Answer:
On average, 2,000 to 3,000 orangutans are killed every year. While exact orangutan population counts are always a challenge – estimates put current counts between 50,000-65,000 orangutans left in the wild.
At this rate of loss, many experts believe orangutans could be extinct in the wild in less than 50 years.
Never before has their very existence been threatened so severely. Economic crisis combined with natural disasters and human abuse of the forest are pushing one of humankind’s closest cousins to extinction.
The main threats in today to the survival of orangutans
Loss of habitat through deforestation
Palm oil plantations
Illegal hunting
Illegal pet trade
Explanation:
9) The table shows the minimum pH that some common freshwater organisms can survive in water.
Which organism would be MOST sensitive to acid rain?
A) bass
B) clams
C frogs
D) mayflies
Answer:
Explanation:
The correct answer is option B- Clams
It is very clear how acid rain is affecting our ecosystem. Plants, animals and other living organisms are effected including their habitat.
When acid rain enters soil, it leaches aluminium from soil particles and mixes it with soil. Aluminium level in water intoxicates the water content which is critical for the survival of water animals.
The critical PH level for clams is 6.
What are three main disadvantages of genetic modification?
Answer: The nutritional value of foods can be less.
Pathogens adapt to the new genetic profiles.
There can be negative side effects that are unexpected.
Explanation:
Why are starfish such a problem for commercial fishermen?
Answer:
They occur naturally on reefs throughout the Indo-Pacific region, and when conditions are right, they can reach plague proportions and devastate hard coral communities. Our research has revealed crown-of-thorns starfish are a major cause of coral loss on the Great Barrier Reef, after coral bleaching.
Which of the following shows a correct food chain?
A)leaf - ant > anteater
B)leaf anteater - ant
C)anteater → ant -> leaf
D)ant → leaf → anteater
the answer would be A i wasnt paying attention srry
What evidence do scientists have that Earth has been hit by large objects, like asteroids, in the past? Check all that apply.
layer of volcanic ash
layer of burned organic matter
change in average global temperature
mass extinctions
earthquake activity
Answer:
b, d, a
Explanation:
i dont really know these just sound right to me also hi
Answer:
b. c, d on edge
Explanation:
What 3 phyla constitute most of the Animal Kingdom? (specify if invertebrate
or vertebrate)
Answer:
arthropoda : invertebrate
mollusca : invertebrate
chordata : vertebrate
Explanation:
There are 9 in total but those are the main 3
Conduct an investigation to provide evidence that living things are
made of cells
Please help this is 7th grade science btw
Answer:
In Late 1600s Anton von Leeuwenhoek develops a more powerful microscope that allows him to see living cells like bacteria.
In Early 1800s Matthias Schleiden and Theodor Schwann conclude that all living organisms are made of cells, and that cells can be produced from other cells.
Explanation:
Which action is necessary to halt the decline in biodiversity?
A. continue using fossil fuels at the present rate
B. adopt laws that address issues of economy over environment
C. continue mining practices as they are
D. adopt ecological conservation practices
Answer:
Adopt ecological conversation practices
Explanation:
This chart shows characteristics of three different types of waves.
A 3-column table with 1 row titled Three Different Types of Waves. The first column labeled Wave X has entry visible light. The second column labeled Wave Y has entry X-ray. The third column labeled Wave Z has entries ocean wave.
Which statement is best supported by the information in the chart?
Wave X and Wave Y are mechanical waves, and Wave Z is an electromagnetic wave.
Wave X and Wave Y are electromagnetic waves, and Wave Z is a mechanical wave.
Wave X and Wave Z are electromagnetic waves, and Wave Y is a mechanical wave.
Wave X and Wave Z are mechanical waves, and Wave Y is an electromagnetic wave.
Wave X and Wave Y are electromagnetic waves, and Wave Z is a mechanical wave. Thus, option "B" is correct.
What is the difference between electromagnetic wave and Mechanical waves?An electromagnetic wave does not require a material medium for propagation.
Mechanical waves require material medium for their propagation.
Mechanical waves Electromagnetic waves
Ocean water Light waves waves
Sound waves Radiation waves
Earthquake waves X-ray waves
Thus, option "B" is correct.
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Answer:
Wave X and Wave Y are electromagnetic waves, and Wave Z is a mechanical wave
Explanation:
Describe the exchange of co2 and o2 the lungs
Explanation:
Co2 and O2 in the lungs are exchanged when alveoli send oxygen to the capillaries surrounding them to the nearby blood vessels which contain c02, and osmosis occurs where o2 is now in the vessels while co2 is now in the alveoli and therefore the lungs, and then the co2 is expelled out of the lungs.
What is a keystone species? Why are keystone species important to maintaining a balanced ecosystem?
Answer:keystone species are a species that is extremely important to the ecosystem or something. If keystone species go extinct, it could cause a huge problem for the ecosystem
Explanation:
give two examples of conductors and insulators of heat
Answer:
Solution 2: Conductors: Copper, aluminum, and iron. Insulators: Wood, water and air.
Explanation:
hope it will help
I can list and describe how environmental factors can cause cell damage/mutations
Answer:
if u can list it then list it :/
Explanation:
Environmental factors help cells and organisms mutate to get better results and less deaths in an ecosystem
ur welcome :)
brainliest please?
You find an organism in the back yard that is growing on an old decaying stump and appears to be nonmotile (doesn't move). It has no leaves and is not green, but is definitely multicellular. What Kingdom does it most likely belong to?
Plantea
Protista
Fungi
Eubacteria
Answer:
eukaryote
Explanation:
it's probably a fungi which is eukaryotic
Which of these describes a situation where natural selection could lead to evolution?
A. Radiation causes the leaves of sunflowers to curl.
B. Predation removes slower antelope from the herd.
C. Incubation at warmer temperatures produces female turtles.
D. Precipitation at higher rates stimulates the growth of elm trees.
if I have two unicellular organisms, will they have the same genetic code? yes or no
Answer:
I think yes
Explanation:
Question 6 of 10
Which of the following is a function of your kidneys?
A. They send wastes removed from your blood to the large intestine.
B. They remove water from your blood when it is not balanced by
salts.
C. They add salt to your blood if you drink too much water.
D. They add water to your blood if you eat too much salt.
Help me please that will mean a lot to me if y’all help me
D is ans becauseit convert
Explanation:
convert nitrogen gas in the atmosphere to ammonia. Nitrifying bacteria convert ammonia to nitrites or nitrates.
All organisms have the same basic needs.true or false
True
Explanation:
I learned this in science
Locally, many citizens have shown concern of the new natural gas pipeline coming through Colquit County. Which of the following justifies their concerns?
Answer:
the followning justifies their concerns: Wheat, Hardworking self laborers, inflation, these things are all a cause.
Explanation:
If you want to get into it deeper look through the laboring physcics.
At which location is the temperature of the ocean floor bedrock most likely highest?
1
A
2
3.
B
C
D
Seafloor bedrock is younger near the ridge and older farther away.
Sana makatulong po NOT LYINGWhat do a burrowing owl, mole rat, European hedgehogs have in common
Answer:
They all have good senses and similar traits.
Decomposition of the ozone may lead to an increase in mutations because
Mutations increase due to the decmoposition of the ozone because it can allow the penetration of UV radiations such as UVA, UVB, and UVC to reach Earth. These types of radiations can harm us by causing certain diseases in humans such as skin cancer, eye damage, and of course, mutations.
PLEASE HELP!!!
BRAINLIEST TO CORRECT ANSWER!!!
The diagram is a model of one way that materials move into a cell.
Which sentence explains what happens in the first step of the process shown?
A. The cell membrane surrounds particles outside the cell.
B. Phospholipids in the cell membrane allow particles to pass through.
C. Transport proteins push particles into and out of the cell.
D. The vacuole opens and releases particles from the cell.
Answer:
the answer is A
sorry if wrong but positive the answer is A
An increase in the rate of evolution in a population will be affected by which scenario?
A. Sunlight stimulates the growth of ash leaves.
B. Wind blows pollen grains to nearby ash trees.
C. Weevils eat the larger seeds dropped by ash trees.
D. Migrating birds rest in ash trees on their journey south.
Evolution Review Worksheet
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common ancestor.
Adaptation
is a population of squirrels that live in the forest. One day,
Adaptive Radiation
. the iquirreis decide to leave the forest and co live
Analoçou Structun
few miles away,
Bottieneck Effect
Founde ffect
off the coast of Mexico.
Gene Flow
17.
The cichlid fishes of Malawi rapidly changed into
Homologous Structures
species!
s a specialized:
for ei
Natural $
food.
18
There are two populations of wild horses: one that has mostly white horses and one that has mostly
brown horses. One day, a white horse wanders off and decides to join the brown horse population, adding the
white horse gene to the brown horse population
19. -9 Insects and Bats did
both developed
20.
There are tan mice
desert.
whiter
easily seen by snakes
so over time, the tan :
• prevalent because they
and reproduce.
21
Because it is colder during the winter, the bears that live north grow thicker fur to protect them from
the freezing temperatures.
Explanation:
d decides to join the brown horse population, adding the
white horse gene to the brown horse population
19. -9 Insects and Bats did
both developed
20.
There are tan mice
desert.
whiter
easily seen by snakes
so over time, the tan :
• prevalent because they
and reproduce.
21
Because it is colder during the winter, the bears that live north grow thicker fur to protect them from
the freezing temperatures
A ___ is the reproductive part of the plant that covers and protects the seeds.
A. seed coat
B. fruit
C. flower
D. none of the above
Answer:
The correct answer would be pistil, which isn't one of the options, so pick option d., or none of the above.
Explanation:
Please brainliest answer :)
Why are scientists not able to agree on whether or not viruses are alive?
a. Viruses cannot evolve but can infect living cells.
b. Viruses cannot reproduce inside living cells but can evolve.
c. Viruses cannot infect living cells but can live independently.
d. Viruses cannot live independently but can reproduce inside living cells.
Answer:
A .Viruses cannot evolve but can infect living cells.
When an animal eats, food stays in the stomach for a period of time. When a unicellular organism, such as paramecium, takes in food, the food is contained in which organelle?.
When a unicellular organism, such as a paramecium, takes in food, the food is contained in a specialized organelle called the "food vacuole." The food vacuole is a membrane-bound sac within the cytoplasm of the unicellular organism.
Phagocytosis is the process by which the unicellular organism surrounds and engulfs solid particles, such as food particles or other microorganisms, forming a food vacuole. It forms by engulfing and enclosing the food particles during the process of phagocytosis, which is a type of endocytosis.
Once the food vacuole is formed, it fuses with lysosomes (organelles containing digestive enzymes) to digest the ingested food and break it down into smaller molecules. These smaller molecules are then used for various cellular processes, including energy production and growth, within the unicellular organism.
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The maximum number of years a human can live is called:.
Lifespan is an indicator that measures the average of the maximum number of years a human can live.
What is lifespan?It is the number of years that a newborn can live according to the standard of mortality by age of the population of its country.
In other words, it is a concept that only makes sense for one generation and is obtained as part of a mortality table that refers to the average number of years that a person is expected to live after birth.
Therefore, we can conclude that lifespan is an indicator that measures the average of the maximum number of years a human can live.
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