Answer:
A biological species is a group of organisms that can reproduce with one another in nature and produce fertile offspring. ... The term species can also be defined as the most basic category in the system of taxonomy.
binary nomenclature, is a formal system of naming species of living things by giving each a name composed of two parts
When are chromosome mostly condensed
Metaphase is a stage of mitosis in the eukaryotic cell cycle in which chromosomes are at their second-most condensed and coiled stage (they are at their most condensed in anaphase).
A sexually mature seahorse can produce thousands of offspring. What is the BEST reason overproduction of offspring by marine organisms is considered to be a reproductive advantage?
It increases competition.
It decreases competition.
It contributes to the organism’s biological success.
It causes stress on the environment which will apply stress to the creature to adapt.
Answer: D
Explanation:
There are large number of predators present in marine environment. Overproduction of offspring contributes the biological success of the organism.
What is overproduction?Overproduction is referred to the production of large number of species which can be physically supported by ecosystem.
Overproduction support survival of the fittest, by improving the genetic line.
Since the predators are more so, only that organism will survive who can adapt according to the that. This can contributes in organism's biological success.
Thus, the correct answer is C.
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how dose ecosystem behave as a system
The main function of leaves is to give beauty to the plant . True or false
Answer:
no,
Explanation:
The main function of a leaf is to produce food for the plant by photosynthesis
Answer:
the answer is false
Anyone know? I keep getting it wrong.
The Answer Is C
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An ecosystem that retains structure & continues normal functions even when environmental conditions change is?
Resilient
Resistant
Reductive
Reconciled
Answer:
Resistant
Explanation:
A good aspect of the ecosystem can either be resistant or resilient when there is a disturbance or a form of deviation from the regular occurrence in the ecosystem structure, function, or both.
For an ecosystem to be resistant means it maintains structures and goes on with normal functions despite the disturbance or alteration in environmental circumstances.
Hence, in this case, an ecosystem that retains the structure and continues normal functions even when environmental conditions change is RESISTANT.
A farmer’s profit is determined by the amount by which the sale value of the ___ ___ exceeds the cost of production and distribution.
Answer:
profits farmer
Answer:
Crop yield
Explanation:
Are data that do not support a hypothesis useful?
A. Yes, because the data prove that the experiment was designed
poorly
B. Yes, because the data provide useful information that can lead to
more testing
C. No, because the data show that the experiment failed
D. No, because the data must be inaccurate
A giraffe has a really long neck and feeds on the leaves of plants. How is having a long neck an adaptation that helps the giraffe to survive? (2 points) a It allows the giraffe to eat the plants faster than other animals. b It allows the giraffe to get food from tall trees that other animals cannot reach. c It helps the giraffe keep balance as it eats plant leaves. d It helps the giraffe run faster when attacked by predators.
Answer:
B.) It allows the giraffe to get food from tall trees that other animals cannot reach.
Explanation:
-
One of the distinguishing characteristics of a giraffe is its long neck. The neck has several important roles and specific functions Feeding. With the aid of its long neck a giraffe is able to reach leaves fruit and flowers high up in Vachellia or Senegalia. Formerly Acacia and other sought after tree species. Giraffe are thus equipped to exploit a band of foliage. So answer would be B
What happens when a muscle contracts?
It shortens
It lengthens
[tex]{\boxed{\mathcal{\red{Answer:}}}}[/tex]
[tex]\sf\purple{It\:shortens. }[/tex] ✅Muscle contractions are defined by changes in the length of the muscle during contraction.When muscles contract, they become shorter, stiffer and thicker.[tex]\bold{ \green{ \star{ \orange{Hope\:it\:helps.}}}}⋆[/tex]
_________ inherited traits that increase an organisms chance of survival, also determine an organism’s niche.
Answer:
adaptation
Explanation:
1 : the act or process of changing to better suit a situation. 2 : a body part or feature or a behavior that helps a living thing survive and function better in its environment. adaptation
Answer: Adaptations
Explanation: Got it correct on ECAD T1 Summer 2023 NM-Biology S2
Which sentence best supports the idea
that fossils help us learn more about
the history of the earth?
