A species of bird ate many types of seeds, each type coming from a different species
of tree. The birds' beaks varied in size, with some individuals having slightly smaller
beaks and others having slightly larger beaks.
slightly smaller beak
slightly larger beak
A few years went by without much rain, and the only species of tree that survived had
large seeds. Many generations later, almost all the birds had the slightly larger beaks.
How is this best explained?
Answer:
I took this in middle school option 3
Explanation:
Answer:
The bird most likely had to adapt so they had to eat whatever they could. Doing so made their beaks larger, the muscle under neath probably started to grow from all the movement trying to eat the large seeds. LOL i really dont know but it seem reasonable i guess.
Explanation:
Draw a Punnett square to represent the cross of two pea plants each hetrozygous for tallness(Tt). Use the Punnett square to identify the probability of an offspring that is short.
Answer:
25% of the offspring will be short, tt.
Explanation:
Due to technical problems, you will find the complete explanation in the attached file
please help me !!!!
Explain why the two pictures below are incorrect:
Answer:
Two of the same molecules can not connect. I hope this is right...
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Give a written example of a habitat starting at
primary succession and ending up in a climax
community.
Explanation:
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Alternative Title: primary plant succession
Primary succession, type of ecological succession (the evolution of a biological community’s ecological structure) in which plants and animals first colonize a barren, lifeless habitat. Species that arrive first in the newly created environment are called pioneer species, and through their interactions they build a simple initial biological community. This community becomes more complex as new species arrive. Primary succession is distinguished from secondary succession, which is the recovery of an existing biological community after a disturbance sets back the community’s ecological structure to an earlier stage.
Primary succession
Primary succession
Primary succession begins in barren areas, such as on bare rock exposed by a retreating glacier. The first inhabitants are lichens or plants—those that can survive in such an environment. Over hundreds of years these “pioneer species” convert the rock into soil that can support simple plants such as grasses. These grasses further modify the soil, which is then colonized by other types of plants. Each successive stage modifies the habitat by altering the amount of shade and the composition of the soil. The final stage of succession is a climax community, which is a very stable stage that can endure for hundreds of years.
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Primary succession
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Ecological succession
Pioneer species
Lava-sterilized landscapes, newly formed sand dunes, and rocks either deposited or scoured by retreating glaciers are examples of settings in which primary succession often occurs, because these places either lack soil or their soil cannot sustain life. On newly created volcanic islands, for example, after the rock cools, seeds blown by the wind may lodge in crevices, germinate, and take root. Often these first colonizing plants are weedy species, such as fast-growing grasses and lichens, that do not grow tall but do reproduce quickly. After these plants germinate and grow, they die and decompose, and their remains create pockets of soil in which other plants, as well as fungi, can become established. Over time, such fast-growing vegetation covers more and more of the island, and seeds from other, hardier, taller-growing plants arrive on the wind or are transported by birds that begin to use the island as a stopover during migration.
Surtsey
Surtsey
Surtsey, a volcanic island off the southern coast of Iceland, emerged from the Atlantic Ocean in a fiery eruption in November 1963. Shortly thereafter plants such as sea rocket (Cakile arctica), sand ryegrass (Leymus arenarius), oysterleaf (Mertensia maritima), and seaside sandplant (Honckenya peploides) colonized the island. Much of Surtsey's vegetation is composed of lichens and mosses. However, some higher plants such as the dwarf willow (Salix herbacea) and tea-leaved willow (S. phylicifolia) have grown on the island since the 1990s.
ARCTIC IMAGES/Alamy
These new arrivals shade out sun-loving grasses, shrubs, and other pioneer species, and their cast-off parts decay and add to the soil, altering it by mixing with soil particles left by the decay of earlier plants. More plants and animals arrive (the latter rafting over on flotsam or flying from nearby islands or the mainland), and some become established on the island. The ecosystem changes with each new arrival. Over several decades, the biological community transitions from collections of pioneer and intermediate species to a climax community—that is, a relatively balanced ecological stage whose ecological structure and species composition are far less volatile than those of earlier stages.
