They are called the Coronal Holes.
Close up, you'll see that a sunspot has a central dark area—called the umbra, which appears dark because it's cooler than the rest of the Sun's surface
Which two structures are not found in animal cells
Cell wall and chloroplasts are found in the plant cell, but they are not found in animal cells.
what color is the beach
Hello,
There are many colors, not just one. The two main colors are blue and tan. Tan is referring to the sand, considering this is a beach, there is going to be sand, and sand takes up a majority if not all the beach. The second color is blue. Blue is referring to the sky and the water.
- I . A -
how does the respiratory system work at the tissue level
my answer was deleted recently for me say i didnt know how to anwser it but i was just trying to explain i didnt really have teh right words for it and id try my best the went me down two ranks you are a very rude person and shouldnt delete peaples answers for notin anyway pal im talking to a mod about this >:(
What farming method is used in dry or desert areas?
(A) chinampas
(B)drip irrigation
(C)wind-powered pumps
(D)aqueducts
Answer: Option B
Explanation:
Desert farming is the practice of developing agriculture in deserts. Agriculture can be defined as the act of irrigation, water supply and farming.
The desert farming is different from the other types of farming and it has been practiced by the person living there.
These practices are to be used very precisely as the water is not available in a plenty amount. Taking into consideration drip irrigation is used in the desert and dry areas.
Drip irrigation can be defined as the modern method by which the micro-irrigation technique in which the water and the nutrients are saved and it allows the water to drip slowly into the roots of plants.
Answer:
B. Drip irrigation
Explanation:
The point or sound or wave originates
Sounds & other waves originate from any vibrating object
Answer:
Wave source
Explanation:
Maxwell shoots a rubber band at his friend Jimmy. Which type of energy is converted into kinetic energy?
A.) Elastic potential energy
B.) Nuclear potential energy
C.) Chemical potential energy
D.) Gravitational potential energy
Final answer:
The energy converted into kinetic energy when Maxwell shoots a rubber band is elastic potential energy.
Explanation:
When Maxwell shoots a rubber band at his friend Jimmy, the type of energy that is converted into kinetic energy is A.) Elastic potential energy. This is because the rubber band, when stretched, stores energy due to its elasticity. Upon release, this stored elastic potential energy is converted into the kinetic energy of the motion as the rubber band flies towards Jimmy. This conversion is in accordance with the conservation of energy, which states that energy cannot be created or destroyed, only transformed from one form to another.
HELP! ANSWER IF YOU KNOW!!
In the ocean, what is a land form similar to a valley known as?
A) It is known as a rift.
B) It is known as the ocean basin.
C) It is known as the mid-ocean ridge.
D) It is known as an underwater valley.
A is the correct answer
The process of blank leads to the information of new species by?
The process of mutation leads to the formation of new species. Species evolve because of the accumulation of mutations that occur over time. Some mutations are harmful where as some are useful which are selected by the nature, nothing but natural selection.
One-quarter of the possible offspring for a cross are homozygous dominant. What genotype do each of the parents have?
1) heterozygous
2)homozygous dominant
3)homozygous recessive
4)homozygous
The answer is Heterozygous:)
which type of rock may contain fossils?
A) igneous
B) sedimentary
C) radioactive
D) geologic
Your answer would be B) sedimentary
Option B - Sedimentary
Explanation
Sedimentary rocks may contain fossils. Sedimentary rocks are kinds of rock which are made by the removal and consequent attachment of organic bits on the ground or bodies of water at the Earth's surface. The particles that compose a sedimentary rock are described as sediment that can be comprised of minerals or organic matter. Sedimentation is the combined name for methods that make these shreds to live in a place.
Why did comets form in the Kuiper belt and not in the asteroid belt
Answer:
Asteroids lie in the asteroid belt and comets lie in the Kuiper belt beyond the orbit of Neptune. The composition of asteroids and comets is different.
Comets are composed of rocks, dust, ice and frozen gases. These are thought to be formed from the debris of the solar system.
On the other hand, asteroids are irregular shape and size rocky bodies lying between the orbit of Mars and Jupiter. There are thought be remnants of a planet which could not form.
