Answer:
QUESTION:
Why do the chromosomes line up in the middle of the cell?
ANSWER:
Chromosomes line up at the metaphase plate, under tension from the mitotic spindle. The two sister chromatids of each chromosome are captured by microtubules from opposite spindle poles. In metaphase, the spindle has captured all the chromosomes and lined them up at the middle of the cell, ready to divide.
Explanation:
Hope that this helps you out! :)
Have a great rest of your day/night!
Answer:
Chromosomes line up at the metaphase plate, under tension from the mitotic spindle. The two sister chromatids of each chromosome are captured by microtubules from opposite spindle poles. In metaphase, the spindle has captured all the chromosomes and lined them up at the middle of the cell, ready to divide.
hope this helps
have a good day :)
Explanation:
What is the relationship between the rock cycle and the plate tectonics?
Answer: The metamorphic rocks can erode into sedimentary rocks which can turn into igneous rock. Metamorphic rocks in the rock cycle is driven by tectonic plates.
Explanation:
Bill Nye Earth's crust
Answer:
1. rock
2. on
3. mantle
4. volcanoes
5. active
6. lava
7. hot
8. coolest
9. geyser
10. resistant
11. tectonic
12. tectonic/pangea
13. caves
14. earthquake
15. crust
Explanation:
When energy is added to a wave, how can the wave change? Select all that apply
Explanation:
The amplitude can increase The frequency can increase Deceased wavelengthWhen energy is added to a wave, the wave changes with the following:
The frequency can increase.The wavelength can decrease.The amplitude can increase. What do you mean by Energy?Energy may be defined as the ability to do work. It is applied to an object to increase its velocity. It is something that defines how things change and move.
Frequency is inversely related to the wavelength and directly related to the amplitude. So, if frequency increases, the amplitude is also increased, but the wavelength decreases.
Frequency is defined as the number of peaks formed by the wave in 1 second.
Therefore, when energy is added to a wave, frequency and amplitude increase, while wavelength decrease.
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Some male peakcocks used to have bright and large tails while others had dull, smaller tails. Female peacocks will only mate with the ones that have the brightest and largest tails. Explain how this would impact the offspring of male peacocks over time.
Answer:
Over time, most males will have bright and large tails. Females only mate with males carrying these traits, and so natural selection will favor them.
Explanation:
Bright and large tails are traits that reflect the genetic quality of males. So individuals with the most vibrant color and length express better capabilities of finding food, competing for resources, competing for males, among others, are the best option to mate and to ensure successful offspring.
The brightest and largest tails are, the better chances males have to mate and pass their genes to the following generations. So the organism spends energy and resources to produce more vibrant colors and longer feathers to enhance mating chances.
Females must ensure their reproductive success, so sexual selection is the pressure modeling males in this species. Females will only choose individuals with the better genetic charge to mate -individuals with brightest and largest tails-, so their progeny can have better genes and higher survival probabilities.
Males with the brightest and largest tails will mate and reproduce. They will pass their genes to their progeny. Male offspring will also have bright and large tails because they inherit these conditions from their parental. These male offspring will also pass their genes to the progeny, and so on. The frequency of the alleles that express these traits will increase in the population. Natural selection is favoring these alleles. So over time, there will be much more individuals with bright and large tails than individuals with dull and small tails.
help please
What adaptations do sand mason worms have to survive their environment?
What adaptations do sand mason worms have to survive their environment?
Question 1 options:
A stick out only a tube to feed
B hide in the sand
C build a tube of shells
D use tentacles on its head to capture food
Answer: I Think Its A/C
Explanation:
The adaption when sand mason worms have to survive their environment should be stick out the tube to feed.
What is the environment?It is the sum of the total elements, factors and the conditions that helped with the surrounding which create an effect on the development, action, or survival with respect to an organism or the group of an organism.
Based on the above explanation, we can conclude that the correct option is a.
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Scientists notice structural similarities between fossils of a land animal and an aquatic organism. They know the similarities are not a result of the two organisms having to adapt to similar environments. What can they attribute the structural similarities to?
convergent evolution
common ancestry
transitional evolution
similar mating habits
Explain how depth of the ocean determines ocean topography.
Answer:
Currents and waves
Explanation:
Depending on the way that the currents are and the way the wind moves. This factor can change the way the graph determines depth.
What kingdoms contain bacteria?
Which ones out of this??
Answer:
Both Eubacteria and Archaebacteria. There are two kingdoms of prokaryotes.
Explanation:
a black chicken and a white chicken are crossed. what is the probability of.
Answer:
25% that they would have a black chick
Explanation:
50% of the offspring have genotype BW, 25% are BB and 25% are WW. This means that 50% of the offspring are erminette, 25% are black, and 25% are white.
Hope this helps!!
I really need help!! Which lists the order of structures that air passes through on its way into the lungs? A. Nose, trachea, bronchi, pharynx. B. Nose, bronchi, trachea, pharynx. C. Nose, pharynx, trachea, bronchi. D. Nose, pharynx, bronchi, trachea
Answer:
Im pretty sure it's C I help my sister with her collage class for this sorta thing and if I remember correctly this is correct :)
have a great day
If a scientist found a beaker of a substance in a lab, which of the following would the scientist most likely use to identify the substance?
A. taste, smell, touch and sound
B. Melting point, ability to burn, boiling point and density
C. Poking, prodding, pouring and partaking
D. Research on Wikipedia
Please Helpppp!!!!!????
Answer:
First a glucose molecule enters the body cell, and then a glucose molecule is broken down in the cytoplasm. Then, oxygen is used to break down smaller molecules, smaller molecules enter the mitochondrion. Finally, a large amount of energy is released.
Explanation:
After you ate an energy bar full of glucose, the molecules will first enter the cells, prepare to be broken down in the first site, cytoplasm. And now, oxygen takes a part in it, continue to break it down. The smaller molecules now enter the energy source of a cell, which is mitochondrion, the energy will be released here.
Hope this will help❤️
where is the sun located?
Answer:
A. The sun is the center of our solar system
Explanation:
Why do scientists that work on producing biofuel from algae need to understand algal reproduction?
Answer:
Due to more production of biofuel.
Explanation:
Scientists that work on producing biofuel from algae need to understand algal reproduction because reproduction of algae is responsible for the higher productivity of biofuel. Algae produce by both sexually and asexually means from the fusion of male and female gametes and from only one parent. Algae needs carbondioxide gas and light for the growth and reproduction so if these factors are present in sufficient amount then the algae increases in growth and reproduce rapidly which leads to higher production of biofuel.
Fuels acquired from biomass is called biofuel. Biomass can be a plant, animal waste or algae. It is a reservoir of renewable energy and can be supplied readily.
Scientists operating on biofuel need to learn about algal reproduction as algae is the major source of biofuel production.The potency of biofuel depends on the generative cycle of the algae.Algae can propagate asexually by means of spores and vegetatively or through sexually by producing the gametes.If the determinants like carbon dioxide and sunlight required for reproduction are present in the right quantity then the algae will thrive and proliferate rapidly, thus increasing biofuel production.Therefore for increasing biofuel production, we need to know the reproductive methods of algae.
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If a son has a sex-linked disorder, he received it from ______.
Answer:
tuff
Explanation:
What helps meteorologists to forecast the weather?
Observational data collected by doppler radar, radiosondes, weather satellites, buoys and other instruments are fed into computerized NWS numerical forecast models. The models use equations, along with new and past weather data, to provide forecast guidance to our meteorologists
Answer:
Observational data collected by doppler radar, radiosondes, weather satellites, buoys and other instruments are fed into computerized NWS numerical forecast models.
Which statement best describes how cell theory relates to a stem cell's ability to
change into specialized cell types?
The stem cells have the unique ability to undergo cellular differentiation which results into formation of a more specialized cell type which performs a unique function in body. Such as blood cells, neurons, etc.
What is Cell theory?
Cell theory has been proposed which describes various properties of a cell and how these cells develop. The theory has given some postulates and one of these postulates is that the new cells originate from pre-existing cells. Thus, the cell theory explains that the specialized cells which are present in body are synthesized from the stem cells.
Under the favorable conditions, the stem cells divide to form specialized daughter cells. These daughter cells become either a new stem cell or the specialized cells with a more specific function which includes blood cells, neurons, muscle cells or bone cells.
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Modern organisms in similar environments often have similar physical
features. For example, the Australian wombat and North American
badger, Selective pressure from similar environments over time led to
these similar
vestigial features
Ccreations,
homologous features,
analogous features,
Answer:
analogous features
Explanation:
Pressure from similar environments on the organisms over time led to these similar analogous features because of the similar environmental conditions for organisms leads to the physical features that are similar in structure and function. Analogous structures are the structures which are similar in appearance in unrelated or different organisms. These structures have similarities because they perform the same job and not because they share common ancestry.
1. In this environment, which trait is adaptive for the birds?
Answer:
Explanation:
Natural selection
A group of students wants to study the structures of animals in the desert. One question they should ask is-
How long do the animals live?
Can you buy the animals in pet stores?
How do the animals satisfy their need for water?
How many offspring do the animals have?
From studies and research, I believe the proper question would be:
"How do the animals satisfy their need for water?" or "How long do the animals live?"
Explanation 1:
When studying the desert, asking "Can you buy the animals in pet stores?" is not going to help you find information about the desert because it is not a question to get information about the desert, only information if you just buy it at your local pet shop.
Explanation 2:
Asking "How many offspring do the animals have?" does help us learn about animals, but we are trying to find information on the structure of the desert in which the animals live in. We are not looking for how many children the animals will have because it doesn't fully relate to the question we would be asking.
Side Note: Offsprings mean children.
Hope this helps!
~Hocus Pocus
Which of the following best characterizes injuries to the patagium? Injuries are-
A: rare and small injuries heal well.
B: frequent due to fighting between bats.
C: not likely to heal and bats usually die from them.
D: common during birth and can contribute to infant mortality.
Are any sperm or egg cells identical to each other in meiosis?
Answer:
yes
Explanation:
Answer:
Goodnight ,
Nope not all egg cells are identical that would be in most cases impossible.
. What is the main function of an enzyme?
A. They lower the activation energy of a reaction by binding the substrate
B. They raise the activation energy of a reaction by binding the substrate
C. They lower the amount of energy present in the substrate
D. They raise the amount of energy present in the substrate
E. They are the main substrates in a biochemical reaction
Answer:
Here are some importance of enzymes I have brought for you :-
1. Enzymes create chemical reactions in the body.
2. They actually speed up the rate of a chemical reaction to help support life.
3. The enzymes in your body help to perform very important tasks. These include building muscle, destroying toxins, and breaking down food particles during digestion.
The term used to describe a location with many different cultural groups is
A. culturally diverse
B. globalization
C. multiple perspectives
D. ethnicity
During a hot July day, Brian and his friends play football outside. After a while, they are covered in sweat. Brian comments that sweat is just your body’s way of cooling itself. Which systems are involved in your body attempting to maintain homeostasis during high temperatures?
a. Your nervous system sends signals to your muscular system.
b. Your circulatory system gives blood to your respiratory system.
c. Your muscular system attempts to cool your skin through radiation.
d. Your excretory system attempts to cool your skin through evaporation.
Answer: B is correct I had this question too!
Similarly, the cardiovascular, integumentary (pores and skin and related structures), respiratory, and muscular structures paintings collectively assist the frame preserves a strong inner temperature. If frame temperature rises, blood vessels withinside the pores and skin dilate, permitting extra blood to waft close to the pores and skin's surface.
The temperature in the frame varies; in a frame in homeostasis (regular fitness state), the 'core' temperature is maintained inside quite a number 36-37.5.
What is Homeostasis?Homeostasis via way of means of contracting to show chemical electricity into thermal electricity if the frame is cold, it additionally facilitates to preserve homeostasis via way of means of contracting extra or much less frequently so oxygen can get to all cells from the heart.
Thus it is clear that systems are involved in your body attempting to maintain homeostasis during high temperatures your muscular system attempts to cool your skin through radiation.
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In food chains and webs, what trophic level must you have more of than others?
predators
Explanation:
Primary consumers are carnivores that survive on secondary consumers (herbivores).
Answer:
1st more autotrophs than heterotrophs
Explanation:
Hope this helps
Rylee saw a cell under a microscope and drew what she saw. This cell is classified as —
Answer:
Well I need more information to answer that question.
Explanation:
Explanation:
can I have a picture of the question please
Select the correct answer.
Which activity does NOT contribute to global warming?
OA Driving cars
B. Releasing gases
C. Walking
OD Burning fuel
Answer:
walking
Explanation:
What is another type of clean energy?
Which of the following describes the genetic material found in prokaryotes?
1. several large circular chromosomes and sometimes one additional small circular plasmid
2. one large linear chromosome and sometimes additional small circular plasmids
3. one large circular chromosome and sometimes additional small circular plasmids
4.several large linear chromosomes and sometimes one additional small circular plasmid
Answer:
one large circular chromosome and sometimes additional small circular plasmids.
Explanation:
