Answer:
All seeds do not germinate to form new plant because some are not fulfilled with the appropriate amount of nutrients.
Explanation:
A new seed does not germinate in spite of a suitable environment due to a lack of enough nutrients in the soil, a seed may undergo the dormant stage, and too much or little water in the soil.
What is Germination?Germination may be defined as a process through which a seed grows into a seedling.
A lack of nutrients does not deliver enough energy to seed for germination. If the soil has too little water or no water, a seed remains dormant throughout, while if it has too high water, then the seed becomes susceptible to infections.
Under all the above conditions, a seed will germinate into a seedling in spite of a suitable environment.
Therefore, it is well described above.
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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.
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:
In order for two new cells to be created during mitosis, each cell must receive an identical copy of DNA. In order to accomplish this task efficiently prior to mitosis, a cell will condense DNA into
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.
what is the definition of carcinogen?
a carcinogen can either be a substance like colchicine or nicotine , UV radiaton, gamma radiation, X-rays, ionizing radiaton, and even viruses that cause mutations that lead to cancer
Which organisms should be classified in more than one trophic level?
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
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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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
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"
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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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-?
Question 3
Which of the following would a cell from heart muscle most likely have an unusually high proportion of?
A lysosomes
B-mitochondria
C-Golgi bodies
D-mRNA
Answer:
a
Explanation:
Answer: Mitochondria
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).
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.
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
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:
Construction workers attach ropes and pulleys to wooden timbers on an old bridge.
They use the rope and pulley system like the one in the diagram below to move the
timbers away from each other, in order to dismantle the bridge.
Answer:
It is a safe and efficient method.
Explanation:
This method of dismantle the bridge is also a good one but there are some other methods also that are used instead of rope and pulley system such as destroy the bridge by using bombs at the base of pillars and cutting of each part in order to dismantle the bridge. This rope and pulley system is also an efficient way to dismantle the bridge so that's why the engineers used this method instead of other methods due to its safe method.
A strand of messenger RNA is attached to a ribosome and is directing protein synthesis. The next exposed codon of this messenger RNA has the code GAA. It is most likely to bond with a transfer RNA that has which amino acid?
Answer:
Glutamic acid or Glutamate
Explanation:
This question is describing the process of TRANSLATION, which is the process by which protein is synthesized from a mRNA template. In the process of translation, a molecule called transfer RNA (tRNA) reads mRNA codons and carries its corresponding amino acid to the growing polypeptide chain.
According to this question, strand of messenger RNA is undergoing translation in the ribosome. However, the next exposed codon of this messenger RNA has the code GAA. A tRNA carrying an amino acid that corresponds to the codon GAA will attach to it. This amino acid is GLUTAMIC ACID.
N.B: codon GAA encodes amino acid GLUTAMIC ACID
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:
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:
all you need is in the photo
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
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.
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
Several different amino acids join together to form a protein. How do any two types of amino acids differ from one another?
A. the number of amino groups in the molecule
B. the number of carboxyl groups in the molecule
C. the chemical structure of the R group in the molecule
D. the number of chemical bonds formed by the central carbon atom
Please answer ASAP!!
Answer:
Sensory
Explanation:
all you need is in the photo
Answer:
a
Explanation:
What species and class does gossypium belong to?
Answer:
Gossypium belongs to the Gossypium arboreum L. species.
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