Answer: i thi
Explanation:
I dont kno what is this because since this is layers of earth its hard for me
Answer:
A volcano was located nearby at one time.
Explanation:
can some one help me?
Answer: in order
1. DNA condenses to form chromosomes
4. each pair of chromosomes line up in the middle of the cell
3. pairs of chromosomes separate
2. A nuclear membrane forms around chromosomes
Stage 1- Prophase
Stage 2- Metaphase
Stage 3- Anaphase
Stage 4- telophase
if this helps, please mark me brainliest !! thanks !! <3
Answer:
1. DNA condenses to form chromosomes
4. each pair of chromosomes line up in the middle of the cell
3. pairs of chromosomes separate
2. A nuclear membrane forms around chromosomes
Explanation:
Prophase IDuring prophase I, the chromosomes condense and become visible inside the nucleus. Because each chromosome was duplicated during the S phase that occurred just before prophase I, each now consists of two sister chromatids joined at the centromere. This arrangement means that each chromosome has the shape of an X.
Once this chromosomal condensation has occurred, the members of each chromosome pair (called homologous chromosomes, because they are similar in size and contain similar genes), align next to each other. At this point, the two chromosomes in each pair become tightly associated with each other along their lengths in a process called synapsis. Then, while the homologous chromosomes are tightly paired, the members of each pair trade adjacent bits of DNA in a process called crossing over, also known as recombination (Figure 1). This trading of genetic material creates unique chromosomes that contain new combinations of alleles.
At the end of prophase I, the nuclear membrane finally begins to break down. Outside the nucleus, the spindle grows out from centrosomes on each side of the cell. As in mitosis, the microtubules of the spindle are responsible for moving and arranging the chromosomes during division.
Metaphase IA schematic shows two pairs of homologous chromosomes arranged in a vertical formation in the middle of a cell. Two developing mitotic spindles flank the four chromosomes. Long fibers radiating from the mitotic spindles are attached to the centromere of each chromosome.
At the start of metaphase I, microtubules emerge from the spindle and attach to the kinetochore near the centromere of each chromosome. In particular, microtubules from one side of the spindle attach to one of the chromosomes in each homologous pair, while microtubules from the other side of the spindle attach to the other member of each pair. With the aid of these microtubules, the chromosome pairs then line up along the equator of the cell, termed the metaphase plate
Anaphase IA schematic shows each member in a pair of homologous chromosomes separating from its partner and migrating in opposite directions. White spindle fibers attached to the centromeres of each chromosome are responsible for the movement of the chromosomes to opposite poles of the cell.
During anaphase I, the microtubules disassemble and contract; this, in turn, separates the homologous chromosomes such that the two chromosomes in each pair are pulled toward opposite ends of the cell (Figure 3). This separation means that each of the daughter cells that results from meiosis I will have half the number of chromosomes of the original parent cell after interphase. Also, the sister chromatids in each chromosome still remain connected. As a result, each chromosome maintains its X-shaped structure.
Telophase IA schematic shows two overlapping, circular cells, each with a nucleus and two chromosomes. The cytoplasmic portions of the cells are light grey, and the nuclei are dark grey. The chromosomes in the left-hand cell are mostly green, but the lower regions of the right chromatids are orange. The chromosomes in the right-hand cell are mostly orange, but the lower regions of the left chromatids are green. Both cells have remnants of the mitotic spindle in the cytoplasm.
As the new chromosomes reach the spindle during telophase I, the cytoplasm organizes itself and divides in two. There are now two cells, and each cell contains half the number of chromosomes as the parent cell. In addition, the two daughter cells are not genetically identical to each other because of the recombination that occurred during prophase I
HELP PLS WILL GIVE BRAINLIST
A bird catches and tries to eat a caterpillar. The caterpillar has a bad taste, so the bird lets the caterpillar go. The next time it sees the same kind of caterpillar, the bird avoids eating it.
