Biology College

Bare rock
Colonised by
pioneer species
(e.g. moss)
Decomposition
creates a layer
of topsoil
Grasses grow
and displace the
pioneer species
More nutrients
in soil allows for
shrub growth
Increase in soil
depth allows for
growth of trees
What ecological process is shown above?
O migration
O primary succession
O secondary succession
O nitrification

Answers

Answer 1

Answer:

Primary Succession

Explanation:

Primary Succession is a barren area exposed by a retreating glacier

Related Questions

Evaluate the examples and select those that do not show artificial selection.
A. White rabbits have a low survival rate in nature, because it is easy for predators to spot them.
B. Penguins with higher body fat tend to survive nesting in the Antarctic winter, while leaner penguins often die.
C. A gene for disease resistance in fir trees is transferred to pine trees using modern DNA technology, allowing farmers to maximize pine tree growth.
D. Because big game hunters sought elephants for ivory, often poaching those with the biggest tusks, more African elephants today naturally lack tusks compared to the elephant populations 100 years ago.
E. In subsaharan Africa, genetically modified grass varieties that carry genes for disease and drought resistance are now available to farmers, providing more sustainable food sources for their livestock.

Answers

Those that do not show artificial selection are examples A and B.

Answers A and B :) hope that helps

2
Which of the following is an example of an abiotic factor?
A) Oak tree
Mushroom
C) Dead, broken branch
D Sand particle

Answers

I’m guessing D a sand particle

D) sand particle because an abiotic factor is something that isn’t alive like temperature but in this case an oak tree is living and a dead branch was once living for which it’s an biotic factor so your answer is a sand particle which isn’t living nor will ever be living

Which statement best describes the relationship between an allele and a gene?

A.) An allele is a version of a gene that can be expressed as a phenotype.
B.) An allele is the primary protein made by a gene found in a developing embryo.
C.) An allele is the part of a gene that attaches to messenger RNA molecules.
D.) An allele is a segment of a DNA molecule that controls replication of a gene.

Answers

A.) An allele is a version of a gene that can be expressed as a phenotype.

the correct sequence of events in meiosis

Answers

Phrophase, metaphase, anaphase, telophase.

Why where the Galapagos Turtles different from the mainland turtles if they shared a common ancestor?

Answers

Speciation! Speciation occurs when a single species becomes two or more separate populations by a geographical barrier. This changes each population’s environment which forces them to adapt. Eventually these populations will become so different from each other that they will not be able to interbreed populations and create fertile offspring. This is what makes them different species, but they still share a common ancestor.

Why is the regulation of a cell important?

Answers

Explanation:

The cell cycle is the most important process in the growth of an organism.

Explanation:

Cell cycle is the fundamental process by which a cell matures, synthesises DNA and divides to form daughter cells. Somatic cells divide regularly.

All multicellular organisms use cell division for growth, maintenance and repair of cells and tissues. Unicellular organisms use this process to reproduce.

Cell cycle affects our daily lives. Most cancers are a result of inappropriate cell division arising due to aberrations in normal cell cycle regulation. Stem cell biology and regulation in growth of organs also involves extensive study of cell cycle.

I hope this can help u !!

Carry on learning

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is the vascular system in plants an actual organ system?

Answers

Answer:

Explanation:

Answer:

NO!

Explanation:

"A plant has two organ systems: 1) the shoot system, and 2) the root system."

1
Which of the following animals has a body temperature
that doesn't change depending on the weather outside?
A. Snake
B.lizard
C. Dog
D. Shark

Answers

Answer:A

Explanation:i chose A because snakes are cold blooded

Animals have a body temperature that doesn't change depending on the weather outside A. Snake

What are endothermic?

An endotherm, because the call shows, is used to refer to heat-blooded animals. they're the animals who keep a regular frame temperature no matter the ambient temperature. mainly, endothermic animals represent birds and mammals of the animal nation.

What animals are exothermic?

Ectotherm, and referred to as cold-blooded animal—that is, any animal whose regulation of frame temperature relies upon outside sources, including sunlight or a heated rock floor. The ectotherms consist of fishes, amphibians, reptiles, and invertebrates.

