Why were most test tubes incubated at 37 ⁰C?
Answer:
Optimal Growth Conditions
Explanation:
Different bacteria like to grow at different temperatures. By changing the temperature. Organisms that grow best at human body temperature, which is approximately 37 degrees Celsius (98.6 degrees Fahrenheit), are called mesophiles.
Hope this helps.
What structure separates the abdominal cavity from the thoracic cavity?
A. Cranium
B. Diaphragm
C. Mediastinum
D. Pelvis
{30 points} [brainliest] pls help
Which of the following is the organ system that allows people to think, sense the environment, and respond to stimuli?
A. The digestive system
B. The integumentary system
C. The nervous system
D. The endocrine system
Answer:
C
Explanation:
The nervous system
..........................
Image A points to :
Phospholipid bilayer
Osmosis occurring
Simple diffusion process
Facilitated diffusion process
Channel proteins
Answer:
It Is osmosis occurring
Explanation:
plz give me brainiest
(1 point)
3. What kind of scientist examines rocks to learn about Earth's history and
structure
COO
Obotanist
O chemist
O geologist
Obiologist
Answer:
Geologist
Explanation:
Geo means earth
LARGEST to SMALLEST
chromosome
Cell
Nucleotide
DNA
Nucleus
how could a cell disease-causing bacteria get inside a cell without damaging the cell membrane
Answer: Bacteria are much larger than viruses, and they are too large to be taken up by receptor-mediated endocytosis. Instead, they enter host cells through phagocytosis. Some pathogens, however, have acquired the ability to survive and replicate within macrophages after they have been phagocytosed.
Explanation: This is my answer
Disease causing bacteria enters the host cells through phagocytosis.
Phagocytosis is the process used by the cells allow the disease causing bacteria enters the host cells. Phagocytosis is the process by which a cell use its plasma membrane to engulf large particle which can't enter through the holes of cell membrane.
Bacteria has a large size which can't be enter into the cell through semi-permeable membrane of the cell like glucose and water molecules so it enters the cell through phagocytosis so we can conclude that cell use phagocytosis in order to enter the cell.
Learn more: https://brainly.com/question/19038637
Calculate phenotype frequencies in 5th generation. Record in Lab Data
Answer:
The number of moths in 5th generation (G5) with:
Typica phenotype (white) = 878
Carbonaria phenotype (black) = 54
total moths observed = 932
5th generation Phenotype frequency:
f (Typica) = Number of Typica phenotype in G5/ total moths in 5th gen
f (Typica) = 878/ 932
= 0.94
f (Carbonaria) = Number Carbonaria phenotype in G5/ total moths in 5th gen
f (black) = 54/ 932
= 0.057
The phenotype frequency in the 5th generation is:
0.057According to the given question, we can see a table which contains the values of Environment, Phenotype Frequency and Allele Frequency and we are asked to calculate the phenotype frequency in the 5th generation.
As a result of this, we can see that we have to use the values of the Typica phenotype (white), the Carbonaria phenotype (black) and the total moths observed = 932 with the formula, Number of Typica phenotype/total moths in 5th gen.
With this in mind, we would get f (black) = 54/ 932 which would give us the value of 0.057
Therefore, the correct answer is 0.057
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(30 points) {Brainliest} pls help
Which branch of biotechnology involves the use of biological processes as part of chemical production and other industrial processes?
A. Red biotechnology
B. Green biotechnology
C. White biotechnology
D. Blue biotechnology
Answer:
C
Explanation:
White biotechnology, also referred to as industrial biotechnology is all about using living cells and enzymes to synthesize products that can be degraded easily, creates lesser waste during production and consumes less energy
Answer:
The answer is white biotechnology
Explanation:
I took a test and answered green and got it wrong
Please I need help this is due tomorrow
Answer:
When they swap places.
Explanation:
Since they both create new combinations of genes.
i don't know much about this but i do hope it helps!
SOMEONE PLZ HELP!!!!!!!
Answer:
Cytoskeleton Brainlest? :)
Explanation:
Answer:
Cytoskeleton
Explanation:
Where is the subduction zone located?
