The shoals are often more than 7 km long, 1.5 km wide and 30 metres deep and are clearly visible from spotter planes or from the surface. Sardines group together when they are threatened. This instinctual behaviour is a defence mechanism, as lone individuals are more likely to be eaten than large groups.
The shoaling habit includes all the popular, common fish that belong to the Characin family (tetras), Cyprinidae family (barbs and danios) and Melanotaeniidae family (rainbow fish). There are even some species of catfish and cichlids that shoal.
Why do fish swim in shoals?Many kinds of fish prefer to swim together in groups called shoals. ... Shoaling can help fish because there are more eyes for spotting danger from predators or for finding food. Predators also find it more difficult to target a single victim in a big, moving group.
Cathy placed a sample of yeast , a single celled eukaryotes, in a closed test tube containing a solution of glucose. How will the composition of the air in the test tube change as the yeast interacts with the glucose
Imagine you are a systematist who has discovered an unfamiliar
animal. Which of the following observations about the animal will best
help you find its taxonomic classification?
The animal has an unpleasant temperament.
The animal has sharp, pointed teeth.
The animal was found near a herd of deer.
The animal bit you.
Answer:
1) taxonomy
2) species
3) the animal has sharp, pointed teeth
4) the current taxonomic system is based on the Linnaean system
5) he only had two kingdoms, animals and plants
Explanation:
did the quick check
The observation about the animal that will be helpful in finding its taxonomic classification is B. The animal has sharp, pointed teeth.
Taxonomy refers to the science of the classification of organisms into groups. The classification is based on the characteristics that the organisms have.
Therefore, in a situation whereby the person is unfamiliar with an animal, the shape of the teeth of the animal can be used for its classification.
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HELP ASAP!! I have no idea
Answer:
Explanation:
what is the question?
How do environmental factors affect germination in early growth of different food crops
Answer:The germination process is commonly regulated by many abiotic factors, both individually and interactively, and these include light, temperature, pH, burial depth, soil salinity and moisture.
Explanation:
A white flower is pp.What is its genotype?
Answer:
Explanation:
The genotype is recessive time=1/4 of the offsprings have white flowers!
Explanation:
In a broad sense, the term "genotype" refers to the genetic makeup of an organism; in other words, it describes an organism's complete set of genes. ... Humans are diploid organisms, which means that they have two alleles at each genetic position, or locus, with one allele inherited from each parent.
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Multiple choice question, someone please answer
Place the steps below in order from the first to happen to the last that will happen in hemostasis. Chemicals are released from the injury site and from underlying callogen. A blood vessel is severed. Blood and blood components leak out the breaks. The platelets become activated making them spiked and sticky. Fibrin forms a mesh that traps more platelets and erythrocytes, producing a clot. Fibrinogen is converted to fibrin. The smooth muscle in the vessel wall contracts near the injury point, reducing blood loss.
Answer:
A blood vessel is severed.
Blood and blood components leak out the breaks.
Chemicals are released from the injury site and from underlying callogen.
The smooth muscle in the vessel wall contracts near the injury point, reducing blood loss.
Fibrinogen is converted to fibrin.
The platelets become activated making them spiked and sticky.
Fibrin forms a mesh that traps more platelets and erythrocytes, producing a clot.
Explanation:
Hemostasis is the process by which the body prevents and stop blood loss through bleeding.
Hemostasis occurs in three steps:
1. Vasoconstriction: Once a blood vessel is severed or cut, the smooth muscles of the blood vessels start to constrict or get narrower around the severed vessel in order to reduce blood flow through it. This vasoconstriction occurs in response to chemicals released from the cut vessel and the underlying collagen.
2. Platelet-plug formation: the platelets become activated by a glycoprotein called Von Willebrand factor (vWF), which is found in plasma and begin to clump together sticking together. This is known as primary hemostasis.
3. Clot formation: in response to platelet-plug formation, several clotting factors are activated which eventually convert fibrinogen to fibrin. Fibrin is mesh-like and holds the platelets as well as red and white blood cells in place, thereby forming blood-clots over the wound.
The diagram below shows a microscopic view of the lower epidermis of a maple leaf. What type of cell is indicated by label B?
Answer: I think it’s a guard cell
Explanation:
Answer:
Guard cells
Explanation:
Give one substance that plants absorb by active transport
Which gas is most effective in absorbing incoming harmful ultraviolet radiation in the earth's stratosphere before that radiation reaches earth's surface?
Answer:
Ozone (O₃) gas
Explanation:
In the Earth's stratosphere, oxygen gas (O₂) is combined with atomic oxygen (O) to form ozone gas (O₃). This is very important because ozone protects the life on Earth from ultraviolet (UV) radiation from the Sun. UV radiation is high-energy radiation, and it is very dangerous for living organisms. Ozone molecule (O₃) absorbs UV radiation and it breaks down by forming O₂ and atomic oxygen (O) again. In this way, it protects the Earth from nocive radiation.
What are 2 examples Natural selection?
Answer:
Here are some examples of natural selection: In a habitat there are red bugs and green bugs. The birds prefer the taste of the red bugs, so soon there are many green bugs and few red bugs. The green bugs reproduce and make more green bugs and eventually there are no more red bugs.
Explanation:
PLEASE HELP!! I NEED THIS ASAP
Answer:
Molecules Move up the concentration gradient- Passive
Requires no energy- Passive
Requires energy- Active
Molecules move with the flow- Passive
Explanation:
Passive needs no energy while Active does
I need help
I would give brainliest
Answer:
How we supposed to tell you where it go
Explanation:
What was Ptolemy's objection?
