If there are 60 crayfish living in a pond that is 20 cubic yards, what is the population density?

Answers

Answer 1

Answer:

80

Explanation:


Related Questions

When Gregor Mendel crossed true-breeding tall plants (TT) with true-breeding short plants (tt), all the offspring were tall because

Answers

Answer:

Because the trait associated with "tall-ness" is dominant and shortness is recessive

Answer:

the allele for tall plants is recessive and none of the offspring received an allele for short height.

Explanation:

Thats what my teacher said^

Match the causes with their effects.
Cause: Convection currents cycle through magma.
Cause: Unstable isotopes inside Earth release energy.
Cause: Iron in Earth’s outer core swirls due to convection currents.
Effect: Radiogenic heat is released.
arrowRight
Effect: Earth has a powerful magnetic field.
arrowRight
Effect: Tectonic plates move.
arrowRight

Answers

1. Effect:  Radiogenic heat released- Cause: convection currents cycle through magma.

2. Effect: Earth has a powerful magnetic field- Cause: Iron in earths outer core swirls due to convection currents.

3. Effect: Tectonic plates move- Cause: unstable isotopes in earth release energy.

What is Convection current?

Convection currents are defined as the result of differential heating where lighter, less dense, warmer materials rise while heavier, more dense, cooler materials sink. This is the movement that creates circulation patterns known as convection currents in the atmosphere, in water, and in the Earth's mantle.

Convection currents arise from differences in fluid density that arise due to a temperature gradient, resulting from the continuous replacement of the hot fluid in the region of the heat source with the nearby cold fluid which is known as the natural convection currents.

Thus, Radiogenic heat released- Cause: convection currents cycle through magma.

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Answer:
Effect:

Radiogenic heat is released

Cause:

Unstable isotopes inside Earth release energy

----------

Effect:

Earth has a powerful magnetic field

Cause:

Iron in Earths outer core swirls due to convection currents

----------
Effect:

Tectonic plates move.

Cause:

Convection currents cycle through magma.

-----------

Explanation:

Got it right on Edmentum.

1. In the fast change, how are other parts of the ecosystern affected?

Answers

Answer:

is there more to this question because this doesn't  make sense.

Explanation:

This doesn’t make much sense to me

PLS HELP I NEED THIS BY TODAY ASAP

Answers

It’s would be 45 I think it’s that way sorry if I’m wrong

What figurative term is "merry hell"?

onomatopoeia

personification

oxymoron

hyperbole

Answers

Pretty sure oxymoron since all the other ones do not describe it

What would happen to food chains if all the plants died out ?justify your answer.

Answers

Answer:  there would be no way for energy to enter the food web, and the ecological community would collapse.

Explanation:

everything would die because its a domino effect

Answer:

There would be no way for animals to get the energy they would need so all of the animals would get sick, and if other animals ate them they would get sick and the food chain would start dying.

Explanation:

How will increased temperatures affect water in California?

Answers

Answer:

Rising temperatures also increase the rate at which plants transpire water into the air to keep cool, so irrigated farmland would need more water.

Explanation:

IS IT WEATHERING, EROSION, OR DEPOSITION?
Over time, the running water wears down rocks, making them smooth.

Answers

Answer:

Weathering

Explanation:

The answer is weathering because, weathering is the breaking or wearing down of rocks, soil, minerals, and wood. The water wore down the rock, making it smooth, so it connects to the definition that i just gave you.

Hope it helped!

Select all the correct answers.
The image shows a week-old chick embryo. What can you conclude about its current stage of development?
A spinal column is present.
The chick will develop four limbs and a beak.
It's an invertebrate.
It's sexually mature.
It's about to undergo a metamorphosis,

Answers

Answer:

spinal column is present.

B] The chick will develop four limbs and a beak.

C] It's an invertebrate.

D] It's sexually mature

E] It's about to undergo a metamorphosis.

Classify each planet as an inner planet or an outer planet.