Answer:
between the arachnoid and dura
Explanation:
hope it helpss
When comparing two species, the presence of which type of structures indicates descent through modification from a common ancestor
Answer:
Homologous characters indicate descent through modification from a common ancestor.
Explanation:
Homologous characters have the same fundamental structures. They also share the same relations with adjacent structures, and they have the same embryological development.
These structures might show variations between organisms exhibiting them, according to their function and to the environment in which the organism lives.
These homologous characters are common in organisms related and that share a common ancestor.
For example, whales, humans, and horses all have the same bones in the same order, but they matured differently in later embryological development. This is an example of homologous characters.
Homologous characters indicate descent through modification from a common ancestor.
and also by comparing the DNA of the two species. The more nitrogenous bases and amino acids two species have in common, the more closely related they are.
Which are the best examples of homologous structures?
An example of homologous structures is the forelimbs of vertebrates, where the wings of bats and birds, the arms of primates, the front flippers of whales and the forelegs of four-legged vertebrates like dogs and crocodiles are all derived from the same ancestral tetrapod structure.
Thus by examining the homologous structures one can determine.
To learn more about homologous structures click here:
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Describe the process of fertilization. Include in your explanation the name of the new cell
created, how many chromosomes it contains and whether it is diploid or haploid.
Answer:
Fertilization is the process in which haploid gametes fuse to form a diploid cell called a zygote. To ensure that each zygote has the correct number of chromosomes, only one sperm can fuse with one egg.
Explanation:
( pls help lol ty ) { 30 points } [brainliest]
A medical imaging scan that includes a patient's right lung, heart, and left lung is examined. The scan doesn't indicate in which plane it was taken. Based on the contents of the image, which plane can be ruled out automatically?
A. The coronal plane
B. The sagittal plane
C. The anatomical plane
D. The transverse plane
Answer:
the anatomical plane...........
Plsssss helppppp!!!!!!
The plasma membrane of a cell consist of
A. protein molecules arranged into layers with polar areas forming the outside of a membrane
B two layers of lipids organize with a nonpolar tales forming the interior of the membrane
Answer:
2 Layers
Explanation:
Your welcome.
The plasma membrane of a cell consist of two layers of lipids that are organized with a nonpolar tails forming the interior of the membrane.
What is a plasma membrane?It is a biological membrane.It creates a barrier between intracellular and extracellular environment.It regulates the molecules entering and leaving the cell.It is a selectively permeable membrane.The structure of plasma membrane?It is composed of lipids and proteins.It is arranged in 2 layers with polar heads towards outside and non-polar hydrophobic tails towards the interior.The proteins can either be integral or peripheral.To learn more about membrane, intracellular, extracellular, and cell here,
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#SPJ2
Please help i have not been able to do my work for a whole week because my computer broke so please help / idk the subject it dos not have science so ill pick a random
Answer:
The answers Are in the explanations
Explanation:
Classification-
The process of grouping things
based on similarities.
Taxonomy
The scientific study of how living
things are classified.
Aristotle-Was Credited with creating the first classification system around 5AD. And he only classified objects as plants or animals
Carolus Linnaeus was known as the Father of Taxonomy.And he Gave us the hierarchical system we now use.(His system had 3 Kingdoms)
- Animals
- Plants
- Mineral
**Sorry I don't know the answer to this question here(george fox and Carl worse....)**
The 8 levels of classification:
Broadest levels:
1.Domain
2.Kingdom
3.Phylum
4.Class
Most specific:
5.Order,
6.Family,
7.Genus,
8.Species
*Species is the most specific category of classification of organisms so as each group split into smaller groups the organisms are more specific.**
Domain is The highest rank of organisms in biological taxonomy. It divides all cellular life forms into three groups.
Archaea
Bacteria
Eukaryotes
The enzyme responsible for the digestion of proteins in the small intestine is:
1) Trypsin
2) Lipase
3) Amylase
4) Pepsin
. What are some consequences of using fossil fuels?
