Explanation:
Knowing that the human diploid cell has 2n = 46 chromosomes, Indicate the number of:
a- Chromosomes in each cell obtained at the end of mitotic cell division and the number of chromatids per each chromosome.
b- Chromosomes and chromatids per each chromosome in the cell during metaphase of mitosis.
c- Chromosomes and chromatids per each chromosome in the cell during G1 of interphase.
d- DNA molecules in the cell during G1 of interphase and prophase of mitotic cell division.
e- DNA molecules in the gamete.
f- DNA molecules in the cell during Metaphase 1 of meiosis 1 and Prophase 2 of meiosis 2.
g-Chromosomes and chromatids per each chromosome in the cell during Metaphase 2 of meiosis 2.
h- Chromosomes and chromatids per each chromosome in each cell obtained at the end of meiosis 1.
i-Chromosomes and chromatids per each chromosome in each cell obtained at the end of meiosis 2.
PLEASE HELP ASAP
Which of the following would provide the best evidence to support the claim that acid rain has a long-term effect on the stability of ecosystems?
Extinction of aquatic and terrestrial organisms would occur, decreasing species diversity and ecosystem stability.
The mutation rate would increase and new species would evolve, destabilizing ecosystems.
The pH level would increase and become intolerable to organisms, leading to decreased species diversity and ecosystem stability.
Habitat loss would occur, forcing organisms to adapt to new surroundings until the ecosystem eventually stabilized.
Answer:
A
Explanation:
Extinction of aquatic and terrestrial organisms would occur, decreasing species diversity and ecosystem stability.
_____ from the male plant must land on the _______ of the female plant in a process called _______. *
A. Pollen, stigma, pollination
B. Pollen, stigma, fertilization
C. Pollen, anther, pollination
D. Pollen, ovary, pollination
Answer:
A. Pollen, stigma, pollination
Explanation:
Answer:
The answer is A and Reminder to be happy, go drink some water, eat some food and relax! You are loved :) <3.
Explanation:
Which field of biology has caused some ethical concerns?
A. biotechnology
B. ecology
C. molecular biology
D. evolution of disease
Answer:
d
Explanation:
Explanation:
The development and regulation of biotechnology has triggered many discussions from different academic fields, such as economics, law, politics and even history. Specifically, however, the genetic engineering of living cells, plants, animals and human beings has brought ethical concerns and issues to the foreground.
A student keeps a record of the phases of the moon for one month. On the first night of the student's observations, the full moon is visible in the sky. After the full moon, which of these phases will the student observe next?
F Waxing crescent moon
G Waxing gibbous moon
H Waning crescent moon
J Waning gibbous moon
What else should a grower do to make sure that the plants are photosynthesising at the optimum rate ?
Answer:
7 thats answer
Explanation:
What motion does the graph above show the object during the time interval from 3
seconds to almost 4 seconds?
Answer:
I am not 100% sure but my best guess would be the object is moving backwards/falling.
Explanation:
The graph shows the position of the object going from almost 9.0 to below zero. There are many situations that could fit this. Such as, something going above and below sea level. OR something moving in front and behind a certain point. My best guess would be moving backward towards an object OR falling from a certain point.
Where in the flower are pollen grains produced?
A. Sepals
B. Ovaries
C. Ovules
D. Stigmas
E. Anthers
Answer:
E. Anther
Explanation:
The main function of the anther of a flower is to produce the pollen of flowering plants. The pollen contained within the anther provides the sperm necessary for reproduction.
Are courgettes annuals or perennials? And why?
Answer:
Crops such as zucchinis and cucumbers are known as annuals because their natural life cycle only lasts a season.
Explanation:
what is electromagnetism
Answer:
Electromagnetism is a branch of physics involving the study of the electromagnetic force, a type of physical interaction that occurs between electrically charged particles. ... At high energy the weak force and electromagnetic force are unified as a single electroweak force.
The difference between Secondary and Primary Succession is...
A. Primary only happens after a fire.
B. Secondary is starting from scratch with big rocks.
C. Secondary begins with soil, but no biotic (living) things.
Answer:
C.
Explanation:
This is because primary succession is newly formed logs that are colonized by living things. Seconday succession is there were living things there once but due to disturbance life is lost and started over which could take decades.
Answer:
C. Secondary begins with soil, but no biotic (living) things.
Explanation:
The difference between Secondary and Primary Succession is Secondary begins with soil, but no biotic (living) things.
Which of the following is considered an ocean contaminant?
A)
sewage
B)
industrial waste
C)
fertilizer
D)
soaps
E)
all of the above
What are the 3 components/materials and energy needed to assemble carbohydrates?
