What is an equinox and when does it happen?

Answers

Answer 1

An equinox is commonly regarded as the instant of time when the plane (extended indefinitely in all directions) of Earth 's equator passes through the center of the Sun. This occurs twice each year: around 20 March and 23 September.

Answer 2

Answer:

An Equinox is commonly regarded as the instant of time when the plane of Earth's equator passes through the geometric center of the Sun's disk. This occurs twice each year, around 20 March and 23 September.  In other words, it is the moment at which the center of the visible Sun is directly above the equator.

Explanation:


Related Questions

Tropical, temperate, and polar describe climate zones due to
A. latitude.
B. rainfall amount.
C. temperature.
D. snowfall amount.

Answers

Answer:

A. Latitude

Different latitudes on Earth receive different amounts of sunlight, and are a key factor in determining a region’s climate.

2. Could gene therapy someday cure the common cold? Why or why not?

Answers

Answer:

No, it sadly would not be able to do so. Gene therapy cures genetic disorders, so something you were born with. A cold is something you would catch.

Explanation:

No, it sadly would not be able to do so. Gene therapy cures genetic disorders, so something you were born with. A cold is something you would catch.

Which process passes genetic material to offspring?

Answers

Genetic inheritance

The Genetic inheritance occurs due to genetic material, in the form of DNA, being passed from parents to their offspring. When organisms reproduce, all the information for growth, survival, and reproduction for the next generation is found in the DNA passed down from the parent generation.

Can you give me an example of an amphibian close to extinction?

Answers

Answer:

frogs or salamanders

In passive transport, molecules move__ the concentration gradient.

Answers

Answer:

In passive transport, molecules move with the concentraction gradient.

Explanation:

If molecules moved against it would be active transport.

Passive transportation has been defined as the mode of molecule movement across the semi-permeable membrane. "In passive transport, molecules move down the concentration gradient."

What is passive transport?

Passive transport has been the mode of movement of the ions and molecules from the exterior and interior of the cell through the plasma membrane. This mode of transportation has been characterized by the movement of the ions from the region of a higher electrochemical gradient.

The ions tend to move towards the region that lacks the electrochemical gradient, hence it is a movement in the direction of the lower concentration. The solute particles do not external source of energy to drive the movement from higher concentration areas.

It is a type of diffusion that uses the law of Thermodynamics to move the ions up and down the cell concentration. The movement of the oxygen gas in the body cells is an example of passive transportation.

Therefore, the ions move down the concentration gradient in the passive transport.

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what is fertilization?​

Answers

Answer:

Here is the definition of fertilization: the action or process of fertilizing an egg, female animal, or plant, involving the fusion of male and female gametes to form a zygote. Or this one: the action or process of applying a fertilizer to soil or land.

Answer:

the action or process of fertilizing an egg or a female animal or plant, involving the fusion of male and female gametes to form a zygote.

12. Compare and Contrast the relationships between the speed of electromagnetic
and mechanical waves as they travel through different mediums. YOU must
write at least 8 sentences.

Answers

Answer:

Compare and Contrast the relationships between the speed of electromagnetic  and mechanical waves as they travel through different mediums is explained below in details.

Explanation:

As per the mechanism, the waves can be distinguished as electromagnetic and mechanical waves. Electromagnetic waves are those fluctuations that have no mechanism to progress whereas mechanical waves demand a mechanism for their communication. Electromagnetic waves progress in a vacuum whereas mechanical waves don't have.

E. coli Is a species of bacteria that causes many different Infections in humans. Certain E. coli strains have developed resistance to antibiotics,
making Infections with these strains difficult to treat. How do bacteria such as E. coll, which reproduce asexually, galn new tralts such as
antibiotic resistance?
O A. by adapting to changes in environmental conditions without undergoing changes in their DNA
OB. by mutating their DNA in response to environmental conditions to gain beneficial traits
OC. by undergoing spontaneous mutations when they replicate, which increases genetic variation in a population
OD. by producing offspring with new gene assortments from genetic recombination, which increases diversity in a population

Answers

Answer:

The correct answer would be B

Explanation:

Antibiotic resistance in bacteria develops in response to the environment in which the bacteria survives.  

The antimicrobial resistance trait is acquired by any species of bacteria through one of the two ways that are either by making changes in their DNA sequences or through horizontal gene transfer mechanisms.

In the given E. coli gained the trait to develop resistance against antibiotic by making changes in their DNA as once the gene is altered or mutated, the trait can be passed on to the offsprings.

Therefore, Option-B is the correct answer.