Natural geological processes
bring layers of rock to the
surface.
Most animals of our past did
not fossilize.
wit
Speac
The largest dinosaur fossil
ever found was of a
Brachiosaurus.
sroamed the
posed to
slowly
d, the remains
Paleontologists know about
the diversity of life that has existed since the beginning of time
Answer:
D the remains Paleontologists know about the diversity of live that has existed since the beginning of time
Explanation:
fossils assist in understanding of evolution throughout the billions of years that the earth has housed living beings. it allows us to even date history
Describe the following methods of genetic engineering: gel electrophoresis,
Gel electrophoresis is a method of genetic analysis which involves seperating segments of DNA based on their size and charge.
It involves cutting DNA with various enzymes, then placing the DNA in an agarose gel. An electrical current is then run through the gel. Because DNA is a polar molecule the DNA segments will travel through the agarose cell as the current is applied. Larger fragments will travel shorter distances than shorter fragments. Two plates with 2 different DNA samples will be conducted and the orientation of the DNA strands will be used to make an analysis by comparing the 2 plates.
which of these statements about the stars' apparent motion in the night sky are true? choose all that apply ( it could be more than one answer)
A. The orbit of stars around the sun causes stars to appear to move in the night sky.
B. The orbit of stars around the center of the galaxy causes stars to appear to move in the night sky
C. The rotation of earth on its axis causes stars to appear to move in the night sky.
D. The orbit of earth around the sun causes stars to appear to move in the night sky.
i have 1 hour left
The richest layer of soil would be found at
Horizon 0
Horizon A
Horizon B
Horizon C
Bedrock
Answer: The first horizon is the “A“ horizon. It is more commonly called the topsoil. The topsoil is usually the darkest layer of the soil. It is the layer with the most organic material.
Explanation:
could someone pls help and give an explanation on how u found ur answer? ill mark brainiest
Answer: By analyzing the graph i got my answer. The graph shows tat when squirrel population went down the amount of acorns went down also.
Explanation:
Answer:
yeah i would say c because the otherones would not be correct
Explanation:
have a good day :)
The maximum number of wolves that can survive in a particular forest is 230. What is this number called?
limit capacity
carrying capacity
limiting factor
logistic factor
Answer:
B. carrying capacity
Explanation:
Definition of carrying capacity; the number or quantity of people or things that can be conveyed or held by a vehicle or container.
he size of the fox population will . . . a increase. An increase in the size of any population leads to an increase in the sizes of all other populations in an ecosystem. increase., An increase in the size of any population leads to an increase in the sizes of all other populations in an ecosystem. b stay the same. Possums and foxes do not eat each other, so the number of births and deaths in the fox population will stay the same. stay the same., Possums and foxes do not eat each other, so the number of births and deaths in the fox population will stay the same. c decrease. The larger opossum population will leave fewer energy storage molecules for all other populations in the ecosystem, so the fox population will reproduce less. This will lead to fewer births than deaths in the fox population.
Complete question:
In Australia, both opossums and foxes eat rats. The sizes of the populations have been stable for the last 12 years, but recently the size of the opossum population increased. What will likely happen to the fox population? It will . .
increase. An increase in the size of any population leads to an increase in the size of all other populations in an ecosystem. stay the same. Opossums and foxes do not eat each other, so the number of births and deaths in the fox population will stay the same. decrease. The larger opossum population will leave fewer energy storage molecules for all other populations in the ecosystem, so the fox population will reproduce less. This will lead to fewer births than deaths in the fox population. decrease. Fewer energy storage molecules will be available to the fox population from the smaller rat population, so the fox population will reproduce less. This will lead to fewer births than deaths in the fox population.Answer:
Decrease. Fewer energy storage molecules will be available to the fox population from the smaller rat population, so the fox population will reproduce less. This will lead to fewer births than deaths in the fox population.
Explanation:
In the trophic web occurs a process of energy transference through different organisms that places at different levels. Each level feeds on the preceding one and becomes food for the next one. The first link is an autotroph organism or producer. The following links are the consumers: herbivores are primary consumers and feed on producers. Carnivores are secondary consumers and feed on herbivores, and so on. The last links are the decomposers, microorganisms that act on dead animals degrading organic matter.