Answer: Using fossil fuels pollutes the air and increases carbon levels by releasing carbon dioxide when burned, which makes climate change worse.
Human sexuality is influenced by.
_____ factors.
1)Biological
2)Psychological
3)Socio-cultural
4)All of the above
I need the answer as soon as posible! It’s difficult for me,find the answer on internet,cause English is not my first language.
serious people please
4
that salad was really hot don´t judge me
Seasons of Change Activity Worksheet—Disappearing Marine Iguanas Case Study
Instructions: Complete the lab report below while you explore the impact the events have on the Marine Iguana population in the Seasons of Change Activity—Disappearing Marine Iguanas Case Study. You will submit your completed activity worksheet.
(20 points possible)
Part One
Using the map and the minimal knowledge that Liz has at this point, propose three different hypotheses regarding the sudden high mortality of marine iguanas. Post your hypotheses to the discussion board before proceeding to the next question. (3 points possible)
Hypotheses One:
Hypotheses Two:
Hypotheses Three:
Look at your classmates’ hypotheses on the discussion board. Choose one hypothesis that seems most likely to you. Provide the student name and hypothesis and tell what evidence you would need to support (or refute) it.(3 points possible)
Part Two
Given what you know at this point about marine iguanas and the abiotic effects of ENSO, develop two possible directions of research that Liz should pursue to understand exactly why the iguanas suffered such a high mortality. Keep in mind that you need to consider indirect effects. While environmental temperature does change metabolic rates of ectotherms, the iguanas are exposed to a wide range of temperatures as they feed and bask on the lava. Direct mortality in response to a temperature change of a couple of degrees is unlikely. (3 points possible)
Possible Research Direction One:
Possible Research Direction Two:
Choose one of those directions of research and determine what data you would need to find to support your ideas. (2 points possible)
Design an experiment that would help you collect the data you have identified in question four. Identify your independent variable(s), dependent variable(s), treatments, and control. (5 points possible)
What conclusions do you think Liz made about the cause of population declines in marine iguanas? (4 points possible)
Answer:
1. Using the map and the minimal knowledge that Liz has at this point, propose three different hypotheses regarding the sudden high mortality of marine iguanas. Record your answers in the worksheet and post your hypotheses to the 03.01 class discussion board before proceeding to the next question. (3 points possible)
Hypotheses One: Iguanas are adapted to hot/warm weather, so the weather changed could have affected them.
Hypotheses Two: There was not enough shelter for the iguanas so they started disappearing.
Hypotheses Three: A new species has come close to where the iguanas live and taken them out.
2. Look at your classmates’ hypotheses on the discussion board. Choose one hypothesis that seems most likely to you. Provide the student name and hypothesis and tell what evidence you would need to support (or refute) it. (3 points possible) Carter Spiers, Hypothesis 1. there was a lot of rain and it washed at the iguanas away. We would have to dive into the water/ ocean and find iguana bodies to be able to prove that this is true.
3. Given what you know at this point about marine iguanas and the abiotic effects of ENSO, develop two possible directions of research that Liz should pursue to understand exactly why the iguanas suffered such a high mortality. Keep in mind that you need to consider indirect effects. While environmental temperature does change metabolic rates of ectotherms, the iguanas are exposed to a wide range of temperatures as they feed and bask on the lava. Direct mortality in response to a temperature change of a couple of degrees is unlikely. (3 points possible)
Possible Research Direction One: The climate event caused a lot more rainfall which then made it very hard for the iguanas to reach their food source.
Possible Research Direction Two: The temperatures raised very high causing the iguanas to absorb a extreme about of extra heat, which eventually made them very lazy and stopped defending their self from predators.
4. Choose one of those directions of research and determine what data you would need to find to support your ideas. (2 points possible) Specific data of the extreme amounts of rainfall.
Explanation:
Using the map and the minimum information that Liz has at this point, advise 3 exclusive hypotheses concerning the surprising excessive mortality of marine iguanas, subsequent question. (three factors possible).Hypotheses One: Iguanas are tailored to hot/heat climate, so the climate modified may want to have affected them.Hypotheses Two: There become now no longer sufficient safe haven for the iguanas so they began out disappearing.Hypotheses Three: A new species has come near in which the iguanas stay and brought them out.