Which best describes this behavior?
trial-and-error learned behavior
trial-and-error instinct behavior
conditioned reflex behavior
conditioned inherited behavior
Refer to your Expeditions in Reading book for a complete version of this text.
Mary Jackson believes in using her experience to help others succeed.
Which detail from “Mary Jackson Biography” best supports this idea?
Mary and her husband support young African Americans who want to pursue careers in science.
She fights to attend classes at a segregated school because she wants to become an engineer.
Mary retires with a number of honors for the work she did while employed by NASA.
She works with a team of engineers to write reports for NASA.
is my question.
Write an example of how a density-dependent factor can increase a population of birds.
Density-dependant factors may influence the size of the population by changes in reproduction or survival. This in turn led to a decrease in per capita birth rate, a limitation in population growth as a function of population density. Density dependant factors may also affect population mortality and migration.
Hopefully, this answer is helpful!
Write an example of how a density-independent factor can decrease a population of cherry trees
Which statements are true?
Choose THREE answers that are correct.
a. Senators and members of the House of Representatives must agree to serve at least two terms in office.
b. Senators and members of the House of Representatives must live in the state they represent.
c. Senators have to have been a U.S. citizen for nine years prior to being elected; members of the House of Representatives must be American citizens for seven years before being elected.
d. Senators must be at least 30 years old; members of the House of Representatives must be at least 25.
Answer:
C is true, D is false b and A are true so basically
Explanation:
A,B,C are true
I need help I’m confused
Answer:
E, A, C, B, D
Explanation:
You weight is the force of gravity pulling you towards earth. A push or pull is a force. Gravity pulls everything down towards Earth. Friction slows things down like a ball rolling. If there was no friction a ball would roll forever. When you push on a door you contact it while using a force, contact force.
Isidro visits the same park every week. The park has lots of different rock formations. How does the rock at the park change from week to week?
Answer:
There is no way that sedimentary rock can form from material in igneous rock. Isidro visits the same park every week. The park has lots of different rock formations. The rock will not change at all.
Explanation:
Answer: It can change in many different ways, but my explanation is the most common.
Explanation: Erosion and Weather. Weather has a big impact of the world around us. Weather and Erosion work together. The world is constantly changing, including the rock formation. For example, if it rained all last week the formation would be different because there is a chance that some of the rock was chipped away (depending on the strength and build of the rock and how old it is). This is when Erosion takes place. Erosion is a cycle. Erosion helps for other rocks and different shapes of rocks.
Hope this helps!
The ____ is the fleshy side part if the face A. Cheek B. Chin C. Jaw
Answer: cheek
cheeks are very fleshy in humans
PLSSSS HELPPPPPPPP ME THIS IS SO HARD PLSSS
Explanation:
read the passage first
I dont kno what is this because since this is layers of earth its hard for me
Answer:
I'm so confused. what is the question?
Explanation:
is it on Earth's layers?
Can anyone help with these questions?
A student left a piece of meat uncovered on a kitchen counter overnight. In the morning, he saw that little organisms were crawling on the meat. He concluded that conditions were right for these organisms to spontaneously come to life on the meat.
Explain why the student's conclusion was wrong.
The oceanic plate is ____ than the continental plate and therefore would be forced under the continental plate when they bump into each other. This is known as a subducting plate.
A. More Dense
B. Less Dense
Answer:
b less dense lmk if this is wrong..
Explanation:
PLEASE HELP, I WILL GIVE BRAINLIEST, 5 STARS AND ALL THAT STUFF, WRONG ANSWER OR LINK AND I WILL REPORT YOU
thank you <3
Is this a scientific model? Use complete sentences to explain why or why not.
Answer:
Sample text
Explanation:
This is for the other person to get Brainliest :0)
enjoy your day/night
Suggest any 2 reasons why do we need to respire while sleeping?
