Answer:
chromosomes
Explanation:
A cell must condense DNA into chromosomes before it can divide mitotically to form two new cells with identical copies of DNA.
The condensation of the DNA happens at the initial phase of the mitosis - the prophase - during which the DNA thickens and condenses to form chromosomes.
These chromosomes then align at the cell's plate during metaphase and they become separated into sister chromatids through the pulling of the spindle fiber at anaphase. Separated chromatids of the same chromosome are then transported to the opposite ends of the cell where they decondense before cytokinesis takes place.
write four observable differences between rat and toad
Answer:Frog or toad: how to tell the difference
Skin
If there was ever a tell-tale sign to indicate which amphibian you are looking at, it’s the texture of their skin. Toads are warty-looking, covered in little lumps and bumps, while frogs are sleek and smooth. Toads also virtually always have dry skin, whereas frogs look wet even when they are out of the water.
Location
If you’ve spotted an amphibian making its way along a pavement or ambling through some grass, chances are it’s a toad. Toads cope much better with dry conditions than frogs, as their skin is more waterproof. Frogs lose moisture a lot more easily, and so are rarely seen too far away from water, which explains why they always look moist.
Legs
Frogs have long legs, longer than their head and body, which are made for hopping. Toads, on the other hand, have much shorter legs and prefer to crawl around rather than hop.
Explanation:
Answer:
1. color.
2. texture and or roughness. the rat will be smooth and the toad will feel rough against the skin.
3. growth/ size. rats can grow to be huge and toads tend to stay kind of small.
4. rat has a tail and toad does not.
extra 5. the preference of where to create a home
Explanation:
see above
e Sudan Black
7. How many water molecules are removed when Sucrose gets broken down into glucose and
fructose?
a. 1
b. 2
C. 3
d None
Which organisms should be classified in more than one trophic level?
The boulders, rocks, and pebbles at the base of this cliff are the same kind of rock as the cliff itself. What can you conclude from this evidence? Check all that apply.
A.
Waves are causing the cliff to crumble.
B.
The boulders, rocks, and pebbles were originally part of the cliff.
C.
The cliff is eroding, so the lighthouse was not built in a safe location.
The boulders, rocks, and pebbles were originally part of the cliff can conclude from this evidence.
What are the features of boulder rocks?A boulder is defined as any rock larger than 16” in diameter. They are available in two basic shapes: round and angular. Round boulders have smooth edges and curves.
Moreover, a boulder is a rock fragment with size greater than 25.6 centimetres (10.1 in) in diameter. Smaller pieces are called cobbles and pebbles.
A boulder is defined as any rock larger than 16” in diameter. They are available in two basic shapes: round and angular.
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A large manufacturing company releases chemicals into the air every day. The chemicals eventually make their way into local bodies of water, killing many of the organisms that live in these areas.
Which best describes this situation?
A. habitat destruction due to pollution
B. habitat destruction due to poaching
C. pollution due to poaching
D. poaching due to habitat destruction
Answer:
A. Habitat destruction due to pollution
Explanation:
Please answer ASAP!!
Answer:
Sensory
Explanation:
the basic unit of structure and function in a living thing is called a
Are the following populations likely to be undergoing evolution? Read the description of the population and select yes or no from the drop-down menu. A laboratory population of beetles is kept under conditions ideally suited for that species. All the beetles' needs are met. The space is very large, but contained.
Yes or No
Answer: No
Explanation:
hope this helps !!
Answer:
The answer is NO,
the next answer is YES
Explanation:
I did it 0,0
Students are conducting a lab estimating the time it takes for the cell cycle in normal chicken cells. They find that the average time for one complete cell cycle is 22 hours.
What differences would they expect to see in cancerous chicken cells?
A Cancerous chicken cells will spend more time in interphase.
b Cancerous cells will not complete all phases of the cell cycle.
c Cancerous chicken cells will complete mitosis in a shorter amount of time.
d Cancerous chicken cells and normal cells will have the same total time to complete the cell cycle.
Answer:C!
Explanation:
Cancerous chicken cells will complete mitosis in a shorter amount of time.
The difference they would expect to see in cancerous chicken cells is cancerous chicken cells will complete mitosis in a shorter amount of time. The correct option is c.
What are cancerous cells?Cancerous cells are those cells that cause cancer in organisms. These cells are the converted form of normal cells. The normal cells are converted into cancerous cells by the means of mutagens.
The cell cycle is the cycle of the division of a cell. The cell divides itself and forms a new daughter cell. That's how a body increases the older cells to divide and produce new cells. The process is called mitosis.
Now, the normal cells divide at a constant and normal rate that is needed, but the cancerous cells divided abnormally and rapidly which cause tumor in the body.
Thus, the correct option is c. Cancerous chicken cells will complete mitosis in a shorter amount of time.
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Types of orchids grow high on the branches of the tall kapok trees of the jungle. This adaptation allows the orchid to receive enough sunlight to perform its photosynthesis but the kapok trees are unaffected.
commensalism
parasitism
mutualism
Answer:
A. commensalism
Explanation:
the tree isnt helped or harmed
True or false identify if it is false: Wetlands may be either freshwater or salt water biome. May somebody please help me don’t give up on me now.
Answer:
I believe the answer is true
Answer:
True
Explanation:
I just took it on a test brainlist would be appreciated
True or false identify if it is false: Wetlands may be either freshwater or salt water biome.
Answer:
I believe the answer is True
Answer:
TRUE
Explanation:
PLEASE MARK ME AS BRAINLIEST
What species and class does gossypium belong to?
Answer:
Gossypium belongs to the Gossypium arboreum L. species.
Weston has been taking trumpet lessons for years. Which of the following muscles allows him to by the trumpet by blowing and sucking in air?