Answer:

B. By mutating their DNA in response to environmental conditions to gain beneficial traits

Explanation:

Through the process of natural selection, bacteria such as E coli can gain new traits that benefit them.

This can occur when a DNA mutation occurs, where the mutated gene is actually beneficial to respond to environmental conditions.

Then, these bacteria with the gene will survive and produce more offspring with the same gene. This is how E coli can develop antibiotic resistance.

So, B is the correct answer.

Can I please get the answer ?

Answers

Answer:

The answer is A. water, carbon dioxide, and energy.

Explanation:

Your professor describes an aquatic eukaryote that is single-celled, a primary producer, unable to swim on its own, and is structurally resistant. What organism is most similar to the one described by your professor?

Answers

Answer:

The correct answer is - diatom (protist)

Explanation:

The characteristic described by the professor is most similar to the characteristic of aquatic protist - diatoms. Diatoms are the aquatic protist fall into the eukaryotic type of organisms.

These organisms are single-celled and can not swim on their own. They are a primary producer as they do not depends on others for their food and energy and synthesized themselves.

First one answer gets a brainly. Please look at the picture & answer the question .

Answers

Answer:

A and C

Explanation:

A an C h hchcydydyfugigigifufyfydtdydr dystfufigihigidugi

What does it mean to say that the U.S. Government has a balanced budget?

Answers

Explanation:

A balanced budget occurs when revenues are equal to or greater than total expenses. A budget can be considered balanced after a full year of revenues and expenses have been incurred and recorded.

when a plant is limp ot has lost its water tehough ______if you water ir ir should perk up

Answers

Answer:

A Pothos is what the plant is called

Brainly involved! :) Why is studying animals in the wild considered to be somewhat experimentally "out of control"?
A) There are many factors that cannot be controlled that could influence the study.
B) It does not take place in a laboratory and is therefore not a valid experiment.
C) The test subjects are not trained to behave in a certain manner.
D) The experimenters are as careful with recording their results.

Answers

Answer:

Hmmm i tied between A and C because they both seem correct but since C sounds a little off ima say A  

Explanation:

Answer:

A)

Explanation:

Other answers seem to appear only partially correct or not correct at all. If there's anything unclear, feel free to ask.

How many chromosomes will be found in
each of the two new cells formed as a result
of mitotic cell division?

Answers

At the end of mitosis, the two daughter cells will be exact copies of the original cell. Each daughter cell will have 30 chromosomes. At the end of meiosis II, each cell (i.e., gamete) would have half the original number of chromosomes, that is, 15 chromosomes.

23 pairs of chromosomes will be found in each of the two new cells formed as a result of mitotic cell division.

WHAT IS MITOSIS:

Mitosis is a kind of cell division that results in the formation of two daughter cells with the same number of chromosomes as the parent cell.

Mitosis is used for growth and tissue repair in living organisms. In mitosis, a parent cell divides into two new daughter cells, however, each cell possess the same number of chromosomes as the parent.

In a somatic human cell, there are 23 pairs of chromosomes (46 chromosomes). If this cell undergoes mitotic division, then, there will be 23 pairs of chromosomes in each cell formed.

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Include captive breeding, laws and treaties, and habitat preservation

Answers

These activities include habitat destruction, poaching, pollution, and the introduction of exotic species. Three successful approaches to protecting biodiversity are captive breeding, laws and treaties, and habitat preservation. The number of different species in an area.

This picture shows the weather station model at a location.

Image shows a weather symbol with the following attributes: In the center is a circle that is entirely black. Surrounding this circle are several other symbols and numbers. To the left of the circle is a symbol that consists of three small black dots. In the upper-left corner of the model is the number 57; In the upper-right corner of the model is the number 107; In the lower-left corner of the model is the number 56; in the lower right corner of the model is the number -6. A line segment runs from the central circle through the upper left corner of the model; two smaller line segments - one larger than the other - connect to this line segment to form an 'F'.

What type of weather is expected at the location?

fog
haze
rain
thunderstorm

Answers

Answer:

thunderstorm  

Explanation:

In this location, a thunderstorm is expected, a thunderstorm is a small-scale storm that includes both thunder and lightning.

What is a thunderstorm?

Some thunderstorms have a chance of producing hail and/or tornadoes. Localized heavy snow showers during the winter may also include thunder and lightning. Additionally, it frequently delivers heavy rain as well as violent gusts.

Thunderstorms are ferocious, brief meteorological disturbances that are nearly always accompanied by lightning, thunder, thick clouds, significant amounts of rain or hail, and strong gusts of wind.

Layers of warm, moist air rise in a strong updraft to cooler areas of the atmosphere, whereupon thunderstorms form.