Comets formed in the Kuiper belt because of very low temperature and what they are composed of.
We know that animals can be separated into two big groups: vertebrates and invertebrates. An example of each would be a horse and a horse fly. Even though these animals are very different structurally, they have several things in common. Both animals MUST have a method for ____________ because they are both classified as heterotrophs.
A) moving
B) using oxygen
C) getting food
D) reproduction
The correct answer is C.) Getting food. Unlike plants, which have the ability to produce enough food through photosynthesis, heterotrophs, which include all animals (Invertebrates are animals as well) must gain their food from outside sources. Hope this helped!
I agree the answer is C.
which type of tropism aids plants the most in photosynthesis
Tropism is the response of an organism towards any stimuli. stimuli may be light, gravity, temperature etc. In photosynthesis plants are responded towards light, and growth of their shoot system are towards the light source. This type of tropism is called phototropism.
Answer:
Tropism refers to the response a body system of the organism produces according to an external stimulus. Plants shows tropism depending upon the type of stimuli. The stimuli can be sunlight, gravity, water or even touch. The tropism related with the sunlight is phototropism. Phototropism is a typical response of a plant shoot towards the sunlight. The plant shoots grow in the direction of sunlight, hence they show positive phototropism, whereas plant roots grow in direction against the sunlight, they show negative phototropism. Phototropism helps in availing sunlight to plants which is a necessary ingredient required for photosynthesis.
The small mammals, insects, and plants living in the tundra cannot migrate to warmer places to avoid the severe winter conditions. They have very specific adaptive strategies for survival. Identify the adaptation and purpose that is not seen among tundra plants.
A) Low growing plants to avoid the drying winds.
B) Waxy coating prevents evaporative water loss.
C) Tundra plants can only photosynthesize in bright light.
D) Silver-gray hairs on leaves provide a greenhouse effect so plants stay warm.
The correct answer choice is C.) Tundra plants can only photosynthesize in bright light. A majority of tundra plants grow low to the ground to avoid winds, have waxy coatings to help protect against evaporation, and hairs on the leaves to keep warm. Hope this helped!
C) Tundra Plants can only photosynthesize in bright light. That just doesn't make sense, the plants want more energy.
ANSWER THIS FOR ME PLZ BRAINLY GANG :D
What type of sunscreen can best reduce risk of melanoma?
SPF 4 used daily
SPF 4 used once a month
SPF 15 or higher used daily
SPF 15 or higher used once a month
When used as directed with other sun protection measures, broad spectrum sunscreen with an SPF of 15 or higher helps prevent sunburn and reduces the risk of early skin aging and skin cancer (melanoma and squamous cell carcinomas) associated with UV radiation. hope this helped lower the answers
Answer:
The answer is to use SPF 15 or higher used daily. So answer C
Explanation:
I know this because I also am in FLVS and just completed it o and also congrats on only having two semester exams left
Harold makes a very diagram to help him compare and contrast mitosis and meiosis
A. Forms diploid cells
B.creates an even number of cells
C.includes two rounds of cell division
D. Duplicates body cells
Answer:- Option C - Includes two rounds of cell division.
Explanation :-
A Venn diagram is used to depict all possible relations between different sets.In the given venn diagram-
1. The region X will consist of the features that are unique in mitosis.
2. Region Z will consist of features unique to meiosis
3. Region Y consists of features that are common to both mitosis and meiosis.
Meiosis is a process in which a cell undergoes 2 rounds of cell division known as meiosis I and meiosis II to produce 4 cells from a single cell.As a result of meiosis a diploid cell (2n) divides to form 4 haploid (n) cells. Such type of cell division is known as reductional division since, there is reduction in the number of chromosomes.The process of meiosis takes place to produce the gametes that is the sperm and the ovum.Mitosis is a type of cell division in which a single cell goes under a single round of cell division and divides to produce 2 cells.In mitosis a diploid cell thus, gives rise to 2 diploid cells.Mitosis is called equivalent division as there is no change in the number of chromosomes. The process of mitosis takes place to give rise to the cells of the body.Thus, we can conclude that both mitosis and meiosis result in even number of cells that is 2 and 4 respectively.
