Answer:
D
Explanation:
Answer:
D
Explanation:
Sperm Cells And Urine
Edit: Nevermind! I figured it out!!
Use the information in the table to calculate the ages of the meteorites. The half-life of potassium-40 is 1.3 billion years.
Meteorite Initial Amount(g) Final Amount(g)
1 30 7.5
2 80 5
3 100 12.5
Use your calculations to answer the questions.
How old is meteorite 1?
How old is meteorite 2?
How old is meteorite 3?
Answer:
meteorite 1- 2.6 billion
meteorite 2- 5.2 billion
meteorite 3- 3.9 billion
Answer:
meteorite 1- 2.6 billion
meteorite 2- 5.2 billion
meteorite 3- 3.9 billion
Explanation:
what is the meaning of structure?
Answer:
the word 'structure' in biology has the following meaning;
"An arrangement or organization of parts to form an organ, system, or living thing"
With more carbon in the atmosphere, what do you think will happen to the environment
Answer:
Global warming
Extra carbon dioxide in the atmosphere will increases the greenhouse effect. More thermal energy is trapped by the atmosphere, causing the planet to become warmer than it would be naturally. That increases the Earth's temperature which is also called Global Warming
Which would be the most dangerous to swallow?
A. thermoacidophiles
B. halophiles
C. Escherichia coli
D. a bacteriophage
Answer:
D. a bacteriophage
Explanation:
A. and B. need extreme environments to survive.
C. is actually beneficial to us, especially in the digestive tract.
D. is a type of virus!
what is the best definiton of genetically motified foods? HURRYYY!!! please and thank youuuu
Answer:
GMO, or genetically modified foods, are foods that are messed with genetically by science to better benefit the human race. For example, scientists might replace genes that give corn a lower harvest, with a different gene in corn that makes a higher amount of harvest.
Explanation:
You could also look it up. Just search "GMO".
Which layer best represents the mantle?
A. 1
B. 2
C.3
D.4
2 Points
Which best describes the blood flowing in a vein?
O A. It moves toward the heart.
B. It contains no red blood cells.
O C. It is oxygen rich.
D. It contains no white blood cells.
explain the difference between the principles of overload and progression
Where is dna found
1. Molecules
2. Elements
3.cells
Answer:
3
Explanation:
Answer:
the dna is found in the cell nucleus
Explanation:
Which body system is an important place for mineral storage, gives us support and structure, and provides a place for muscle attachment? A) digestive B) muscular Eliminate C) nervous D) skeletal
Answer:
Skeletal
Explanation:
Your bones hold everything together, and help support your body. Also your muscles are attached to your bones. If i'm wrong i'm sorry
Which organisms would have the most similar traits?
Answer:
Organisms in the same family will have the most similar traits.
Organisms mostly will be the same when they are in the same family, and if there are two organisms in different families that look alike, it will be a coincidence.
Answer: organisms in the same order
Yeet Skeet
What happens first at each origin of replication?
A: enzymes kill viruses
B: enzymes remove bases
C: enzymes unwind DNA
D: enzymes eat nucleotides
Answer:
The answer is C.
Explanation:
At first, an enzymes called Helicase unwind the double helix in a DNA .
Complexity is a measure of how difficult it is to understand something. What is an example of complexity in the natural world?
Answer:
Answer:
Multicellular organism is the example of complexity of the natural world.
Explanation:
Multicellular organism such as human which is made of billions of cell. Each cell perform a specific function. The function of one organ is different from the other organ. For example, brain of human is made of millions of neurons which takes instructions from brain to the organs and bring messages from organs to the nervous system in the form of electrical impulses. In short every system in our body is full of complexity.
