1. Analyze Less than 20% of the Nahmint and Nanaimo Rivers were stocked with
captive bred salmon. Was there a decrease in egg size in these rivers?

Answers

Answer 1

Answer:

Captive breeding and release programs, widely used to supplement populations of declining species, minimize juvenile mortality to achieve rapid population growth. However, raising animals in benign environments may promote traits that are adaptive in captivity but maladaptive in nature. In chinook salmon, hatchery rearing relaxes natural selection favoring large eggs, allowing fecundity selection to drive exceptionally rapid evolution of small eggs. Trends toward small eggs are also evident in natural populations heavily supplemented by hatcheries, but not in minimally supplemented populations. Unintentional selection in captivity can lead to rapid changes in critical life-history traits that may reduce the success of supplementation or reintroduction programs.

Explanation:


Related Questions

my question is here ​

Answers

Answer:bpojgf

Explanation:Dujdjnn

Answer:

um ok

Explanation:

Yes clearly your question is there.

What name is given to a factor which is preventing any increase in photosynthesis?

Answers

Answer: A limiting factor

Explanation: A limiting factor is simply anything in short supply that prevents photosynthesis occurring at its maximum rate. Three factors can limit the rate of photosynthesis: light intensity, carbon dioxide concentration and temperature.

Any factor that prevents any increase in photosynthesis is known as a LIMITING FACTOR.

In photosynthesis, a limiting factor is defined as a factor/agent that constrains photosynthetic activity.

The most important factors capable of limiting the rate of photosynthesis include light, carbon dioxide (CO2) level and temperature.

For example, photosynthesis cannot take place without light, which is absorbed by chlorophyll pigment molecules to start photosynthesis.

In conclusion, any factor that prevents any increase in photosynthesis is known as a LIMITING FACTOR.

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Which of the following would be true when comparing plants in the desert and rainforest?


A. Plants in the desert would have an increased number of stomata compared to rainforest plants.

B. Plants in the desert would have a decreased number of stomata compared to rainforest plants.

C. Plants in the desert would have an increased number of mitochondria compared to rainforest plants.

D. Plants in the desert would have a decreased number of stomata compared to rainforest plants.

Answers

Answer:

A.Plants in the desert would have an increased number of stomata compared to rainforest plants.

Explanation:Stomata are composed of a pair of specialized epidermal cells referred to as guard cells (Figure 3). Stomata regulate gas exchange between the plant and environment and control of water loss by changing the size of the stomatal pore.

PLEASE HELPPPP THIS IS DISCOVERY EDUCATION 2.5 HEAT A new investigator takes over a project after much of the original notes and written observations were lost. In the conclusion, the investigator needs to compare the energies associated with the reactions without having the actual recorded data. The final amount of energy generated in each reaction is available, but the results were calculated with different units. Use what you know about converting units of heat to drag and drop the tiles in order of increasing thermal energy, from lowest to highest.

Answers

Answer:

It’s

800 J

380 calories

1.7 kJ

3500 J

57 kcal

Explanation:

Just got it wrong :(

describe how the ancestors of whales moved from the land to the sea.

Answers

Answer:

To swim, they move their tails up and down, rather than back and forth as fishes do. This is because whales evolved from walking land mammals whose backbones did not naturally bend side to side, but up and down.

Explanation:

Help meeeee please :(

Answers

Answer:

1 - D

2 - G

3 - I

4 - E

5 - A

6 - H

7 - B

8 - F

9 - J

10 - C

a strand of DNA has the sequence GATTACA. what will the sequence of the complementary strand of DNA?

Answers

Answer:

CTAATGT i believe.

Explanation:

A=T

C=G

G=C

T=A

If you replace GATTACA with these complementary parts/letters, etc. you will get your answer!

Hope this helps!

Tip: The only thing that changes when finding an RNA strand is that there is Uracil (U). So when finding a complementary RNA strand A=U while everything else is the same.

I need help plsss & fasttt

Answers

Answer:

C?