Therefore, according to all directions shown in the image thunderstorm weather is expected at the location.

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What kind of rock is shown in the picture ?
How do you know what type of rock it is ?

Answers

Answer:

Sedimentary

Because it is made is sediments

Explanation:

got it right , edge 2020

The picture shown here is of sedimentary rock. It is visible so because of the identification features of a rock as shown in the image.

What is the formation of rock making process ?

The process is that the soil and the sand that gets accumulated and together with the mud gets collected in order to form a hard mass by the passing of time called as rock.

The kind of rock identification is done on the basis of rock identification aspects that are decided for each type of rock that has been kept under observation. In sedimentary rock, the grains and the displacement of rock grains together gives a larger or smaller appearances.

The types of layers and mud particles joined together along with the ripple marks that have been put together shows the marks on the rocks.

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Silver (Ag) has 47 protons in each atom. Based on this information, which of the following also describes an atom of silver? A. It has no neutrons. B. It has 47 electrons. C. It has 23 neutrons and 24 electrons. D. It has a total of 94 neutrons and electrons. it science by the way.​

Answers

Answer:

B

Explanation:

It has 47 electrons, as proton number is equal/the same as the electron number (proton number=electron number).

Hope this helps! :)

W Within a forest ecosystem, there is a large amount of diversity among members of a warbler species. Of the following stages of meiosis illustrated for a typical cell, which contributes most to diversity among the warblers? Pay special attention to the chromatids.​

Answers

Answer:

Explanation:

How a Forest Ecosystem Matures . Forest ecosystems tend to always be moving toward maturity or into what foresters call a climax forest. This maturing, also called forest succession, of the ecosystem increases diversity up to the point of old age where the system slowly collapses. One forestry example of this is the growth of trees and the entire system moving toward an old growth forest.

A Large amount of warbler species, crossing over between homologous chromosomes, is closely involved in genetic variation. The stage that most contributes to diversity is stage C, where you can see chromosomes after crossing-over.

There are different mechanisms involved in producing genetic variation among descendants, are-

Crossing-over between homologous chromosomes (prophase 1), The Random lining of homologous chromosomes (metaphase 1),

Random fertilization

The Crossing-over events occur between two homologous chromosomes within the equatorial plane and make the daughter cells genetically different from the first one.

The Chiasma is the position where two homologous chromatids interchange genetic information, giving an area for brand spanking new genetic material or information to be provided to descendants.

After crossover, homologous chromosomes get separated again. In the attached image there are four different stages of meiosis.

Stage C is the one that contributes foremost to diversity. We can see that crossover has already occurred between homologous chromosomes and that they have already interchanged segments.

In the image, you will see the difference between chromosomes that have gone through the crossing over mechanism, and chromosomes that have not. The difference in color represents segments interchange and variation.

Therefore, that answer shows the contribution to diversity among the warblers.

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Pls help if u know the answer
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Marley has a vegetable garden in her yard. During a recent storm, heavy rains fall and some of her garden soil is watch away. Which term BEST describes the movement of the soil from one place to another?

Erosion
Runoff
Deposition
Weathering​

Answers

Answer:

runoff

Explanation:

What is an organism’s phenotype? its specific set of physical traits. the number of genes in its genome. its specific set of genes. the number of nucleotides in its genome

Answers

Answer:

A

Explanation:

Hshsnanwjwjwjw

Which organising consume dead organic matter

Answers

Answer:

saprophytes are responsible for consumption of decay or decid matter

A lamp that plugs into a wall socket draws energy which flows through a thin wire in the bulb causing it to glow. What energy transformation are taking place?
choices:
Chemical>light>electrical
Mechanical>sound>light
Thermal>solar>electrical
Electrical>thermal>light

Answers

Answer:

Electrical>thermal>light

Explanation:

Electrical energy refers to energy which is gotten from potential energy. This energy source could be a wall socket.

Thermal energy on the other hand refers to internal energy of a system where temperature is constant.

Light energy is made up of photons which transmits electromagnetic radiation which move in waves and become visible to human eye.

Therefore, the energy transformation taking place according to the question is option D.

How is the blackjack seed suited to its method of dispersal?

Answers

Answer:

Seeds are widely dispersed through the fruits hook-like bristles that embed themselves in clothing and the fur of mammals and feathers of birds. They are also spread by wind, water and soil.

Explanation:

WILL MARK BRAINLIEST!

1. Which factor does not affect species richness on islands?

Age of island
Geographical location
Habitat size
Island shape

Question 2

Which combination of factors will result in an island community with the lowest ecological tolerance?