A gene mutation is when chemical changes occur in DNA of individual cells. True or False
Answer:True
Explanation:
Answer:
true
Explanation:
What is the purpose of the motor neuron?
to carry information from sense organs to the brain or spinal cord
to carry information from the brain or spinal cord to sense organs
to carry information from the brain or spinal cord to muscles and glands
to carry information from muscles and glands to the brain or spinal cord
Answer:
ans this question is no 3
Explanation:
Because it sends electrical output signals to the muscles affecting the muscles ability to functions.
Which type of organism developed first?
A. Chordates
B. Vertebrates
C. Deuterostomes
D. Sponges
Answer: D sponges, i just got this wrong lol
Explanation:
Why sponges develop first?
Sponges belong to the oldest and most simple animals that had evolved, and their discovery in such old rocks meant that they may have been the first animals.
How did sponges evolve?
Among extant animals, only sponges could have evolved directly from protozoa without changing feeding mode.
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B and T cells of the immune system have unique B and T cell surface receptors (respectively) as shown above. What is the function of the variable and the constant regions of the B and T cell receptors of the vertebrate immune system? A) There will be an increase in inflammatory response during an innate immune response. B) There will be a decrease in allergic responses on the part of the individual to allergens in the environment. C) There will be an increase in variety of the shape of the B and T cell receptors, allowing them to recognize and destroy more pathogens. D) There will be a decrease in pathogens that can enter the body, resulting in a decrease of antibodies present and circulating in the blood.
Answer:C. There will be an increase in variety of the shape of the B and T cell receptors allowing them to recognize and destroy more pathogens
Explanation: usa test prep
Answer:C
Explanation: Because I did the USA test prep
Marijuana is a(n)
a. depressant
b. stimulant
c. hallucinogen
d. opiate
Answer:
Marijuana is a stimulant.
Answer: Marijuana is a stimulant.
Bacteria are usually classified by
Answer: Bacteria are classified into 5 groups according to their basic shapes: spherical (cocci), rod (bacilli), spiral (spirilla), comma (vibrios) or corkscrew (spirochaetes). They can exist as single cells, in pairs, chains or clusters. Artwork of bacterial cells becoming resistant to antibiotics.
Explanation:
What is a “shared derived character”?
Answer:
A shared character is one that two lineages have in common, and a derived character is one that evolved in the lineage leading up to a clade and that sets members of that clade apart from other individuals.
Answer:
A shared character is one that two lineages have in common, and a derived character is one that evolved in the lineage leading up to a clade and that sets members of that clade apart from other individuals. Shared derived characters can be used to group organisms into clades. For example, amphibians, turtles, lizards, snakes, crocodiles, birds and mammals all have, or historically had, four limbs. If you look at a modern snake you might not see obvious limbs, but fossils show that ancient snakes did have limbs, and some modern snakes actually do retain rudimentary limbs. Four limbs is a shared derived character inherited from a common ancestor that helps set apart this particular clade of vertebrates.
1. In a sample of double-stranded DNA, 10% percent of the nitrogenous
bases are guanine (G). What percentage of the nitrogenous bases in the
sample are cytosine (C)?
10%
80%
40%
90%
Answer:
10
Explanation:
Match the time period with the correct layer of fossils (mya = millions of years ago). ITEM BANK: Move to Bottom 175 mya250 mya400 mya 175 mya 0
Answer:
0 mya, 175mya, 250mya, 400mya
Explanation:
The substance which highest million year ago should be more in-depth in the soil hence 400mpa should occupy the highest depth below the ground.
How is the epithelium suited for the substances ?
Answer:
Epithelial tissue is composed of cells laid together in sheets with the cells tightly connected to one another. Epithelial layers are avascular, but innervated.
Epithelial cells have two surfaces that differ in both structure and function.
The epithelial cells are nourished by substances diffusing from blood vessels in the underlying connective tissue. One side of the epithelial cell is oriented towards the surface of the tissue, body cavity, or external environment and the other surface is joined to a basement membrane. The basement layer is non-cellular in nature and helps to cement the epithelial tissue to the underlying structures.
