Looking at the image of the freshwater lake ecosystem in the reading, can you name biotic and abiotic factors in this specific ecosystem? What changes in this ecosystem would impact the biotic factors? A sample answer could include the following:







Biotic: Fish Crayfish Zooplankton Grasses



Abiotic: Sun Sedimentation Weather Changes:



Water pollution Air pollution Overfishing Dredging of the bottom of the lake

Answer:

Biotic factors include: Fish (phytoplankton-eater, zooplankton-eater, predator)

, Crayfish

, Zooplankton

, Grasses, phytoplankton, herbivorous insect, worms, etc.

Abiotic factors include: Sunlight, Rainfall, Sedimentation, Weather, Minerals, Temperature.

Changes that would impact the biotic factors include:

Water, air pollution

Human activities: such as overfishing, rechanneling of the water for purposes such as irrigation, domestic or industrial use, or dredging of the bottom of the lake.

Explanation:

An ecosystem is composed of biotic and abiotic factors. Abiotic factors are non-living environmental factors such as water, air, soil, sunlight, and minerals. In aquatic ecosystems, abiotic factors include substrate type, water depth, nutrient levels, temperature, salinity, and waterflow. Biotic factors are the living organisms in the ecosystem and they include animals, birds, plants, fungi, etc.

In the image of the freshwater lake ecosystem given,

Biotic factors include: Fish (phytoplankton-eater, zooplankton-eater, predator)

, Crayfish

, Zooplankton

, Grasses, phytoplankton, herbivorous insect, worms.

Abiotic factors include: Sunlight, Rainfall, Sedimentation, Weather, Minerals, Temperature.

Changes that would impact the biotic factors include:

Pollution: pollution such as water pollution and air pollution will adversely impact the biotic factors.

Human activities: such as overfishing, rechanneling of the water for purposes such as irrigation, domestic or industrial use, or dredging of the bottom of the lake.

Answer:

Biotic factors include: Fish (phytoplankton-eater, zooplankton-eater, predator)

, Crayfish

, Zooplankton

, Grasses, phytoplankton, herbivorous insect, worms, etc.

Abiotic factors include: Sunlight, Rainfall, Sedimentation, Weather, Minerals, Temperature.

Changes that would impact the biotic factors include:

Water, air pollution

Human activities: such as overfishing, rechanneling of the water for purposes such as irrigation, domestic or industrial use, or dredging of the bottom of the lake.

What are the defining characteristics of this cell type? a cheek cell

There are four mechanisms that can cause changes in the frequencies of genes in populations: mutation, migration, genetic drift, and natural selection. All four are mechanisms of evolutionary change. What is genetic drift?
A) In a population, it is the changes in allelic frequencies of a gene that are due to chance.
B) A random error/change in the DNA sequence. These may be inherited or occur in cells during the lifetime of the organism
C) Also known as gene flow. It is any movement of individuals and/or the genetic material they carry, from one population to another.
D) There is variation in any population differential reproduction occurs and over time a more advantageous trait exists in the population.​

Enzymes can be immobilised and then used in bioprocessing.

a) What is meant by immobilisation?
b) Name a substance that is used to immobilise enzymes.
c) Give one application of a named immobilised enzyme. In your answer, refer to substrate, enzyme and product.

A mitochondrion has two membranes. The inner membrane is highly folded, as shown in the diagram below.
Outer
membrane
Inner
membrane
The folds greatly increase the membrane's surface area. This improves the ability of the mitochondrion to do
which of the following?
O convert solar energy to chemical energy
Odigest metabolic wastes in the organelle
O produce ATP during cellular respiration
move the cell through water

Pls help i dont understand :( will give Brainliest + 25 points!!

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what type of tide has the highest amplitude

- a diagram of a food chain in the Everglades
- a plastic replica of the human digestive system
- a mathematical equation for finding the speed of an object

Would Be A Example Of...

model

hypothesis

observation

experiment

The plants in the chaparral biome are __________.
A)
widely spaced to maximize water collection
B)
closely spaced to form dense ground cover
C)
generally deciduous
D)
adapted to heavy snowfall

How many cellular divisions take place during meiosis?

Which of the following characteristics of these offspring confirms
that they were produced by sexual reproduction?

If the organisms in this food chain shown below were arranged in an energy pyramid, which organism would have the most available energy? C SRED producer decomposer primary consumer secondary consumer O producer O decomposer O primary consumer O secondary consumer​

Which pair best matches a type of land cover with an appropriate land use?
A. Forestland
Growing crops
B. Developed land
Grazing livestock
O C. Urban land
Growing crops
D. Pastureland – Grazing livestock

A
Which organelles found in both plant and animal cells have the function of
assembling protein molecules from amino acids?
Vacuoles
B Ribosomes
с DNA
D Golgi bodies

What happens when weathering and erosion work together?

Astronauts on a spaceship in outer space notice their instruments detect energy from the Sun. Which of the following provides evidence that the Sun’s energy is moving through outer space?
A. Molecular collisions of visible light and infrared radiation
B. Electromagnetic radiation in the form of radio waves
C. Electromagnetic radiation in the form of matter
D. Molecular collisions of gas atoms

Someone please help me on this one thanks

SOMETHING I DONT UNDERSTAND! My sis told me she was on her perio d but then I told her there was this thing called subject and predicate and how she isnt supposed to have a period at the end of her statement because it wouldnt make any sense... and ya, it didnt go well cause' she put on a tantrum.
But the weird thing is that Google said this "Tantrums are most common between the ages of one and four, then decrease when children start school." SO HOW COME I DIDN"T HABE A TANTRUM!! life makes no sense

Please answer the 5 questions thanks

PLS HELP!!!!
What process forms stalactites and stalagmites?

What mRNA sequence will best match the section of DNA shown below?

G – A – T – C – C – T
C – T – A – G – G – C
C – U – A – G – G – A
T – C – G – A – A – G

Plant cells vs Animal cells?

Which compound forms when carbon dioxide diffuses and reacts with seawater?

A. Hydroxide ions
B. Carbonate
C. Bicarbonate
D. Carbonic acid

during a genetic counseling session, you are told that the __ of having brown-eyed child is 50%

animal cells have structures that perform specific functions in the cell. Mitochondria are oranelles that float within the cell. Because they produce most of the cell’s energy, mitochondria are nicknamed the “powerhouse of the cell”.

which of the following types of cells would have the greatest number of mitochondria?

skin cell

blood cell

muscle cell

fingernail cell

Which scenario best describes motion?
A.) a toy train in position 4 on a number line
B.) a race track that is 100 meters long
C.) a ball rolling from point A to point B
D.) a student living 150 miles from Chicago

Which organising consume dead organic matter

what usally accompanies a cold spell in minosota

Include captive breeding, laws and treaties, and habitat preservation

Choose all the answers that apply.

The speed of evaporation _____.

decreases as temperature decreases
increases as temperature increases
increases as surface area increases
decreases as surface area decreases