Colonial protists have been hypothesized to be the precursors to multicellular organisms. This hypothesis suggests that the individual unicellular members of the colony, which are initially identical, can begin to take on different functions. Then. the colony can begin to evolve into a multicellular organism. True or False
Answers
Answer:
True.
Explanation:
Protists are group of eukaryotes that are unicellular or microscopic and some times multicellular. They can live in colonies and live individually.
Some protist live in large groups called colony.
Colonial protists form larger groups of multicellular organisms. The individuals work together as large groups and perform functions to benefit each other.
most of the colonial protist are filter feeders that feed on suspended particles. Colonies enhance feeding efficiency. In choanoflagellates, coloniest has led to the evolution of metazoans
Related Questions
I need help with dis plzzzz it is actually algebra
Answers
Answer:51/1, car travels 51 miles every 1 hour
Explanation:
relationship between distance and time (miles/hr)
204 miles/4 hrs
simplify:
(204/4) miles / (4/4) miles
51 miles/ 1 hr
How many kingdoms are there in the domain Bacteria?
OA. 3
OB.A
OC. 2
OD. 4
Answers
Answer:
c
Explanation:
The classification system for bacteria has undergone several revisions, and different sources may give slightly different answers. However, based on the most widely accepted classification system, there are 2 kingdoms in the domain Bacteria:Kingdom Eubacteria (true bacteria)Kingdom Archaebacteria (ancient bacteria or archaea)Therefore, the answer is option C, 2.
In the domain Bacteria, there are two recognized kingdoms: Eubacteria and Archaebacteria. Eubacteria includes the vast majority of known bacterial species, while Archaebacteria includes a smaller group of bacteria that are often found in extreme environments such as hot springs, salt flats, and deep-sea hydrothermal vents.So, the correct answer is C, 2.
Human caused climate change (most notably, global warming) has many positive feedback loops intrinsic to itself. Please describe at least one of these loops and explain how it is potentially dangerous for habitability of the earth.
Answers
When we burn fossil fuels to produce electricity, heat, and more, they emit greenhouse gases (GHGs) like carbon dioxide (CO2) and methane. These gases trap the sun’s energy in Earth’s atmosphere as heat. As more and more GHGs are released, more heat gets trapped and the planet warms up, disrupting the long-standing, delicate climate systems that have made life on Earth possible.
The stronger storms and longer droughts we see becoming a dangerous new normal are a direct result. But how these impacts play off each other is far more nuanced. In many cases, the wildfires or disappearing glaciers we see in the headlines have unseen knock-on effects that lead to, well, more wildfires and disappearing glaciers.
Think of it like dominos lined up in an infinite spiral – once one domino falls, it creates a reaction that pushes over another and then another right on down the line.
In two or three well-developed paragraphs, summarize how the reproductive behavior of individuals can affect the growth rate of their population.
Answers
Answer:
We will be happy to take a look at your work
why iodine turns blue black in the presence of starch
Answers
Answer:
amylosee in starch is responsible for the formation of a deep blue colour in the presence of iodine.
Hope this helps
Fats, sugars, and proteins are important food molecules. Which statement about these types of molecules is true?
Answers
The statement "There are all macronutrients" is true about these types of molecules
What are macronutrients?Macronutrients, essential components required by the body in substantial quantities, furnish energy, foster tissue growth and mending, and govern physiological processes. The trio of primary macronutrients encompasses carbohydrates, protein, and fat.
The precise magnitude of macronutrient requisites relies on factors such as age, gender, physical exertion, and overall well-being of an individual.
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Complete question:
Fats, sugars, and proteins are important food molecules. Which statement about these types of molecules is true?
a. There are all macronutrients
b. Sugar makes one fat
c. Sugar is the only thing that makes you fat
A bacterium called Salmonella can cause
food poisoning.which kingdom is it in?
Answers
Answer:
monera kingdom
Explanation:
Answer:
The kingdom is Monera Kingdom
Explanation:
Two parachutists, a heavy person and a light person, jumping
from the same altitude have the same size parachute. Who
reaches the ground first?
(a) The heavy person.
(b) The light person.
(c) They reach the ground at the same time.
(d) More information is needed.
Answers
Answer:
The heavy person
Explanation:
When something has more mass gravity pulls it down faster. Here's an example, a brick and a feather a brick falls fast a feather floats down.
Part A
Which Of The Following Student-Drawn Cell Models Contain Two Chromosomes? Select All That Apply.
Answers
Answer:
the last one , the second to last one and the first one I am pretty sure
A, C and D are the student-Drawn Cell Models that Contain Two Chromosomes.