The Editors of Encyclopaedia Britannica
This article was most recently revised and updated by John P. Rafferty, Editor.
LEARN MORE in these related Britannica articles:
Weeping willow (Salix babylonica).
plant: Succession and zonation
…plants has long been called primary succession. In this case the succession was in response to...…
energy transfer and heat loss along a food chain
community ecology: Types of succession
Two different types of succession, primary and secondary, have been distinguished. Primary succession...…
ecological disturbance caused by forest fire
ecological disturbance: Disturbance intensity and the pace of recovery
Primary succession occurs in a landscape that previously was devoid of life. For example, following the...…
Differentiate between unwinding in DNA replication and protein synthesis
Answer:
1. DNA replication is the process of making two daughter strand where each daughter strand contains half of the original DNA double helix. Transcription is the process of synthesis of RNA using DNA as a template
Which of the following is used in the production of curd?
(a) Yeast
(b) Lactobacillus
(c) Mushroom
(d) Rhizobium
Answer:
B. Lactobacillus
Explanation:
Anyone plzzzzzz help
Answer:
D
Explanation:
The answer is D because D married C.
C is the child of A and B but D is not becuase D married C.
Answer:
C
Explanation:
What makes some traits dominant and other recessive?
Answer: the amount of protein produced
Explanation: a dominant gene produces enough of its protein to become a signiture trait even if it is paired with a recessive trait but with two or more reccesive traits your body is getting a low amount or no amount of the protein needed to become/show up as a dominant trait
Which is the product of the light-dependent reaction of photosynthesis?
Answer:
Oxygen, NADPH, and ATP
Explanation:
bc lol
hello, I need help with this. Have a nice day!
Answer:
It's drum. Guitar too, I guess.
How much energy is needed to start the process of glycolysis
what was worked D.R Aklilu Lema ? and what is his reasarch?
Answer:
In 1964 a young Ethiopian doctor, Aklilu Lemma, discovered that suds from the fruit of a common African plant, the endod or soapberry, which African women have used as soap for centuries, act as a potent molluscicide. ... And Lemma's early research confirmed this potential.
2. How is the synthesis of ATP in the electron trans-
port chain of mitochondria similar to the syn-
thesis of ATP in chloroplasts?
Answer:
Explanation:
They’re nearly identical in the actual events of ATP production.
Both take protons that have been ‘pumped’ into a membrane-contained area of the organelle (chloroplast or mitochondrion). These protons flow through the F1/F0 ATP synthase, which does the actual jamming of a phosphate onto ADP to create ATP.
Both pumped those protons by ‘harvesting’ the energy of electrons through passaging those electrons between special protein complexes in a membrane (electron transport chains).
The key differences are in where those energized electrons came from in the first place. In mitochondria, the electrons were ripped from sugar pieces in the Kreb’s/TCA cycle. In photosynthesis, electrons were energized by sunlight (and are then replaced by taking non-energized electrons from water, which is where oxygen is made)
HOPE IT HELPED YOUA student comes to school and eats breakfast before going to class. Eating breakfast gives the student sufficient energy to handle her classes. What two body systems work together to provide the student’s cells with energy?
A.
Excretory and endocrine
B.
Digestive and circulatory
C.
Digestive and excretory
D.
Excretory and circulatory
All of the following are functions of proteins except?
A) storage
B) movement
C) structure
D) insulation
All of the following are functions of proteins except insulation. So, the correct option is (D).
What is Protein?Proteins are defined as large biomolecules and macromolecules consisting of one or more long chains of amino acid residues. Proteins do most of the work in cells and are essential for the structure, function, and regulation of the body's tissues and organs.
Proteins serve as the building blocks for bones, muscles, cartilage, skin and blood which also form the blocks for enzymes, hormones and vitamins. Proteins are one of the three nutrients that provide calories while the others are fats and carbohydrates.