Answer:
carbon, hydrogen, and oxygen.
Explanation:
Am I healthy? Do you think so
Maybe, haha. i dunno. why do you need to know?
☁️ Answer ☁️
U ARE SHININGGGGGG
But you shouldn't be posting ur pic on Brainly
Where in the plant does photosynthesis occur? *
A. Leaves
B. Flower
C. Roots
D. Stem
Answer:
It occurs in the leaves
A. Leaves
Explanation:
Even though the Earth's Inner core is hotter than the
liquid outer core, it is still solld because -
Answer: The inner core is solid because it is made of very dense, or heavy, materials - like iron and nickel. Even though it is very hot, these materials don't "melt" very easily, so they stay solid. Answer 3: It turns out that many materials can be a solid at a higher temperature if the pressure is also higher.
Explanation:
name some component of the blood that transports lactic acid
Answer:
plasma
Explanation:
the plasma circulates dissolved nutrients such as glucose, amino acids and fatty acids.
Which of the following happens during interphase? A prophase B cell growth C cytokinesis D cell division
Answer: B Cell growth brainliest?
Explanation:
Windy weather during summer season is
pleasant, why
?
Answer:
because it cools you off when its too warm and overall gives a sense of calm
Identify which of the following statements are true about plant and animal cells. Select all that apply.
a. Plant cells have chloroplasts.
b. Plant cells have one large vacuole, while animal cells have several smaller vacuoles.
c. Mitochondria can only be found in animal cells.
d. Cytoplasm can only be found in plant cells.
e. Plant cells have cell walls.
Answer:
A-True
B-True
C-False
D-False
E-True
Explanation:
The true statements about plant and animal cells are:
Plant cells have chloroplasts.Plant cells have one large vacuole, while animal cells have several smaller vacuoles.Plant cells have cell walls.CELL:
Cell is regarded as the basic and fundamental unit of life according to the cell theory. Every living organism must possess a cell, which contains organelles responsible for performing specific tasks. Cells of plants and animals are different in some ways and similar in other ways. Some of the true facts about plant and animal cells in accordance to this question are:Plant cells have chloroplasts while animal cells do not. This is why plant cells can synthesize their own food via photosynthesis. Plant cells have one large vacuole located at the centre of the cell while animal cells have several smaller vacuoles scattered throughout the cell.Plant cells have cell walls while animal cells do not. The cell wall of plants is made up of cellulose and gives the cell shape and strength.
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The High Plains have over 20,000 ____________, that are important stopover habitat for migratory birds like ducks and geese.
Answer:
Playa lakes.
Explanation:
A habitat can be defined as the natural living location or place of both living and non-living organisms. Some of the main components that makes up a habitat required for an organism to survive includes space, shelter, water and food.
Migratory birds refers to a group of bird leaving there natural living location or place in search of resources such as food and water in order to survive.
The High Plains have over 20,000 playa lakes, that are important stopover habitat for migratory birds like ducks and geese in search of scarce feeding resources which includes water and food. Playa lakes comprises of living organisms such as invertebrates, seeds and plants, that provides the optimum level of energy required by the migratory birds that are flying from one location to another.
Which statement correctly describes a difference between asexual and sexual reproduction?
Answer:
B) Asexual reproduction involves one parent, and sexual reproduction involves two parents.
Explanation:
In asexual reproduction, offspring formed from only one parent whereas, in sexual reproduction, offspring produces from two parents. The offspring is identical to the parent in asexual reproduction while on the other hand, offspring is different from their parents. Sexual reproduction increases the chances of survival of the species due to genetic diversity whereas asexual reproduction has limited chances of survival due to lack of genetic diversity.
Asexual reproduction involves the production of offspring without the involvement of gametes, resulting in genetically identical offspring. On the other hand, sexual reproduction involves the fusion of gametes from two parents, resulting in offspring with genetic variation.
Asexual reproduction and sexual reproduction are two different methods of producing offspring in living organisms. Here are the differences between them:
1. Asexual reproduction:
Asexual reproduction involves the production of offspring from a single parent without the involvement of gametes (sex cells). This means that the offspring are genetically identical or clones of the parent.
Examples of asexual reproduction include binary fission in bacteria, budding in yeast, and regeneration in starfish. In binary fission, a single-celled organism divides into two identical cells. In budding, a small bud grows on the parent organism and eventually detaches to become a new individual. In regeneration, an organism can regrow a lost body part and develop into a complete organism.
2. Sexual reproduction:
Sexual reproduction involves the fusion of gametes from two parents to produce offspring. Gametes are specialized sex cells, such as sperm and eggs, which contain half of the genetic material of the parent.
