tudents put the same type of bacteria in 15 Petri dishes. Antibiotic A was applied to 5 dishes, Antibiotic B was applied to 5 dishes and Antibiotic C was applied to 5 dishes. At the end of 2 weeks, the number of bacteria colonies were counted. What is the independent variable?
Answer:
The type of Antibiotic.
Explanation:
The independent variable is the variable that is changed in an experiment.
In this case, there are different types of antibiotics in this experiment.
What do arches and bacteria have in common ?
Answer:
-Bacteria contain fatty acids on the cell membrane, whereas archaea contain phytanyl. Explain the statement that both types, bacteria and archaea, have the same basic structures, but built from different chemical components. Both bacteria and archaea have cell membranes and they both contain a hydrophobic portion.
Explanation:
Archaea and bacteria are both prokaryotes, meaning they do not have a nucleus and lack membrane-bound organelles. ... Both archaea and bacteria have flagella, thread-like structures that allow organisms to move by propelling them through their environment.Bacteria contain fatty acids on the cell membrane, whereas archaea contain phytanyl. Explain the statement that both types, bacteria and archaea, have the same basic structures, but built from different chemical components. Both bacteria and archaea have cell membranes and they both contain a hydrophobic portion
How is WHAM related to Nucleic Acids?
Answer:
Nucleic acid is an important class of macromolecules found in all cells and viruses. ... Deoxyribonucleic acid (DNA) encodes the information the cell needs to make proteins. A related type of nucleic acid, called ribonucleic acid (RNA), comes in different molecular forms that participate in protein synthesis.
Explanation:
A cell sends messages to itself via
O paracrine signaling
o the endocrine system
k
o the nervous system
O autocrine signaling
A cell sends messages to itself via Autocrine Signaling
Autocrine signaling refers to the generation and extracellular secretion of a given chemical messenger that interacts with receptors present in the plasma membrane of the same target cell, thereby initiating a signal transduction pathway.An example of an autocrine signaling pathway is the production and secretion of the cytokine interleukin-1 (IL-1) pro-inflammatory cytokine in monocytes.Moreover, paracrine signaling is a type of signaling that occurs between local cells.Endocrine signaling is a type of signaling pathway that occurs between distant cells. This type of signaling is mediated by chemical messengers called 'hormones' which are released from endocrine cells and travel throughout the body.Learn more in:
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1. Your friend needs quick energy! What kind of biomoleciste should he eat a lot of? 2. Why? Be specific, what do your cells do with this biomolecule that would help him run? 3. Name two kinds of foods have high amounts of this biomolecule.
What does a cell need to be a prokaryote cell?
please help me i’m stuck !!
Answer:
The Prokaryotic CellProkaryotes are unicellular organisms that lack organelles or other internal membrane-bound structures. Therefore, they do not have a nucleus, but, instead, generally have a single chromosome: a piece of circular, double-stranded DNA located in an area of the cell called the nucleoid.
What can be observed on the empty plastic bag?
After running 45 meters, how far is she from the beginning of the track
Answer:, she will be on the 55-meter as the sum of 10 and 45 is 55
Explanation:Therefore, her distance from the beginning of the track will be 55 - 0 = 55
Mendel bred a purple-flowered pea plant with a white-flowered pea plant and found that all the offspring had purple flowers. But then when he bred together two of the purple-flowered offspring, some of their offspring had white flowers. Using the concepts of dominant and recessive alleles, explain how the trait of white flowers skipped a generation.
Which bio molecule is responsible for long term energy
Answer:
C; lapids
Explanation:
Open-pit mining creates a large hole in the ground after minerals are removed from the surface. Which statement best describes an environmental consequence of this process?
Heavy metals are released into surrounding soil, poisoning local vegetation.
High salinity of wastewater reduces soil fertility and growth of vegetation.
Billions of gallons of water are pulled from surrounding ecosystems.
Wastewater is contaminated with oil and becomes sludge in landfills.
Answer: (A) Heavy metals are released into surrounding soil, poisoning local vegetation.
Explanation: Open-pit mining falls under the surface mining category in the lesson 01.07 page 3/8 under the affects of surface mining the only one that is in the multiple choice questionnaire is "Heavy metals are released into surrounding soil". (don't know how much this helps since I'm 7 days late but hey this is a new curriculum and I've had trouble finding answers on brainy so why not contribute for once ¯\_(ツ)_/¯ )
The correct statement that best describes an environmental consequence of open-pit mining is that heavy metals are released into the surrounding soil, poisoning local vegetation.
The large hole left by open-pit mining becomes filled with water during heavy rains with heavy metals dissolving in the water to form solutions.These solutions percolate the surrounding soil and when they are taken up by the vegetation on the soil, the plants become poisoned by the heavy metals.In other words, the hole created by open-pit mining serves as an avenue for heavy metals to get into the surrounding soil and gets into the food chain through the plants.
More on the environmental consequences of mining can be found here: https://brainly.com/question/1757425
of
5. Which cannot fix atmospheric nitrogen in the soil?
b) Clostridium c) Azotobacter
a) Rhizobium
d) Penicillin
Answer:
The atmospheric nitrogen cannot be taken directly by plants and animals. Certain bacteria and blue green algae present in the soil fix nitrogen from the atmosphere and convert into compounds of nitrogen.
hope it helped
Why is the scientific method so important in science
The scientific method attempts to minimize the influence of bias or prejudice in the experimenter.
Bias is a disproportionate weight in favor of or against an idea or thing, usually in a way that is closed-minded, prejudicial, or unfair. In science a bias is a systematic error.
