Answer:
0.023%
Explanation:
The Population growth rate is a change in population with time taken into consideration. It can be expressed with the formula
[tex]N/t[/tex] where N is the total change in the population size, and t is time.
When immigration and emigration are factored in, we now have the formula;
[tex](CBR +I) - (CDR + I)/1000[/tex]
[tex]= (36 + 15) - (20 + 8) = 51 - 28= 23\\\\expressing as a percentage of the population gives us,\\\\23/1000=0.023%\\\\[/tex]
Which of the following is a human-related release of greenhouse gases?
O A. Wild animal respiration
OB. Volcanic eruptions
O C. Intensive agriculture
O D. Solar cycles
It’s A
Answer:
C
Explanation:
I'm pretty sure it's actually C and not A. It's asking for human-related release from greenhouse gases. Humans don't cause volcanic eruptions and aren't in control of wildlife's respirations. The solar cycles has to do with the magnetic flux that rises to the surface of the sun and lasts 11 years. Intensive agriculture increases pollution which harms the environment.
what kingdom does fish belongs to?
Answer:
animalia
Explanation:
During which period did humans first appear on Earth? Quaternary Neogene Paleogene Cenozoic
Answer:
the answer is actually Quaternary, please double check your answer before giving them out to people
we dont want them to get a bad grade
Explanation:
i took the test
E2020
What kingdom contains organisms that are multicellular, heterotrophic, eukaryotic, and lack cell
walls?
Answer:
Kingdom Animalia contains organisms that are multicellular , heterotrophic, eukaryotic and lacks the cell wall.
Explanation:
The reason for above answer is:
kingdom animalia are multicellular organism aa they are composed of various cells.they don't prepare food by themselves which makes them heterotrophic in nature.they have enclosed nucleus in cell which makes them eukaryotic in nature.their cell lacks the cell wall.Hope it helps...
Answer: Kingdom Animalia
Explanation:
PLEASE HELP ME ASAP BECAUSE IT IS DIFFICULT TO UNDERSTAND. Explain it for me.
Answer:
C.
Explanation:
For mRNA strands, there are four letters used in their code. A (adenine), U (Uracil), G (guanine), and C (cytosine.)
For RNA, it is the same, but the Uracil is replaced with Thymine (T).
A always pairs with U.
G always pairs with C.
YOUR QUESTION:
The scientist's strand code is has to convert the Thymine to Uracil since it is RNA instead of mRNA.
Hopefully this somewhat helped :)
How can you guarantee a high expression of your protein in any expression vector?
Answer:
protein expression refers to the way in which protein are synthesized, modified and regulated in living organisms.
Explanation:
In the protein research,the term can apply either the object of study or the laboratory techniques required to manufacture proteins.
You go to the circus and see the tiger show. When the trainer cracks his whip, the tiger jumps through the hoop. This is an example of
a. operant conditioning with a positive reenforcement
b. operant conditioning with negative reenforcement
c. operant conditioning with punishment
d. none of the above
Answer:
C
Explanation:
the trainer has already threatened and hit the tiger before.
thus, when he cracks the whip, the tiger is afraid and will "volunteeringly" jump through the hoop.
the defination of operant conditioning with punishment is any change in a human or animal's surroundings which, occurring after a given behavior or response, reduces the likelihood of that behavior occurring again in the future.
People can breed cats for specific traits such as coat color through the process of _____. a. natural selection b. descent with modification c. selection with modification d. artificial selection
Answer:
D. Artificial Selection.
Explanation:
Normal people can't breed cats by modifying their DNA, so options b and c are eliminated. Breeding cats for specific traits is not natural, so it is not choice a, either. Instead, selective breeding is d. artificial selection.
Hope this helps!
Answer:
D. Artificial Selection.
g 1 molecule of glucose is catabolized to pyruvate and then acetyl-coA. All the acetyl-coA enters the citric acid cycle. How many molecules of NADH are produced from the citric acid cycle only (do not include NADH from glycolysis or the pyruvate dehydrogenase complex in your calculation.) You must answer as a number i.e if you think the answer is 12, you must enter 12, not twelve.
Answer:
6NADH
Explanation:
In the kreb's cycle NAD is reduced during the reduction of 6-carbon citrate to 5 carbon Alpha-Ketoglularate.
The second is produced during the conversion of 5carbon alpha ketoglutarate to succinate. Lastly in the conversion of fumirate to oxoloacetate;another NADH is formed.
However, since two pyruvate enters the Kreb's cycle therefore 6NADH(three NADH per cycle of Citric) are produced for each molecule of glucose that is broken down from glycolysis.
Remember,each glucose molecule goes through 2 cycles of Kreb.
Futhermore co-enzyme FADH2 are also produced,with 2 molecules per 1 glucose.
