Explain why primary ecological succession usually takes hundreds or thousands of years.
what is the name of worlds largest seed?
Answer:
Coco-de-mer palms (Lodoicea maldivica) produce these monster nuts, which are a type of seed. The biggest can tip the scales at up to 18 kilograms (roughly 40 pounds). That's about as much as a 4-year-old boy.
Please mark as brilliant
Answer:
The worlds largest seed is the Lodoicea maldivica seed
Explanation:
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Which TWO cellular structures are directly involved in protein production in the cells of both grass and white-tailed deer?
А
Lysosomes
B
Ribosomes
с
Centrioles
D
Central vacuole
E
Rough endoplasmic reticulum
Answer:
The correct answer is - option B. ribosome and option E. rough endoplasmic reticulum
Explanation:
The rough endoplasmic reticulum and ribosome are directly involved in the protein synthesis as ribosome helps in the process of translation and rough endoplasmic reticulum helps in editing, modifying, and packaging of the protein formed.
These both are present in eukaryotic cells such as white-tail deer and plants like grasses, together as rER have many membrane-bound ribosomes.
Thus, the correct answer is - option B. ribosome and option E. rough endoplasmic reticulum
Discuss why liquid water can exist on Earth.
Write the isotope notation for Tungsten-184
Imagine that you are given 25 germinating pea seeds that have been placed in 5M hydrochloric acid for five minutes. You place these seeds after you rinse them off, in a respirometer at the end of the five minutes and collect data. Predict the rate of oxygen consumption for these seeds and explain your reasoning.
Answer:
In the respirometer, it will be present no significant values of oxygen from the respiration process. The acid can denature proteins in a non-functional shape.
Explanation:
The pH of the solution will be considerably low in order to the proteins to work normally. In this case, the polarization of sites in the protein will cause a completely denaturation.
A normal pH is essencial for the best working coefficient of enzymes an proteins in general as well as temperature.
Help MEH!!!! plz Which feature may form as a result of erosion related to runoff?
O deltas
O gullies
O flood plains
O stalactites
Gullies are a feature that may form as a result of erosion related to runoff. It may produce the transfer of water from fields to adjacent land.
What is runoff erosion?Runoff erosion is a natural process that produces the transfer of water from fields to adjacent land.
The runoff may lead to erosion because the eroded material in the soil can be deposited a significant distance away.
This process (runoff related to erosion) occurs when there is more water or any other substance (for example, pesticides) than the land/soil can absorb.
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Answer:
gullies
Explanation:
its right i took the test and got 100%
timeline of genetics
Answer:
Explanation:
5000 BC
Demonstrating some understanding of inheritance, humans worldwide begin to selectively breed more useful varieties of livestock and crops, including wheat, maize, rice and dates
400 BC
Greek philosophers contemplate the mechanisms of human inheritance. Aristotle believes that traits acquired during life, such as injuries, can be passed to offspring. He also develops the theory of “pangenesis”, which attempts to explain how these traits are transmitted via particles called “gemules” to the reproductive cells
1859
Charles Darwin, himself a proponent of pangenesis, publishes On the Origin of Species – his explanation of evolution by natural selection. Darwin provides a plethora of evidence on how valuable traits become more common in a population, but does not provide any explanation for the mechanism of transmission of these traits
1866
Augustinian monk Gregor Mendel publishes his work on the patterns of inheritance in pea plants. His meticulous studies mark the birth of modern genetics. Mendel’s findings escape the notice of other researchers for over three decades
1882
Chromosomes are discovered by German biologist Walter Fleming, and named with the Greek prefix meaning “colour” because they become stained when cells are dyed
1902
Mendel’s research is rediscovered by botanists in 1900. US and German cell biologists then independently notice the link between Mendel’s “units of inheritance” and chromosomes. They conclude that hereditary information is contained within chromosomes
1905
The term “genetics” is created by British biologist William Bateson. The terms “gene” and “genotype” surface in 1909.
Sex chromosomes are discovered following work on butterflies and beetles
1910
US scientist Thomas Hunt Morgan is the first to discover a sex-linked trait, while studying the fruit fly Drosophila. The trait for eye colour, on the X chromosome, is also the first gene to be traced to a specific chromosome
1925
Studies show that X-rays can induce mutations in the genetic material
1944
A trio of US geneticists revisit work from the 1920s and prove that, in bacteria, DNA is the hereditary material, and not protein as was previously suspected
1951
Clear X-ray diffraction images of DNA are captured for the first time by British researcher Rosalind Franklin
1953
Building on Franklin’s work, biochemist James Watson and biophysicist Francis Crick at Cambridge University, UK, determine the now famous double-helix structure of DNA. They are awarded a Nobel prize in 1962 for their efforts.