Explain why DNA must be replicated.
I need this ASAP please, ty.
Answer:
DNA, found within the nucleus, must be replicated in order to ensure that each new cell receives the correct number of chromosomes.
The diagram below represents a food web. Which organisms are correctly paired with their nutritional roles?
Snakes
Hawks
Mountain
lions
Insect
eating
birds
Rabbits
Seed-
eating
birds
Mice
Bark
beetles
Deer
Grasshoppers
Flower seeds
Vice
Grasses
Mushrooms
Bacteria
Trees
A. hawk-decomposer; insect-eating bird-parasite
B. mouse-autotroph; flower seed-heterotroph
C. mountain lion-consumer; bark beetle-herbivore
D. grasshopper-carnivore; grass-autotroph
Please helpppp meee!!!!its a final
Answer:
C. mountain lion-consumer; bark beetle-herbivore
Explanation:
Food webs contain a series of inter-connected food chains. In a food web, organisms in different trophic levels feed on one another to obtain energy. Based on the diagram attached to this question, the roles of different organism is as follows:
- MOUNTAIN LION: This is a consumer i.e organism that feeds on other animals. This is the case as seen in the diagram that mountain lions are feeding on rabbits and Hawks.
- BARK-BEETLE: This is an herbivore because it feeds directly on the plants as seen in the attached image.
Again PLEASE help I will give Brainliest!!!!!!!!!!!!!!!!
Its the one all the way at the bottom
define natural greenhouse
Answer:
the natural process that warms the earth's surface is known as natural greenhouse.
what provides new variation
Answer:
Mutation
Explanation:
The main cause of variation within a population is usually through genetic mutation.
Mutation is the alteration of the genetic sequence within an organism. It often lead to formation of new genetic patterns and codes.
Most times, environmental influences are paramount to causing genetic mutation within a population.
Other times, it might be due to competition and some other internal factors.
Mutation can be transferred from parents to offspring in most cases.
The unit of electrical charge.
(1 Point)
Capacitor
Coulomb
Electric Dipole
Electromagnet
Ferromagnetic
Generator
Magnetic Force
North and South Poles
Ohms
Voltage
Answer:
coulomb
Explanation:
A coulomb is the SI unit of electric charge. It is equivalent to one ampere-second or the amount of charge transported in one second by a current of one ampere.
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Pls help ASAP I really need help
It's B
And WHY YOU GOT A SAMSUNG COMPUTER BOIII NEED THAT MAC
The DNA of a plant or animal cell is found in which of the following parts of a cell? *
1 point
Chloroplasts
Chlorophyll
Cell wall
Chromosomes
Which statement correctly compares electric charge with electric current?
Answer:
voltage causes electric charges to move from higher to lower potential.
Explanation:
1. What do you predict Earth's interior is like? How do its rocks compare to rocks on the surface? Cite evidence that supports your prediction.
Answer:
Volcanoes, geysers, and hot springs all provide clues about Earth's interior. They also show one of the ways that Earth's layers interact with each other.
Explanation:
A rash can indicate the type of disease present.
True
False
Answer:
true
Explanation:
Answer:False
Explanation:Skin rashes can have causes that aren't due to underlying disease. Examples include hot and humid weather, excess sun exposure, or scratchy clothes that don't fit.
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In sports how do objects change direction .Name 7 ways
Differentiate between the three major climate zone
Answer:
tropical, temperate, and polar
The three major climate zones are tropical, polar, and temperate.
What are the climate zones?A larger pattern, which helps one to understand weather is known as climate. The climate of the region is predicted by the average weather in the location over a long time duration. The three prime climate zones of the Earth are:
TropicalTemperatePolarThe climate region close to the equator with warm air masses is called tropical. In this climate zone, the average temperature in the coldest month is 18 degree C. This is warmer in comparison to the average temperature of the warmest month in the polar zone.
The polar climate zone is found in the North and South poles due to adjacent cold air masses. In this zone, the warmest months average is less than 10 degree C. This is lesser in comparison nto the average temperature of the coldest months in the tropical zones.
The climate zone situated between the North and South poles and the equator is the temperate zone. The average temperature of the coldest months in the temperate zone is lesser in comparison to the tropical zones, while the average temperature of the warmest months in the temperate zone is more than that of the polar zone.
Thus, the three major climate zones are tropical, polar, and temperate.
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related to HELP part c number 1
Answer:
Due to suitable environment of the equator.
Explanation:
Latitude is abiotic factor that has a great impact on the occurrence of fish species as we can see in the graph, the fish species increases as we go towards equator whereas decreases when we go away from the equator. This is because the climatic condition and temperature of water at the equator is suitable and warm so this suitable environment attracts more species to lives there.
A student proposes that the cell types shown here can be classified as to plant,animal,fungal,and bacterial. The student also proposes that an evolutionary relationship can be hypothesized based on the data. What evolutionary relationship and classification is best supported by the data
Answer:
Cell types I and III are animal and fungal cells, which are most closely related since they are eukaryotic cells that are heterotrophic.
Explanation: ¯\_(ツ)_/¯
Historic Westminster Abbey in London, England, has been damaged by the sulfur dioxide and nitrogen oxide in acid rain. This is an example of _____.
biological weathering
chemical weathering
physical weathering
Answer:
i think its chemical weathering
Explanation:
hehe