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Which of the following is true regarding cell type and cytoplasm?
A.
Prokaryotic cells have cytoplasm and eukaryotic cells do not.
B.
Eukaryotic cells have cytoplasm and prokaryotic cells do not.
C.
Neither prokaryotic nor eukaryotic cells have cytoplasm.
D.
Prokaryotic and eukaryotic cells have cytoplasm.

Answers

Answer:

Eukaryotic Cells have cytoplasm , prokaryotic cells do not.

Explanation:

The typical human adult uses about 160 g of glucose per day, 120 g of which is used by the brain. The available reserve of glucose (~20 g of circulating glucose and ~190 g of glycogen) is adequate for about one day. After the reserve has been depleted during starvation, what other sources can be used to produce glucose

Answers

Answer:

Fats and proteins that are present in liver, kidneys, and muscles.

Explanation:

When the reserve of glucose is used by the body during starvation, our body uses fats and proteins that are present in liver, kidneys, muscles etc and convert these fats and proteins into glucose. There is high amount of fats and proteins present in our body which can be used when the glucose reserves depleted from the body during starvation so we can conclude that the fats and proteins are the sources that can be used to produce glucose for the body.

true or false the nucleus takes up about 30% of the cell’s volume

Answers

The answer is false, kajsksjsbdhdj

It is false that the nucleus takes up about 30% of the cell’s volume.

What is nucleus?

The part of a cell that houses the chromosomes in biology is nucleus. The membrane-enclosed nucleus is where RNA is synthesized from the chromosomal DNA. Enlarge. component cells.

The nucleus' principal jobs include storing the cell's DNA, preserving its integrity, and assisting with transcription and replication.

One of the most noticeable features of a eukaryotic cell is its spherical nucleus, which normally makes up 10% of the cell's volume.

The genetic information and other instructions necessary for cellular functions are found in the double-membraned organelle known as the nucleus. It is one of the biggest organelles and is only present in eukaryotic cells.

Thus, the given statement is false.

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What are sedimentary rocks ?? USE IN YOUR OWN WORDS.

40 POINTS DONT SKIP !

Answers

Answer:

Rock that has formed through the deposition and solidification of sediment

Explanation:

Which of the following is true about the color of a substance?
1. it is the only information needed to identify a substance
2. it helps to identify a substance but by itself is not a significant indicator of what the substance is
3.it is a chemical property of a substance
4.it never changes

Answers

Answer:

Explanation:

It identifies the substance.eg a milk is a creamy liquid substance so the creamy color make us identify the milk

The relative locations of each known gene can be shown on a ____________________ map.

Answers

Answer:

genetic

Explanation:

You are a scientist working on characterizing marine microbes that have a major role in the global nitrogen cycle. You finally culture the bacteria you are interested in and find it can grow at twice the rate that you expected, and you suspect it can make proteins more quickly than other bacteria. You want to better characterize genes involved in translation, particularly the enzymatic component of the ribosome. To do that, you must sequence which gene(s) involved in translation

Answers

Answer:

The correct answer would be - the 16S rRNA gene.

Explanation:

16S ribosomal RNA is a small subunit of ribosomes found in prokaryotic cells such as microbes. It is coded by the 16S rRNA gene that is used in constructing phylogenies again due to the slow rate of evolution.

This gene is suggested to be used as a molecular clock that is more reliable as it has sequences that show similar functionalities in distantly related bacterial lineages. It is the gene that produces protein more quickly than other bacteria.

Pls help this is due in an hour!!!!

Answers

Answer:

Throughout their life cycles, frogs have an important place in the food chain as both predators and prey. As tadpoles, they eat algae, helping regulate blooms and reducing the chances of algal contamination. Frogs are an important source of food for a variety of animals, including birds, fish, monkeys and snakes.

Explanation:

answer this question.......asap

Answers

C is the answer ( i apoligize if its wrong )

1. At which type of boundary does new oceanic crust form?
2. Why is this type of boundary also known as a constructive boundary?

Answers

Answer:

1. the boundary that the ocean crust forms is the Divergent Boundary.

2. both these plates move apart and cause earthquakes.

Explanation:

1. these boundaries are known to crash against each other causing earthquakes, but these boundaries are also form the oceanic crust.

2. when they move apart they cause earthquakes and volcano's. an example of this is the Mid- Atlantic ridge.

Help melee please...