Explanation:

Greenhouse gases are measured by their ability to trap outgoing solar radiation and convert it to heat, warming the atmosphere.
Global warming potential is defined as the ability of an atmospheric gas to contribute to increasing global temperatures and
anthropogenic climate change. Carbon dioxide is used as a baseline for global warming potential, with a GWP of 1. What best
explains why CFCs (chlorofluorocarbons) have a GWP
nearly 5000?

Answers

Answer:

Greenhouse gases, such as carbon dioxide, methane, nitrous oxide, and certain synthetic chemicals, trap some of the Earth's outgoing energy, thus retaining heat in the atmosphere. This heat trapping causes changes in the radiative balance of the Earth—the balance between energy received from the sun and emitted from Earth—that alter climate and weather patterns at global and regional scales.

Multiple lines of evidence confirm that human activities are the primary cause of the global warming of the past 50 years.1 Natural factors, such as variations in the sun's output, volcanic activity, the Earth's orbit, the carbon cycle, and others, also affect Earth's radiative balance. However, beginning in the late 1700s, the net global effect of human activities has been a continual increase in greenhouse gas concentrations.

This change in concentrations causes warming and is affecting various aspects of climate, including surface air and ocean temperatures, precipitation, and sea levels. Human health, agriculture, water resources, forests, wildlife, and coastal areas are all vulnerable to climate change.

Many greenhouse gases are extremely long-lived in the atmosphere, with some remaining airborne for tens to hundreds of years after being released. These long-lived greenhouse gases become globally mixed in the atmosphere and their concentrations reflect past and recent contributions from emissions sources worldwide. Others, like tropospheric ozone, have a relatively short lifetime in the atmosphere.

Explanation:

Brainliest please?

What is a Codon? What does it code for?

Answers

Notes?jdjsjdjdjdjdjdj
A codon is a sequence of three nucleotides which together form a unit of genetic code in a DNA or RNA molecule.
The genetic code describes the relationship between the sequence of DNA bases (A, C, G, and T) in a gene and the corresponding protein sequence that it encodes. The cell reads the sequence of the gene in groups of three bases.

Man made chemicals have decreased the amount of which important gas?

Answers

Answer:

Ozone

Explanation:

WHAT IS ATP?

pls real answers .

Answers

Answer:

ATP is a Adenosine triphosphate

(Chemical compound )

Adenosine triphosphate is an organic compound and hydrotrope that provides energy to drive many processes in living cells, e.g. muscle contraction, nerve impulse propagation, condensate dissolution, and chemical synthesis.

Explanation:

Hope it help.

3 points
Hemorrhagic disease at birth causes internal bleeding which eventually
results in prolonged wound healing in newborns. Which of the following
vitamins do these newborns lack at birth? *
Vitamin A
Vitamin C
Vitamin D
Vitamin K

Answers

Answer:

it's vitamin D

Explanation:

i looked it up on Google

WILL GIVE BRAINIEST!! What is the following image an example of?

Abiotic factors

Climax
community

Protist

Pioneer Species

Answers

Pioneer species is the answer

explain how the structure of a cell´s membrane is related to its function.

Answers

Answer:

The primary function of the plasma membrane is to protect the cell from its surroundings. Composed of a phospholipid bilayer with embedded proteins, the plasma membrane is selectively permeable to ions and organic molecules and regulates the movement of substances in and out of cells.

The structure of cell membrane helps in being selectively permeable that play a major role in regulating the entry and exit of molecules into and out of the cell.  

The cell membrane is a biological membrane that makes the barrier between the interior of all cells and the outside environment. It is composed of a phospholipid bilayer with embedded proteins.

Due to phospholipid bilayer that has hydrophilic heads toward outside and intercellular matrix and hydrophobic tails in the middle, it is selectively permeable to ions and organic molecules:

It forms a physical barrier between the cell and the external environmentselected necessary molecules to pass through itregulates the entry and exit of molecules into and out of the cell.  permits the entry of vital molecules like water, oxygen and amino acids, glucose into the cellthese molecules are crucial for various life processesmetabolic waste products are expelled through the cell membrane.it provides signals from one cell to another.

Thus, the major function of cell membrane is due to its structure.

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What are the correct answers?