1961
Crick and South African geneticist Sydney Brenner report that trios of DNA bases – called nucleotides – each hold the instructions for one of the 20 amino acids that combine to form proteins
1973
US researcher Herb Boyer uses enzymes to cut DNA and splice it into bacterial plasmids, which then replicate producing many copies of the inserted gene. This heralds the dawn of genetic engineering
1978
Genetically modified bacteria produce the hormone insulin
1983
The gene for an inherited disorder (Huntington’s disease) is mapped to a chromosome for the first time
1986
Kary Mullis in the US develops the Polymerase Chain Reaction (PCR), which allows researchers to produce many millions of copies of DNA molecules in just a few hours
1990
The international Human Genome Project begins, with the goal of sequencing the entire human genetic code
Gene therapy is used successfully for the first time, to treat a four-year-old girl with the rare hereditary immune disorder adenosine deaminase deficiency
1994
FlavrSavr tomatoes, genetically modified to have a long shelf-life is the first GM product to go on sale in the US. GM tomato puree goes in sale in the UK in 1996
1996
Baker’s yeast is the first (non-viral) genome to be completed, followed by the worm Caenorhabditis elegans in 1998 and then the plant Arabidopsis and fruit fly Drosophila in 2000
2000
Completion of the draft human genome is jointly announced by US firm Celera Genomics and the Human Genome Project (an international public consortium). The full sequence – comprising 30,000 to 40,000 genes – is completed in 2003
2003
A tropical fish that fluoresces bright red becomes the first genetically modified pet to go on sale in the US
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HELP PLEASE! WILL GIVE BRAINLY! Describes a weak, electromagnetic bond between polar molecules. A. Adhesion b. Hydrogen bond. C. Polar covalent bond. D.Ionic bond
Option C, polar covalent bond
It's between polar compounds
The weak, electromagnetic bond between polar molecules is polar covalent bond. Thus, option C is correct.
What is covalent bond?A covalent bond is defined as a chemical bond that includes the sharing of electron pair between atoms.
The pair of electrons are know as bonding pairs and the stable balance of attractive and repulsive forces between atoms.
The properties of covalent bond are mentioned below:
The covalent compounds have low melting points and boiling points.
The covalent compounds do not contain electricity.The covalent compounds are having lower enthalpies of vaporization and fusion.
The covalent compounds are easily catches fire and are more flammable than ionic compounds.The covalent compounds are very soft and flexible.
The physical properties of covalent compounds are that they have lower melting points and electrical conductivity.
Therefore, the weak, electromagnetic bond between polar molecules is polar covalent bond. Thus, option C is correct.
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1: Is Water the most important molecule on
earth? Answer with : claim , evidence and reasoning
Answer:
Yes, we need it to survive, also its in air, we wouldn't be able to breath without it. But most importantly we need to drink to survive
What percentage of North American frogs and toads are in trouble?
Answer:
The decline rate ranges from 2.7 to 3.79
please help me I’ll give you brainliest Please tell me please help
Explanation:
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can someone please help me ..
Answer:
Its poop mark me brainliest and have a good day (:
Explanation:
If steel is more dense than lake water, why can a boat float?
Answer:
the average density of the boat, including the steel and air, is less dense than 1.00 g/cm³. the average density of the boat, including the steel and air, is more dense than 1.00 g/cm³. lake water is more dense than pure water.
Explanation:
You welcome
What type of organism can produce energy from the sunlight?
A. Heterotroph
B. Omnivore
C. Carnivore
D. Autotroph
Answer:
autotrophs
Explanation:
Organisms that can produce energy from sunlight are called autotrophs.
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What are three parts of monosaccharides?
decribe what atoms are ( what are atoms )
Answer:
An atom is the smallest unit of ordinary matter that forms a chemical element. Every solid, liquid, gas, and plasma is composed of neutral or ionized atoms. Atoms are extremely small, typically around 100 picometers across
Explanation:
Answer:
Atom:An atom is the smallest unit of ordinary matter that forms a chemical element. Every solid, liquid, gas, and plasma is composed of neutral or ionized atoms. Atoms are extremely small, typically around 100 picometers across.
Explanation:
Hope this helped
What is physical evidence?
ОА.
matter
OB.
elements
OC.
atoms
OD.
compounds
O E.
mixtures
Answer:
Its A. Matter
Explanation:
I took the test
Which of the following are included in our solar system?
Black holes
Kuiper Belt
Jupiter
Andromeda
the sun
Which of the following is an observation?
a. You record the air temperature every day for a week.
b. You propose that a cold front is approaching.
c. You hypothesize that the temperature will increase tomorrow.
d. You conclude that the season is changing.
Answer:
a. You record the air temperature every day for a week.
Explanation:
Recording air temperature every day for a week can be classified as making an observation.
Observation is a part of the scientific method. It is a basically a way of collecting data.
During observation, our senses can be used or instruments. Depending on the nature of the study, specialized instruments helps to bridge the limitations of our senses. A good scientist is a keen observer. Making a record of air temperature usually by using a thermometer is a way of carrying out observation.When you record air temperature, you are making an observation.
Help i cant figure this out
Lipids commonly provide ______ energy to the body.
