Answer:
they literally cross over. it's the 3rd ome
Explanation:
and also they exchange some DNA and genes
The statement best describes the process of crossing over is homologous chromosomes pair up, and non-sister chromatids exchange genetic material. The correct option is c.
What are chromosomes?The thread-like components known as chromosomes are found in the nucleus of both animal and plant cells. Protein and a single molecule of deoxyribonucleic acid make up each chromosome (DNA).
DNA is passed down from parents to children and contains the precise instructions that give each kind of living thing its individuality. DNA may be precisely duplicated during these cell divisions thanks to chromosomes.
So, once more. Our cells' nuclei include chromosomes, which enable precise DNA duplication during cell division. This guarantees that our internal processes go smoothly and effectively.
Therefore, the correct option is c, Homologous chromosomes pair up, and non-sister chromatids exchange genetic material.
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What kinds of land uses are around
your school? Write down each type of land use.
Then describe how one of these land uses might
affect natural systems.
Answer:
The grass in the field How this effects is because its a comfertable place for alot of things to live
Explanation:
Which process must occur for a muscle to be able to relax?
DA
The amount of ATP in the neuromuscular junction must increase.
O B. A nerve must initiate an action potential in the muscle fiber.
O C. Myosin and actin must attach to each other.
O D.
The concentration of calcium in the myofibril must decrease.
Answer: The correct option is D.
The concentration of calcium in the myofibril must decrease.
Explanation:
This is because calcium makes myosin, actin and ATP to interact which actually lead to the contraction of muscle fibre.
Relaxation of muscle fibres occurs when the nerves stop stimulating. The result in the pumping of Calcium into the sarcoplasmic reticulum which then cause a break in the link that connect actin and myosin. Actin and myosin return to their unbound state leading to the relaxation of the muscle .
A frog and an apple tree do not have many things in common except they are both living things. As such, it is evident that they both-
Answer:
Are composed of at least one cell (B)
Explanation:
Why it's not A- Apples can't migrateWhy it's not C- Apples don't have tongesWhy it's not D- Frogs can't do photosynthesis (They don't have Chloroplasts)Suppose you discovered a cell that measured 10 centimeters tall, 10 centimeters wide, and 10 centimeters long.
About how much would this cell weigh?
O 1000 g
O 19
1000 kg
O 01 kg
O
none of the answers shown are reasonable
Answer:
1000 g
Explanation:
Parallel Flow
Which filter regions have a concentration gradient
between the blood and dialysate?
Check all that apply.
1
11
IN
V
Submit
The filter regions that have concentration gradients between the blood and dialysate are ; ( I and II ).
The filter regions ( I and II ) both have concentration gradients because of the concentration difference between the Urea contained in the blood and the Urea concentration found in dialysis
The difference in concentration gradients of the filter regions between the blood and dialysate leads to the diffusion of Urea in blood into the dialysis fluid with a lower concentration of Urea.
Hence we can conclude that The filter regions that have concentration gradients between the blood and dialysate are ; ( I and II ).
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Although some data related to your question is missing attached below is the missing data
how does skin help with homeostasis? include the terms stimulus and response
Answer:
The skin provides a protective layer for the inner organs, helps to regulate temperature, water balance, receives sensory stimuli, produces vitamins, etc.
Explanation:
The integumentary system can be defined as an organ system composed of different organs, i.e., skin, hair, exocrine glands, nails. The skin helps in homeostasis by providing a protective layer for the inner organs, contains immune cells involved in immune responses, regulates temperature, water balance, receives sensory stimuli, production of vitamins. The skin contains sensory receptors for different stimuli including touch, pain, pressure, and temperature (both heat and cold receptors). The inflammatory response (inflammation) occurs when harmful microorganisms penetrate the skin, thereby causing skin inflammation. The skin's immune cells include, among others, neutrophils (located in the reticular dermis), macrophages (papillary and reticular dermis), T lymphocytes (epidermis and papillary dermis), Langerhans cells (epidermis), etc.
why must both constricting and posionous snakes eat their prey alive?
Answer:
There is a very common misperception among people, even among many snake hobbyists, that snakes must have live prey.