Proteins function are storage, movement, structure, etc.
Thus, all of the following are functions of proteins except insulation. So, the correct option is (D).
Learn more about Proteins, here:
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8. Which one of the following would you use to separate sand from iron
filings?
a bar magnet
filter paper
chromatography paper
alum
of substances may best be separated
Using two spring scales students pull on opposite sides of a dynamic card at rest 5 N of force is pulling left in 5 N force is pulling right describe the motion of the card
Answer:
The card will remain stationary, and will not move.
Explanation:
The card will remain stationary, and will not move because the resultant force acting on the card is equals to zero.
To understand the concept of resultant forces, we can think of a tug of war game. The difference between the forces of the two opposite teams refers to the resultant. It is more like a force imbalance. The team with the higher force wins. If the forces of the teams are equal, the resultant force becomes zero and there is a stalemate.
The same happens in or physical system in which the dynamic card is pulled. Because the two forces pulling the card are equal and opposite, there is a stalemate, and they cancel out each other, thus making the card stationary.
Based on your understanding of evolution, how could you explain why some flowers look like the insects (or birds) that are their primary pollinators? Please help
what are Punnet squares and why are they important in genetics?
Answer:
Punnet squares are is used to predict the genotypes of a particular cross.They are important in genetics because they find the offspring of a genotype.
Explanation:
Answer:
The Punnett square is a square diagram that is used to predict the genotypes of a particular cross or breeding experiment. The diagram is used by biologists to determine the probability of an offspring having a particular genotype.
Explanation:
Find 10 plants and animals along with their scientific names
Answer:
Apple : Malus domestica
Garlic: Allium sativum
Ginger: Zingiber officinale
help :0 :0 :0 :0 :0 :0 :0
pleas?
Answer:
Hmmm, I'll try to help you bud :3
The signal when the ribosome begins to translate the mRNA into a new amino acid sequence is when a start codon of one of the mRNA molecules from the cytoplasm begins to dock :3
Explanation:
:3
Answer:
C
Explanation:
Clearly explain the role of mutations in evolution.
Answer:
Mutations are changes in DNA and changes in DNA affect all aspects of an organisms life. The first step to evolution is mutation since it creates new DNA sequences for certain genes. By doing so, is creates new allele. The allele is able to spread through reproduction. All genetic features were initially caused by mutations. Mutation is practically the only way in which a species can have a new variation and so, mutations are the raw material of evolution. Although only hereditary mutations cause evolution, mutations have a large impact on evolution.
Hope this helps!
A ________ force is when two forces cancel each other out and do not affect the motion of an object.
Answer:
This is your answer ☺️☺️☺️
help? >:3
pleas
plaes
yes?
the answer to the first question is A. the answer to the second is D
A healthy individual is a carrier of a lethal allele but is unaffected by it. What is the genotype of this individual?
What causes precipitation to fall to the Earth’s surface?
Answer:
The drops of water in the clouds are heavy enough to fall.
Explanation:
Precipitation forms in the clouds when water vapor condenses into droplets of water. When the droplets are heavy, they fall to the Earth. These droplets can fall in the form of rain, hail, or snow.
What is an atom's atomic number?
the number of electrons in an atom
the number of neutrons in an atom
the number of protons in an atom
the number of bonds in an atom
Answer:
the number of protons in an atom
Answer:
The number of protons in an atom
5. Which of the following is not one of the four main reasons for cell reproduction?
A) replacing dead cells
B)reproducing organisms
C)repairing damaged chromosomes
D)growing new cells
Long chains of amino acids are
sugars.
proteins.
lipids.
carbohydrates.
Answer:
Amino acids form proteins
Mutations are
1.neutral, having no effect on an organism.
2. good or helpful for an organism.
3.either helpful, harmful or neutral, depending on the organism's environment.
4.bad or harmful to an organism.
Answer:
either helpfu, harmful or neutral