Density independent factors are events that affect the carrying capacity but do not depend on population size. A forest fire is a density-independent factor.
What are the limiting factors?
Limiting factors are environmental conditions that act directly on populations and individuals, limiting their distribution and growth.
These factors might be either biotic or abiotic and affect natality and mortality rate, migration, etcetera.
Limiting factors might be a result of the population density or might be dense-independent.
When talking about dense-independent limiting factors we are referring to events that do not depend on the number of individuals or population density.
These are events that affect the carrying capacity. They occur independently of population size, and are due to other factors.
To name a few, we can mention,
abiotic factors ⇒ temperature, pH, salinity, humidity, radiation, etcetera.natural disasters ⇒ fires, volcanic eruptions, flooding, etceterahuman impactWhen talking about dense-dependent limiting factors we are referring to biotic factors and the interactions established between species that control other species' growth.
These are, for instance,
competition,parasitism, andpredationAccording to this information we can assume that a forest fire is a density-independent factor. It can be considered a natural disaster.
Natural disaster causes damage to an ecosystem, reducing the available resources such as food or shelter, and consequently decreasing the number of individuals. Natural disasters reduce the carrying capacity of the environment.
You can learn more about density-independent factors at
https://brainly.com/question/6675324
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https://brainly.com/question/16682556
A few characteristics of a type of reproduction are shown below:
1. Involves two organisms
2. Gametes are not produced
3. Cell divides only by mitosis
4. Offspring show genetic variation
5. Involves one parent only
Which of the above are characteristics of asexual reproduction? (4 points)
1, 2, and 3
1, 3, and 4
2, 3, and 5
2, 4, and 5
Answer:
C. 2, 3 and 5 would be the answer
Answer:
2, 3, and 5 because sexual reproduce needs two parents, variation, and to produce gametes, asexual reproduction is the opposite
Why are recessive traits shown less than dominant traits?
Answer:
Dominant traits are always expressed when the connected allele is dominant, even if only one copy of the dominant trait exists. Recessive traits are expressed only if both the connected alleles are recessive. Recessive traits are found in fewer individuals as it can only be expressed in hom.ozygous condition. In a monohybrid cross between heterozygotes there is only 25% chance of recessive trait being expressed and 75% chance of dominant trait being expressed. Therefore in a population dominant trait is more apparent.
Explanation:
(Brainliest plz?)
Help me outttt please?
If worldwide deforestation is not regulated, what could most likely result? *
A. Acid rain could lower the pH of rivers and lakes to dangerous levels for aquatic life.
B. CO2 levels in the atmosphere could increase and contribute to global warming problems.
C. Plants and animals could become better adapted to living in desert conditions.
D. Future generations of humans could have an excess of wood and paper products.
B. CO2 levels in the atmosphere could increase and contribute to global warming problems.
Explanation:
I think B is the best answer. Hope you like my answer.
which of these is a form of liquid precipitation
Explanation:
Rain and drizzle are the form of liquid precipitation.Can anyone help me with this science work it’s just 3 questions?!
The arthropods are the most successful group of animals; several key features explain their success. Check all of the features that one would use to classify members into this phylum. Check All That Apply Growth takes place through ecdysisGrowth takes place through ecdysis A rigid exoskeleton made of chitinA rigid exoskeleton made of chitin Closed circulatory systemsClosed circulatory systems Jointed appendagesJointed appendages A rigid exoskeleton made of keratinA rigid exoskeleton made of keratin Segments specialized into functional tagmataSegments specialized into functional tagmata
Answer:
The correct answer is -
growth takes place through ecdysis
a rigid exoskeleton made of chitin
jointed appendages
segments specialized into functional tagmata
Explanation:
Arthropods are the largest phyla of the animal kingdom and comprise 80 % of the total animals known. It includes crabs, lobsters, insects, and many other invertebrates. The key features of this phylum make them special and unique to other groups.
These organisms show growth through molten and ecdysis which is the removal of old skin with growth. These organisms have an open circulatory system and the outer layer is made up of chitin that provides a tough exoskeleton. Arthropods have jointed appendages instead of branched or single body. These segments are fused togather and these functional fused segments called tagmata.
Can someone help MMEE!