If any of the links change their population size (increasing it or decreasing it), it affects the superior links and the immediately anterior link.
Also, when two or more species are competing for the same source of food, a change in any of the population sizes will affect the other ones.
In the exposed example, foxes are affected by the increase in the opossum population size, that a direct competitor.
Both species, opossums and foxes, feed on the rats. As long as their population sizes remain stable, no species will be hardly affected by the other. However, when a change occurs, the size of any of the populations is altered, indefectibly affecting the other populations. In this example, the opossum population increased. The more opossums are in the region, the more they will prey on rats. Opossums will become stronger competitors to foxes, whose population remains the same. Rats´ population is also affected because they do not have enough time to reproduce at a higher rate recover. So we have
opossum reproducing at a higher rateopossum population increasingopossums strongly competing with foxesmore opossums feeding on more ratsrats not being able to reproduce at a necessary raterats decreasing in numberfoxes not having enough food (rats) to feed onfoxes survival and reproductive rates affectedfoxes death rate increasingfoxes population decreasing.As more opossums are feeding on more rats, and fewer rats are available for foxes, the fox population is affected. They do not have enough food to feed on and to survive. And they do not have enough energy to reproduce. So the survival and reproductive rates in the foxes population decrease. And as they do not have enough food, their death rate increases. Eventually, the fox population decreases in size.
How is the external parts of the leaf is important in the process of photosynthesis
Answer:
The epidermis has tiny pores called stomata that control transpiration and gas exchange with the air. For photosynthesis, stomata must control the transpiration of water vapor and the exchange of carbon dioxide and oxygen.
Explanation:
Which is a chemical property?
A. Mass
B.flammability
Answer:B flammability
Explanation:
Its a chemical change because the chemicals in the substance change when being lit on fire (example burning wood)
Some populations of Atlantic tomcod fish have an allele that makes the fish resistant to toxic pollutants called PCBs. Tomcod populations in several rivers were analyzed for the presence of this allele. Each river had varying levels of PCB pollution. Which of the following results would best support the conclusion that natural selection is influencing the presence of this allele in the tomcod populations?
A. All of the tomcod in each of the rivers have this allele.
B. The percentage of tomcod with this allele remains the same from year to year in each river.
C. The rivers with high PCB levels have larger percentages of tomcod with this allele than the rivers without PCBs.
D. Eggs from tomcod without this allele can hatch in rivers with or without PCBs, and eggs from tomcod with this allele can only hatch in rivers without PCBs.
Answer:
D
Explanation:
Hope it helps#CARRYONLEARNINGEggs from tomcod without this allele can hatch in rivers with or without PCBs, and eggs from tomcod with this allele can only hatch in rivers without PCBs.
What is Tomcod populations?A benthopelagic piscivore, the Atlantic Tomcod is also known as frostfish or tommy cod. Although large ones are allegedly caught less frequently than they once were in estuary rivers, it is still abundant around the seacoast.
Although anadromous, Atlantic tomcod do not migrate very far between fresh and salt water. In shallow brackish or fresh water, sand and gravelly bottoms are where eggs are laid. Masses of eggs sink to the bottom.
Within 24 hours of hatching, newly hatched larvae swim to the surface to breathe surface air before their pneumatic duct closes. Young-of-the-year may spend their first spring and summer in fresh or barely brackish water, but they eventually move into estuaries and nearshore waters.
Therefore, Eggs from tomcod without this allele can hatch in rivers with or without PCBs, and eggs from tomcod with this allele can only hatch in rivers without PCBs.
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List all the biotic and abiotic factors in figure 4
Answer:
1
Explanation:
In the gold rush of 1849, prospectors found a yellow mineral that appeared to be gold, but was harder and more brittle than gold. What is this mineral that came to be called “fool’s gold”?
Answer:
Pyrite
Explanation:
I hope this helps!
Answer:
Pyrite
Explanation:
I hope this helps!