The head is what to the tail
You are building a birdhouse when you cut your finger. Predict which body systems would be immediately involved with your reaction to the cut.
A. nervous system, circulatory system, integumentary system
B. digestive system, endocrine system, lymphatic system
C. integumentary system, reproductive system, muscular system
D. skeletal system, respiratory system, urinary system
Answer:
A.
Explanation:
The nervous system, circulatory system, integumentary system, will be involved.
Hope this helps, have a great day.
The body systems that would immediately get involved with my reaction to the cut are nervous system, circulatory system, integumentary system. That is option A
The systematic factors that are required for wound healing after sustaining a cut in the finger include:
The nervous system: here the nerve cells in the skin help wounds to heal. When an injury occurs, cells known as glial cells change into repair cells and disseminate into the wound, where they help the skin to regenerate.The circulatory system: The cut surfaces become inflamed and blood clot and cell debris fill the gap between them. Phagocytes from the blood stream, begins to remove the clot and cell debris stimulates fibroblast.The integumentary system: the skin contains extracellular matrix (ECM) which is made of collagen and elastic fibres that provide structure to the skin and are necessary for wound closure.Learn more here:
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What is the key to studying biology?
Answer:
To learn biology, you have to understand the words and terms used to explain it. As you encounter words you don't recognize, write them down and then look them up. When words seem to have prefixes or roots, take the time to break them down and understand their parts.
Hope it helps to you.Answer:
If you love to learn about living things and how they relate, studying biology might be the right fit for you.
What Organelles do plants cells have that animal cells do not? Why won't animal cells need these organelles? NO COPY AND PASTE!
Answer:
chlorophyll and cell walls
Explanation:
plants are producers that make there own food using the chlorophyll in there own cells there cell walls are there to help maintain the water in their cells animals on the other hand must consume food to acquire energy and they don't need cell walls to maintain cellular water because they get more water drinking
What is the control group??
2. What are the modes of asexual reproduction in Porifera?
(Choose all that apply)
- gemmule formation
- budding
- binary fission
- shedding
Pls help ASAP I’ll give brainiest!!!!!
Answer:
Shedding, Budding, Gemmule Formation
Explanation:
I took the Quiz
Answer: The correct answers are "gemmule formation", "budding", and "shedding"
Explanation:
I took the test
How do red blood cells help animals?
Answer:
The function of RBCs is to carry oxygen to the tissues at pressures sufficient to permit its rapid diffusion. Explanation:
Answer:to carry oxygen from lungs to tissues
Explanation:they contain haemoglobin, which has Fe that binds to the oxygen to be carried
Question 6 of 10
Which statement best describes science?
A. Science can answer any and all questions,
B. Science cannot answer questions about what people should do
C. Science cannot answer questions about the natural world,
D. Science can answer only mathematical questions,
Answer:
A..... science can answer all questions
Explanation:
science can answer all questions
Compare and contract induction and deduction.
Answer:
Both deduction and induction are a type of inference, which means reaching a conclusion based on evidence and reasoning. Deduction moves from idea to observation, while induction moves from observation to idea. Deduction is idea-first, followed by observations and a conclusion.
Explanation:
state 3 main parts of eukaryotic cell
Answer:
The three main parts of a eukaryotic cell are the cell membrane, the cytoplasm and the nucleus.
Answer:
Cell Membrane, Cytoplasm, and The Nucleus.
Explanation:
1. Explain how dehydration synthesis and
hydrolysis are related.
Answer: In dehydration synthesis reactions, a water molecule is formed as a result of generating a covalent bond between two monomeric components in a larger polymer. In hydrolysis reactions, a water molecule is consumed as a result of breaking the covalent bond holding together two components of a polymer.
How much do the Tanakas spend on health insurance premiums each year
Answer:
6,000
Explanation:
name the processes A and B shown in Fig 2.1
Answer:
this is food chain of living beings
Interaction with the Environment
Answer:
Human environment interaction is the way people adapt and modify the environment. There are 3 types of human environment interaction The way people depend on the environment for food, water, timber, natural gas etc. The way people modify the environment positively or negatively like drilling holes, building dams.
Explanation:
what is The Big Dipper is called in Astronomy?
Answer:
Ursa Major
Explanation:
known as the great bear
Answer:
The big dipper is aka the ursa major
the little dipper is ursa minor
Explanation:
What similarities, if any, do you think exist between a human’s reproductive cycle and the life cycle of a fern? What differences, if any, can you think of?
Answer:
The similarity between ferns and humans is that both go through meiosis and mitosis. But ferns are different because they have multicellular, free-living haploid and diploid forms. In humans, the haploid stage exists in the form of single cells—sperm and eggs. Only the diploid stage that begins with a zygote grows mitotically to form a multicellular, free-living human.
Explanation:
Humans and ferns are similar as both of these organisms fertilize to reproduce while differs in the haploid form of life which is present in the ferns and the male and female reproductive parts present in humans.
What is the life cycle of a fern?
The life cycle of fern includes the diploid fern which gives rise to the haploid spores that grows and form a gametophyte plant in which both the male and female reproductive systems are present. The male gamete undergoes fertilization with the female gamete to form a diploid spore (seed) which gives rise to the new fern plant.
Human’s reproductive cycle include diploid animals and the male and female genders which can be distinguished clearly. The male gamete-sperm fertilizes with the female gamete-egg to form the diploid zygote that gives rise to a new human.
Learn more about Ferns here:
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Prophage refers to: (please give right answer only)
Answer:
: an intracellular form of a bacteriophage in which it is harmless to the host, is usually integrated into the hereditary material of the host, and reproduces when the host does.