These Co-ezymes transfer hydrogen ions,into the matrix of the mitochondria,where is is splits to protons and electrons.
The electrons formed the ETC,which produce PMF for transporting protons into the intramembranes for electrochemical gradients needed to generate energy for ATP s synthesis,by ATP synthase.
.
Essential amino acids are amino acids that must be obtained through the diet. Non‑essential amino acids can be made biosynthetically. Classify the amino acids into either essential or non‑essential amino acids.
Answer:
Explanation:
There are at present 20 major amino acids produced in the body. These amino acids are important biological components in the body. They are the building blocks of proteins. Also essential in the synthesis of nucleotides including the DNA and RNA. There are different ways of classified these amino acids:
Essential and non essential. The essential amino acids cannot be synthesized from scratch in the body but has to be obtained from our diet, while non essential is produced by the body
Acidic, basic, neutral, polar, non polar etc.
The essential amino acids are arginine, histidine, isoleucine, leucine, lysine, methionine, phenylalanine, threonine, tryptophan, and valine.
While the non essential amino acids are: alanine, asparagine, aspartic acid, cysteine, glutamic acid, glutamine, glycine, proline, serine, and tyrosine.
In pea plants, purple flower color, C, is dominant to white flower color, c. The table shows the frequencies of the dominant and recessive alleles in three generations of peas in a garden. Allele Frequency for Flower Color in Peas Generation p q 1 0.60 0.40 2 0.64 0.36 3 0.75 0.25 4 0.80 0.20 Which generation showed the greatest frequency of having one of each allele? generation 1 generation 2 generation 3 generation 4
Answer:
generation 1
Explanation:
The allele frequency is a term that represents the frequency that an allele can appear in a given population. This term can help to develop conclusions about the genetic diversity that a region presents in relation to the individuals that compose it.
In relation to the question above, generation 1 had the highest frequency of having one of each allele. This is because this generation presents the maximum frequency of the dominant and recessive alleles in a coherent way, 0.60 and 0.40. However, the other generations showed a steady and progressive decrease in the recessive allele.
Answer:
Gen 1 or A
Explanation:
Please give me brainliest I need l need to level up.
Prokaryotes, like most living organisms, need movement to locate food and to survive.
Answer:
Explanation:
Prokaryotes, like most living organisms, need movement to locate food and to survive. If a prokaryote needed to move to a new food source, which structure would it use for locomotion?
Help can you pls number 2 to 4
Answer:
Hey there!
1. Load
2. Broom
3. Flagpole
Hope this helps :)
The general function of an enzyme in the body is to ________. The general function of an enzyme in the body is to ________. eliminate waste products from the blood act as a reactant in carbohydrate storage catalyze chemical reactions maintain homeostasis maintain a neutral pH
Answer:
catalyze chemical reactions
Explanation:
An enzyme is a proteinous substance that acts as biological catalysts and increases the rate of biochemical reactions in the body. Enzymes are specific in nature which is as a result of the structure/shape of its building block (amino acid).
Enzymes speedens the rate of a chemical reaction in living systems, which would normally not occur or occur at a much slower rate, without the presence of an enzyme. Enzymes acts on the reactants called Substrates by binding to them to form products but they are not used up in the reaction. Hence, enzymes are not reactants.
Explain why mutations that replace S/T/N residues with A/L/W residues in the N-terminal region of transmembrane proteins that function as cell surface receptors could significantly disrupt that utility of these proteins as receptors.
Answer:
Serine (S), Threonine (T) and Asparagine (N) are primary binding sites of carbohydrates, and thereby they are required to form glycoproteins (i.e., glycosylation products)
Explanation:
A transmembrane protein (TP) is a particular type of protein that crosses the cell membrane in order to enable the movement of ions and molecules. Transmembrane proteins are divided into alpha-helical and beta-barrel proteins. The N-terminal region of transmembrane glycoproteins can be required for N-linked glycosylation, which is an enzymatic mechanism capable of attaching oligosaccharides to proteins in order to form glycoproteins (glycans). N-linked glycosylation is a posttranslational protein modification that has distinct functions depending on the cell type and the protein region involved in such modification. For example, in the surface of immune cells, the N-linked glycans are capable of dictating the migration pattern of these cells.
Phytoplankton, shown on the left in the image below, are microscopic organisms that can be found in freshwater and salt water environments. They perform photosynthesis to get energy and act as an important food source for larger organisms, such as the whale that is shown on the right. Phytoplankton A large whale. Which characteristic describes the whale but not its food source, the phytoplankton? The whale is heterotrophic. The whale has cell walls. The whale is unicellular. The whale is a prokaryote.
Answer:
The whale is heterotrophic.
