Answer:
cells are surrounded by a structure called the cell membrane — which, much like the walls of a house, serves as a clear boundary between the cell's internal and external environments. The cell membrane is sometimes also referred to as the plasma membrane.
Answer:
The plasma membrane, or cell membrane
Explanation:
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
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.
State two similarities and two differences between an
amoeba and a plant cell:
Answer:
S: Both are eukaryotic (1) and contain a cytoplasm + vacuole (2).
D: Amoebas lack a cell wall (1) and are not photosynthetic organisms (2).
Explanation:
Which of the following is a FALSE statement about fungi?
A. Fungi may be multicellular or unicellular
B. Fungi are heterotrophs
C. Fungi have a cell wall made of chitin
D. Fungi are autotrophs
D
fungi are not autotrophic as they lack chloroplast
Answer:
D. Fungi are autotrophs
Explanation:
Fungi are autotrophs is a false statement about fungi. Fungi are heterotrophs.
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
HELP I NEED HELP ASAP HELP I NEED HELP ASAP HELP I NEED HELP ASAP HELP I NEED HELP ASAP
HELP I NEED HELP ASAP HELP I NEED HELP ASAP HELP I NEED HELP ASAP HELP I NEED HELP ASAP
The diagram below summarizes an important process.
Mpho
Which process does the diagram summarize?
Interphase
O A. The Calvin cycle
B. Meiosis
O C. Mitosis
O D. The cell cycle
Answer:
The cell cycle
Explanation:
Which hormone is involved in female puberty, pregnancy, and menopause?
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:
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'.
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.
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
*Hope this Helps*
PLS ANSWER NOWWWWWWWWWWWWWWWWW
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 do you notice about the speed of electrons through the short circuit?
No picture, no observation = no way to answer this.
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
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:
¿POR QUÉ ES TAN IMPORTANTE PARA LAS ESPECIES EL OLFATO?
Explanation:
una pregunta porque puedes hablar español si esto es de ingles este Braylin
PLEASE HELP! WILL MARK BRANLIEST!
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.
Thank you! ^^
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
Energy from food must be transformed into the bonds of
before it can be used by cells
A)
ATP
B)
GNC
NADP
D)
cellulose
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
List Name two material resources and give an
example of how each is used.
Answer:
Wood : used for building tables and chairs, and sometimes houses
Plastic: used in a way wheir we put drinking water in it, or grocceries.
Explanation:
Hope this helps!!!
Answer:
sand and cotton. Sand is a raw material that is used in making a clear window glass. such as socks and shirts, are made from cotton.
hope it helps
I NEED HELP ASAP
click on the picture to help
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: -
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:
hope it helps
]
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
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:
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.
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:)
Please mark me the brainliest if you won't mind:)
Which two substances are among the four major types of organic compounds made by living things?
A:Carbohydrates
B:Potassium
C:Water
D:Proteins