Body systems in the human body work together to support the essential life functions of the body. The urinary system interacts with the cardiovascular system in several significant ways. Which of these is NOT an accurate interaction between the two body systems?
A) The kidneys secrete an enzyme called rennin that helps control blood pressure.
Eliminate
B) The kidneys filter metabolic waste products and toxins from blood for excretion from the body in urine.
C) The kidneys excrete a great amount of sodium and water helping control sodium concentration and blood pressure.
D) The kidneys secrete erythropoietin, a hormone which stimulates the production of white blood cells in the body.
Answer:
a
Explanation:
the kidney secretes an enzyme called rennin that helps to control blood pressure is not true the kidney does not secret rennin
A(n)
is an organism that breaks down dead organisms and
Answer:
Decomposer
Explanation: I just did it
An organism that breaks down dead organisms and decomposes is called a decomposer, and the decomposer takes part in the decomposition process by breaking down the dead and mixing with soil.
What is the decomposer's importance?Decomposers are of great importance as they can maintain the ecosystem by breaking down dead organic matter and recycling nutrients back into it, later, these nutrients are passed from the environment to plants, then to animals, and then back to the environment. Decomposers include bacteria and fungi that consume dead plant and animal material, breaking down complex molecules into simpler compounds that can be used by plants to grow.
Hence, an organism that breaks down dead organisms and decomposes is called a decomposer, and the decomposer takes part in the decomposition process by breaking down the dead and mixing with soil.
Learn more about the decomposer here.
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The changing of the rivers created more ____________ for animals
aRegeneration
bVegetation
c Erosion
d Habitats
Answer:
D) Habitats for animals.
Explanation:
It depends what the question means when it says 'the changing of the rivers'. I took it as the rivers are changing size and becoming more spread out. In that case, I chose habitats.
The more water there is, the more habitat there is for sea life.
All in all, the correct answer is D).
Identify the type of energy described in each sentence.
gravitational energy
mechanical energy
chemical energy
electrical energy
thermal energy
nuclear energy
radiant energy
The body stores lipids ingested as fat and uses this energy when needed.
A person’s hat falls off and lands on the ground.
A wave of water pushes a surfer to shore.
A burner on a stove heats up a tea kettle.
A power plant splits atoms to generate power for a city.
A nerve sends an impulse to another nerve.
A plant absorbs the Sun’s rays to start the process of photosynthesis.
Answer:
chemical energy: The body stores lipids ingested as fat and uses this energy when needed.
gravitational energy: A person’s hat falls off and lands on the ground.
mechanical energy: A wave of water pushes a surfer to shore.
thermal energy: A burner on a stove heats up a tea kettle.
nuclear energy: A power plant splits atoms to generate power for a city.
electrical energy: A nerve sends an impulse to another nerve.
radiant energy: A plant absorbs the Sun’s rays to start the process of photosynthesis.
Explanation:
Write two sentences on global warming
Answer:
Global warming is a major crisis in the world. It is when companies or industries dump or pollute the air or the nature that is around us.
Explanation:
Answer:
I'm glad you asked!
Explanation:
Global warming is temperature of earths surface and more, like atmosphere.Global warming is Mostly about temperature and crisis.People are hurting animals in the ocean and throwing garbage.
Hope that was helpful.Thank you!!!
Which statements about mutations are true? Check all that apply.
A. Mutations cannot be passed from generation to generation.
B. Mutations are rare.
C. Mutations are always harmful.
D. Germline mutations occur in body cells.
E. Most forms of cancer are caused by somatic mutations.
Answer:
most forms of cancer are caused by somatic mutations
Explanation:
Answer:
B & E
Explanation:
Just did it and got it right
what is the role of a cytoplasm
Answer:
Cytoplasm is responsible for giving a cell its shape. It helps to fill out the cell and keeps organelles in their place
Explanation:
Cytoplasm contains molecules such as enzymes which are responsible for breaking down waste and also aid in metabolic activity.
