Answer:
because chlorinated hydrocarbons accumulate in fatty tissues, when a ton of contaminated fishes is turned into 200 pounds of seabirds, most of the DDT from the numerous fishes ends up in relatively few birds. As a result, the birds have a higher level of contamination per pound than the fishes.
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Based on what you know about the relationship between the burning of fossil fuels (coal, oil, gasoline) and CO2, how could this also contribute to the cyclic nature of CO2 concentrations throughout the year?
Explanation:
levels of the carbon dioxide in the atmosphere rise and fall each year as plants through photosynthesis and respiration take up the gad in the spring and summer and release it in fall and winter. Now the range of that cycle is expanding as mire carbon dioxide is emitted from burning fossil fuels and other human activities
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Which is the path of sperm from the testes to the urethra?
Answer:
Sperm then travels through the deferent duct through up the spermatic cord into the pelvic cavity, over the ureter to the prostate behind the bladder. Here, the vas deferens joins with the seminal vesicle to form the ejaculatory duct, which passes through the prostate and empties into the urethra
Answer:
epididymis, vas deferens, seminal vesicles , prostate gland, urethra
Human sperm and egg cells have ____ chromosomes.
A. 42
B. 21
C. 23
Answer:
They each have 23 chromosomes
Explanation:
Answer:
C. 23
Explanation:
Human sperm and egg cells have 23 chromosomes.
help me ls 20 points !!! i will mark brainliest just someone help me quick
Answer:
Mutations and sexual reproduction is the right answer
Hope it helps:)
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What does the theory of evolution contribute to conservation biology?
A) It helps scientists understand how populations and species are related, and this knowledge can be used to help these populations and species survive.
B) It helps scientists understand how populations and species are related, and this knowledge can be used to capture and breed the fittest organisms in these populations and species.
C)It helps scientists understand how populations and species react to changes in their environment, and this knowledge can be used to help these populations and species survive.
D)It helps scientists understand how populations and species react to changes in their environment, and this knowledge can be used to capture and breed the fittest organisms in these populations and species.
I'm timed and this is my last question, please help me on this one, thank you!
Answer:
ANSWER: C
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What pulls the chromosomes apart in anaphase?
A. Fishing Line
B. Life Choices
C. Scorpion's Spear (Get Over Here!)
D. Spindle Fibers
Answer:
D. Spindle Fibers
Explanation:
During anaphase, the centromeres of each chromosome split and the mitotic spindle pulls the sister chromatids apart.
Question
What pulls the chromosomes apart in anaphase?
Choices
A. Fishing Line
B. Life Choices
C. Scorpion's Spear (Get Over Here!)
D. Spindle Fibers
Answer
Among the given choices above the correct answer is D. Spindle Fibers.
Explanation
During the process of anaphase, the centromeres of each chromosomes are start to split and the mitotic spindle pulls the sister chromatids apart.
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What are the two steps of protein synthesis?
A. Cellular Respiration & Photosynthesis
B. Transcription & Replication
C. Transcription & Translation
Answer:
C. Transcription & Translation
Explanation:
Answer:
A cellular respiration & replication
Explanation:
what scientific term is used to describe all the genes of one organism?
Answer:
The scientific term used to describe all of the genes in an organsim is the genome.
Genome term is used to describe all the genes of one organism, it forms the genotype of an organism.
What is a genome?the entirety of an organism's genetic makeup, or DNA. Nearly every cell in a person's body has a complete copy of its genome. Everything a person needs to grow and develop is encoded in their genome.
Each and every one of the body's cells, such as the skin cell or the liver cell, carries the following set of instructions: DNA makes up the instructions in our genome.
The genome's main job is to preserve, express, and store the genetic material that gives rise to a cell's structural and functional machinery. The genome is a significant part of the cell's structural makeup, nevertheless. Hence, the Genome term is used to describe all the genes of one organism.
Learn more about the genome, here:
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Amoebas make exact copies of themselves. Therefore, they reproduce
A. asexually buy the process of MEIOSIS
B. sexually by the process of MITOSIS
C. sexually by the process of MEIOSIS
D. asexually by the process of MITOSIS
Answer:
D
Explanation:
Asexual reproduction (requiring one parent) forms exact copies of the parent cell. The type of cell division that produces exact copies is mitosis. Therefore the answer is D.
Answer:
D. asexually by the process of Mitosis
Explanation:
Amoebas make exact copies of themselves. Therefore, they reproduce asexually by the process of Mitosis.
The data show that both paper grocery bags and plastic grocery bags cause harm to the environment. As a result, the scientists who study this issue are most likely to:
Answer:
carry their shopping on their head?
Which process is similar to binary fission?Which stage of the cell cycle involves cell growth and DNA replication?
Answer:
mitosis
Explanation:
i took the test and got it right :) hope this helped
prairie dogs north america Indirect relationship (between keystone species and other organisms): Preservation Status:
Answer:
Indirect relationship.
Explanation:
There is indirect relationship between keystone species and other organisms because both species affect each other not directly but indirectly. The keystone predation was the most common of the indirect effects on other abundance of other species. The predation of keystone species decrease the population of keystone species which indirectly increases the population of competitors in that environment.
What is the biology behind the improvement of strength in the human body? describe
Answer:
Due to its function to fight against disease.
Explanation:
Improvement of strength in the human body is very important because strong body helps in fighting against diseases. Strong body helps in doing physical activities and also helps in protecting itself from every type of harm. Weak human body can't fight against diseases due to weak immune system so we can conclude that improvement in human body is necessary for survival, development and health of human.