Every cell in your body has DNA, which is the form in which your genetic code is stored. It creates your body's manual of operations. Each cell's nucleus contains chromosomes, which are structures that resemble threads and contain the DNA molecule.
A chromosome is referred to be a "homologous chromosome" if it has a similar genetic makeup but also includes replication-induced variations. Sister chromatids are the two halves of a certain chromosome that are joined at the centromere. Chromosomes known as "replication chromosomes" arise after the cell has undergone the process of DNA replication to prepare for cell division.
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A plant that has round seeds is crossed with one that has wrinkled seeds. The offspring had half round seeds and half wrinkled seeds. What were the genotypes of the parents?
A plant that has round seeds is crossed with one that has wrinkled seeds. The offspring had half round seeds and half wrinkled seeds. What were the genotypes of the parents?
Rr x Rr
RR x rr
Rr x rr
RR x Rr
Answers
Answer:
2nd one
Explanation:
I believe this is correct. rr is a recessive homozygous.
If I wanted the ground to all water to pass from one side to the other, what type of
soil would I use?
Soil that is tightly packed together and won't allow water to pass through
I would use concrete instead
Soil that is permeable.
Soil that is NOT permeable
Answers
The soil that is permeable was used Instead of densely packed soil that will not allow water to pass through, I would use concrete.
define permeability ?
Permeability is the capacity of a porous material to transmit a fluid; it is expressed as the velocity with which a fluid of specified viscosity passes through a sample with a certain cross section and thickness under the influence of a given pressure. Permeability is mostly determined by the size and form of the pores in the substance, as well as the size, shape, and packing arrangement of the grains in granular materials such as sedimentary rocks.
The darcy is the standard unit of permeability, which is defined as the flow of one cubic centimetre of fluid (with a viscosity of one centipoise) per second through a sample one square centimetre in cross-sectional area at one atmosphere per centimetre of thickness.
The soil that is permeable was used Instead of densely packed soil that will not allow water to pass through, I would use concrete.
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A section of the DNA code, called a gene, which codes for ....
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Answer: A section of the DNA code, called a gene, codes for a specific protein or RNA molecule that plays a particular function in the body. The sequence of the nucleotides in the gene determines the sequence of the amino acids in the protein, which in turn determines the structure and function of the protein. The genes also control the development, growth, and maintenance of the body by regulating the expression of other genes and proteins.
Explanation:
Where is the cell wall located?
A. inside the cell membrane
B. surrounding the nucleus
C. inside the nucleus
D. outside the cell membrane
Answers
A solution with pH 9 has ________________ times ____________________ OH- than a solution with pH 6.
Answers
Answer:
basic
Explanation:
ph value 9 base is ph value is 9and 20
5’ 3’
T A
A T
T A
G C
C G
3’ 5’
what would happen if a DNA molecule went through a DNA Replication
Answers
ssignm I. Write TRUE if the statement is correct and FALSE if it is incorrect for the 1. Viruses are considered to be intermediate between living and non-living things. 2. Pasteurization is a method of heating milk and other food stuffs which is followed by rapid cooling. 3. White blood cells (lymphocytes) produce special protein called antigen. 4. Species are a group of organism that can breed successfully with one other to produce fertile offspring. 5. Tuberculosis caused by bacterium called salmonella typical. 6. In the scientific naming of organism, the 1st name is genus name. 7. Gymnosperm plants are lower plants that have well developed root, stem and Space for Tutorial Comment Marks leaves. 8. Sunlight is the primary source of energy for all plants. 9. Autotrophs are organisms that can synthesize their own energy from the raw material. 10. The major organic substances in living organisms are carbohydrate, lipid and protein. hest answer for the following questions. niem is fungus? arium
Answers
The following are:
TRUE. Viruses are not considered to be aliveTRUE. Pasteurization is a method of heating milk TRUE. White blood cells (lymphocytes) are a type of immune cell TRUE. A species is a group of organisms FALSE. Tuberculosis is caused by a bacterium TRUE. In the scientific naming of organismsFALSE. Gymnosperm plants are a group of plantsTRUE. Sunlight is the primary source of energy for all plantsTRUE. Autotrophs are organisms that can synthesizeTRUE. The major organic substances in living organisms What are the reasons?1. TRUE. Viruses are not considered to be alive because they do not have their own metabolism and they cannot reproduce on their own. However, they do have some of the characteristics of living things, such as the ability to evolve and to interact with their environment.
2. TRUE. Pasteurization is a method of heating milk and other food stuffs to a specific temperature for a set period of time, followed by rapid cooling. This kills harmful bacteria without affecting the taste or nutritional value of the food.
3. TRUE. White blood cells (lymphocytes) are a type of immune cell that produces antibodies. Antibodies are proteins that bind to specific antigens, which are molecules that are foreign to the body. This binding helps to protect the body from infection.