Explanation:
This is not usually true. In the wild, snakes, like most other carnivores, will usually take any opportunity to get a free and easy meal, and will not pass up a freshly killed prey animal if they happen upon it. In fact, snakes have been known to eat a fair amount of carrion which has been dead for some time, and the stomach contents of wild snakes often contain prey that must have been in an advanced state of decomposition when it was eaten. Thus, although your snake may prefer to eat live prey, which it kills itself through constriction, this is not at all necessary for the health of the snake. In fact, it is best not to feed your captive snakes live prey at all.
do DNA and RNA have the same phosphate group?
Answer: yes they do
Explanation: In a cell, a nucleotide about to be added to the end of a polynucleotide chain will bear a series of three phosphate groups. When the nucleotide joins the growing DNA or RNA chain, it loses two phosphate groups. So, in a chain of DNA or RNA, each nucleotide has just one phosphate group.
Four children in a family have four different blood types. If the father has
type A blood, which blood genotype best represents the mother?
PLEASE HELP!!!! When rocks are moved to a different location we call this *
chemical weathering
mechanical/physical weathering
deposition
erosion
Genetic mutation which can lead to diversity between organisms can be caused by
Answer:
DNA
Explanation:
Mutations are changes to an organisms DNA that creates diversity within a population by introducing new alleles. Some mutations are harmful and are quickly eliminated from the population by natural selection harmful mutations prevent organisms from reaching sexual maturity and reproducing.
A group of students walking through a coastal rainforest in Vietnam observe a large, beautiful tree towering above. The tree is full of orchids, mosses, birds, insects, arachnids, and millions of bacteria, all interacting with the abiotic environment, including the air, soil, and water of the forest. Which of the following terms bests describe this in the entirety of what they are observing?
a. community
b. habitat
c. ecosystem
d. Omicrocosm
Answer: A or C
Explanation:
TRUE OR FALSE?
Adnoc is able to lower its oil production costs by using - edge technologies?
Answer: he is right
Explanation: i am not going to take his answer :)
click it to see whole photo
Membrane bound-organelles have been an important component in the evolution of complex, multicellular organisms. Which of the following best summarizes the advantage of eukaryotic cells having internal membranes? a. Eukaryotic cells are able to reproduce faster because of the presence of organelles b. Some organelles, such as mitochondria and chloroplasts, are similar to prokaryotic cells in structure. c. Organelles isolate specific reactions, increasing metabolic efficiency. Compartmentalization leads to a higher mutation rate in DNA, which leads to more new species.
Answer:
A because eukaryotic cells reproduce way faster than prokaryotic cells
Explanation:
22. An individual who participates in a long-distance run on a hot day will produce large
quantities of sweat. As a result of the excessive sweating, the amount of urine
produced by the kidneys will change.
How will the kidneys respond to help the individual's body maintain homeostasis?
The kidneys will decrease urine production so the body can maintain blood pH and allow the body to cool by excessive sweating.
What is Homeostasis?
Homeostasis refers to an organism's ability to regulate various physiological processes to keep internal states steady and balanced.
When an individual is running long-distance on a hot day will produce a large quantity of sweat. The kidney plays an important role here to retain the amount of urine and excessive sweat is produced to maintain the temperature of the body as well as the pH of the blood.
Therefore, the kidneys will decrease urine production so the body can maintain blood pH and allow the body to cool by excessive sweating.
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Write in the alleles of the parents and the possible allele combinations of the offspring in the Punnett square below. Both parents are tall. Three of the offspring are tall, and one is short.
Answer:
the punnett square is in the pic
PLZ EXPLAIN, AND I NEED HELP NOW!
If an organism's body cells have 12 chromosomes, how many chromosomes will sex cells have? Explain.
Answer:
6 chromosomes
Explanation:
Answer:
The gametes or sex cells produced by the organism will have 6 chromosomes if the organism has 12 chromosomes.
Explanation:
The diploid organism has all chromosomes in pairs, one chromosome inherited from male parent & another chromosome in the pair is inherited from the female parent. If an organism has 12 chromosomes, it has 6 different types of chromosomes, differing from one another in length, the position of centromeres and genes present on these. Six different types of chromosomes constitute a haploid set of chromosomes. Two chromosomes of the same type are called homologous chromosomes and these constitute a homologous pair. The cells producing sex cells or gametes undergo meiosis (reduction division) so that each gamete contains only one chromosome of a homologous pair. The gametes are haploid, having half the number of cells as compared to somatic cells.