In sexual reproduction, the offspring inherit genetic information from both parents, leading to genetic variation. This genetic diversity is important for the survival and adaptation of species over time.
Examples of sexual reproduction include humans, animals, and many plants. In humans, sperm from the male parent fertilizes an egg from the female parent, resulting in the formation of a zygote. The zygote then undergoes development to form a new individual with a unique combination of genetic traits.
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How is Cytochrome C, which is an important enzyme in cellular respiration, used to provide evidence for evolution. bones (homologous structures) are used for similar uses if the organisms are more closely related bones (homologous structures) are used for similar uses if the organisms are more closely related sections of DNA are more similar in organism more closely related. sections of DNA are more similar in organism more closely related. organisms that are more closely related are found with similar embryonic structures. organisms that are more closely related are found with similar embryonic structures. fossils in various layers are more closely related if they are in the same layer
Answer:
Sections of DNA are more similar in organism more closely related
Cytochrome c is used to provide evidence for evolution because most animals have this protein and is has undergone very little changes in these organisms such that more closely related species have the most similarity in amino acid sequence of cytochrome c
Explanation:
Cytochrome c is a protein found in mitochondria and is an important enzyme in cellular respiration. Cytochrome c is a highly conserved (have undergone very little changes) protein that in found in many different species of organismsmsuch as plants, animals, and many unicellular organisms. Cytochrome c is made up of about 104 amino acids linked together by peptide bonds. Being a small-sized molecule (molecular weight about 12,000 daltons) also makes it easier for evolutionary studies to be conducted on it.
Organisms that are most closely related have the most similarity in the amino acid sequence of the cytochrome c molecule. The amino acid sequences in cytochrome c molecule present in organisms is as a result of the information in their DNA.Thus, sections of DNA are more similar in more closely related organisms.
In this phase, two nuclear membranes are reforming and the cytoplasm starts dividing.
Answer: Cytokinesis
Explanation:
the cytoplasmic division of a cell at the end of mitosis or meiosis, bringing about the separation into two daughter cells.
please help!!!!!!!!!!!!!!!!!!!!!!!
Answer:
Sturgeon and blue crabs
Answer:
Sturgeon and blue crabs
How are gravity and friction similar?
Answer:
gravity and friction is similar cause one of the main things they have in common is when you have friction that's gravity pulling you or they thing down.
Explanation:
to be honest I just thought of this of the top of my head so I hope it helped in some ways.
do people consume little or much nowadays? give examples
describe various stages of mitosis
☁️ Answer ☁️
The Phases Of Mitosis
Interphase
Prophase
Metaphase
Anaphase
Telophase
cytokinesis
"Mitosis, which takes place in the cell nucleus, consists of many steps; these steps in turn, have several parts to them. The main steps in mitosis are: interphase, prophase, metaphase, anaphase, telophase and cytokinesis"
Hope it helps.
Have a nice day noona/hyung.
Which of the following is not an example of coevolution? A. Prey evolve faster running to escape, and predators evolve to smarter at catching prey. B. Predators evolve heavy jaws to crunch the bones of herbivores, and herbivores evolve thick fur for warmth. C. Plants evolve chemical defenses and herbivores evolve ways to neutralize the chemicals. D. Insects evolve green wings to blend into the environment, and predators evolve better eyesight to find the prey. Explain why.
The statement 'predators evolve heavy jaws to crunch the bones of herbivores, and herbivores evolve thick fur for warmth' is NOT an example of coevolution.
Coevolution is an evolutionary process where two or more species evolve in a parallel manner.Coevolution is caused by an evolutionary race between species.In general, coevolution is caused by selective pressures between one taxonomic group on another.In conclusion, the statement 'predators evolve heavy jaws to crunch the bones of herbivores, and herbivores evolve thick fur for warmth' is NOT an example of coevolution.
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Identify the preferable tonicity of these replacement drinks (isotonic, hypertonic or hypotonic)
Answer:
isotonic [same concentration]
hypotonic [low concentration]
hypertonic[high concentration ]
What is an average? What is the formula to calculate an average?
Answer:
Average, which is the arithmetic mean, and is calculated by adding a group of numbers and then dividing by the count of those numbers. For example, the average of 2, 3, 3, 5, 7, and 10 is 30 divided by 6, which is 5.
Explanation:
Answer:
Explanation:
Average, which is the arithmetic mean, and is calculated by adding a group of numbers and then dividing by the count of those numbers. For example, the average of 2, 3, 3, 5, 7, and 10 is 30 divided by 6, which is 5.
m=mean
The formula is [tex]m= \frac{Sum of the terms}{number of terms}[/tex]
Hope this helped!!!