A food chain is a simplified way to show the relationship of organisms that feed on each other. It’s helpful to classify animals in a simple food chain by what they eat, or where they get their energy.
Green plants, called producers, form the basis of the aquatic food chain. They get their energy from the sun and make their own food through photosynthesis. In the Great Lakes, producers can be microscopic phytoplankton (plant plankton), algae, aquatic plants like Elodea, or plants like cattails that emerge from the water’s surface.
Herbivores, such as ducks, small fish and many species of zooplankton (animal plankton) eat plants. Carnivores (meat eaters) eat other animals and can be small (e.g., frog) or large (e.g., lake trout). Omnivores are animals (including humans) that eat both plants and animals. Each is an important part of the food chain.
In reality, food chains overlap at many points — because animals often feed on multiple species — forming complex food webs. Food web diagrams depict all feeding interactions among species in real communities. These complex diagrams often appear as intricate spider webs connecting the species.
This lesson demonstrates that changes in one part of a food chain or web may affect other parts, resulting in impacts on carnivores, herbivores, and eventually on producers. An example of this might be the harmful effects of pollution. The point that should be made is that when something disrupts a food web, humans should try to understand and minimize the disturbance. Students should also come to recognize that humans, too, are part of this complex web of life.
By dissecting an owl pellet, you can learn __.
A) what the owl is drinking
B) whether the food an owl is eating is diseased
C) what type of animals the owl ate
D) where the owl lives
Answer:
C. what type of animal the owl ate
1 point
Earth's layers can be described by either chemical composition or by
physical properties. Going out from the center of the earth, the layers of
earth as described by their chemical composition are: *
Core, Mantle, Crust
Crust, Mantle, Core
O Inner Core, Outer Core, Mesosphere, Asthenosphere, Lithosphere
Answer:
Core, Mantle, Crust
Explanation:
The layers of the earth are the inner core, the outer core, the mantle, and the crust.
A cell with 20 chromosomes undergoes MEIOSIS. Which of these statements is true?
1 Point)
a. 4 daughter cells will be created and each daughter cell will have 10 chromosomes.
b. 2 daughter cells will be created and each daughter cell will have 10 chromosomes.
c. 4 daughter cells will be created and each daughter cell will have 20 chromosomes.
d. 2 daughter cells will be created and each daughter cell will have 20 chromosomes.
Answer:
A.
Explanation:
By the end of meiosis 4 daughter cells will be produced with half the amount of chromosomes the original parent cell has, haploid.
A cell with 20 chromosomes undergoes meiosis produces 4 daughter cells and each daughter cell will have 10 chromosomes. Thus option A is correct.
What is Meiosis?The cell division in which a cell divides twice to form four haploid daughter cells called as Meiosis.
The cell division occur in two steps nuclear division or karyokinesis and cytoplasmic division called as cytokinesis.
This type of cell division are seen in sexually-reproducing organisms mostly germ cells.
During reproduction diploid organism produces haploid number of gametes such as egg and sperm.
The gametes unite to create a new zygote with the same number of alleles as the parents.
The meiosis occur in 2 stages that is meiosis I, meiosis II and Each stage is classified into several phases such as Prophase, Metaphase, Anaphase, Telophase, Cytokinesis.
Prophase I of meiosis I can have five subphrases, such as Leptotene, Zygotene, Pachytene, Diplotene and Diakinesis.
Hence, option A is correct.
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HURRY UP, I DON'T HAVE ANY TIME? PLEASE??? Provide three examples of predator-prey interactions, each from a different ecosystem. (who is eating who? Explain + identify what ecosystem are they in) (please something that's is related to marine biology)
Answer:
Shark and seal (Ocean), Lion and zebra (Savana), Chameleon and bug (Rainforest). Hope this was quick enough.
Explanation:
would C be correct for this question?
Answer:
Yes, none of those other answers are reasonable
Explanation:
Answer:
Yea
Explanation:
That's the only answer that actually makes sense
what is an advantage of external fertilization?
Answer: Helps keep the species alive
Explanation:
When the eggs are externally fertilized, there is a greater chance for multiple different males to fertilize the eggs. This gives Gene diversity, and helps keep the species alive. It may also help keep the eggs in good condition. For example, when fish lay eggs, the water helps keep the eggs moisturized.
Why do temperatures differ between air, land, and water?
(science btw)
Answer:
The ocean water isn't moving into or through the atmosphere as a result of the sun's heating of the water, convection isn't the process influencing air and water temperature difference. The heat of the ocean is being given off radiated into the air, as a result making the air substantially warmer
Explanation:
How do cells, tissues, organs, and organ systems work
together in a multicellular organism?
Answer:
Key points. Humans—and other complex multicellular organisms—have systems of organs that work together, carrying out processes that keep us alive. ... Cells make up tissues, tissues make up organs, and organs make up organ systems. The function of an organ system depends on the integrated activity of its organs.
Explanation:
Mitosis produces 2 genetically identical diploid cells. Meiosis produces
2 genetically different diploid cells.
2 genetically different diploid cells.
4 genetically different haploid cells.
4 genetically different haploid cells.
4 genetically identical haploid cells.
4 genetically identical haploid cells.
2 genetically identical diploid cells.
2 genetically identical diploid cells.
Answer:
4 genetically different haploid cells
Explanation:
meiosis gives rise to four unique daughter cells, each of which has half the number of chromosomes as the parent cell.
4 genetically different haploid cells.
What is Meiosis?
In sexually reproducing organisms, meiosis is a kind of cell division that results in a reduction in the number of chromosomes in gametes (the sex cells, or egg and sperm). Body (or somatic) cells in humans are diploid, meaning they have two sets of chromosomes (one from each parent).