Mitosis is responsible for duplicating body cells and forming diploid cells.
Meiosis includes two rounds of cell division.
Answer:
the answer is c
Explanation:
Which of these best describes Earth’s crust?
Inner layer consisting of two parts
Middle layer, density increases with depth
Top portion called asthenosphere, thickest layer
Thinnest under the oceans and thickest under continents
D. Thinnest under the oceans and thickest under continents
Explanation - Earth is divided into three layers - crust, mantle and core. Crust is the outer most layer, mantle being the middle one and core is the innermost layer.
Beneath the oceans, crust is thin whereas beneath the continents, crust is the thickest. The density of the Earth's crust is least or minimum as compared to the mantle and core. The composition of crust are as follows -
Solid rock has silicon and oxygen .Oceanic crust has basalt .Continental crust has granite .Answer:
D. Thinnest under the oceans and thickest under continents
Which type of microscope has the simplest way of preparing a sample to examine
Optical microscopes also known as light microscopes has the simplest way of preparing sample. The microscopic slides that are examined is prepared easily when compared to sample preparation of electron microscopes.
Where does the endocrine system release hormones into? Apex
A) The stomach
B) The bloodstream
C) The mouth
D) The pancreas
Answer:
B) The bloodstream
Explanation:
The endocrine system releases hormones into the bloodstream. Option B is correct.
The endocrine system is a collection of glands that produce hormones, which are chemical messengers that travel through the bloodstream to target cells in other parts of the body. The endocrine system releases hormones directly into the bloodstream, where they can be carried to all parts of the body. The stomach, mouth, and pancreas are all organs that are part of the digestive system, but they do not release hormones.
Endocrine glands are glands that produce hormones, which are chemical messengers that travel through the bloodstream to target cells in other parts of the body. The stomach, mouth, and pancreas are exocrine glands, which means they produce substances that are released into ducts that lead to the outside of the body. Option B is correct.
To know more about the Hormones, here
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Which of these best explains why Earth’s inner core is a solid?
Low pressure due to other layers forces the particles to stay closer.
High pressure due to other layers forces the particles to stay closer.
High temperature due to other layers keeps the particles close together.
Low temperature due to other layers keeps the particles close together.
Answer:
The answer is C
Explanation:
lists the levels of organization starting with cells
suppose you are hiking in the hills and you come across a wall of rock. you look closely at the rock and you notice a trilobite fossil embedded in it. what might this fossil suggest yo you about the hills you are hiking in?
A. The hills used to be volcanic and are now dormant
B. The hills, at one time, were under water
C. The hills were once at a much higher elevation
D. The hills are rich in sandstone
Your answer would be B). The hills, at one time, were under water. Trilobite fossils are fossils that are rocks that have bones engraved in them. Trilobites are marine animals that have been extinct for thousand of years. Since they're marine animals, the hill use to have water. You wouldn't see a Trilobite fossil in a land where there has been no source of water.
Hope this helps out :)
The answer would be: B) The hills, at one time, were under water.
Explanation:
- Trilobite were once a marine creature. Trilobite's are extinct, that being said they are no longer living.
- Marine is basically another word for Sea, which Trilobite were a marine creature.
Based on those two statements above, I can conclude that the hill's were once under water.
That being said, the answer is: B) The hills, at one time, were under water.
I hope this helps! :)
-LizzyIsTheQueen
is it true or false that the salinity of an ocean will increase when a freshwater source flows into it.
False if anything the fresh water would decrease
itss falseeeeeeeeeeeeee
Explain the difference between chromosomes, chromatids and chromatin. (3-4 sentences)
Answer:
A Chromosome is a long thread-like structure that are known to form the DNA molecule, and chromatid is one half of two identical copy of DNA. The two chromatids are joined together to form the chromosome. And chromatids are made up of a substance called as chromatin.
Chromosomes and chromatids are closely related to each other and both of them are made up of DNA molecules. Chromosomes carry the genetic material and chromatids form the DNA.