Answers

Answer:

25%

Explanation:

The image is the punnet square. :)

What are the bonds of dna

Answers

Answer:

The bonds are covalent and hydrogen.

~Hoped this helped~

Which of the following does NOT affects the type of severe weather a location gets? *
latitude
normal weather patterns
high pressure
geography

Answers

Answer:

high pressure

I think it is option C

hope it helps

it would be nice if you could ples help me answer : Because endothermic animals must maintain a constant body temperature, they must

Question 8 options:

eat more often to have energy to keep a constant temperature.

become sluggish when it becomes to cold to conserve energy.

move to sunlight to warm, and shade to cool.

constantly move around to keep their bodies warm.

Answers

move to sunlight to warm and shade to cool :)

Are garden pansies “perfect flowers” as in do they have these traits:
•It makes and distributes male gametes.
•It makes female gametes.
•It receives male gametes.

Answers

Yes, they are perfect flowers.

Taigas, tundras, and tropical rainforests share what common abiotic component A:nutrient-poor soil B: freezing temperatures C:a lot of sunlight D:little precipitation

Answers

Taigas, tundras, and tropical rainforests have a lot of sunlight

Tundra

It has low temperatures throughout the year. Winter is quite severe and summer is cold.

Taiga

Also called coniferous forest due to the predominance of pine and spruce.

Tropical forest

The vegetation is dense and forms strata, depending on the canopy cover of the trees, which gives rise to different microclimates. The vegetation also has epiphytes, lianas and lichens.

With this information, we can conclude that the tundra, taiga and tropical forest have in common the good disposition of sunlight. Correct answer C:a lot of sunlight.

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What are some inherent traits of a lion

Answers

fur, color, mane size

In order for a protein to be an integral membrane protein it would have to be which of the following?
a. hydrophilic
b. hydrophobic
c. amphipathic
d. completely covered with phospholipids
e. exposed on only one surface of the membrane

Answers

Answer:

amphipathic, with at lest one hydrophobic region

Explanation:

For a protein to be an integral membrane protein it would have (C) : amphipathic

Amphipathic is a chemical property of a protein molecule whereby it has both hydrophilic and hydrophobics portions in the its molecule. ( i.e. It contains water soluble and non-water soluble portions ) and for a protein to be an integral membrane it has to posses both water soluble and non-water soluble portions in its molecule.

Hence we can conclude that for a protein to be considered an integral membrane protein it will posses an Amphipathic property.

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Which circulation ensures proper levels of nutrients in the blood for newborns through adults?
а a
cardiac circulation
b
fetal circulation
С
hepatic portal circulation
d
pulmonic circulation

Answers

the answer to this question is D

change to indirect speech
1, he said,"what a wonderful event it is!"

Answers

Answer:

he said that the event was wonderful

Consider the following story:

“During the summers when Xavier was a young boy (around 8 years old), his grandfather would take him to northern Ontario to go fishing on weekends. Shortly after his grandfather died his family left Ontario. He was never able to clearly remember the fishing trips. When he was 30 years old he moved back to Ontario with his wife. One weekend they decided to take a trip to northern Ontario to spend the weekend at a resort on one of Ontario’s many lakes. When they got out of the car, they were overwhelmed by the aromatic smell of the trees in the heavily wooded area by the lake. Suddenly, memories of the wonderful weekend fishing trips with his grandfather came flooding back to the him.”

Discuss the following questions:

Is this an example of a repressed memory? If not, why not?

If it’s not a repressed memory, then what is it? What accounts for the sudden re-emergence of this buried memory?

Could this account for other, more traumatic, kinds of “repression” as well?

Answers

Answer:

No.

Explanation:

This is not an example of a repressed memory because these are the good memories whereas the repressed memory are bad memories of childhood. It may be infantile amnesia due to the inability of adults to bring episodic memories memories of situations or events that occurs in their childhood. The sudden re-emergence of this buried memory is the experience of the same situation or place or event that occurs in the childhood. If a person visit to a same place which he gone in their childhood so the person remember the buried memory.

The ____ includes all of the water in all phases (solid, liquid, or gas) on or near the earth's surface.

atmosphere

geosphere

biosphere

troposphere

hydrosphere

Answers

Answer:

Si the hydrosphere

Explanation:

the hydroshhere is simply the total of all water

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