Explanation:
Energy is needed by organisms to perform their life functions. Organisms, in nature, feed on one another for energy source. Some organisms are, however, capable of synthesizing their own food or energy source via a process called photosynthesis. This is the case of the phytoplankton in the question. These organisms are, therefore, called AUTOTROPHIC ORGANISMS or PRODUCERS.
On the other hand, some organisms are incapable of this self-production of energy source. Hence, they rely on other organisms for it. These category of organisms are called HETEROTROPHIC organisms, which is the category the large whale fall into due to its dependence on phytoplankton for energy source.
How does a catalyst influence a chemical reaction?
Answer: A catalyst speeds up a chemical reaction, without being consumed by the reaction. It increases the reaction rate by lowering the activation energy for a reaction. ... Remember that with a catalyst, the average kinetic energy of the molecules remains the same but the required energy decreases
Explanation:
In 1998, paleoanthropologist Rick Potts published an article in The Yearbook of Physical Anthropology, a peer-reviewed journal. The article was titled “Environmental Hypotheses of Hominin Evolution.” In his paper, Potts claimed that great variations in environmental conditions over time were responsible for the adaptability of humans and the success of our species. Which would most likely be found in his paper? a review of modern human anatomical structure evidence of changing environmental conditions, with references the reasons competing hypotheses are wrong his opinion of what will happen to the survival of the human race
Answer:
Dr. Potts used environmental data to support environmental hypotheses capable of explaining human evolution
Explanation:
In this paper, the author stated that environmental factors have been fundamental for the emergence of adaptive traits during human evolution. In consequence, Dr. Potts explained how particular environmental factors and habitats might have shaped human evolution. For example, it has been hypothesized that dry savanna vegetation might have been a key environmental factor associated to the emergence of human traits including, among others, bipedality, making of tools from stones, the development of human brains, etc. In order to prove this hypothesis, the author recorded environmental data from different regions in Africa (Olorgesailie, Olduvai, Turkana, Zhoukoudian, etc), where it is believed that first hominids evolved about 6-8 million years ago.
ITS NOT B AND ITS NOT C
SOOO EITHER D OR A
Explanation
) Recall what you know about crossing over, independent assortment, and random joining of sex cells during sexual reproduction.
Answer:
Crossing over is the process of interchange of genetic information among non-sister chromatids of homologous chromosome pairs during meiosis (specifically during synapsis in prophase I). During this process, the synaptonemal complex enables the interchange of chromosome fragments between non-sister chromatids through crossing over. Moreover, in sexual reproduction, the zygote diploid cell can be generated by the random joining of fully differentiated haploid gametic cells (male and female gametes). The combination of random joining with the phenomenon of crossing over is known to considerably increase the genetic variation of the resulting offspring. After zygote formation, the successive cycles of cell divisions during embryonic development will develop an organism that during its adult stage will reproduce via sexual reproduction.
Select the correct answer.
Which statement best compares the role of meiosis in a unicellular and a multicellular organisms?
OA.
Meiosis is the mechanism used for producing somatic cells in unicellular as well as multicellular
OB.
Meiosis is the mechanism used for producing gametes in unicellular organisms and somatic cells
O c.
Meiosis is the mechanism used for producing gametes in multicellular organisms whereas it doe
unicellular organisms.
Reset
Next
Answer:
Meiosis is the mechanism used for producing gametes in multicellular organisms whereas it does
unicellular organisms.
Explanation:
Meiosis is a kind of cell division used mainly by sexually-reproducing organisms, whether unicellular or multicellular, to produce gametes i.e. meiosis only occurs during gamete formation.
In sexual reproduction, gametes must fuse in a process called fertilization. This gametes, however, must each possess half of the chromosome number of the individual organism. Meiosis is the process that ensures that the chromosome number of the gametes is reduced by half i.e. diploid (2n) to haploid (n).
Therefore, meiosis is the process of gamete formation in sexually-reproducing unicellular or multicellular organisms.
Which type of cell can duplicate indefinitely?
Answer:
Embryonic stem cells
Explanation:
Answer:b
Explanation:
Larry recalls his first memory of riding a red tricycle at the age of 4. Larry’s memory is: True False
Answer:
True
Explanation:
False memory refers to remembering an event differently from the way it happened or remembering events that never happened at all.
Larry's memory is a true memory because it doesn't sound like something that could be made up. Also, most children ride tricycles around the age of 4 or even younger.
Hope that helps.
g Glycogen Phosphorylase is phosphorylated by ____________________. Glycogen Synthase Kinase Casein Kinase Protein Kinase G Phosphorylase Kinase Protein Kinase A
Answer:
Phosphorylase kinase
Explanation:
Phosphorylase kinase is a type of regulatory protein kinase which helps in the process of glycogen breakdown.
