Answer:
4
Explanation:
Answer:
Uranium 238 is only found in igneous or volcanic rocks. So no fossils can be dated directly using U 238. Because of the huge differences in the half lives of Carbon 14 and Uranium238 they cannot be used together. Carbon 14 can only be used to date fossils of a very recent age.
Explanation:
The large object in the picture above is a single bacteria cell. The many small structures attached to it are viruses called
bacteriophages which are attaching to the receptor sites on the bacteria cell. Which of the following is one important
difference between a virus and a bacteria cell?
Answer Options:
a. a virus is much larger in size than a bacterial cell
b. a virus always causes more severe disease than a bacterial cell
c. a virus can never reproduce on its own, but a bacterial cell can
d. a virus does not contain genetic material, but a bacterial cell does
Answer:
c. a virus can never reproduce on its own, but a bacterial cell can
Explanation:
A virus is not cellular, and is significantly smaller than bacterial cells. Because they aren't cellular, to reproduce, viruses have to infect other cells. Inside the cell, they hijack the cell's machinery to allow their genome to be replicated and new viral particles to form. This is how viruses reproduce. Bacteria reproduce by asexual reproduction.
What is a single-celled organism called?
O A. Eukaryote
O B. Multicellular
O C. Unicellular
O D. Tissue
Answer:
What is a single-celled organism called?
ans:
C.Unicellular
B. nucleic acids
C. proteins
D. all of these
4. Building macromolecules is called condensation (dehydration syn
macromolecules is called
A. dehydration synthesis
B. hydrolysis
C. condensation
D. denaturing
5. Olympic weight lifters train in ways to grow specific muscle groups
of weight they can lift in competitions. #Gains. Which major macro
punos?
Answer:
a
Explanation:
g Define nitrogen balance and describe how it is used to assess protein requirements in humans. Give examples of positive, zero (equilibrium), and negative nitrogen balance in humans.
Answer:
The nitrogen balance refers to the ingested nitrogen, one gram of nitrogen is equivalent to 6.25 g approx of protein.
Nitrogen in our body must be in balance, for that a large part is eliminated in urine, in the form of urea, and the rest through sweating, breathing and in epithelial expressions.
Explanation:
The nitrogen balance if it has a positive value is because we lose less than what we ingest in the day, if its value is zero, it is because the same thing that we ingest is we lose it in the day.
Instead, the problem is usually when the value is negative, here we are talking about the organism releasing more than we ingest, therefore some systemic failure will be happening.
help is appreciated.. thank you
Chapter 3 Biology test
Why would your force of gravity increase if you went to a larger planet?
Answer:
Objects with more mass have more gravity.
Use the drop-down menus to select the names of the labeled structures.
A:
B:
C:
D:
Answer:
What he said ^
Explanation:
Answer:
A:
✔ pistil
B:
✔ sepal
C:
✔ petal
D:
✔ stamen
Explanation:
100%
what happens during telaphase
Answer:
DNA cytoplasm
Explanation:
Basically the nuclear membrane goes around the chromosomes and separate the nuclear DNA from the cytoplasm.
Plz mark brainliest
Explain in the relationship between oxygen and hydrogen and why it is important to the world we live in?
58. What do you think would happen if a cell were treated internally with reagents that blocked the formation of clathrin coated vesicles
Answer:
Molecules or proteins will not be transported within the cells from organelles to organelles
Explanation:
If a cell were treated internally with reagents that blocked the formation of clathrin coated vesicles, proteins will not be transported within the cell from one organelles to another because clathrin is a protein that lead to the formation of coated vessicles and these coated vessicles play a major role in vessicular transport by allowing the transport of proteins or molecules with the cells from organelles to organelles like organelles in the post-Golgi network connecting the trans-Golgi network endosomes and also cell membrane and lysosomes.