The egg and sperm that combine during fertilization must be haploid, or having only one pair of chromosomes, in order to sustain this state. Each diploid cell divides twice during meiosis to produce four haploid daughter cells, which are the gametes.
Nearly every human cell contains 46 chromosomes, 23 of which come from one of our parents and 23 highly similar chromosomes from the other parent.
Therefore, 4 genetically different haploid cells.
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What is one way people have negatively affected land resources?
A) Habitat restoration
B) Urbanization
C) Terrace farming
D) Reforestation
Answer:
b
Explanation:
Urbanization is one way people have negatively affected land resources. Therefore, the correct option is B.
What is Urbanization?The process of urbanization occurs when the percentage of a country's population living in urban areas increases. This is a result of rural-urban migration, which occurs when people move from rural to urban areas in search of better job prospects, social services, and living standards. Urbanization has both beneficial and harmful effects on the environment and society.
On the plus side, urbanization can promote economic growth, better infrastructure, and greater access to social services, including healthcare, education, and social assistance. Additionally, it helps reduce stress on rural communities, which may experience issues of resource scarcity, resource overabundance, and environmental degradation.
Therefore, the correct option is B.
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Which point shows the prevailing westerlies?
O1
O 2
O3
O4
Answer:
1
Explanation:
Prevailing Westerlies are the winds in the middle latitudes between 35 and 65 degrees latitude. They tend to blow from the high pressure area in the horse latitudes towards the poles. These prevailing winds blow from the west to the east steering extra-tropical cyclones in this general manner.
What is the sentence stem cell?
Answer:
Sentences Mobile
Stem cells in embryos generate all other tissues in the body. Opponents say the use of embryonic stem cells would encourage abortions.
Explanation:
Sentences Mobile
Stem cells in embryos generate all other tissues in the body. Opponents say the use of embryonic stem cells would encourage abortions.
I need the last two questions. Can anyone help?
1. Color can affect a pocket mouse’s ability to survive because if a light colored mouse is in a dark area, it will not survive. A dark colored mouse will survive in a dark area because it will blend in with its surroundings.
2. On the dark rock, mice with dark fur are more likely to survive because they will blend in with the rock.
Help me ASAP please!!!!!!!
1 pts
Question 30
7.3 Muscle cells require a great amount of energy. Which would you expect to find
in large numbers in muscle cells?
O vacuoles
o mitochondria
O centrioles
O endoplasmic reticulum
o ribosomes
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Answer:
Mitochondria
Explanation:
Mitochondria are the power house of cell which produce ATP
The different forms of a gene are called
(1 Point)
traits
hybrids
alleles
what are the main parts of the respiratory system
Answer:
lungs ,diaphragm ,mouth ,nose
Answer:
Explanation:
Nose.
Mouth.
Throat (pharynx)
Voice box (larynx)
Windpipe (trachea)
Large airways (bronchi)
Lungs.
Which of these was not characteristic of the first cells on earth
Answer:
Can you elaborate and I will be happy to get back to you with a response after!
Explanation:
PLEASE HELP ME
1. Which of the following is a characteristic that all living organisms share?
a. Ability to taste and smell
b. Ability to use energy
C. Ability to breath
d. Ability to do photosynthesis
Answer:
C. Ability to use energy.
Explanation:
All living organisms perform several life processes in order to live, which results in use of energy.
Webbed fingers is inherited as a recessive X-linked trait. An unaffected male has children with an affected female. What is the chance that their male children will have webbed fingers?
A. 50% of their male children will have the trait.
B. 100% of their male children will have webbed fingers
C. 0% of their male children will have webbed fingers.
D. 25% of their male children will have the trait
NOTE : I know that the answer is not A. 50% of their male children will have the trait.
Answer:
its b
Explanation:
PLEASE HELP
Students visiting a zoo see a poison dart frog. This bright red frog
is about 2-centimeters long. It eats ants and other small insects.
The poison dart frog secretes a poisonous chemical from its skin.
It lives around green tropical plants.
What is the advantage of this frog having a bright red color in a
green environment?
A)it helps to hide among plant leaves
B)it helps to sneak up on small insects
C)it serves as a warning to hungry predators
D)it prevents overheating in a tropical climate
Which is an inherited trait?
O flavor of an apple from a particular tree
O hierarchical status of a wolf ina pack
O ability to ride a bike
O interest in starhp collecting
Answer:
A. flavor of an apple from a particular tree
Explanation:
edge
please help i’ll give the brainliest if you give a correct answer tysm
Answer:
C. how close earth is to the sun
Answer:
C
Explanation:
Match type of adaptation to the correct example
Answer:
hope this helps you! :)
all you need is in the photo
Answer:
Im pretty sure it's C? Maybe it's D though.
Should you be worried about the direction that a plant’s stem will grow if you plant the seeds on their sides? Why or why not?
Answer:
Explanation:
Metal
________ is a collection of all the organisms that live in a particular place, together with their nonliving, or physical, environment. They vary in size from all the organisms living on a decaying rock to the whole wetland.
A Biome
B Biosphere
C None of the above
D Community
E Ecosystem
what is a cellular structure that performs a specific function in the cell
Answer:
Cells consist of six home functions. They provide structure and support, facilitate growth through mitosis, allow passive and active transport, produce energy, create metabolic reactions and aid in reproduction.
Someone help me pleaseeee
Answer:
oxygen and carbon dioxide
Answer:
B
Explanation:
oxygen and carbon dioxide
all you need is in the photo
Answer:
D
Explanation:
d because since both bears mated, there is a chance of evolution from there genes