Answer:
A. True
Explanation:
Yeah, we don't know what the first life form was or how it came to be, but the process of reproduction with VARIATION over billions of years is responsible for the diversity of life on Earth today.
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.
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:
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'.
PLEASE HELP! WILL MARK BRANLIEST!
Carbon Dioxide trapped in the atmosphere causing the Earth to become is called the ___:
A. global warming, B. greenhouse effect, C. botanical gardens effect
Explain why.
Answer:
Greenhouse effect
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:
The punctuated equilibrium model of evolution agrees with the theory of gradualism
on the idea of
a) inheritance of acquired characteristics
b) natural selection
c) use and disuse of organs
d) the rate of speciation
Natural selection. They disagree on the rate, inheritance, and whatever c is talking about.
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.
meaning of onion epidermal cell
Answer:
Outermost layer
Explanation:
Onion epidermal cells act as a barrier against infections and fungus that might injure the delicate tissues. Onion epidermal cells are frequently used to educate children to botanical anatomy or to explain plasmolysis due to their simple and basic structure and transparency.Onion epidermal cells is used for cover onion from weather too.
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
What map unit (Centimorgan) is adopted in
the construction of genetic maps?
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
What do you notice about the speed of electrons through the short circuit?
No picture, no observation = no way to answer this.
Which hormone is involved in female puberty, pregnancy, and menopause?
What are the chances a
heterozygote passes on
either a dominant or
recessive allele?
Answer:
A parent with one copy of a dominant allele and one recessive coded Ww for the widow's peak is called heterozygous for a trait and has a 50 percent chance of passing on the dominant allele to each of his or her offspring, regardless of the gene inherited from the other parent.
Explanation:
hope this helps in some way sorry if it does not
Francis was recording plant heights for an experiment. Each time that she took a measurement, she wrote it down. Then, she measured the plant again and compared the new measurement to the one that she had recorded in her notebook. What was she most likely trying to do
revise her hypothesis
check her memory
make the data more valid
form a conclusion
revise her hypothesis I guess because
she recorded the experiment again and again and then wrote it so she could get more knowledge about the experiment
Answer:
A
Explanation:
edge 202
¿POR QUÉ ES TAN IMPORTANTE PARA LAS ESPECIES EL OLFATO?
Explanation:
una pregunta porque puedes hablar español si esto es de ingles este Braylin
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
When both alleles for a gene are expressed in a heterozygous offspring
a.Allele
b.Codominance
c.Anther
d.Geneotype
e.O F1 Generation
Answer:
Explanation:
Codominance, when both characteristics are expressed.
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:
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
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
Energy from food must be transformed into the bonds of
before it can be used by cells
A)
ATP
B)
GNC
NADP
D)
cellulose
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...
How is the water and boiling point of water useful to us
Answer:
The boiling point of water can be used to illustrate the importance of hydrogen bonds in living systems. The boiling point of a compound is the temperature at which a liquid becomes a gas. When the temperature is high enough to separate the individual molecules from each other, they boil, or become a gas.
Explanation:
hope this helps
what comes first egg or chicken. please answer ASAP
Answer:
Egg.
Explanation:
Technically speaking, dinosaurs were some of the first living creatures on Earth, and they laid eggs long before chickens were around.
What are the chances that the parents will have a hairless baby guinea pig?
A. 75%
B. 25%
Answer:
I believe it is B
Explanation:
hope this helps
Answer:
B. 25%
Explanation:
There is a 50-75% or about half chance that the babies bred by a Skinny Pig and a haired Skinny pig gene carrier, will have hairless Skinny pig babies. The rest of the babies will just be skinny pig gene carriers. There is only a 25% chance that 1 or so hairless skinny babies will be born in these litters.
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 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.