1 point
2. A student performed an experiment to see how the pH of ocean water
affected the shell of an oyster. The student collected oyster shells and
soaked them in different solutions of ocean water. One batch was placed in
normal ocean water (pH 8.6) and one batch in ocean water with a pH of
8.0. The independent variable is... "
The normal ocean water with a pH of 8.6
The ocean water with a pH of 8.0
The amount of time the shell was in the solution
The type of shell (oyster)
3. A student performed an experiment to see how the pH of ocean water
I point
Answer:
the ocean water with a pH of 8.0
Question 11
Which often live on decaying leaves in a forest?
C. sarcodines
B. diatoms
D. slime molds
A dinoflagellat
An atom that has four protons, four neutrons, and five electrons is
an isotope
a negative ion
a neutral atom
a positive ion
Answer:
b
Explanation:
negative ion
how many amino acid hormones what are
Answer:
Amino Acid Derivatives
There are two groups of hormones derived from the amino acid tyrosine: Thyroid hormones are basically a "double" tyrosine with the critical incorporation of 3 or 4 iodine atoms. Catecholamines include epinephrine and norepinephrine, which are used as both hormones and neurotransmitter
A group of scientists predicts that Earth’s oceans will be able to take up more carbon dioxide as atmospheric carbon dioxide levels increase and the atmosphere warms. Which of these statements about the solubility of gases in ocean water would lead you to question this prediction?
a Solubility decreases with an increase in salinity.
b Solubility decreases with an increase in salinity.
c Solubility decreases with an increase in temperature.
d Solubility decreases with an increase in temperature.
Answer:
b
Explanation:
The solubility of gases in the ocean water should result into decrease in solubility that increases salinity.
What is the solubility of gases?The solubility of a gas should be in the liquid and that should be directly proportional with respect to the partial pressure that should be presented above the surface of the liquid.
Here the henry law should be applied that represent the partial pressure that above the solution also it should be proportional to the fraction of the mole of the gas.
Therefore, the option b is correct.
Learn more about gases here: https://brainly.com/question/19395080
the purpose of digestion is to create memory pathways in the brain
true or false
Answer:
id go with true
Explanation:
Pls help me
Juan and billy hooked a science book on the end of this spring scale. What is the force of gravity pulling down on the books?
A) 23 grams
B) 2300 grams
C) 23 Newton’s
D) you cannot determine the force of gravity
Answer:
D) you cannot determine the force of gravity
Explanation:
Answer:
23 Newtons
Explanation:
Well, the type of measurement that is being used is called Newton. So that eliminates A and B. You can determine the force of gravity, that's pretty much common sense, Therefor the Answer is C.
DNA is bound into this shape for storage and replication before mitosis.
chromosomes
Triangles
Circles
Ovals
Answer:
chromosomes
Explanation:
Deoxyribonucleic acid, also known as, DNA, is the genetic material in living cells that stores genetic information. However, DNA is supercoiled around certain proteins called HISTONES into an X-shaped threadlike structure called CHROMOSOMES.
Chromosomes are the forms in which DNA is stored and undergoes replication in the nucleus (eukaryotic cells) or nucleoid (prokaryotic cells).
Can you guys help me with this?
Answer:
The law of segregation states that genes have alternative forms, or alleles. In a diploid organism, the two alleles of a gene separate during meiosis and gamete formation; each sperm or egg carries only one allele of each pair. This law explains the 3:1 ratio of the F2 phenotype observed when monohybrids self-pollinate. Each organism inherits one allele for each gene from the parent. In heterozygous individuals, the two alleles are different, and expression of the dominant allele masks the phenotypic effect of the recessive allele. In hom0zygous individuals, the two alleles are identical.
The law of independent assortment states that the pair of alleles for a given gene segregates into gametes independently of the pair of alleles for any other gene. This law explains the 9:3:3:1 ratio of the F2 phenotypes in a cross between dihybrids.
Explanation:
The law of segregation explains that, during gamete formation, each gamete receives just one copy of the gene (allele) which is random. Therefore, if we have two heterozygotes (Aa), the possible genotypes are AA, aa, Aa and Aa. Therefore, the ratio of the dominant phenotype to the recessive is 3:1.