It sends signals and the process of phosphorylating occurs which then helps in the activation of glycogen phosphorylase and subsequent breakdown of glycogen in the body. This makes phosphorylase kinase the right option.
Two students performed the same experiment, testing how far iodine will diffuse through starchy tissue, such as potatoes. They cut 5 potato squares each, all of equal sizes, and placed them into small cups with iodine solution for 15 minutes. Then they measured how far from the edge of the potato the iodine diffused into the potatoes, in millimeters.
Distance Diffused (mm)
Trial 1 Trial 2 Trial 3 Trial 4 Trial 5
Student 1 3.25 3.17 3.26 3.64 3.44
Student 2 3.14 3.43 3.22 3.37 3.28
1. What is the range of student 1's results?
a. 3.35
b. 0 29
c. 0 47
d. 3 29
2. Why do scientists conduct experiments?
a. To test their results.
b. To test a hypothesis.
c. To test a conclusion.
d. To explain an observation.
Answer:
Option c
Option b
Explanation:
To calculate range: range is highest data value - lowest data value
where the highest value in student 1's result is 3.64 and the lowest value is 3.17
Thus, the range of student 1's result is
3.64 - 3.17 = 0.47
Scientists conduct experiments to test a hypothesis. For a scientific research, the researcher first form hypotheses on a particular question she wants answered or maybe she is curious about something. An experiment is then carried out to further test the validity of the hypothesis so as to be able to make a conclusion.
Answer:
A
Explanation:
bc
Please help!!!!! science, please explain in sentence cause yes i don’t know where to find these answers !
Answer:
1. DNA replication.
2. rRNA - is called the ribosomal RNA which serve as structural components of protein-making structures known as ribosomes.
mRNA - is called the messenger RNA which serve as temporary copies of the information found in DNA.
tRNA - is called transfer RNA, that ferry amino acids to the ribosome to be assembled.
3. Protein synthesis.
Explanation:
Hope it helps.
Which source would be the least reliable? a nonfiction book written by a scientist a peer-reviewed scientific journal an encyclopedia an advertisement
The cladistic approach to primate classification is Group of answer choices based on levels of anatomical complexity, without consideration of ancestor-descendent relationships. based on direct observation of phenotypes only. based on the use of anatomical and genetic evidence to establish ancestral relationships. also called the gradistic method of classification.
Answer :
based on the use of anatomical and genetic evidence to establish ancestral relationships
Explanation :
We know that,
The cladistic approach to primate :
The cladistic approach to primate is defined as phenotypically and anatomical characteristics, genetic and common characteristics that established ancestral relationships.
It is not purely based on phenotypes only, it required genetic and anatomic behaviour and evidences.
Hence, The correct answer is option (III)
In a cell with defective chaperones, Question 14 options: proteins would not be able to exit the ribosome. the concentration of misfolded proteins would be higher than normal. proteins would not be delivered to their appropriate cellular locations. ribosomes would not associate with the endoplasmic reticulum.
Answer:
the concentration of misfolded proteins would be higher than normal.
Explanation:
Chaperones proteins are required for the correct protein folding of proteins. These proteins were first discovered in bacteria. The level of chaperones is increased under thermic stress conditions, it is for that reason that they are also known as heat shock proteins (Hsp). For example, Hsp70 is a chaperon protein constitutively expressed under stress conditions that is involved in the folding of protein precursors and the refolding of misfolded proteins. In humans, Hsp70 is encoded by the HSPA1A gene, and its increased expression level is related to different health problems including neurodegenerative diseases, cerebral ischemia and epilepsy.
What type of molecule is represented by the model below? A molecule made up of four carbon rings with other atoms bonded to those rings. Fat Carbohydrate Steroid Protein Points earned on this question: 0
Answer:
Steroid
Explanation:
Steroids are molecules that usually have 17 carbon atoms distributed in four rings of carbon bonded together and linked to atoms of other elements, as shown in the aciam figure. Steroids are molecules soluble in fat and are produced synthetically for therapeutic and even aesthetic purposes, however their use must be monitored by a responsible professional.
Answer:
STEROID
Explanation:
Steroids are molecules that usually have 17 carbon atoms distributed in four rings of carbon bonded together and linked to atoms of other elements, as shown in the aciam figure. Steroids are molecules soluble in fat and are produced synthetically for therapeutic and even aesthetic purposes, however their use must be monitored by a responsible professional.
Explain three ways in which the human
sperm cell is adapted to its function.
1) Sperm cell is adapted to its function by carrying genetic information to an egg.
2) It has a stream lined body that allows it to move quickly.
3) They also contain large number of mitochondria in the mid region, so it is able to produce a lot of energy in order to operate tail