Answers

Answer:

2 is 700 because it wants the total distance so we r gonna add 400+300=700

3 is change in velocity

Explanation:

How do the light-dependent reactions relate to the Calvin cycle?

Answers

Well for the light dependent reaction the plants require sunlight and the Calvin cycle does not, the Calvin cycle also has CO2 go into it and they create divergent things such as the Calvin cycle creating glucose I hope this helped

When the sun impacts weather, an interaction with the __________ takes place.HELP ME!!!!
atmosphere
biosphere
geosphere
hydrosphere

Answers

Answer:

hydrosphere

Explanation:

Answer:

Hydrosphere :)

How is a recessive allele different from a dominant allele?

Answers

Answer:

A recessive allele isn't shown in the phenotype, but a dominant allele is shown in the phenotype.

Sorry, I don't remember much.

Dominant allele is dominant while the recessive isn’t. So when an organism is formed, usually the dominant allele is what comes out, however, depending on the circumstance, sometimes the recessive allele is what comes out

HELP ME PLEASE!!!!!!!

Answers

Answer:

I think its the first one but I'm not sure

Answer:

Its the first one

Explanation:

exhale, cell respiration

Select the correct locations on the image. The diagram illustrates the evolution of the universe, starting from the big bang. Each concentric circle represents a stage in the evolution as stated by the big bang theory. The arrows illustrate the changes that happened after the big bang and leading up to the stage where gases were formed that later led to the formation of stars and galaxies. Choose the inaccurate statements on the diagram.​

Answers

Answer: the universe keeps expanding

Explanation:

Universe kept expanding is an inaccurate statement on the diagram.

What is big bang theory?

The most popular theory for how the universe came into being is called the Big Bang Theory. Simply expressed, it states that the universe as we now understand it originated from an unimaginably hot and dense single point and expanded over the course of 13.7 billion years, initially at unfathomable speeds and subsequently at a more palpable pace.

The universe's expansion, cosmic microwave background radiation, abundances of the lightest chemical elements, age of the earliest known stars, and abundances of these elements are some of the major evidences for the big bang idea.

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Biochemistry Unit Test
Which equation best represents conservation of matter? (1 point)
3H2O + 3CO2 → C6H12O6 + 602
6H2O + 6CO2 + C3H603 + 302
6H2O + 6CO2 → CH12O6 + 602
6H2O + 10CO2 → C5H12O6 + 402
i’m so sorry for asking so many questions!

Answers

3H2o+3CO2__c6H12o6+6O2

Conservation of matter is the law that states the amount of matter involved and produced. The reaction, 6H₂O + 6CO₂ → C₆H₁₂O₆ + 6O₂ follows the law. Thus, option C is correct.

What is conservation of matter?

Conservation of matter has been the law used in science that defines the amount or the mass of the matter to remain the same even after undergoing a chemical reaction where the reactant yield product.

In some cases, the matter seems to be lost but in reality, it is due to the change in the phase of matter. So, the mass in a system is a constant that is neither added nor removed.

The equation, 6H₂O + 6CO₂ → C₆H₁₂O₆ + 6O₂ best represents the law of conservation as there are 12 hydrogens, 6 carbon, and 18 oxygen on both sides of the reaction.

Therefore, option C. 6H₂O + 6CO₂ → C₆H₁₂O₆ + 6O₂ follows the law of conservation of mass.

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Are tyere any mammalian cells that would be a good source for dividing cells?

Answers

Answer:

Explanation:

This question appear wrong. Cells do not divide other cells as cells have the ability to undergo individual cell division as seen in cell cycle. However, there are some factors that could lead to increased cell division; factors such as cancer and viral infection can lead to increased division of certain cell types.

There is also a cell organelle present in mammalian cells that facilitates the division of a cell - this organelle is known as centriole. Centrioles do this by assisting in the separation of chromosomes during the mitotic phase of the cell cycle.

PLEASE HELPPPPP Im almost out of time

Answers

The moon revolves around the earth

Answer:

B. The moon revolves around the sun.

In medium-sized stars such as the Sun, nuclear fusion almost always means the fusing of (1)________ nuclei to form (2)_________, but larger stars can produce elements as heavy as (3)_________.