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is the result of changes in a population over time due to the process of natural selection.
Answer: Evolution is a process that results in changes in the genetic material of a population over time. Evolution reflects the adaptations of organisms to their changing environments and can result in altered genes, novel traits, and new species.
Explanation: my answer is an explanation in itself
In a certain animal, a breed is known that always has a hairy tail; another breed is known that always has a naked tail. How would you determine which trait is dominant?
the dominant trade should be the hairy tail if its seen more often, naked tails are resesive and are seen less often, hope that helped
In a certain animal, it is possible to determine a dominant trait by crossing purebred lines and observing the proportion in offspring.
What are purebred lines?The purebred lines are genetic lineages of organisms that are homo-zygous for a given genetic/phenotypic trait.
It is possible to determine the dominance level of phenotypic features by crossing purebred lines.The proportion of the phenotypic traits in progeny will evidence the presence of dominace.In conclusion, in a certain animal, it is possible to determine a dominant trait by crossing purebred lines.
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Will give brainliest to people that help me with these
Answer:
here you go hope it helps you with your question
Explanation:
because nitrogen is required for growth it is considered an essential nitrate so true
converting nitrogen from a gas to a useable form by bacteria is denitrification is true two
the movement of chemicals on a global scale from abiotic through biotic parts of the environment is a lithospheric process true
The levels of CO2 have significantly decreased since the
industrial revolution over 150 years ago.
True
False
Answer:
False; The levels of carbon dioxide have significantly increased since the industrial revolution.
Drag each tile to the correct location.
Identify each process as a carbon source or a carbon sink.
Carbon sources are any natural or artificial production site of carbon and/or any chemical compounds composed of carbon, such as carbon dioxide and methane.
Carbon source: Combustion,Respiration.
A carbon sink absorbs carbon dioxide from the atmosphere.
Carbon sink: Photosyntheis,Ocean absorption,Fossilization.
Which one is carbon sink or carbon source?1. Photosyntheis: Forests are typically carbon sinks, places that absorb more carbon than they release. They continually take carbon out of the atmosphere through the process of photosynthesis.
2. Ocean absorption: Phytoplankton are the main reason the ocean is one of the biggest carbon sinks. These microscopic marine algae and bacteria play a impotant role in carbon cycle - absorbing carbon.
3. Fossilization: Absorb CO2.
4. Combustion: Combustion is a chemical process in which a substance reacts rapidly with oxygen and gives off heat and CO2 in environment.
5. Respiration: The respiratory system, with its conduction and respiratory zones, brings air from the environment to the lungs and facilitates gas exchange both in the lungs and within the cells and gives out CO2 in atmosphere.
Thus, we can conclude that
carbon sink: Photosyntheis,Ocean absorption,Fossilization.
carbon source:Combustion,Respiration.
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Plz help me well mark brainliest if correct!..
Answer:A
Explanation:
hard exoskeleton
Which part of the cell holds genetic information in the molecule DNA? vacuole Golgi body chromosomes ribosome
Answer:
the answer is chromosomes. I hope this helps :)
Explanation:
Which plant parts are in leaves? (Select all that apply.)
1. endosperm
2. xylem
3. root hairs
4. phloem
Answer:
4. Phloem
Explanation:
Phloem, also called bast, tissues in plants that conduct foods made in the leaves to all other parts of the plant. Phloem is composed of various specialized cells called sieve tubes, companion cells, phloem fibers, and phloem parenchyma cells. - Britannica
Hope this helps! Have an Amazing day!!
What should be added to the diagram to better explain the water cycle?
A The sun to provide energy for evaporation
B Rocks to release thermal energy
Plants to provide oxygen in the atmosphere
D) Soil to trap water from runoff
Answer:
the answer is a
Explanation:
the evaporation plays a huge role in the water system
What is the platform of ADNOC called?
(Please dont comment files)
Answer: ADNOC Hosts Youth Circle at its Umm Lulu Offshore Platform as it Focuses on the Future - Abu Dhabi National Oil Company.
Explanation: Hope that was helpful! :D
Can you help me answers it,
three major functions of leaf.
Answer:
Photosynthesis.
Transpiration.
Photosynthesis.
Explanation: