Answer:
Around 4.1 billion years ago, the first single celled life form appeared on Earth
I'LL GIVE BRAINLIEST (RIGHT ANSWER ONLY)
Which of the following statements about cell organelles is NOT true?
A. Chloroplasts contain chlorophyll and are the site of photosynthesis.
B. Many of the same organelles are located in both plant cells and animal cells.
C. The nucleus in an animal cell has a different primary function than in a plant cell.
D. The endoplasmic reticulum has several roles, including packaging and transporting proteins.
Answer:
C. The nucleus in an animal cell has a different primary function than in a plant cell.Nucleus has the same function in a plant & animal cell.
As mercury moves up the trophic levels in food chains, its concentration
Stays the same
Increases
Decreases
Is eliminated
Answer:
Increases
Explanation:
The concentration of mercury will increases as it moves up the food chain because of biomagnification. For example, a school of small fish consumes a minute amount of mercury each, but then a larger fish eats five of the smaller fish. After this the larger fish has more mercury in its system than one small fish because it ate five small fish (along with the mercury in each of the small fish). Now a seal eats multiple large fish. Overall, the seal has the highest mercury concentration out of all the animals mentioned.
Biomagnification is "the concentration of toxins in an organism as a result of its ingesting other plants or animals in which the toxins are more widely disbursed."
PLEASE HELP L 2.3.2 Test (CST): Evolution
Question 5 of 10
Data from the sequence of amino acids in proteins are
used to infer how living things are related through
evolution. The chart shows part of this sequence for
several organisms' cytochrome-c, a protein used to get
energy from food.
Organisms
Acid Sequences in Cytochrome-c
Based on the sequences shown in the data table, which two organisms are
most closely related?
O A. Kangaroo
B. Duck
C. Tuna
D. Sea star v
SUBMIT
Pseudomonas pomi (P. pomi) has no membrane-bound organelles and obtains nutrients from an outside source. P. pomi is
a eukaryote.
a prokaryote.
a plant.
an animal.
Answer:
Prokaryote
Explanation:
1 point
Cells of a fungus and an animal were being studied. Which of these would
be found in both of these cells? *
cell wall
mitochondria
cilia
chloroplasts
Explanation: both fungi and animal cells have a mitochondria
mitochondria
What causes oceanic plates to move?
Answer:
The main driving force of plate tectonics is gravity. If a plate with oceanic lithosphere meets another plate, the dense oceanic lithosphere dives beneath the other plate and sinks into the mantle. ... However, convection also drives plate tectonics.
what are the function of the meristem?
Answer:
The main function of the meristem is to trigger the growth of new cells in young seedlings at the tips of roots and shoots and forming buds.
What is alternative source of energy .
Answer:
Alternative energy is best defined as the use of energy sources other than traditional fossil fuels, which are considered environmentally harmful and are in short supply. Fossil fuels consist of natural gas, coal, and oil. Currently, fossil fuels are the most used energy source to heat our homes and power our cars.
Explanation:
I hope this helps and pls mark me brainliest! Thank u :)
The skeletal structure of the front limbs of 6 animal: human, crocodile, whale, cat, bird, and bat are all made animal sets of bones. For each animal, indicate what type of movement the front limb is responsible for.
why children should not be forced to choose site in a divorce situation
Answer:
Forcing children to “take sides” in divorce can cause long-lasting psychological damage. As studies consistently show, rates of anxiety and depression are higher in children of divorce with high-conflict co-parents
Explanation:
hope this helps
TRUE OR FALSE: DINOFLAGELLATES IS A GROUP OF BACTERIA THAT USED TO BE CLASSIFIED AS ALGAE
Answer: True
Explanation:
In which organ in the female reproductive system does the zygote implant after fertilization?
A. ovaries
B. fallopian tube
C. uterus
D. vagina
Answer:
indeed correct
Explanation:
correct.
Answer:
Uterus
Explanation:
Egg is fertilized in the fallopian tube, travels down into the uterus where is settles onto the uterine lining and is able to begin cell division and form a fetus.
Label the different parts of a flower.Choose your answer from the box.
Answer:
1 anther
2 petal
3 style
4 sepal
5pollen tube
6 corolla
7 ovary
8 ovule
9 filament
10 stigma
100 POINTS AND BRAINLIEST HELP PLS AWNSER THESE
here yo go, have a wonderful day! :)
Cell Membrane-The protective barrier that encloses all cells and holds the cell together while allowing materials such as nutrients and wastes in and out the cell.
Cytoplasm-The syrup-like liquid that surrounds and protects the organelles inside of a cell.
Nuclues- is a membrane-bound organelle that contains the cell's chromosomes.
which of these is closest to the number of molecules of ATP we get from Anaerobic metabolism of one molecule of glucose? -2
-6
-10
-32
-48
Explanation:
Fat molecules consist of three fatty acid chains connected by a glycerol backbone. Fatty acids are basically long chains of carbon and hydrogen and are the major source of energy during normal activities.
Fatty acids are broken down by progressively cleaving two carbon bits and converting these to acetyl coenzyme A. The acetyl CoA is the oxidized by the same citric acid cycle involved in the metabolism of glucose. For every two carbons in a fatty acid, oxidation yields 5 ATPs generating the acetyl CoA and 12 more ATPs oxidizing the coenzyme. This makes fat a terrific molecule in which to store energy, as the body well knows (much to our dismay).
The only biological drawback to this, and other, forms of oxidative metabolism is its dependence on oxygen. Thus, if energy is required more rapidly than oxygen can be delivered, muscles switch to the less efficient anaerobic pathways. Interestingly, this implies that an anaerobic workout will not "burn" any fat, but will preferentially deplete the body of glucose. Of course, your body can't survive very long on just anaerobic metabolism...it just can't generate enough energy.
please follow me,friend please mark me in brainliest answer,friendlike my answer and vote, friendwhich body system contains major organs found in pairs?
Answer:
I belive it is the urinary system
Explanation:
My reasoning is because you have 2 pairs of kidneys which filter excess water, and waste called urea from blood and urine. Connecting to the kidneys are ureter tubes, which come in pairs. I'm not sure if this helps, but I tried lol.
which best describes the structure of DNA
Answer:
A
Explanation:
Which of the following statements describes processes that occur during DNA replication?
Answer:
What are the statements?
Explanation:
...
Which of the following statements about environmental changes is true?
A. Environmental changes always happen very quickly.
B. Environmental changes cause instant changes in different species.
C. Environmental changes cause genetic mutations.
D. Environmental changes can make a genetic mutation more desirable.
Answer:
environmental changes can make a genetic mutation more desirable
You are a mad scientist tasked with the evil job of designing a novel species. This species will be introduced to an ecosystem
and must cause as much damage as possible. What abilities and characteristics will you give this species to make it
successful? Be sure to explain why you choose each aspect. Explain your choice in 3-5 sentences. (4 points)
Answer: The new animal species I would release into an ecosystem would be aquatic animals. One that could affect the water supply in the ocean, causing the collapse of the ecosystem I place my animal in. My animal would be a shark-like creature of the otodontidae shark family with skin so tough, not even a harpoon could pierce, to protect itself from predators. I would give my animal the immortal ability of a genus hydra so it can never be killed. My species would also release toxic chemicals into the water destroying other living organisms in the water and poisoning any creature that drinks the water. The species would thrive without the need for water or substance like other creatures and have the ability to adapt to any situation or environment so it can survive in any ecosystem I were to place it into.
Novel species are newly designed or discovered species. The organism is altered genetically and is different in some characteristics from its original. I will create an aquatic animal.
How an imaginary novel species can be created?For this imaginary question, I will introduce aquatic species in the ecosystem. As it will affect the aquatic ecosystem of the water and will affect the oceanic life.
I will modify and alter the genes of the piranhas family as they are already very dangerous and any modification in them would create monster species. I will combine some of the genes of the other very dangerous animal with that of the piranhas.
Also, I will combine the ability of regeneration and immortality with the new novel species. I will increase their attacking capability and will add some poisonous chemicals to be released while they hunt to kill their prey.
In addition, I will make them capable to survive in terrestrial places as well so that they can even survive without water.
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In a flower, the anther is attached to filament. What advantage does the filament provide to the anther?