Upwelling of colder ocean water, increased sunlight
Introduction of invasive species, increased freshwater sources
Increased human population, increased agricultural expansion
Increased colonization, decreased extinction rate

Question 3

The table depicts characteristics of five amphibian species (A–E). Use the information in the table to answer the following question:


Ecological Parameter Species A Species B Species C Species D Species E
Temperature Range 15–30 °C 10–40 °C 15–20 °C 10–30 °C 15–25 °C
Freshwater or Brackish Water Fresh/brackish Brackish Brackish Fresh Fresh/brackish
Food Sources Varied Two mainland species of grasshopper Only island arthropods Varied Varied
Habitat Lakes Estuaries/ponds Estuaries/ponds Lakes Lakes


Which individual(s) of the species listed in the table would likely die if moved to a new island habitat?
Species C and E
Species A and C
Species A only
Species B only

Question 4

Island biogeography studies the ________ on islands.

mountain topography
natural disasters
distribution of species
climate change

Question 5

Increased deforestation reduces the habitat for an arthropod species preferred by an island reptile. Which of the following descriptions predicts the most likely outcome for these two species?

The reptile population increases as arthropods are confined to smaller sections of the island.
The reptile population decreases as arthropods decrease with their habitat.
Island arthropods decrease as the reptile population increases.
Island arthropods and reptiles both increase in the island habitat.

Question 6

Which statement describes a factor in the island biogeographical model?

Dispersing species are more likely to find smaller secluded habitats
Smaller populations are less likely to go extinct
Large islands have less available niches for immigrating species
Islands closer to the mainland have greater colonization

Question 7


Which of the following ideas helps explain the factors that affect island colonization of and species richness for a region?


Species-area effect
Rescue effect
Target effect
Time/stability hypothesis
I and II
II and III
I, II, IV
I, II, III, IV

Answers

Answer:

Ecological tolerance refers to the ability of an organism, or animal to be able to adapt and survive changing environmental conditions.

The combination of factors that would result in an island community with the lowest ecological tolerance would be option B Introduction of invasive species, increased deforestation because with the introduction of invasive species, there would be more competition for natural resources such as food, water, sunlight; and with increased deforestation, there is greater chances of soil erosion.

interact with other living organisms and

interact with the physical environment

Insular biogeography or island biogeography is a field within biogeography that examines the factors that affect the species richness and diversification of isolated natural communities. The theory was originally developed to explain the pattern of the species–area relationship occurring in oceanic islands.

The reptile population decreases as arthropods decrease with their habitat

Migrating species are more likely to find larger habitats over smaller ones. Explanation: The concept of island biogeographical model establishes that larger islands and habitats will have a larger number of species than a smaller island. Larger islands have more tendency to attract new species.The species–area relation, whereby the number of species in a spatial unit increases with that unit’s area, well predates the MacArthur and Wilson theory of island biogeography, having been documented for about 150 years. Two general kinds of models for this relation have been proposed. The first has number of species predicted from an assumed species–abundance distribution and the total number of individuals of all species combined (assumed proportional to area). The second develops species–area relations from MacArthur and Wilson’s species-equilibrium approach.

What is one role of the smooth endoplasmic reticulum

Answers

Answer:

I can give you 3:

1. synthesize lipids

2. metabolizes carbohydrates

3. detoxifies the cell

Explanation:

Hope this helps :)

The period during smooth muscle contraction of sustained tension is referred to as the

Answers

Answer:

I could be wrong but I believe the answer is fused tetanus.

Explanation:

Searched it up, but it could be incorrect.


The kinetic theory of matter states that matter is made up of tiny particles that are in
constant motion. The kinetic theory of matter is most useful in describing which of the
following?


o the relationship between mass and weight
o the relationship between mass and energy
o the relationship between a balance and a scale
the relationship between the motion of particles and their state: solids, liquids, and gases

Answers

Answer:

its D

Explanation:

have a good day

Which physical evidence supports the evolution of Earth due to chemical weathering? (10 points!)

a
Hammer shape of Bryce Canyon rocks

b
Red color of Bryce Canyon rocks

c
Streaks on the face of Wave Rock

d
Concave shape of Wave Rock

Answers

Answer: B

Explanation: It is believed that Thor's Hammer started out as a large plateau 40 to 60 million years ago and has slowly evolved through the natural processes of weathering and erosion to its current formation. The red coloring on the rock is due to oxidation, a form of chemical weathering.

Answer: B

Explanation: It is believed that Thor's Hammer started out as a large plateau 40 to 60 million years ago and has slowly evolved through the natural processes of weathering and erosion to its current formation. The red coloring on the rock is due to oxidation, a form of chemical weathering.

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