Answer: Oxygen Isotopes!
Explanation:
I just took the quiz and I got it correct!
Carbon and oxygen Isotopes are the two atoms present in shells of single-celled plankton that sank to the bottom of the ocean.
Composition of shellThe shells of single celled plankton is made up of calcium carbonate or from tiny grains of sand stuck together. Mostly, they are made of calcium carbonate and we know that carbonate is formed from one carbon atom and three oxygen atom.
So we can conclude that carbon and oxygen Isotopes are the two atoms present in shells of single-celled plankton that sank to the bottom of the ocean.
Learn more about plankton here: https://brainly.com/question/844604
Plasma makes up approximately what percentage of whole blood?.
Answer:
55%
Explanation:
Plasma constitutes 55% of total blood volume. Composed of 90% water, salts, lipids and hormones, it is especially rich in proteins (including its main protein albumin), immunoglobulins, clotting factors and fibrinogen.
NEED help pls help 8g more then one question
Answer:
ans 2. wind power
Explanation:
ans 3. it helps in conserving fuel
ans 4. windmils convert wind energy to electrical energy
ans 5. if we conserve minirals we can help the earth if we conserve minirals we may reduce the pollution
ans 6. setting up windmils is not easy it takes huge holes windmils only work if there is wind
Which statement best establishes a claim, making an argument that can be supported with evidence from outside media sources?
A) Some think that cigarette commercials have no real effect on children.
B) When I saw a cigarette commercial as a kid, I thought smoking looked cool.
C) Studies have been done on the effect that cigarette commercials have on children.
D) Cigarette commercials have been shown to induce more children and teenagers to start smoking.
Stages of mitosis?? 20 points!!!
Not sure what goes with what it’s like a matching game please help
Answer:
prophase- G1, S, G2, M
telophase- chromosomes condense and nucleus dissolves. centromeres and spindle fibers move into position
metaphase- lines at middle
anaphase- separated by spindle fibers and nuclear membrane regenerated
cytokinesis- splitting of cytoplasm
Why is rna incorporated into the dna molecule during dna replication?.
Answer:
The use of this RNA as a template allows telomerase to extend the 3′ end of chromosomal DNA by one repeat unit beyond its original length. The complementary strand can then be synthesized by the polymerase α-primase complex using conventional RNA priming.
Explanation:
What do the letters A, G, C, and T represent in nucleotides ?
A) phosphate groups
B) deoxyribose sugars
C) nitrogenous bases
D) ribose sugars
Answer:
C) nitrogenous bases
Explanation:
A = adenine
T = thymine (DNA only)
C = cytosine
G = guanine
:)
Answer:
C) nitrogenous bases
To insert a DNA segment into a plasmid, it is necessary to cut and stick the DNA molecules. Which enzymes are essential for this to happen?
Answer:
Restriction enzymes and DNA ligase are often used to insert genes and other pieces of DNA into plasmids during DNA cloning.
Which of the following junctions form a watertight seal between neighboring cells?
Answer:
tight junction
is the answer
List the organ and/or structure.
1. Pumps blood
2. Brings oxygen into the body
Releases carbon dioxide from the body
3. Absorbs nutrients
4.Signals the heart to contract faster or slower
5.Carries gasses and nutrients around the body
1.) The Heart
2.) The Lungs
3.) The Small Intestine
4.) The Sinus Node
5.) The Circulatory System
If any of these are wrong, I'm sorry, but these should be the right answers
Answer:
circulatory system or heart
Explanation:
What part of the body signals the hypothalamus to cause a reduction of the amounts of ADH in the blood
Pituitary gland signals the hypothalamus to cause a reduction of the amounts of ADH in the blood
What is pituitary gland?pituitary gland is an endocrine gland that has a bean shape, it produces hormones that are needed in body and it can be found below the brain.
It also regulate body functions such as hormonal regulation.
Therefore, Pituitary gland signals the hypothalamus to cause a reduction of the amounts of ADH in the blood.
Learn more on pituitary gland here,
https://brainly.com/question/1372599
what statement best describes the light-dependent reactions of photosynthesis
Answer:
light is converted into chemical energy,it breaks down nadph and atp ised in light independent reactions
Explanation:
Cellular respiration is a ______________process where the bonds in food and __________ molecules are broken, and molecules are rearranged to form new compounds that can provide _____________ to muscles
Answer:Cellular respiration is a chemical process in which the bonds of food molecules and oxygen molecules are broken and new compounds are formed that can transport energy to muscles.
Explanation:
In general, becoming more cautious in making decisions is a characteristic of which stage of adulthood? A. Adolescence B. Young adulthood C. Middle adulthood D. Late adulthood Please select the best answer from the choices provided A B C D.
Answer:
D. Late Adulthood.
Explanation:
Hope I helped!!!
How does one determine how much of a molecule is produced in a reaction?
A. The molar masses of the molecules tell how many grams of
product will form.
O B. Oxidation states are used to calculate the number of product
molecules.
C. The mass of the products is determined by adding the mass of the
reactants.
O D. The coefficients and molar masses are used to calculate amounts
of molecules.
SUBMIT
What conclusion have scientists made based on these observations? All vertebrates come from the same common ancestor. b. All vertebrates move in the same way. All vertebrates fossilize similarly. d. All vertebrates have evolved to live out of the water.
Answer:
All vertebraes fossilize similarly
Explanation:
Because they evolve different types of digestive system that helps in the digestion of different foods they eat
Which organism in the food web above occupies multiple trophic levels?