Answers

planet A- outer
planet B- outer
planet C- inner
planet D- inner
planet E- inner
planet F- outer.

hope this helps :)

Which of the following occurs when a small group of individuals leaves a population
and establishes a new one in a geographically isolated region?
A. Genetic drift
B. Natural selection
C. Non-random mating
D. Gene flow

Answers

answer is A

Explanation:

A. Genetic drift

Which is NOT true of magnetic
domains?
A. Magnetic domains are groups of aligned
atoms.
B. Magnetic domains are too small to be seen.
C. Magnetic domains are outside of a magnet.

Answers

C.

Explanation: A magnetic domain is a region within a magnetic material in which the magnetization is in a uniform direction.

The study of magnetic domains is defined as the micro magnetics. The Magnetic domains are outside of a magnet is not true. The correct option is C.

What is a magnetic domain?

A magnetic domain is defined as a region within a magnetic material in which the magnetization is in a uniform direction. This indicate that the individual magnetic moments of the atoms are aligned with one another and they point in the same direction.

The magnetic domain structure is responsible for the magnetic behavior of ferromagnetic materials like iron, nickel, etc. The domains are found to be oriented randomly if there is no external magnetic field.

Thus the correct option is C.

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____ currents inside Earth might drive plate motion.
a.
Vertical
c.
Horizontal
b.
Convection
d.
none of the above


Please select the best answer from the choices provided

Answers

I agree with D it sounds right

Answer:

B. Convection

Explanation:

why aren't scientific theories just called facts?

Answers

Answer:

Explanation:

Is this a question or a joke?

magnetite is________that acts like a magnet
A.a compass
B.an electric circuit
C.a mineral
D.a planet​

Answers

Answer:

C. a mineral

Explanation:

magnetite is a naturally-occuring mineral found in the lithosphere. Like other metals (such as iron), it has electromagnetic properties.

HELP HELP HELP
THERES ONLY 1 RIGHT ANSWER
Directional selection drift
Disruptive/divergent selection drift
Fitness
DNA
Artificial selection
Vestigial structure
Homologous structure
Convergent evolution
Niche
Strong big one
Thin needle nose
Behavioral selection
Genetic variation

Answers

Answer: dna

Explanation:

Please help with all three will mark brainliest

Answers

Answer:

cells and tissue are the most basic level

then it is the bladder as it is connected to the kidney

and then the muscular system as it is chewing

Explanation:


Adaptations that result from natural selection are expected to increase
the fitness of an organism. In terms of natural selection, which of the
following best describes fitness?
A Being able to escape from predators
B Being among the strongest organisms in a population
C Being able to survive, find a mate, and produce offspring
D Being able to survive long enough to reach the adult stage

Answers

Answer:C Being able to survive, find a mate, and produce offspring

The fitness that should be explained when being able to survive, also find the mate and it generated the offspring. Hence. option c is correct.

What is fitness?

It is considered as the health and its well-being. It is the capability for performing that should be based on sports, occupations, and day to day activities.

It is generally accomplished via proper nutrition, physical exercise, proper sleep.

Therefore we can conclude that the option c is correct.

And, the rest of the options are considered to be wrong.

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How would Earth be different without the greenhouse effect?

A. There would be more solar energy reaching Earth.
B. There would be more ice on Earth's surface.
C. The oceans would contain more carbonic acid.
D. The atmosphere would contain more methane.

Answers

Without the greenhouse effect, there would be more ice on Earth’s surface. The answer is B.
it would be B i hope this helps :)

What is the role of the fungus in the food web shown?
boa constrictor
beetle
coati
poison dart frog
sloth
strangler fig
fungus fruit bat
O A. To break down organic matter into carbon dioxide and water
B. To break down food molecules in the absence of oxygen
C. To convert light energy into chemical energy organisms can use
D. To gather green light in order to carry out photosynthesis

Answers

A because decomposers are associated

The role of fungus in the food web shown is to break down organic matter into carbon dioxide and water. The correct option is A.