The law of independent assortment explains that the alleles of different genes are inherited independently of one another. That explains the 9:3:3:1 phenotype ratio when crossing two individuals heterozygous at two different genes
What do all living things need?
a. energy, water, sunshine, protection
b. food, water, air, a place to live
c. oxygen, outer covering, parents, vitamins
d. water, parents, a place to live, air
Answer:
A
Explanation:
What cellular process is occurring in the organelle labeled B
Answer:
A hope this helps:)
Explanation:
Why is there so little life at the bottom of the ocean?
Answer:
Lack of sunlight means no algae or plants to support the food chain, so food is scarce. Deep-sea animals must survive on the decaying scraps of dead organisms from the upper layers of the ocean, which sink to the bottom.
The chemical bond between amino acids is called a bond.
Answer:
Amino Acids Are Linked by Peptide Bonds to Form Polypeptide Chains. Proteins are linear polymers formed by linking the α-carboxyl group of one amino acid to the α-amino group of another amino acid with a peptide bond (also called an amide bond).
The chemical bond between amino acids is called a peptide bonds.
A peptide bond is a chemical bond formed between two molecules when the carboxyl group of one molecule reacts with the amino group of the other molecule, releasing a molecule of water (H2O). This is a dehydration synthesis reaction (also known as a condensation reaction) and usually occurs between amino acids.
Within a protein, multiple amino acids are linked together by peptide bonds, thereby forming a long chain. Peptide bonds are formed by a biochemical reaction that extracts a water molecule as it joins the amino group of one amino acid to the carboxyl group of neighboring amino acids.
list the characteristics, such as precipitation, temperature, and season in your area
Answer: you suppose to use your own living state but..
sample answer
(Answers may vary.)
I live in Kansas City, Kansas. Kansas has the following characteristics:
Annual high temperature: 17.9°C
Annual low temperature: 5.8°C
Average temperature: 11.8°C
Average annual precipitation (rainfall): 867.2 mm
Kansas City has all four regular seasons. In spring, there is frequent fluctuation in the weather. The summer season has hot days and mild, warm nights. During the fall, the city has mild weather with sunny days and cool nights. Winters arrive by late October, with the first freeze. However, winters here are not severely cold. We rarely have snowfalls of 10 inches or more at any one time.
Explanation: edmentum/plato
A test is performed on a blood sample, which determines it is Type A+. What kind of result is this?
A. Qualitative
B. Quantitative
C. Neither
Answer:
quantitative
Explanation:
it is quantitative
match each part of a virus with the best description of it.
Answer:
Envelope protein - proteins that stick out from the virus body
Envelope - protein shell around the virus
DNA/RNA - instructions to make more viruses
Capsid - container holding the DNA/RNA
Capsomeres - building blocks of the capsomeres
Explanation:
The envelope is the outermost layer of the virus. Envelope proteins are attached to the envelope and stick out. These are the proteins that bind to cell receptors to allow viruses to enter cells.
The capsid is made up of capsomeres, and it surrounds the genome of the virus. The genome is either made up of DNA or RNA, and contains instructions to make more viral particles.
PLEASE HELP IN ONE MINUTE WITH WHOLE TEST WILL MARK BRAINLEST
Answer:
i think its d
Explanation:
ATP molecule have? How many phosphate groups does an O 1 O 2 O 3 O 4
3 phosphate groups
I took the unit test, this is the correct answer.
Whatstatement accurately names and describes the function of the organelle labeled B?
The correct answer is Option A .
Organelle B = Mitochondrion.
A mitochondrion converts food into energy for cellular functions.
Explain functions of mitochondrion?According to the diagram, the organelle labelled A absorbs solar light energy and transfers it to the mitochondria ( organelle labelled B )The energy that the mitochondrion receives is put to use by the organelle to break down the food that has been consumed and produce the energy (ATP) that powers every other cell.Thus, we can deduce that the statement "A mitochondrion produces energy from food to power cellular processes" accurately describes the function of organelle B.Oxidative phosphorylation, which produces ATP using the energy released during the oxidation of the food we eat, is the traditional function of mitochondria. For the majority of biochemical and physiological processes, including growth, movement, and homeostasis, ATP is used as the main energy source in turn.To learn more about mitochondrion refer to :
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