Answer:
respire means breathe. If we don't breathe at night, oxygen can't go to our brains or any parts of our body for it to function properly and we will eventually die if we don't breathe.
Explanation:
Can anyone help me please
Answer: in explanation
Explanation:
For the first one the answer is friction since it is reduced when wet
The second or third I don’t know
It is said that humans can have up to 22 miles of DNA in their body, that’s if you attached it all.
Q: How can chromosomes hold so much DNA?
Chromosomal DNA is packaged inside microscopic nuclei with the help of histones. These are positively-charged proteins that strongly adhere to negatively-charged DNA and form complexes called nucleosomes. Each nuclesome is composed of DNA wound 1.65 times around eight histone proteins.
Why do members of Congress involve themselves in casework?
a. It requires legislators to travel to foreign countries to address issues related to American interests and involving themselves in it helps members of Congress gain credibility and respect among their peers and the American electorate.
b. It is work that legislators do in committees to edit or revise the language of a bill, and involving themselves in it helps members of Congress increase the chances of their bills being passed and being turned into laws.
c. It is work that legislators do to help their constituents address a problem, and involving themselves in it helps members of Congress win popular support and observe how effectively the executive branch is handling government programs.
d. It involves criminal cases in which federal laws are broken, and involving themselves in it helps members of Congress better understand what bills to support and what bills to reject.
Answer:
You haven't been answered in 3 weeks, so Ima just snatch these rq. Hope you got what you needed.
Explanation:
how does binomal nomenclature work? I need a small answer!!!!! no more then 1 sentance! i will give brainliest!!!
Answer:
The first part of a scientific name is called the genus and the second part of a species name is the specific epithet.
Answer:
it combines 2 names into one giving every species a different scientific name
According to the principle of causal determinism, everything that will happen in the future is the consequence of what has happened in the past plus _____.
describe how habitat loss is a threat to biodiversity
describe how pollution is a threat to biodiversity
describe how invasive species are a threat to biodiversity
describe how over-exploitation is a threat to biodiversity
describe how Others ex: epidemics are threats to biodiversity
I'll give extra points + brainliest
Answer:
the answer to the first question, ( not sure about the others.)
Explanation:
without a home animals will be unable to live. Therefore if their homes are unavailable to them, their species will die out, eventually making them
extinct
Which state in the United States is most effected by earthquakes due to the location of the San Andreas Fault and two plates slipping past one another at that plate boundary?
Florida
New York
Kansas
California
Answer:
California
Explanation:
"California's most damaging earthquakes of the past 150 years, such as the 1906 “San Francisco” earthquake, have occurred on faults in the San Andreas fault system."
Examples of energy conversion in daily life
Which phrases apply to metamorphic rock formation? Check all that apply.
form from existing rocks
form without melting
appear foliated or non-foliated
form from liquid rock
form from deposition
require heat and pressure to form
Answer:
the ⛰️ melts in heat and forms in
Can someone please help?
1st Select:
A. Granite
B. Basalt
C. Metamorphic Rocks
D. Sedimentary Rocks
2nd Select:
A. Granite
B. Basalt
C. Metamorphic Rocks
D. Sedimentary Rocks
Answer: first is granite, second is basalt.
Explanation:
Answer:
1st one: A. Granite
2nd one: B. Basalt
Compare and contrast biblical creationists and evolutionists worldviews.
Answer:
The Biblical creationists worldview is that the earth was created by God in a matter of 6 days. The evolutionists worldview is that the earth was created by the big bang in a matter of millions of years. They compare by both having the earth created but they contrast mainly by the cause and time that the earth was created.
Compare and contrast biblical creationists and evolutionists worldviews.
Answer:
Evolutionists believe that the world was created/much older than the bible. While creationism is where people believe that humanity itself was created by god.
describe ways you will decrease your ecological footprint
Answer:
Walk, bike, or take public transport whenever possible.
What planet is next to the moon
Answer: Earth Lol?
Explanation:
