Answer:
brain and spinal cord
Explanation:
that's it
What is the probability for an average star to supernova?
Answer:
Key concepts and summary. A supernova occurs on average once every 25 to 100 years in the Milky Way Galaxy.
Explanation:
please give me a heart
A Before prophase II begins, does the DNA in the cell duplicate itself?___________
B. During metaphase II, do homologous chromosomes pair up as in metaphase I?__________
C. How does anaphase II differ from anaphase I?_________
D. At the end of anaphase II , how many chromatids are on each side of the cell ?___
E. After cytokinesis , how many cells have been formed from the parent cell ?_______
F. Are all of the cells the same size ? _______
Answer:
for F no
Explanation:
no cells are the same because all people ate different and can not be precisely the same as cells.
Explain which processes take place during meiosis that lead to variation in inherited traits.
Answer:
We are left with four haploid cells; each one genetically different from each other and the parent cell. 8. Describe the three ways meiosis produces genetic variability. We have seen that meiosis creates variation three ways: crossing over, mutations caused during crossing over, and independent assortment.
which of the following is problem created when a cell becomes to large
Answer:
As a cell increases in size, it usually does not make extra copies of DNA. If a cell became too large, an "information crisis" would occur. The cell has more trouble moving enough nutrients and wastes across the cell membrane.
Explanation:
how does Pteromyzon differ from scolidon and labeo fishes?
who answer this question in 10 seconds I'll mark his or her ans. as "BRAINLIST ANSWER"
It's my promise but the answer must not be copied from internet
Answer:
Due to no jaws, no paired fins and scales on the body.
Explanation:
Pteromyzon fish is different from scolidon and labeo fishes because Pteromyzon fish is not a true fish. The main reason for this is that Pteromyzon fish is agnathous means having no jaws and it doesn't have paired fins and scales on their body while all these features are present on the body of scolidon and labeo fishes so we can conclude from this discussion that Pteromyzon fish is different from scolidon and labeo fishes.
What protein protects the chromosomes during DNA replication?
Answer:
Telomeres
Hope this helps :)
Answer:
The answer is Telomeres.
Explanation:
Figure 4.19. Structure of a telomere. Telomere DNA loops back on itself to form a circular structure that protects the ends of chromosomes. Telomeres play a critical role in replication of the ends of linear DNA molecules.
Hope this helps!! ;)
Which of the following statements about plankton or nekton is NOT correct?
a. Nekton are active swimmers.
b. Phytoplankton are important primary producers.
c. All plankton are closely related to plants.
d. Plankton drift or swim weakly.
e. Zooplankton are heterotrophic plankton.
Answer:
B is the answer
Explanation:
plants make their own food and in this case phytoplankton aslo plankton are known as plants
What would be the best reason for
finding a bunch of broken rocks
underneath a melted glacier?
A. The pressure of the glacier crushed
them
B. Water seeped into the cracks and
expanded as it turned to ice
C. Modern day animals moved the
rocks around
D. Dinosaurs broke them.
Answer:
B. Water seeped into the cracks and
expanded as it turned to ice
Explanation:
This is because as the glacier melts, water seeps into cracks on the rock underneath the glacier. As this water seeps into the cracks, it would be turned into ice. As the ice expands, it causes the rock to break up into pieces.
This process is called mechanical weathering.
How does DNA in cells determine an organism's complex traits?
A. DNA contains codes for proteins, Which are necessary for the growth and functioning of an organism
B. DNA separates into long single strands that make up each part of an organism
C. DNA produces the energy an organism needs in order to grow
D. DNA folds into the nucleus of each of the cells of an organism
PLEASE HELP!!
Answer:
A. DNA contains codes for proteins, Which are necessary for the growth and functioning of an organism
Explanation:
How is a scientific law different From others laws in society?
Answer:
Pretty sure it's D. Let me know if it's right or not though
Answer:
its a
Explanation:
i do the exam
Why is it important we reduce the amount of greenhouse gases we
put into the atmosphere?
Answer:
Mhm
Explanation:
Without any greenhouse gases, Earth would be an icy wasteland. Greenhouse gases keep our planet livable by holding onto some of Earth's heat energy so that it doesn't all escape into space. This heat trapping is known as the greenhouse effect. ... Putting so much new CO2 into the air has made Earth warmer.
Answer:
If we don't reduce the emissions of greenhouse gasses, we will end up have climate change. As the world heats up, the water levels rise, the polar ice caps melt and costal cities will end up under water at somepoint. Also animals that can't handle the temp changes can die.
1. Name the two major divisions of the nervous system; list the organs/tissues found in each.
2. Name the two divisions of the peripheral nervous system (PNS), and give the primary function of each.
3. List at least seven stimuli that would trigger sensory receptors.
4a) Choose one stimulus from Q. 3, and describe in a complete sentence how the stimulus would travel to the central nervous system (CNS).
4b) Describe in 1-2 complete sentences how the motor commands from the CNS would travel to the effector target organ or tissue. Tell if the motor command will travel via the somatic or autonomic nervous system; explain why.
2
5. Choose another stimulus from Q. 3 that will initiate a CNS motor response that will travel via the other motor division (SNS/ANS) of the peripheral nervous system (PNS) described in Q. 5. Explain your reasoning.
Answer:
1.Structural Divisions of the Nervous System. The nervous system can be divided into two major regions: the central and peripheral nervous systems. The central nervous system (CNS) is the brain and spinal cord, and the peripheral nervous system (PNS) is everything else.
2.Like the nervous system as a whole, the peripheral nervous system also has two divisions: the sensory division and the motor division. The sensory division of the PNS carries sensory information from the body to the central nervous system.
3.Sensory receptors with corresponding stimuli to which they respond.
Receptor Stimulus
Apmullae of Lorenzini (primarily function as electroreceptors) Electric fields, salinity, and temperature
Baroreceptors Pressure in blood vessels
Chemo receptors Chemical stimuli
Electromagnetic radiation receptors Electromagnetic radiation
Electroreceptors Electrofields
Hydroreceptors Humidity
Infrared receptors Infrared radiation
Magnetoreceptors Magnetic fields
Mechanoreceptors Mechanical stress or strain
Nociceptors Damage or threat of damage to body tissues (leads to pain perception)
Osmoreceptors Osmolarity of fluids
Photoreceptors Visible light
Proprioceptors Sense of position
Thermoreceptors Temperature
Ultraviolet receptors Ultraviolet radiation
Which cell type has organelles that are NOT membrane-bound, eukaryotic or prokaryotic? PLEASE HELP
What is a claim? (what does it answer?)
Answer:
A claim is mostly used in an Argumentative essay and it answers the topic or the prompt of an essay. For example,you can choose a side if you agree or don't agree.
Hope this helps.
Explanation:
If a P-Wave took 5 minutes to reach a seismic
station and the earthquake began at 4:23:05, what
time did the P Wave reach the station?
Answer: 4:28:05
Explanation: if it takes 5 minutes to reach a station, just add 5 to the amount of minutes you already have (23) to get 28. And the hour and seconds stay the same.
I need this done by 6:30 can you please help me I don’t know the answers
is mitosis genetically identical
Answer:
Yes, mitosis is genetically identical.
Explanation:
when mitosis happens, the cells replicate their DNA so when the cell divides in 2, each cell contains the same chain of amino acids so yes the process creates 2 genetically identical cells
Animals are living things just like human beings.The animals live in a group of various reasons.They also also help each other.While some animals are shy some are friendly.We must be kind to them.
Answer:
Yes.
Explanation:
Yes, we must be kind to them and provide protection to them because they are also the member of this planet and they have equal right to live on this earth. These animals are very important for our environment and ecosystem because they provide various benefits to the human beings such as provides food, control harmful parts of ecosystem and increase beautification of the environment.
what is photosynthesis
Answer:
Photosynthesis, the process by which green plants and certain other organisms transform light energy into chemical energy. During photosynthesis in green plants, light energy is captured and used to convert water, carbon dioxide, and minerals into oxygen and energy-rich organic compounds.
[tex]\sf{\underline{\underline{PHOTOSYNTHESIS }}}[/tex]
Photosynthesis is a chemical reaction that takes place inside a plant, producing food for the plant to survive.Carbon dioxide, water and light are all needed for photosynthesis to take place.Photosynthesis happens in the leaves of a plant.
How do stem cells know what type of cell to differentiate into?
Through gene expression, transcription and translation of this subset of genes determines how a cell looks and acts—its phenotype. ... | Cell fate means that a stem cell “makes a decision” to differentiate into a more mature cell type.
any # answer is validasapp
Answer:
#6
Explanation:
Radioactive dating technique
To confirm the ages obtained with magnetic records, and get an absolute age of the seafloor, scientists use the radioactive dating technique. When the lava solidifies at the ridges to form the new seafloor, radioactive elements coming from the mantle are trapped in it.
When covalent bonds form. the amount of energy present decreases. What happens to the stability of the atoms in the bond?
what does it mean to live in Exponential Times?
Answer: If something grows exponentially it means really, really fast. Whatever happens as a consequence it hits up really, really hard in the last moment.
Explanation:
PLEASEE help me answer this question!??
Answer:
a or b.
Explanation:
it can be in ts regular form solid or it just formed like a liquid
Answer:
B. liquid I think.
Explanation:
or solid bc coal is a solid.
thats all i got.
An earthquake happened in a area almost everyone in the area feels the earthquake, but no buildings are damaged what is the intensity of the earthquake in the area?
Which shows the levels of organizational hierarchy listed from least complex to most complex?
O organism, population, community
O species, ecosystem, community
O population, community, species
O organism, community, population
Do all cells divide at the same rate? Explain
Help
Answer:
No, all cells do not divide at the same rate. Cells that require frequent replenishing, such as skin or intestinal cells, may only take roughly twelve hours to complete a cell cycle.
Scientists learn about the universe by studying the light that comes to Earth from stars and other objects in space. If you were a scientist hoping to understand the universe, what three questions would you ask?
50 POINTS MAKE IT FAST
Answer: Here's 4 so you can choose
How many stars are in space?
How far away from Earth are certain stars?
Are there other planets like Earth?
Could a large meteor ever strike Earth
Explanation:
Are gender traits completely a result of societal expectations?
Answer:
No. Gender traits in humans are largely determined by biophysical processes. There seems to be a vocal political faction that is trying to convince people in the name of liberty and equality that gender traits are completely learned, and therefore arbitrary. But this claim disagrees with scientific evidence. In general, boys play more with cars and girls play more with dolls not because their parents are perpetuating outdated gender stereotypes, but because their brain is telling them to. This fact does not mean that boys have to play with boy toys, or that boys who play with dolls aren't really boys. It is just a scientific observation about average behavior and its link to fetal development.
PLEASE HEL ME!!!!!!!!!
Answer:
the accurate one is layer C is younger then layer A
Explanation:
Answer:
I think it would be safe to say that the answer is:
Layer C is younger than layer A.
Explanation:
Looking at the graph it's shown D-A youngest to eldest and knocking out the fact that Layer D is above C and it appears B is not the eldest layer, I'm sure the first point is the answer!! I hope this helped!