Answer: to explain what keystone species are important in each ecosystem
Explanation:
The overall theme of the article is to explain what keystone species are important in each ecosystem.
Keystone species is referred to as an organism that defines the ecosystem as a whole. They help define the habitat's biodiversity.
It should be noted that despite the fact that every living organisms depends on each other, some species are more vital than others and when they're removed, there will be a drastic change in the habitat.
Which of these is true of how plants use pollen to reproduce? (
A. The male part of a flower produces pollen.
B. Pollen is large and difficult to transfer between plants.
C. When pollen reaches the male part of a flower, a seed can form.
D. Pollen is only transferred by the wind blowing it to neighboring
plants.
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A. The male part of a flower produces pollen.
thankshope it helpspls mark as brainliestAnswer:
Its A
Explanation:
Pollen from a flower's anthers (the male part of the plant) rubs or drops onto a pollinator. The pollinator then take this pollen to another flower, where the pollen sticks to the stigma (the female part). The fertilized flower later yields fruit and seeds.
HELP! this is a biology question so please answer if you know:)
Answer:
its cells cannot be created or destroyed
Cross a heterozygous axial, hybrid round seed plant with a hybrid axial, heterozygous round seed plant. Only list the phenotypic ratio at the end.
Answer:
The phenotypic ratio is 9:3:3:1
9/16 individuals with axial flowers and rounded fruits, R-A-3/16 individuals with terminal flowers and rounded seeds, R-aa3/16 individuals with axial flowers and wrinkled seeds, rrA-1/16 individuals with terminal flowers and wrinkled seeds, rraaExplanation:
We need to cross a heterozygous axial, hybrid round seed plant with a hybrid axial, heterozygous round seed plant. When referring to a hybrid plant for a trait, we are meaning that the plant is heterozygous for that trait.
Let us assume that round is the dominant trait, codified by a diallelic gene, so
R is the dominant alleler is the recessive alleleLet us also assume that axial is the dominant trait, so
A is the dominant allelea is the recessive alleleCross:
Parentals) RrAa x RrAa
Gametes) RA, Ra, rA, ra
RA, Ra, rA, ra
Punnett Square) RA Ra rA ra
RA RRAA RRAa RrAA RrAa
Ra RRAa RRaa RrAa Rraa
rA RrAA RrAa rrAA rrAa
ra RrAa Rraa rrAa rraa
F1) Among the progeny, we expect to observe the following phenotypic ratio:
9/16 individuals with axial flowers and rounded fruits, R-A-3/16 individuals with terminal flowers and rounded seeds, R-aa3/16 individuals with axial flowers and wrinkled seeds, rrA-1/16 individuals with terminal flowers and wrinkled seeds, rraahelpppppppppppppppppp
Mary pushes her cart across the floor with a force of 150N for a distance of 10m. What is the work done on the cart?
Answer:
1500Joules
Explanation:
Work done, denoted by W, can be calculated using the formula:
Work done (W) = force (F) × distance covered (d)
According to the information in this question, Mary pushes her cart across the floor with a force (F) of 150N for a distance (d) of 10m.
Hence, work done (W) by the cart is:
W = 150N × 10m
W = 1500 Newton.metre (N.m) or Joules (J).
What is the purpose of RNA?
To hate on DNA
To act as a messenger from DNA to the rest of the cell
No file uploads!!!!!!
Answer:
to act as a messenger from DNA to the rest of the cell.
Explanation:
I feel like this one was pretty self explanatory lmfa.o
Plants produce oxygen which animals use. Animals produce carbon dioxide which plants use. Predict the most likely outcome if airborne pollution blocked the sun’s rays so significantly that the percentage of living plants was decreased by 95%.
A. Plants would quickly evolve to consume a mixture of oxygen and carbon dioxide
B. Animals would quickly evolve to begin using carbon dioxide
C. The atmosphere would fill with carbon dioxide, and animals would begin to die.
D. The atmosphere would fill with oxygen, and animals would begin to die.
Answer:
C
Explanation:
A can’t happen because there are barely any plants
B can’t happen because Animals need Oxygen to breathe
D won’t happen due to lack of plants
What is an example of victimology?
A victim's regular routine and mannerisms are analyzed.
A suspect's habits and food preferences are analyzed.
A list of victims is compiled and released to reporters.
A suspect's childhood history is analyzed.
Answer:
A
Explanation:
Criminal profilers use a method called victimology to understand more about the killer. By analyzing behavior, habits, and the temperament of the victim(s), the criminal profiler is able to construct a physiological profile of the person
write adjective forms of :
1)silence
2) Blessing
3) tenderly
4) money
Answer:
Explanation:
silence- speechless
blessing- mystical and great
tenderly- soft
money- grubber
The adjective form of
Slicence is silentBlessing is blessedTenderly is tenderMoney is monetaryAdjectiveAdjectives are those words that are used to describe or modify nouns or pronouns.
There are three forms of adjectives.
They are: absolute, comparative, and superlative.
Learn more about adjectives:
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Sam owns a horse. He suspects the presence of Equine Infectious Anemia (EIA). What should he request his veterinarian to do?
Answer:
The question is incomplete because the options are not given, here are the options from another website.
A .rectal palpation
B.Coggins test
C. castration
D. vaccination
The correct option is B.
Coggins test
Explanation:
This is because coggins test is the test
carried out to check for Equine Infectious Anemia (EIA) antibodies if present in the horse's blood. Blood samples of the horse are collected and must be sent to a state approved laboratory. This test is majorly fine and needed whenever you want to take your horse to a show or whenever you transport your horse across state lines.
What might happen if the number of chromosomes within the cells did not change but new daughter cells were still made? (meiosis)
Answer:
No fertilization occurs.
Explanation:
No zygote is formed if the the number of chromosomes within the cells did not change or remain the same i.e. diploid because for the production of zygote, half number of chromosomes are required in both male and female sex cells or gametes. If the chromosomes are half in both gametes so they fuse with each other forming zygote having diploid cell so we can conclude that for the happening of fertilization process, half number of chromosomes in gametes is necessary if not, no fertilization occurs.
Cytotoxic T cells protect the body by _____________.
A. secreting toxic substances that destroy pathogens
B. phagocytizing invaders
C. activating the complement system
D. making antibodies that float free in the body fluids
What is science to you? like whats your own definition of science
Answer:
The study of anything basically. It is learing new things by observation, experiments, facts, principle, and hypothesis.
Answer:
it's the studying of scientific knowledge
Which list describes the organization within multicellular organisms from least complex to most complex?
A,proteins, organelles, cells, organisms
B,proteins, cells, organelles, organisms
C,cells, organelles, proteins, organisms
D,organelles, cells, proteins, organisms
d
Cells, organelles, proteins, organisms describes the organization within multicellular organisms from least complex to most complex. The correct option is C.
What are multicellular organisms?Multicellular organisms include a mixture of more than one cell, with differentiating groups of cells performing specialized functions.
Early stages of development, cells in humans distinguish towards becoming nerve cells, skin cells, muscle cells, blood cells, as well as other types of cells.
All animals, land plants, and most fungi are multicellular, as are numerous algae, with the exception of slime molds and social amoebae such as the genus Dictyostelium, which are partially unicellular and partially multicellular.
Cells, organelles, proteins, and organisms describe the organization of multicellular organisms in descending order of complexity.
Thus, the correct option is C.
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Please help ASAP! I have about 30 questions more to answer, so It would be so helpful if you answered this question. Thank you!
What do agriculture and urbanization have in common?
Answer:
Agriculture and urbanization both have the goal of expanding human value of living.
Explanation:
Answer:
Explanation:
Basically both of them benefit each other .
Urbanization brings major changes in demand for agricultural products both from increases in urban populations and from changes in their diets and demands. It can also bring major challenges for urban and rural food security.
Hope this helped !
genes for traits that help an organism be more successful reproductively can be expected to ...
A - cause it to evolve into species
B - eventually be eliminated by natural selection
C - become more common in the future
D- cause the extinction of the species
If the person drank a large volume of water, far more than was needed by the body, predict what would happen to glucose, urea, and calcium ion components in urine?
Answer:
there would be less of these components in urine
Explanation:
Women gives birth to a baby boy. A few years later she gives birth to another baby boy. What is the probability that her third child will be a girl? Play your reasoning
Answer:
50 %
Explanation:
It is given that a woman gives birth to a baby boy. Her second child is also a baby boy. Now she is about to give birth to her third child. We have to determine the probability of the child to be a girl.
Here, the probability of the child to be a girl would be 50 % or 1 out of 2.
There are two possibilities and the possibilities would result a boy child or a girl child. So there are two possible outcomes and is equally likely with each child birth.
Also each child birth is an independent event, so the probability that the one results will occur do not depend on the previous births.
What processes can increase the amount of atmospheric CO2?
Answer:
Explanation:
Carbon dioxide is added to the atmosphere naturally when organisms respire or decompose (decay), carbonate rocks are weathered, forest fires occur, and volcanoes erupt.
Carbon dioxide is also added to the atmosphere through human activities, such as the burning of fossil fuels and forests and the production of cement.
Answered by the One & ONLY #QUEEN aka #DRIPPQUEENMO
Hope This Helped !! :)
Natural selection is a very important part of evolution. Select all of the CORRECT statements below
about the theory of natural selection.
More individuals are produced than can survive
Natural selection favors the strongest and fastest individuals in a population
There is genetic variation in populations
Beneficial traits are passed on to future generations
Answer:
Natural selection favors the strongest and fastest individuals in a population
Beneficial traits are passed on to future generations
There is genetic variation in populations
Explanation:
I just did this last trimester in natural science.
For predation to occur, there must be a predator species and a prey species. Define predator and prey and give an example of each.
PLEASE ANSWER THIS DUE BY 3:00 PM PLEASE
THIS IS NOT MULTIPLE CHOICE AND I DID NOT MEAN TO SELECT D.
( I put a better view of the graph)
Answer:
option C suits the best
Explanation:
The answers and why they are correct or incorrect:
A:
Incorrect because it cannot be answered with the graph and does not apply.
B:
Incorrect since the loudest sound ever recorded is not on the graph.
C:
Correct because the graph shows the difference Between normal conversation vs whispering.
D:
Incorrect, because like the first one it cannot be answered with this graph and makes no sense.
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In the presence of oxygen, _____ molecules of ATP can be formed during cellular respiration.
A. 36 to 38
B. 19 to 24
C. 2 to 4
D. 63 to 68
E. 38 to 42
Please help, any unnecessary answers will be reported. Thanks :)
it's c
Explanation:
because there's different types of cold and illnesses so there can be different symptoms each time
What were the old women doing?
In Percy jackosn
Answer:
If it is the scene that I think you're referring to, they were sitting in a group on rocking chairs, cutting yarn.
Explanation:
in Greek mythology, these women are the three Fates, named Clotho, Lachesis, and Atropos. In mythology, a thread represented someone's lifeline, and when the Fates cut your thread, it meant your life was over and you died.
In this specific scene, from The Lightning Thief, the Fates are seen cutting a blue piece of yarn, which makes Percy's friend Grover nervous because he believes they've just cut Percy's lifeline.
what did humans evolve from I am creating a a evolution chain I know this can be considered a unintelligent question I am just not positive on what we evolved from
Answer: Human evolution, the process by which human beings developed on Earth from now-extinct primates. Viewed biologically, we humans are Hono Sapines, a culture-bearing upright-walking species that lives on the ground and very likely first evolved in Africa about 315,000 years ago.
Human evolution is not linear manner it is a web, in the process of evolution primates lead to the emergence of homo-sapiens, which is distinct from the hominid family.
How did humans evolve?Human evolution is observed in a web manner not linear in evolutionary history primates lead to the homo-sapiens which is distinct from another family of hominids.
The hominid family includes great apes that diverged from the gibbons 15-20 million years ago. Evolution involves some studies, genetic studies, and h behavioral studies.
Anatomically it is observed in Africa 300000 years ago humans appeared, these studies were observed anatomically as the origin of humans.
Therefore human evolution is observed in a web manner not linear.
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Can someone name and explain each lymph organ?
Answer:
The lymphatic system consists of all lymphatic vessels and lymphoid organs. For example, the lymph nodes, spleen, thymus as well as the lymphatic tissue found in the small intestine (Peyer’s patches) and throat (adenoid tonsils, palatine and tubal tonsils), to name a few, all represent lymphatic organs.Hence, rather than representing a single organ, the lymphatic system comprises a circulatory network of vessels and lymphoid tissue and cells in every part of the body. It works together closely with the blood-producing (haematopoietic) system in the bone marrow, thereby playing a vital role in immune responses to protect the body from various pathogens. Also, the lymphatic vessel network helps transporting nutrients and waste products in the body.
Answer:
please follow me
Explanation:
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no links pls help! The savanna is home to a variety of plant and animal species. Populations depend on and may compete for biotic and abiotic factors in this biome. Select ALL of the interactions between biotic factors in the savanna.
A) A pride of lions hunt zebra.
B) The yearly rainfall pattern causes wet and dry seasons.
C) Populations compete for food sources at the watering hole.
D) The average rainfall and temperature determine the plant life that can grow in the savanna.
E) Herbivores such as elephants and rhinos depend on the variety of grasses that grow in the savanna.
Answer:
A AND E
Explanation:
Biotic factors found in the savanna biome include all animals such elephants, giraffes, lions, zebras, monkeys and cheetahs. Biotic factors also include all fungi and bacteria found in the savanna.
Answer:
It is A D AND E I know because I just did this
Explanation:
Flowers come in all different sizes, therefore we need different sizes of
Answer: -flower holders ?
Explanation:
WILL MARK BRAINLIEST
Part A: Design a food chain with four trophic levels, and identify the organism in each level. What happens to energy as it travels from the bottom up? (3 points)
Part B: Can humans ever occupy the lowest, or first, trophic level? Why or why not? (1 point)
Answer:
Part A: Primary producer - plants (ex: sunflowers), Primary consumers- herbivores(ex: rabbits), Secondary consumers - omnivores and carnivores (ex: snake), tertiary consumers - omnivores and carnivores (ex: foxes), A-p-e-x predators - can be omnivores or carnivores (ex: coyote)
Energy decreases as it travels from the bottom of an energy pyramid, every time energy passes from one tropic to another, the predator only gets 10% of the total energy, or the stored energy, the rest of the energy has already been used up.
Part B: Humans cannot ever occupy the lowest or first tropic level, because the first tropic level is for producers like plants, humans are not producers and therefore cannot be at the first tropic level.