What is fungus?

Fungus is a eukaryotic organism. They grew in soils and wood and moist and dark places. Fungi break down the material. While consuming the nutrients in the decaying matter, they produce enzymes that break down the material.

The biomass would be overrun with the dead matter without the majority of fungi, which is why they are helpful. Bacteria and actinomycetes are some additional decomposers. They act as nature's recycling machine by consuming animal carcasses, bones, dead plants, and various minerals thanks to their enzymes.

Therefore, the correct option is A. To break down organic matter into carbon dioxide and water.

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How much force would a shot putter need to make a 5.5 kg shot accelerate at 8 meters per so one squared

Answers

Answer:

44 N

Explanation:

Force applied can be calculated using the formula as follows;

F = m.a

Where;

F = force (Newton)

m = mass (kg)

a = acceleration (m/s²)

According to the information provided in this question, mass of shot put = 5.5kg, acceleration = 8m/s². Hence;

F = m × a

F = 5.5 × 8

F = 44 Newtons

The force needed by the shot putter is 44N.

mitosis and cell cycle definition

Answers

Answer:

mitosis definition: a type of cell division that results in two daughter cells each having the same number and kind of chromosomes as the parent nucleus, typical of ordinary tissue growth.

cell cycle definition: A cell cycle is a series of events that takes place in a cell as it grows and divides. A cell spends most of its time in what is called interphase, and during this time it grows, replicates its chromosomes, and prepares for cell division.

the evolutionary mechanism that maintains or increases diversity is? ​

Answers

Answer:mutation

Explanation:

Help!! When a virus gets into the body, some body cells
are................

Answers

the first one A) infected

Humans burn fossil fuels and wood, releasing carbon dioxide into the atmosphere. This carbon dioxide is then absorbed by trees for photosynthesis. These processes are contributory to which chemical cycle?

Answers

Carbon cycle. Because everything that is happening in the situation of this question is related to the carbon cycle. Fossil is being burnt which releasing carbon dioxide and the plant is taking it in to release oxygen!
It is a circle of life.

Carbon cycle controls the amount of carbon dioxide in the atmosphere. These processes are contributory to the carbon cycle in the       environment.

What is a carbon cycle ?

The carbon cycle is nature's method of recycling carbon atoms, which repeatedly go from the atmosphere into Earth's living things and back into it. The majority of carbon is preserved in rocks and sediments; the remainder is preserved in the ocean, the atmosphere, and living things.

Life on Earth is reliant on the carbon cycle. The quantity of carbon that is naturally released from reservoirs is equal to the amount that is naturally absorbed by reservoirs because nature tends to maintain carbon levels in balance. This carbon balance must be preserved for the earth to continue to support life.

Therefore, the carbon cycle is an important chemical cycle.

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Name the major muscles

Answers

tongue, biceps, triceps, gluteus maximus

Which of the following best describes a mutation?

a change in a gene

a section of a chromosome that codes for a trait

anything that can damage a gene

a distinguishing quality that can be passed from one generation to another

Answers

a mutation is a change in a gene

Students use alphabet letters to represent the genetic instructions for a trait of an organism. The students write these alphabet letter in graphic organizers. The students are trying to show genetic instructions passing from parent to offspring.

Which graphic organizer does NOT represent asexual reproduction?


Answers

Answer:

It’s B

Explanation:

In molecular compounds molecules bonded tk gether by____
a) covalent bond
b)metallic bond
c)ionic bond
d)none of them

Answers

Answer:

a) Covalent bond

Explanation:

Atoms of different element are held together in molecules by covalent bonds in which atoms share their valence electrons with each other.

WILL GIVE BRAINLIEST
which of the following situations best displays a direct effect of a flood?

a.) a change in building regulations
b.) the destruction of a neighborhood
c.) the creation of new levees for future protection
d.) trough of wave arrives fast exposing the sea floor

Answers

Answer:

b.

Explanation:

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