2. Look at your classmates' hypotheses at the dialogue board. Choose one speculation that appears maximum probable to you. Hypothesis 1. there has been of rain and it washed on the iguanas away. We might should dive into the water/ ocean and locate iguana our bodies on the way to show that that is true.
3. Given what you already know at this factor approximately marine iguanas and the abiotic consequences of ENSO, expand feasible instructions of studies that Liz ought to pursue to apprehend precisely why the iguanas suffered the sort of excessive mortality.
Possible Research Direction One: The weather occasion brought about plenty extra rainfall.Possible Research Direction Two: The temperatures raised very excessive inflicting the iguanas to soak up.4. Choose one of these instructions of studies and decide what records you'll want to locate to help your ideas. (2 factors possible) Specific records of the intense quantities of rainfall.
What is Marine Iguanas Case Study?Marine iguanas are maximum mentioned for cappotential to feed in shallow, marine waters. They are herbivores and devour marine algae developing alongside rocky sea shore lines and underwater.
Thus it is well explained.
To learn more about the Marine Iguanas refer to link :
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4. Earth's lower mantle lies belor what
Answer:
crust
Explanation:
Answer:
the crust
Explanation:
Earth's lower mantle lies just below the crust. In geology, a crust is the outermost layer of a planet. The crust of the Earth is composed of a great variety of igneous, metamorphic, and sedimentary rocks
Suppose there was NO meiotic recombination but maternal and paternal chromsomes still assorted randomly during meiosis. How many different kids would be possible from two parents?
Answer:
8,324,608 chromosome combinations
Explanation:
During meiosis, chromosomes separate independently so that only one chromosome came from the father and the other homologous chromosome came from the mother. This process of independent assortment produces a huge amount of possible combinations in the diploid zygote cell. In humans, the haploid number of chromosomes is n = 23, thereby there are 2²³ = 8,324,608 chromosome combinations. Thus, the independent assortment of chromosomes during meiosis is a key factor that contributes to genetic variation in the offspring.
Science
Which environment would have the most erosion?
Select one:
A deciduous forest.
A tropical rain forest.
The open ocean.
An ocean shore.
Answer:
an ocean shore
Explanation:
the water and wind erode the sand
A woman of childbearing years who is not pregnant has _______ absorption rate of calcium as compared to a woman who is pregnant
Answer:
The correct answer is - lower
Explanation:
Pregnant women require an increased amount of calcium as it can provide a sufficient amount of calcium for herself and her fetuses. During lactation, the calcium is reabsorbed very fast and rapidly that supplies the calcium for the milk. So, the normal women of childbearing age do not require the amount of calcium as pregnant women require.
Thus, there is a lower absorption rate of calcium as compared to a pregnant women
Laws have been enacted to regulate cigarette labeling and advertising. What is this an example of?
an impact of changing scientific knowledge on society
the interrelationship of science and technology
an influence of society on scientific progress
the changing nature of scientific knowledge
Answer: B
Explanation: Society is basically a community of people and the way they live. The study on smoking is definitely science. So it would be b.
Answer:
A
Explanation:
I'm pretty sure it's A :)
What is the term for cell division
Answer:
Binary Fission would be correct I think.
Explain the structural organization of chloroplasts
Answer:
The chloroplast has an inner and outer membrane with an empty intermediate space in between. Inside the chloroplast are stacks of thylakoids, called grana, as well as stroma, the dense fluid inside of the chloroplast.
Explanation:
Hope it helps.
Why did the scientific community initially reject Wegener’s theory of continental drift?
Wegener could not explain what made the continents move.
Wegener thought mountains formed from the shrinking of Earth.
Wegener thought mountains formed when continents collided.
Wegener used evidence from different scientific fields.
Answer: A) Wegener could not explain what made the continents move.
Hope this helps!! :D