Elizabeth has always believed that people’s thoughts can help heal them. She wants to help people use positive thinking to positively affect their illnesses. What type of psychology would be MOST appropriate for Elizabeth to study? A. human factors psychology B. industrial psychology C. health psychology D. sports psychology
Answer:
health psychology
hope it is helpful to you
How does connective tissue provide support the body?
Answer:
Connective tissues perform many functions in the body, but most importantly, they support and connect other tissues; from the connective tissue sheath that surrounds muscle cells, to the tendons that attach muscles to bones, and to the skeleton that supports the positions of the body.
Explanation:
What are three real life examples of diffusion and the Cells ?
Answer:
living organisms
Oxygen and carbon dioxide, dissolved in water, are exchanged by diffusion in the lungs:
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PLSSS HELP NOW plssssssssssssssssssssssss
Answer:
the hawks can hide behind the producers and catch rabbits
since they dont eat plants
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Answer: 1- Central nervous system, thalamus.
2- Because the hypothalamus is part of an unit called Hypothalamus - adeno/neuro hypophysis, that unit synthesizes hormones.
3- Through different cores like supraoptic, paraventricular, etc.
4- Specific hormones (polypeptides, proteins, derived from amino acids, steroids). Those hormones travel in arterias or veins to the diana organs.
5- pituitary gland/ hypophysis
Explanation: -
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The amount of carbon today is the exact amount that has always been on Earth. T or F
Answer:
False
Explanation:
Every time, the amount of carbon increases depending on the population that has grown on our planet. Carbon is a chemical substance that is created by human activities which are wood, coal, natural gas, gasoline, and oil, If it is burned, Carbon dioxide is released and mixing it in the air and continuously adds for as long as they keep doing it.
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Would you predict more earthquakes in areas where tectonic plates are colliding or where they are moving apart?
PLSS HELPP MEEE
Answer:
Maybe where they are colliding because when they collide there is going to be a wave of impact that will go to the surface
Explanation:
Which two substances are among the four major types of organic compounds made by living things?
A:Carbohydrates
B:Potassium
C:Water
D:Proteins
]
Enzymes can speed up chemical reactions because they can absorb excess energy.
True
False
Answer:false
Explanation:
Which of the following is NOT a characteristic of life?If you explain too I give you a brainlist.
A.Made of one or more cells
B.Movement
C.Requires Energy
D.Adapts over time
What is a difference between endocrine and exocrine glands?
A.
Endocrine glands secrete hormones into the bloodstream and exocrine glands secrete products into ducts.
B.
Endocrine glands produce nutrients for cells and exocrine glands absorb minerals for cells.
C.
Endocrine glands secrete products into ducts and exocrine glands secrete hormones into the bloodstream.
D.
Endocrine glands absorb minerals for cells and exocrine glands produce nutrients for cells.
Looks like the answer is A!
Answer:
the answer is ️
endocrine gland secretion hormones
exocrine gland secretion product into ducts like sweat gland, mammary gland, salivary gland
In fruit flies, red eye color (R) is
dominant over brown eye color(r).
What percentage of offspring would be
expected to have brown eyes if parent
one is Rr and parent two is rr?
Answer:
50%
Explanation:
de que sustancia esta lleno el cromosoma
Answer:
Los cromosomas están compuestos por dos cadenas largas de polinucleótidos asociados a proteínas histonas
Explanation:
Un cromosoma es una molécula lineal de ácido desoxirribonucleico (ADN) la cual está compuesta por dos cadenas de nucleótidos dispuestas en forma de doble-hélice. En el ADN, cada nucleótido está formado por una azúcar desoxirribosa, un grupo fosfato y un tipo de base nitrogenada (los cuatro tipos de bases nitrogenadas que forma nucleótidos en la molécula de ADN son Timina, Guanina, Citocina y Adenina). La molécula larga de ADN en doble hélice se encuentra asociada a proteínas histonas para formar las fibras de cromatina. Aproximadamente 150 pares de bases de la molécula del ADN se encuentran enrolladas con las histonas H2A, H2B, H3 y H4 (dos subunidades de cada una) para formar un nucleosoma, la unidad básica de la cromatina. Finalmente, es importante indicar que la molécula de ADN contiene regiones no codificantes y regiones codificantes, es decir, fragmentos de ADN los cuales son utilizados como templados para producir moléculas de ARN mediante un mecanismo conocido como transcripción. Los ARN mensajeros (ARNm) son un tipo especial de ARN sintetizados a partir de fragmentos codificantes de ADN conocidos como 'genes'. Posteriormente al proceso de transcripción, estos ARN mensajeros sirven a su vez como templados para la síntesis de proteínas en los ribosomas, mediante un mecanismo conocido como 'traducción'.
Energy from food must be transformed into the bonds of
before it can be used by cells
A)
ATP
B)
GNC
NADP
D)
cellulose
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Sunlight - 9th down > Needed to chemically change water...
Population - 10th down > More than one organism of the same species...
Community - 3rd down > Different populations in a specific area...
Trophic Pyramid - 4th down > Shows the energy transfers of populations...
Food Web - 6th down > Shows the feeding relationships of the food chains...
Decomposer - 8th down > Helps dead things to chemically change...
What is the name of one convection cell that forms because of the Coriolis effect? How does the air move in that convection cell?
Answer:
Hadley CellsWarming air causes it to ascend. The cool air will sink. The action eventually results in a convection cell, with air rising, traveling to the side, dropping, and returning. This heat-driven air movement circulates heat throughout the atmosphere.OAmalOHopeO