A Buccinator
B. Orbicularis oris
C. Epicranius
D. Masseter
Answer:
B Orbicularis oris
Explanation:
took the test
all you need is in the photo
Unit 4 review grade 5
Answer:
theress no question
Explanation:
Answer:
you left me speachless and where is the photo how am i soupposed to do your work if i dont know what im doing
btw the answers 4
Explanation:
all you need is in the photo
Answer:
a
Explanation:
A medical test indicates that a patient has a defective protein. This condition is most
likely due to a change in the directions coded in the:
Answer:
the hereditary unit, gene
In the 1880s, Louis Pasteur developed a method of weakening viruses. The weakened viruses could be injected into healthy individuals.
How is this method effective in fighting viral diseases?
Answer:
since Louis Pasteur developed a method of weaking the viruses, the weeked virus could be injected to healthy individuals. He did this becuase if you get injected by the weakened viruis you will have a greater chase of NOT getting that said virus.
Explanation:
Answer:
The immune system develops antibodies in response to the weakened viruses.
Explanation:
Artificial selection has produced a wide variety of crop plants, livestock, and pets. Which characteristic of artificial selection makes it different from natural selection
Answer:
Genetic Problems
Explanation:
When people genetically modify animals, they can mess up a lot of their natural abilities. For example in some cases scientist have made cows who produce more milk, but couldn't reproduce anymore because of it. Sometimes it even hurts the animal. People have bred dogs in certain ways that makes it hard for them to breathe, like Bull dogs who has respiratory issues. This makes decreases their life span and continuing to bred them will only make it worse. When scientist have a certain trait they want they also make animals breed with their own families. Incest creates a lot of genetic problems.
I hope this helped.
What is the third part of cell theory?
All cells come from pre-existing cells
All cells contain DNA
All cells contain a nucleus
All cells maintain homeostasis
Answer:
Explanation:
All cells come from pre-existing cells
In ____ ecosystem decomposers breakdown dead or decaying organisms, returning nutrients to the soil to be used by plants.
a. An unstable
b. A balanced
c. A defective
A mutation that could be inherited by offspring would result from-?
Answer: Along with substitutions, mutations can also be caused by insertions, deletions, or duplications of DNA sequences. Some mutations are hereditary because they are passed down to an offspring from a parent carrying a mutation through the germ line, meaning through an egg or sperm cell carrying the mutation.
Explanation:
A mutation that could be inherited by offspring would leads from a base substitution in gametes during meiosis. The correct option is D.
What is mutation?Any alteration to a cell's DNA sequence. Alterations in cell division can result in specific mutations.
As can exposure to environmental DNA-damaging substances. Mutations may be negative, positive, or ineffective.
Errors in DNA replication during cell division, exposure to mutagens, or viral infection can all cause mutations.
Somatic mutations (which happen in body cells) cannot be passed on to offspring, whereas germline mutations (which happen in eggs and sperm) can.
A base substitution in gametes during meiosis would result in a mutation that might be passed on to progeny.
Thus, the correct option is D.
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Your question seems incomplete, the probable complete question is:
A mutation that could be inherited by offspring would result from-?
If a link is removed or destroyed in the food chain of a biome, the chain will be disrupted.
True or False
Plz hurry
It is true because any food chain needs every link, if it is missing even 1 link another will fail eventually.
3 points
Choose the body systems responsible for the following interaction: An
increased blood flow to carry white blood cells to an injury site. *
Nervous System
Endocrine System
Lymphatic System
Immune System
Circulatory System
Respiratory System
Skeletal System
Muscular System
Excretory System
Digestive System
Integumentary System
w
Reproductive System
Answer:
The Circulatory system
Why do levels of photosynthesis change based on location and time of the year?
Answer:
Because of the Earths rotation
Explanation:
Hope this helps
Answer:
Being in a hot climate can destroy the stage of photosynthesis or a cold climate, and if in the winter, it can get really cold, or in the fall windy...
Explanation:
1. Explain the pathway of Endosymbiosis, and explain the job of all the organelles involved.
Answer:
All living things are made up of cells. Even though there are many millions of life forms on earth, all of them are made up of only two basic types of cell: prokaryotes and eukaryotes.Cells contain DNA. Prokaryotes (pro-carry-oats) are small and simple and have rings of circular DNA floating free inside the cell. Eukaryotes (you-carry-oats) are large and more complex.
The passing on of genes from parents to their offspring is known as
Answer:
Heredity
Explanation:
there is no explanation for this
Answer:
"Heredity, also called inheritance or biological inheritance, is the passing on of traits from parents to their offspring"
what would be observed when a growing seedling is placed horizontally
Answer:
it will slowey become less horizontal as time flies by
Explanation:
Write this!
If you were to place a seed down horizontally, the roots and the shoot will be grown horizontally, but when the plant grows, it will slowey become less horizontal as time flies by and shape back into a straight manner towards the sunlight, this would be a example of a term known as geotropism (the response of plants from gravity).
PLEASE HELP Select from the drop-down menu to correctly complete the statement. Different types of cells within an organism 1.All are the same 2.Serve a different function 3.Can survive on their own 4.Do not have any function
Answer:
The correct answer is - 2. Serve a different function
Explanation:
In a multicellular organism there are different type of the cells present and termed and differentiat on the basis of their specific function in the body or the location in the body. The different type of cells present are epithelilal cell, nerve cells, connective tissue cell and muscle cell. These cells can be further divided on their function as well such as cardiac cell, hepatic cell, nephron cells and neurons and many other cells.
All these specialized cell peroform their own function in the body such as nephrons helps in blood purification, hepatic cells help in various functon include synthesis of bile and hormones and metabolism. Cardiac muscles made up of cells that helps in puming the blood and mainataining blood flow.