A. The filament elevates the anther to allow for easier transport of pollen by wind or insects.
B. The filament provides the anther with nutrients to produce pollen grains.
C. The filament protects the anther from harsh sunlight and insects.
D. The filament produces a sticky surface to allow the anther to capture pollen.
The correct answer is A. The filament elevates the anther to allow for easier transport of pollen by wind or insects.
Explanation
The filament of a flower is the sterile part of the stamen (male organ of the flower) that is located just below the anther. Its function is structural to hold the sling so that it is accessible to insects. The filament is usually cylindrical and fine. Therefore, the correct answer is A. The filament elevates the anther to allow for easier transport of pollen by wind or insects.
1. What are the two main divisions of the nervous system? How would you separate them anatomically? Functionally
Explanation:
The anatomical divisions are the central and peripheral nervous systems. The CNS is the brain and spinal cord. The PNS is everything else and includes afferent and efferent branches with further subdivisions for somatic, visceral and autonomic function.
Answer:
1-) Central nervous system and peripheral nervous system.
. What cellular structure or characteristic seems to be generally true of organism that use photosynthesis?
Answer:
Photosynthesis in plants occurs in specialized organelles called chloroplasts.chloroplast are found in plant leaves and contains the pigment chlorophyll. the green pigment absorbs light energy needed for photosynthesis to occur.
Explanation:
Hope this helped Mark BRAINLEST!!!
In a flower, the anther is attached to filament. What advantage does the filament provide to the anther?
A. The filament elevates the anther to allow for easier transport of pollen by wind or
insects.
B. The filament provides the anther with nutrients to produce pollen grains.
C. The filament protects the anther from harsh sunlight and insects.
D. The filament produces a sticky surface to allow the anther to capture pollen.
Answer:
Stamens are the male reproductive organs of flowering plants. They consist of an anther, the site of pollen development, and in most species a stalk-like filament, which transmits water and nutrients to the anther and positions it to aid pollen dispersal.May 6, 2004
Explanation:
:D
III. Complete the missing letters to form the correct answer
16. What is common among animals that swim?
17. What characteristic is common among reptiles? C
18. What is common among parrots, owis, and doves? W
19. What is common among mammals like dogs, cats, and goats? F
20. What is common among amphibians? S
skin
Answer:
16. Gills
17. Crawl
18. Wings
19. Fur
20. Smooth scale skin
Credit: aguilar10
*WILL MARK BRAINLIEST*
1. Design a creature. Describe at least 5 unique traits this organism has and a draw a picture
of a population (a whole bunch!) of these creatures (the traits are up to you! Be creative!) *JUST NEED SUGGESTIONS I COULD USE FOR A IMAGINARY CREATURE AND TRAITS AS WELL, ALONG WITH FEATURES OF THE BODY SO I COULD DRAW IT*
Answer:
eye shape, fur or no fur, how many arms and legs they have, if they have tail, or if they have whiskers or not
Explanation:
the project looks really fun, im kinda jealous
2. Discuss the location of temperate Evergreen forests
Which one is the correct option
Answer:
d
Explanation:
Glucose is converted into pyruvate (glycolysis, pyruvate gets converted into different compounds depending on the presence or absence of oxygen
Different __________ working together to perform a particular job are called __________. Fill in the blank.
Answer:
Different tissue working together to perform a particular job are called organs
Explanation:
The best determination of a community’s quality of life is _______.
a.
the per capita income
b.
the climate and weather
c.
the energy used per capita
d.
its geographic location
Please select the best answer from the choices provided
A
B
C
D
Answer:
Actually the correct answer is C. The energy used Per Capita but good try plz mark as brainiest I really need it.
Explanation:
The production of energy plants and combined heat and power plants, fewer losses in transmission, distribution, and transformation, and own usage by heat and power plants. It is expressed as the amount of electricity consumed per person (kWh), divided by the midyear population. Thus option C is correct.
What determination of a community’s quality of life?Societies are impacted by energy in both positive and harmful ways. It is advantageous for humans to have access to plentiful, affordable, secure, safe, and clean energy. However, the production, distribution, and use of energy can have a severe impact on a society's health, ecology, and economy.
Energy use is inextricably linked to population growth and quality of living. Energy consumption in 2040 may be maintained at 2010 levels by limiting overconsumption. Future energy demand is only little impacted by limiting population increase. Reducing social disparity improves quality of life while using little energy.
Therefore, the energy used per capita.
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