Answer:
D
Explanation:
This may seem difficult to answer at first, cuz A and even B sounds plausible, but the relative direction of where she's drawing the picture is not known. And we know that the sun does not rise and set in the same place everyday. So the best answer would be D
Protein molecules on the surface of microorganisms are called
amino acids
antibiotics
antigens
antibodies
Meiosis in human males results in
A. three haploid cells and one diploid cell.
B. three diploid cells and one haploid cell.
C. four haploid cells.
D. four diploid cells.
23. Each trait has two alleles. How many alleles would have to be a dominant allele for the offspring to express a dominant trait
Answer:
One (1) of the alleles
Explanation:
According to Gregor Mendel in his series of experiments, he discovered that two forms of a gene called ALLELE contributed to the formation of a trait. However, in his law of dominance, Mendel stated that one allele called the DOMINANT ALLELE has the ability to mask the phenotypic expression of the other allele called RECESSIVE ALLELE when present.
This means that, in a combination of both alleles in a gene (heterozygous), only one allele coding for a phenotypic characteristics will be expressed. This phenotype is called the DOMINANT TRAIT.
For example, if tall allele (T) is dominant over the short allele (t), the tall trait will be expressed when the genotype is "Tt" meaning that only one of the alleles would have to be a dominant allele for the offspring to express a dominant trait.
DNA polymerase only travels in the__________to________direction.
Answer:One Direction
DNA Polymerase Only Moves in One Direction
Explanation:
After a primer is synthesized on a strand of DNA and the DNA strands unwind, synthesis and elongation can proceed in only one direction. As previously mentioned, DNA polymerase can only add to the 3' end, so the 5' end of the primer remains unaltered.
Fact for each one.
Aquatic Ecosystems
Estuaries
Features/Facts:
-
-
-
Biotic factors:
-
-
-
Abiotic factors:
-
-
-
Intertidal
Features/Facts:
-
-
-
Biotic factors:
-
-
-
Abiotic factors:
-
-
-
Arctic
Features/Facts:
-
-
-
Biotic factors:
-
-
-
Abiotic factors:
-
-
-
Answer:
The answer is down below.
Explanation:
Estuaries
-More than 80 percent of all fish and shellfish species use estuaries as primary habitat or as a spawning or nursery ground.
-Estuaries are often called the “nurseries of the sea”.
-Estuaries and their surrounding wetlands are bodies of water usually found where rivers meet the sea.
Abiotic factors
In an estuarine ecosystem, these factors are light, oxygen, water, nutrients, temperature, salinity, and space. So just divide these into three.
Biotic factors
These include plants and animals such as shrimp, fish, and oysters
A medicine e.g penicillin which is developed from organism e.g bacteria or fungi and used to fight infections caused by either bacteria or fungi give the correct biological term
Answer:
Penicilium chrysogenum
Explanation:
Answer:
They are generally called antibiotics.
Sheep are herbivorous. What can you Infer from this?
Answer:
Since sheep’s are herbivore, it can be inferenced they only eat plants. Due to the fact they only eat plants, means they are primary animals, and a have lots of predators. They have lots of predators due to the fact they are so low in the food chain, they are right above plants.
why are fungi not included in Kingdom plantae
Answer:
cell walls of the fungi are made of chitin not cellulose
fungi absorbs nutrients from other organisms whereas plant make their own food
Answer:
please make sense
Explanation:
In protein synthesis, the role of the ribosome is to: A. Translate mRNA into tRNA B. read the mRNA code C. Pick up and carry amino acids D. Translate tRNA into amino acids PLEASE HELP!
Answer:
B. read the mRNA code
Explanation:
Ribosomes are cellular organelles present in both eukaryotic and prokaryotic cells. The ribosome is the site of protein synthesis in a living cell i.e. it is where the translation of mRNA into protein (amino acids) occurs.
The mRNA molecule is read in the ribosome with the aid of another type of RNA molecule called tRNA (transfer RNA). The tRNA in the ribosome reads the mRNA codon using its anticodon and carries the corresponding amino acid to the growing polypeptide chain. Therefore, the ribosomes play the role of reading mRNA code during protein synthesis.
During primary succession it is the competition of resources that leads to changes/replacement of species in area over time
True or false?
Answer: False
Explanation:
During Primary Succession, an area that has just been newly exposed or is rock that has just formed newly, gets colonized for the first time by organisms.
This is not driven by competition for resources because only certain organisms can even survive in the area in the first place such as lichens or plants which then convert the area to a more habitable form for other organisms over a period of centuries.
Answer:
True
Explanation:
I watched the video.
Hope this helps! :)
What are haploid cells, and which cells are haploid?
A. haploid cells have the normal amount of DNA; these are the parent cells.
B. haploid cells have half as much DNA as a normal cell; these are the parent cells.
C. haploid cells have the normal amount of DNA; these are the four daughter cells.
D. haploid cells have half as much DNA as a normal cell; these are the four daughter cells
Answer:
A
Explanation:
i am sorry if this is wrong
The first forms of life on Earth were thought to
be_________.
Answer:
A single celled plant.
Hope this helps!!!!