1.
Helium
Hydrogen
Nitrogen

2.
Hydrogen
Lithium
Helium

3.
Copper
Silver
Iron

Answers

Answer:

1: hydrogen

2: helium

3: iron

Explanation:

In medium-sized stars such as the Sun, nuclear fusion almost always means the fusing of hydrogen nuclei to form helium, but larger stars can produce elements as heavy as iron. The correct options are B, C, and C.

What is Nuclear fusion?

The primary distinction between these two processes is that fission is the splitting of an atom into two or more smaller ones whereas fusion is the fusing of two or more smaller atoms into a larger one.

In nature, fission reactions are uncommon. Many highly radioactive particles are created during fission.

The Sun and other stars are powered by nuclear fusion reactions. In a fusion reaction, two light nuclei fuse to form a single heavy nucleus. The process releases energy because the overall mass of the resulting single nucleus is less than the mass of the two initial nuclei.

Therefore, the correct options for 1, 2, and 3 are B, C, and C, respectively.

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Which of these choices is the cytoskeleton's main structure? It provides support, structure, and
holds the organelles in place.
A. Phospholipids
B. Microtubules
C. Ribosomes
D. Cilia

Answers

Answer: The answer is B

The cytoskeleton's main structure that provides support, structure, and holds the organelles in place is microtubules and the correct option is option B.

Microtubules are the main structure of the cytoskeleton. They are composed of tubulin protein subunits and play a crucial role in providing support, structure, and maintaining the shape of the cell.

Additionally, microtubules are involved in various cellular processes, including cell division, intracellular transport, and the positioning of organelles within the cell. They form a dynamic and flexible network that contributes to the overall stability and organization of the cell's interior.

Thus, the ideal selection is option B.

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What are two things that can pass through a cell membrane which makes it selectively permeable?​

Answers

Molecules of oxygen and carbon dioxide pass through the membrane via diffusion. However, polar molecules cannot easily pass through the lipid bilayer. They can reach the hydrophobic surface, but can't pass through the lipid layer to the other side of the membrane.

PLEASE MARK ME AS BRAINLIEST

Lucy and Jim have been married for 5 years and have decided they would like to try to have a child. However, a rare genetic disorder runs in both or their families, so they decide to go to a genetic counselor to determine the chances that their future child will be affected. The disease achondrogenesis 1a affects the ability of proteins necessary for bone and cartilage development to be modified and packaged properly after leaving the endoplasmic reticulum. The results are devastating. Individuals with this disorder are often stillborn or die soon after birth from respiratory failure. Fortunately, after doing a genetic screening, the genetic counselor determined that while Jim is a carrier for this autosomal recessive disorder, Lucy is not. Therefore, if they do have a child it is unlikely that their child will be affected. Which organelle has been compromised

Answers

Answer:

The Golgi complex is compromised      

Explanation:  

The Golgi complex helps in the process of synthesis and packaging of proteins and lipids, especially those proteins that are for exportation. The organelle´s function is to manage the recently synthesized proteins, to transform them, and to export them to other places.

Different proteins are synthesized in the endoplasmic reticulum and sent to the Golgi complex in vesicles, where it happens the final association of carbohydrates with proteins. Finally, protein is transported from the Golgi complex to its final destiny. Proteins destined to a certain place are packaged all together in the same vesicle and sent to the target organ. In the case of membrane proteins, they are packaged in vesicles and sent to the cell membrane where they get incrusted.

By being affected by the achondrogenesis 1a, the Golgi complex loses its functions and is incapable of finishing the protein synthesis and transport process, affecting other cells and their functions.  

Which structure is represented by the letter C?

Choose 1 answer:

(Choice A)
Chloroplast

(Choice B)
Vacuole

(Choice C)
Nucleus

(Choice D)
Mitochondria

Answers

C! I just did cells and their organelles!

Which factor of the tundra ecosystem is biotic? wind dead bird carbon dioxide temperature

Answers

Answer:

I believe the answer is Dead Bird.

Explanation:

Answer:

It's B, Dead Bird

Explanation:

I hope that helps!!!!!!!!!!!!!!!

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