Answer:
Most of the energy required by the human body is provided by carbohydrates and lipids. As discussed in Chapter 3 "Carbohydrates", glucose is stored in the body as glycogen. While glycogen provides a ready source of energy, lipids primarily function as an energy reserve.Aug 13, 2020
Explanation:
When snow covering the ice sheet blow away, there is an increase in oxygen bubbles trapped under the ice. Explain why this occurs
Answer:
Impurities are trapped between layers of ice over the years.
Explanation:
As time goes on, many chemical impurities and gases are trapped between deposits of ice that form over the years in extremely cold regions such as Antarctica.
When the snow covering these layers of ice are removed, the gases trapped underneath are released and more oxygen dissolves in the ice and more bubbles are observed.
Wolves prey heavily on beavers in a temperate forest ecosystem. The diet of beavers consists of the leaves, branches and bark from trees, as well as many types of aquatic vegetation. In this relationship, what is the role of the wolves? A producer B decomposer C primary consumer D secondary consumer
Answer:
In this relationship , the role of wolves is as Secondary Consumers .
Explanation:
A PRODUCER - Producers are referred to as an organism that prepares its own food. Often, they are called autotrophs.
All the green plants, for example.A DECOMPOSER -: Decomposers are organisms which break down organisms and waste that are dead or decaying. Their function is ecologically important as they recycle the nutrients through a natural biological process (decomposition).
Fungi and bacteria that derive their nutrients from dead plant or animal matter are examples of decomposers.PRIMARY CONSUMERS -: Typically, primary consumers are herbivores-animals that eat plants. Since they have to eat other items to survive, they are called heterotrophs. This is different from farmers who make their own food and are autotrophic.
Insects, mice, and deer are common examples of this type of product.SECONDARY CONSUMERS -: The secondary consumers are species that eat energy from the primary consumers. Only other animals eat carnivores, and omnivores both eat plant and animal matter.
You can find secondary users, such as dogs , cats, moles, and birds, in temperate areas , for example. Foxes, owls, and snakes are other examples. Examples of secondary consumers that receive their energy from primary consumers by scavenging are wolves, crows, and hawks.In the given foodchain , the wolves are consuming beavers as their food and beavers consume leaves , branches and twigs as their food. Therefore , it is cleared from the above definations , that leaves and branches consumed by the beaver are producers(as they are the part of plants ) , the beavers are herbivores dependent on green plants , so they are primary consumers and the wolves who are preying on beavers are secondary consumers as they are carnivores .
Hence, the correct answer is OPTION D.
please answer fast !
Answer:
C
Explanation:
C would allow you to understand the cause of why specific people got the disease, and the comparison between those who got it and didn't would be vital in determining why some people got it in the first place.
The model illustrates a process by which a substance is taken up by a cell. Which statements describe the process? Select the correct answer. a. The cell wall shown in the model is changed into a cell membrane. b. The process shown in the model requires energy from the cell. c. The cell membrane in the model remains intact throughout the process. d. The model shows the process of facilitated diffusion.
Answer:
The process shown in the model requires energy from the cell.
Explanation:
Active transport refers to the movement of materials across the cell membrane against concentration gradient.
The cell membrane remains intact. However, energy is required from within the cell to move materials into the cell against concentration gradient, hence the answer.
Answer: It's A I took the quiz and I chose A. I got it right.
Explanation:
6. The jelly-like area between the nucleus and the cell membrane is called the cytoplasm. It helps organelles move throughout the cell.i) What company or place does the cytoplasm resemble in a Cell City? ii)Why do you think so? i)
Answer: cytoplasm is the jelly like substance in between all the other cell organelles
What are the nator new substances (molecules) in a chemical equation called?
Answer:
A chemical reaction is the process in which atoms present in the starting substances rearrange to give new chemical combinations present in the substances formed by the reaction. These starting substances of a chemical reaction are called the reactants, and the new substances that result are called the products.
Which food would be helpful in increasing fiber and regularly clearing the digestive tract?
1. oranges
2. broccoli
3. ginger
4. mint
Broccoli is a type of vegetables that increase the fiber content and regularly clear the digestive tracts.
What is food?Food is any substances that is consumed by a person and it releases one nutrients or the other and supplies energy to the body, build muscles, fight against diseases,renew strength, , aid metabolism and essential living of a man.
Therefore, Broccoli is a type of vegetables that increase the fiber content and regularly clear the digestive tracts.
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Chose ALL the choices that are true about exponential growth: a Rapid (fast) period of growth b Has carrying capacity c "S" curve d "J" curve e Takes place when there are lots of resources ex: food, space f Takes place when there are limited resources ex: food, space
Answer:
a, d, and e
Explanation:
The exponential growth is a period characterized by rapid growth as a result of the availability of unlimited resources for the use of the population. Once the population spends a short period getting acclimatized to their environment, a period of rapid growth follows that is devoid of any limitation and thus, the growth curve forms a 'J' shape. This type of growth has no carrying capacity that limits its growth and may not be possible in real life where resources are limited.
The correct options are a, d, and e.