Plants are used on slopes to prevent erosion. Which of these plants would be the best choice to plant on a slope to provide erosion control? A. dandelions B. grass C. oak trees D. hickory trees
The best plant among the following that can help in this is Hickory trees and oak trees.
Answer: Option C & D
Explanation:
When there is a huge land slide or a heavy rainfall the top layer of the soil gets eroded thereby causing a large decline in the fertility of the soil. In addition this also causes a large hindrance for inhabitants of the particular place.
Hence trees like hickory have large roots that bind the soil and prevent the run off through soil erosion. And the best shade trees like oak trees are helps to prevent erosion.
Plants used on slopes to prevent erosion are oak trees and hickory trees.
The correct options are C and D.
What is soil erosion?
Soil erosion is the removal of topsoil with the heavy flow of water.
This flow of topsoil removes the nutrients and good soil.
It depletes the quality of soil.
Thus, to prevent soil erosion, we should plant trees on barren lands.
The roots f tress and plants hold the soil and prevent from flowing it.
Thus, the correct options are C. oak trees, D. hickory trees.
Learn more about soil erosion
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when the process of mitosis is correctly completed, the daughter cells should contain exact copies of all of on organisms genes. which biomolecule contains all of the organisms genes
The biomolecule that contains all of an organism’s genes is DNA. During the mitosis process, the genomic DNA is replicated, ensuring each daughter cell contains an exact copy of the organism's genes. In both prokaryotic and eukaryotic cells, the outcome of cell reproduction is a pair of daughter cells, which are genetically identical to the parent cell.
Explanation:The biomolecule that contains all of an organism’s genes is DNA (Deoxyribonucleic Acid). During the process of mitosis, the genomic DNA is replicated and then allocated into the daughter cells.
This ensures that each new cell contains an exact copy of the genetic material, preserving the organism's complete genetic makeup in each individual cell. Just as you pointed out, when mitosis is correctly completed, the daughter cells should contain exact copies of all of an organism's genes.
In both prokaryotic and eukaryotic cells, the outcome of cell reproduction is a pair of daughter cells, which are genetically identical to the parent cell. This is known as cellular cloning. In bacterial cells, an analogous simpler process called binary fission occurs, where the single, circular DNA chromosome of the bacteria is replicated and passed onto the offspring cells, achieving the same outcome of identical genetic information.
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what does traits will only be expressed if both recessive allies are passed down from each parent otherwise I'll be hidden in dominant allele what does that mean
Recessive Inheritance
When a trait is recessive, an individual must have two copies of a recessive allele to express the trait. Recessive alleles are denoted by a lowercase letter (a versus A). Only individuals with an aa genotype will express a recessive trait; therefore, offspring must receive one recessive allele from each parent to exhibit a recessive trait. One example of a recessive inherited trait is a smooth chin, as opposed to a dominant cleft chin. Let (S) represent the dominant allele, and (s) represent the recessive allele. Only (ss) individuals will express a smooth chin. To determine the probability of inheritance of a smooth chin (or any other recessive trait), the genotypes of the parents must be considered. If one parent is heterozygous (Ss) and the other is homozygous recessive (ss), then half of their offspring will have a smooth chin. In other words, any of the offspring will have a fifty percent chance of having a smooth chin. A Punnett square can be used to determine all possible genotypic combinations in the parents.
Hope it helped!!
A wolf pack hunts,kills, and feeds on a moose. In this interactions, the moose is a?
Answer:
Prey.
Explanation:
If a pack of wolves hunt then whatever they kill is called the prey,thus meaning the mosse is the prey because thaat is what the wolves killed.
Which organ produces amylase?
pancreas
Amylase is an enzyme that helps to break down starch into simpler sugars. Amylase functions within the mouth or the small intestine. However, amylase is produced in either the salivary glands, pancreas, or small intestine. Amylase is one of the many different kinds of enzymes that are found within the body.
Where do joint capsule receptors send proprioceptive information?
TO. YOUR. BRAIN. have a nice day?