Answer:
Prokaryotes
Explanation:
Prokaryotes existed for billions of years before the creation of animals and plants.
write an argumentative essay which says without photosynthesis there is no life
Explanation:
you could include the points such as,
--> photosynthesis produces O2 which is necessary for respiration.
-->photosynthesis reduces the amount of CO2 in the atmosphere as it uses it up in the reaction. this controls the atmospheric rate of CO2 and reduced the greenhouse effect.
--> plants are the primary producers in a food chain and so, photosynthesis plays a primary role in the stability of food chains as they're the primary source of glucose as all the higher consumption is based off the producer.
--> virtually seeing, all the energy within the biosphere is based off plants that depends on photosynthesis.
--> If photosynthesis ceased, there would soon be little food or other organic matter on Earth, most organisms would disappear, and Earth's atmosphere would eventually become nearly devoid of gaseous oxygen.
there could be more but this is all I could think of.
hope it helps. :)
Describe the impact medical and ethical issues pertaining to biotechnology
Answer:
Ethical issues that arise from modern biotechnologies include the availability and use of privileged information, potential for ecological harm, access to new drugs and treatments, and the idea of interfering with nature. Applications include agriculture and health care.
Helppppppp Pleaseeeee
Answer: Beaks---->Evolution, Natural Selction, Genetic Drift, Behavioral Isolation, n Non-random mating...
Explanation:
Darwin observed many discoveries like the Galapagos tortoises, iguanas, penguins, crabs, etc...But one of the most important ones that definitely helped to see the evolution and the process of natural selection is the Galapagos finches they changed a lot mainly because of environmental changes. The Galapagos Islands are special to evolutionary history firstly because there are a lot of different sizes and colors in birds but the main focus was that after Earth was a Pangea, all land united, genetic drift occurred in the Galapagos island meaning that a small population was 'trapped' inside with no way of getting new traits though that's not exactly right because we not only change genetically but also by environmental changes and humans change it too of course(like hunting). Another important discovery that was found there wasn't only hints of evolution and natural selection but also behavioral changes especially in mating, some birds sing or dance it really depends but if some animals don't mate then new species are formed that's one of the reasons why it created a lot of diversity; Another reason to the topic of reproduction is non-random mating, some organisms are looking for some specific location or phenotypes in their mates if they don't find it they look for them in their own species which can cause the extinction of that species or spread it.
Two short haired guinea pigs are mated several times. Out of 100
offspring, 25 of them have long hair. What are the probable
genotypes of the parents?
Answer:
Both heterozygous, with the trait for short hair being dom over the long hair
Explanation:
25% would be homzygous dominant, 25% homzygous recessive and 50% heterozygous
i think this is wrong but i tried
Which of the following processes below enable the kidneys/your excretory system in maintaining homeostasis in the human body? Group of answer choices acting like a pump to send much needed heat and blood to other parts of the body providing the outlet for oxygen movement from one vital organ to another moving food down the esophagus towards the stomach and then intestine for processing receiving chemical signals to reabsorb water when dehydrated
Answer:
The kidneys maintain homeostasis by controlling the amount of water, ions, and other substances in the blood. They also secrete hormones that have other homeostatic functions.
Explanation:
Hope this helps :)
Answer:
The kidneys are essential for cleansing the blood and eliminating urine waste from the body. They also have other important functions that maintain homeostasis in the body including regulating acid-base balance, the concentration of electrolytes, controlling blood pressure, and secreting hormones.
The____________
is when a few individuals in a population colonize a new location that is
separate from the old population.
a. Founder effect
b. Bottleneck effect
C. Asexual reproduction
d. Sexual reproduction
How do human activities lead to primary succession?
Answer:
This succession is influenced by environmental factors such as soil type, water regimes, vegetation history, climate, and invasive species. Humans affect all of these factors. The human dimension introduces the greatest amount of unknown variability. Forest lands are under increasing development pressure.
Explain the specilisation of vili
Answer:
Villus, plural villi, in anatomy any of the small, slender, vascular projections that increase the surface area of a membrane. ... The villi of the small intestine project into the intestinal cavity, greatly increasing the surface area for food absorption and adding digestive secretions.
1-5 questions
Help plss
______ is/are important in blood clot formation.
a.
Plasma
c.
Platelets
b.
White blood cells
d.
Hemoglobin
Please select the best answer from the choices provided
A
B
C
D
Answer:
Platelets
Explanation:
Blood clotting, or coagulation, is an important process that prevents excessive bleeding when a blood vessel is injured. Platelets (a type of blood cell) and proteins in your plasma (the liquid part of blood) work together to stop the bleeding by forming a clot over the injury.