Show Your Work
Answer:
F
Explanation:
It occupies both the third and fourth trophic levels. i.e
1st trophic level: Producer(plants)
2nd trophic level: Plant eaters (B & C)
3rd trophic level: Secondary consumers (E & F)
4th trophic level: Tertiary consumers (H & F) (they both feed on E which is a secondary consumer)
Thus F is both a secondary and tertiary consumer.
hello humans ~
Which among the following is not the function of lysosomes?
A. Breaking down of food particles.
B. Protection against the pathogens.
C. Perform photosynthesis.
D. Digest worn-out cells.
Answer:
C. Perform photosynthesis.
Explanation:
Lysosomes are membrane-bound organelles that can degrade biomolecules such as proteins, carbohydrates, nucleic acids, and lipids
Hope it helps!!! brainliest pls!!!Energy transformation also occurs in come object that we use .When you light a candle,the chemical energy of the candle is changed into________ A. Heat and light enegy B. mechanical energy C.nuclear energy D.sound energy
Answer:
apple and fruit and other stuff
Explanation:
because
What is one way that biotechnology can most directly improve the marine environment?
answer choices
a. through the use of genetically engineered salmon released to enhance wild salmon populations
b. through the use of larger salmon released into the environment to consume nuisance fish
c. through the use of new technologies and methods for cleaning oil spills in beaches and the ocean
d. through the use of new technologies to make obtaining deeply-buried fossil fuels more cost effective
Answer:
hi guys its b by the way!
Explanation:
Save our coral achieve 3000 answers
Answer: true
Explanation: pollution is killing fish and other animals in the ocean
bats vs skunks. Who will win?
Answer:
Probably a bat because it has the advantage of flight something a skunk cant do. And yes although the skunk can shoot its gas all the bad has to do is avoid it right? But bats don't sense gas they sense sound since they don't have good vision. But they can sense heat and since a skunks defense is a huge pile of heat it can steer clear and beat the skunk.
Explanation:
Which organisms in the food web are primary consumers?
sparrow, owl, ladybug, grasshopper
grub, mouse, sunflower
mite, grasshopper, caterpillar, grub
owl, sparrow, mouse
Answer:
mite, grasshopper, caterpillar, grub
Explanation:
These are all examples of primary consumers because they only eat autotrophs (plants).
Which statement best describes living off the grid?
Group of answer choices
living in isolation to refuse industrialization
living carefree to have great adventures in life
living independently without utilizing public utilities
living in isolation but with high dependence on public utilities
Which is NOT a reason why many people consider living off the grid?
Group of answer choices
to have more privacy
to develop self sufficiency
to cut down on increasing utility bills
to join the fad of living sustainably
Explanation:
living in isolation to refuse industrialization
What is found in between the start and stop codons?
Answer:
more codons known as nucleotide triplets. Each mRNA codon represents a different amino acid
A shared derived trait is a unique feature common
Choose one:
A. to all members of a group that originated as a result of convergent evolution.
B. to all members of a group that originated in the group's most recent common ancestor.
C. to all members of a group that did not originate in the group's most recent ancestor.
D. to some members of a group that originated in the group's most recent ancestor.
A shared derived trait is a unique feature common to all members of a group that originated in the group's most recent common ancestor (Option B). It is evolution.
What is a shared derived trait?A shared derived trait is an evolutionary phenotypic feature present in the common ancestor of a taxonomic group.
This trait (shared derived trait) can then be used to trace the evolutionary relationships in a taxon.
A shared derived trait can be a homo-logous structure that suffered divergence across time.
Learn more about shared derived traits here:
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What are the reactants for respiration?
Question 1 options:
water and sugar
carbon dioxide and water
water and oxygen
oxygen and sugar
Answer:
B
Explanation:
Carbon dioxide and water
how does light intensity affect the rate of photosynthesis??
Answer:
Because more light allows more chemical reactions in the plant to occur there for helping increase the rate of photosynthesis.
Explanation:
5. a) The human body produces hundreds of different enzymes. Why can't one type of enzyme be used
everywhere in the body? (4 points)
b) Pepsin is an enzyme in the stomach that helps break down proteins. What problems would you expect a
person to have if his or her stomach did not have enough pepsin? (2 point)
a) A single type of enzyme could not be used in every region of the body because the body is not a single celled organism, it is a multicellular organism and each cell needs special and specific care in order to function.
A single type of enzyme could not control all the different systems of the body. Different enzymes and specialized cells have the responsibility to carry out specific functions so that the body can properly operate. One type of enzyme could not manage the excretory, digestive, reproductive, skeletal systems etc as these regions of the body require distinct attention and assistance to keep the body regulations active and to maintain proper health.
b) Problems expected of someone who lacks pepsin would be a protein deficiency. This would be present by way of weak and brittle bones and overall immuno compromised health.
Another problem expected would be stunted growth and development. As an individual is not receiving the right and recommended amount of digested protein, their bodies will lack the nutrients to properly grow as they age.
The secondary ossification center in a long bone is located in the:.
Answer:
epiphyses
Explanation:
Remember, prophase, metaphase, anaphase, and telophase represent the stages of Mitosis - not
Interphase. Which stage of mitosis takes the least amount of time?
Answer:
Why is anaphase the shortest stage? The kinetochore microtubules shorten as the chromatids are pulled toward opposite poles, while the polar microtubules subsequently elongate to assist in the separation. Anaphase typically is a rapid process that lasts only a few minutes, making it the shortest stage in mitosis.