2. Why do we need carbohydrates ?Name three sources of carbohydrate in our food
Answer:
Carbohydrates are the body's main source of energy. In their absence, your body will use protein and fat for energy. It may also be hard to get enough fibre, which is important for long-term health.
Carbohydrates are found in a wide array of both healthy and unhealthy foods—bread, beans, milk, popcorn, potatoes, cookies, spaghetti, soft drinks, corn, and cherry pie etc.
Explanation:
brainliest pls
Jack found a fossil in a rock that he dug up. The fossil is of a fish.
Which can the fossil tell him about the land when the fish was alive?
Jack found a fossil in a rock that he dug up. The fossil is of a fish. That there was water there once. A fossil record provides the proof of the typical progenitor and its many species.
What are the fossils?Fossils are the preserved remains of flora and faunna whose bodies were seeded in sediments, such as sand and mud, under ancient seas, lakes and rivers.
Fossils also include any preserved trace of life that is usually more than 10 000 years old.
Thus, The fossil is of a fish. That there was water there once.
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What leads to the change in shape of the active site when temperature increases?
A. increase in temperature, means more molecular collisions at the active site
B. Hydrogen bonds between the amino acids break
C. different amino acids in the enzyme
Answer:
A
Explanation:
Proteins are chains of amino acids joined end to end. ... This structure is held together by weak forces between the amino acid molecules in the chain. High temperatures will break these forces. The enzyme, including its active site, will change shape and the substrate no longer fit.
Answer:
B. Hydrogen bonds between the amino acids break
Explanation:
Proteins are chains of amino acids joined end to end. ... This structure is held together by weak forces between the amino acid molecules in the chain. High temperatures will break these forces. The enzyme, including its active site, will change shape and the substrate no longer fit.
what are given off as by-products of cellular respiration?
a. carbon dioxide and water
b. energy
c. food
d. oxygen
Identify whether the statements apply to autotrophs, heterotrophs, or to both autotrophs and heterotrophs.
autotrophs only
heterotrophs only
both autotrophs and heterotrophs
transform energy in sunlight
into chemical energy
autotrophs only
utilize chemical energy in organic
molecules as a source of energy
both autotrophs and heterotrophs
derive energy by consuming
organic matter
heterotrophs only
produce the pigment chlorophyll
autotrophs only
perform a series of reactions
called the Calvin cycle
perform a series of reactions
called the Krebs cycle
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Answer:
1.autotrophs
2.both autotrophs and heterotrophs
3.heterotrophs
4.autotrophs
5.autotrophs
6.both heterotrophs and autotrophs
Explanation:
The statements that apply to autotrophs, heterotrophs, or to both autotrophs and heterotrophs are as follows:
Transform energy in sunlight into chemical energy: Autotrophs only.Utilize chemical energy in organic molecules as a source of energy: Both Autotrophs and Heterotrophs.Derive energy by consuming organic matter: Heterotrophs only.Produce the pigment chlorophyll: Autotrophs only.Perform a series of reactions called the Calvin cycle: Both Autotrophs and Heterotrophs.Perform a series of reactions called the Krebs cycle: Both Autotrophs and Heterotrophs.What are Autotrophs?Autotrophs may be defined as organisms that are capable of producing their own food through the utilization of light, water, carbon dioxide, or other chemicals.
Such type of organisms typically synthesizes their own food with the help of the photosynthesis process. These organisms derive energy by consuming inorganic nutrients and matter.
Heterotrophs are those organisms that consume readymade food synthesized by autotrophs in different modes.
Therefore, it is well described above.
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what are the general characteristics of flowering plants?
ill give brainiest
Answer:
Angiosperms have small pollen grains that spread genetic information from flower to flower. These grains are much smaller than the gametophytes, or reproductive cells, used by non-flowering plants. This small size allows the process of fertilization to occur quicker in the flowers of angiosperms and makes them more efficient at reproducing
Explanation:
Paragraph on climate change
Answer:
Global warming, also known as Climate Change, means the rise in average surface temperatures on Earth. An overwhelming scientific consensus maintains that climate change is due primarily to the human use of fossil fuels, which releases carbon dioxide and other greenhouse gases into the air.
Explanation:
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