of miles each day. Days 3, 4, and 5 are displayed in the table. Assume the relationship is linear.Identify how many miles per day the Boden family is planning to travel. miles per day which was an important part of dalton's atomic model Which is the graph of 2x + 3y > 3? Why did Frida Kahlo start painting self-portraits? Explain the Texas Declaration of Independence in a Texas Army Soldier's point of view. please help i will give you brainiest!!!!do all 5 sentences Part b: Which phrase from the passage ( The fisherman and his wife) best supports the answer to Part a A. "he shivered and sook, and his knees trembled"B. " there arose a great wind, and the clouds flew by, and it grew very dark"C. "the sky was partly blue in the middle"D. " he felt very desponding" A number increased by 4 is no more than -18. How would you write the following date? June 5thels 5 del julioel 5 de junioel 5 da junioen 5 da julio Why did the outcome of the French and Indian war lead to tensions between The Colonists and Great Britain? In a neighborhood, many people were killed in a fire. What could provide a clue about identification of the victims if the bodies were completely mutilated?A. fingerprintsB. hairC. teethD. bloodE. bones The first term of an arithmetic progression is 80 and the common difference is -3. what is the greatest possible sum of the first n terms of this sequence, and for which value of n does it occur?I need help with this question, in advance thank you :) Copy the following conversation into the text box. Add punctuation and capitalization so the dialogue is written correctly.take a look at my new hamster said Abbywhy is this door open her friend askedAbby ran to the cage he escaped she screamed Great Free Practice Problems(these problem is all "find the number" problems)1. In a two-digit number, the tens digit is 5 less than the unit digit. The number itself is five more than three times the sum of its digits. What is the number?2. The sum of digits of a two-digit number is 11. The reverse number is 9 greater than the original number. Find the reverse number.3. The sum of the digits in a two-digit number is 14. If you reverse and double the original number, and then add the results to the original number, the sum is 222. Find the original number.4. The unit digit of a two-digit number is four more than the then digit. If the number is doubled it will be q more than the reversed number. Find the number5. In a three-digit number, the tens digit is the same as the hundreds digit. The ones digit of this number is equal to 1/3 of the sum of the other two digit. Find the number if the sum of all its digits is equal to 24 6. In a two-digit number, the units digit is six less than three times the tens digit. Four times the unit digit minus five times the tens digit equals 11. Find the digits.Please answer all the problems ;) Without article IV, what are some problems the states could have? Explain the decision the Supreme Court handed down in Plessy v. Ferguson. Did the court later stand by this ruling? The Middle East has what percentage of the world's oil resources?A) 30%B) 50%C) 80%D) 20% Select all of the ratios that are equivalent to 6:3?