PLEASE HELP I WILL MARK BRAINALISTTTT

plz help ;-; I cant fail this

What is another name for solar energy?

Which of the following statements about energy producing technologies is true?
A. Some currently used energy producing technologies have no disadvantages

B. Alternatives to non-renewable energy sources can be as effective

C. Air pollution is common to all energy producing technologies

D. Alternatives to non-renewable energy sources are typically more damaging to the environment

what does a centromere hold together?

which event Mark's the beginning of dna replication​

What are the three states or forms water can be found in?

Potassium-40 has a half-life of 1.3 billion years. If a rock was
determined to be around 3.9 billion years old what percentage
of the original potassium-40 would be left in that rock sample?

12 POINTS!!

explain how the nervous system is important to cellular respiration

Help ill award branliest!
Is it possible to know the genotype of a purple flower just by looking at it? Explain why or why not.

Please help asap please!
How many grams of salt are in 5 L of a solution with a concentration of 3 g/L?

Will get brainliest for both

PLEASE ANSWER ASAP!!!!
A high population of greater prairie chickens once inhabited the prairies of Illinois. The conversion of the prairies into agricultural land caused the chickens to lose their habitat. Studies have concluded that this change greatly reduced the greater prairie chicken population. The habitat loss also resulted in a decrease in the population’s genetic variation.

Which change in the gene pool occurred in the greater prairie chicken population?
gene mutation
gene flow
genetic drift
genetic resistance

Which of the following statements is true about the structure of an atom?
1. The proton and neutron are of equal mass.
2. The electron is the most massive subatomic particle.
3. The electron cloud contains more mass than the nucleus.
4. The nucleus of an atom contains more mass than the electron cloud.
A. 1 and 4

B. 2,3, and 4

C. 1 only

D. 2 and 3

Complete this sentence to create an argumentative claim .
Rosa Park's act of civil disobedience was a pivotal moment in the civil right movement

A) that brought national attention to the harsh realities of jim crow laws
B) that inspired other advocates of her generation and generation to come
C) and her efforts should be commemorated by putting her image on a pice of us currency
D) but at the time she did not know her single action would ignite a firestorm of protests and boycotts.

PLEASE ANSWER QUICKLY

After Dante catches the flu virus, he feels very tired and loses his appetite. His body aches and he gets a high fever.
Which best describes Dante's symptoms?

they are a response to an infection, which is an internal stimulus

they are a response to being tired, which is an external stimulus

they are a response to hunger, which is an internal stimulus

they are a response to an illness, which is an external stimulus

what was the role of revivalists of the second great awakening in the abolitionist movement? A. the revivalists of the second great awakening were against the abolitionist movement. B. many of the revivalists of the second great awakening campaigned against slavery. C. revivalists preachers didn't believe in slavery. D. most revivalists taught their enslaved people to preach to the American Indians.​

GIVING BRAINLIEST!!!!

What defines a climate zone?

A) An area that has similar average temperatures and precipitation throughout
B) An area that has the same types of plants and animals throughout
C) The average temperature and precipitation in an area over a long period of time
D) The weather conditions in an area at a certain time

During prophase I of meiosis, these pairs form a tetrad in a process called:

What is the relationship between ATP and mitochondria?

I really need 1-4 pleaseeee

Which of the following energy producing technologies can be beneficial to soil quality

A. Biomass
B. Solar
C. Wind
D. Oil

Whales, humans, lizards, and birds each have forelimbs that are adapted for different functions, including swimming, using tools, walking, and flying. While different in function, these forelimbs share a similar skeletal structure of the humerus, radius, and ulna. How does a comparison of the forelimbs of these organisms provide evidence for evolution?
A. These homologous structures indicate that these four organisms all share a common ancestor.
B. These analogous structures indicate that whales are descended from organisms that lived on land.
C. These analogous structures indicate that these four organisms all experienced convergent evolution.
D. These homologous structures indicate that humans, whales, and birds all evolved from a lineage of lizards.

Which is a characteristic of cancer cells

A. controlled cell division
B. Contains multiple genetics changes
C.Cytokinesis stage is skipped
D. cell cyclins function normally

Someone help me define these pls

What can you do to prevent the loss of a chick in an egg in the incubator

Fungi produce spores in structures called fruiting bodies.
•True
•False

describe how photosynthesis and cellular Respiration Power all the ecosystems on this planet

if a mother monster is
and has , and the father monster is and has

Help please
In an experiment, 90 newborn flies are divided evenly into three separate
groups and placed in boxes inside an incubator that is maintained at a
constant temperature of 30°C. On a daily basis, the first group is given water
containing 1 mg/mL of sugar; the second is given water containing 2 mg/mL
of sugar; and the third is given water containing 3 mg/mL of sugar. After four
weeks, the average length of the flies in each group is determined.
Which factor is the independent variable in this experiment?
A. Number of flies in a group
B. Average length of flies in a group
C. Concentration of sugar in the water
D. Temperature of the incubator

¿Cuáles son los alimentos que contribuyen una fuente rica en vitaminas y minerales ? A) Cereales y tubérculos B) Leguminosas y frutas C) carnes y cereales D) Verduras y frutas