4. TRUE. A species is a group of organisms that can breed successfully with one other to produce fertile offspring. This means that the offspring will be able to reproduce themselves.
5. FALSE. Tuberculosis is caused by a bacterium called Mycobacterium tuberculosis. Salmonella typhi is a bacterium that causes typhoid fever.
6. TRUE. In the scientific naming of organisms, the first name is the genus name. The genus name is followed by the species name. For example, the scientific name for humans is Homo sapiens.
7. FALSE. Gymnosperm plants are a group of plants that have seeds that are not enclosed in an ovary. They are considered to be higher plants, along with angiosperms (flowering plants).
8. TRUE. Sunlight is the primary source of energy for all plants. Plants use sunlight to convert carbon dioxide and water into glucose, which is a sugar that they use for energy.
9. TRUE. Autotrophs are organisms that can synthesize their own energy from the raw materials. They are able to do this through a process called photosynthesis.
10. TRUE. The major organic substances in living organisms are carbohydrate, lipid, and protein. Carbohydrates are used for energy, lipids are used for storing energy, and proteins are used for building and repairing cells.
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Why do plant use nitrogen in their own form?
Answers
as for HOW plants use nitrogen, they get it from the soil rather than directly from the air.
When is your breathing likely to speed up?
A. When your heart cells need more carbon dioxide
B. When your white blood cells increase
C. When your blood cells have too
much oxygen
D. When your cells need more energy
Answers
Your final answer: The answer is D.
Study the picture above. Describe what is happening
Answers
Answer:
Distinguish between intracellular and extracellular fluids ... ions against their concentration gradients to maintain the cytosol fluid composition of the ions
Explanation:
3. The principle of uniformitarianism is a key concept that allows geologists to study Earth's past.
A. What is the principle of uniformitarianism? (5 points)
B. How does this principle make it easier for geologists to understand Earth's past? (5 points)
Answers
Answer:
A. What is the principle of uniformitarianism?
Uniformitarianism would therefore be a theory of the Earth characterized by the uniformity of physical laws, processes and the rhythm with which they have acted in nature (gradualism).
B. How does this principle make it easier for geologists to understand Earth's past?
In geology, uniformitarianism has included the gradualist concept that "the present is the key to the past" and that geological events occur at the same rate as they always have, although many modern geologists no longer hold to strict gradualism.
Explanation:
I hope I helped you! :)
three factors that cause environmental pollution
Answers
Answer:
Oil,air pollution and soil erosion
sorry if I get it wrong
Answer:
industries , Transportation , Agricultural Activities
Explanation:
Environmental pollution has existed for centuries but only started to be significant following the industrial revolution in the 19th century
The Atlantic puffin feeds on several species of Atlantic fish. A population of puffins living on Matinucus Rock was found to feed on the types of fish shown in the graph below. The beaks of this group of puffin are shaped to grasp Species A particularly well. Predict what would happen to the puffins’ beaks if another predator enters the area that is better at preying on Species A. Explain your reasoning based on what you know regarding genetic adaptations.
Answers
The number of Atlantic puffins that have adapted to species A will decrease as competition for species A increases. After several generations, the puffins that eat species B and C will be formed.
What is adaptation?
Adaptation is the process of changing in response to a changing environment. An example is seen in puffins. The puffin that eats species A has a different beak. When another predator enters who preys upon species A, then competition will increase. As a result, species A's consumption of puffin will decrease.
Those puffins that eat species B and C will survive. They will reproduce and produce more offspring. The number of puffins with beaks in Species B and C will increase over time.
Hence, after many generations, puffins of species B and C will increase.
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Your first assignment is to provide information to the firm BigMoney Inc., a chemical producer in Kansas interested in using microbes to clean toxic spills (bioremediation). BigMoney Inc. has had a major spill of inorganic S that contaminated the soil around their plant. Scientists at BigMoney have developed mechanisms for removing H2S from soil, but have not found one for S. They want to know on a strictly theoretical basis (regardless of whether bacteria exist in nature that actually do these specific reactions) if there are any types of bacteria that could use S to give rise to H2S. (7 points total)
S ? H2S (-0.274)
a) is this an oxidation or reduction?
b) is S serving as an electron acceptor or donor?
c) Which of the following metabolisms (aerobic respiration, anaerobic respiration, aerobic chemolithotrophy and anaerobic chemolithotrophy) could be used to carry out this reaction? You can assume the reaction given above is either the initial oxidation reaction or the final reduction reaction. You must think about whether each of these metabolisms can oxidize or reduce inorganic materials. Remember, think strictly theoretically. Note, you must indicate ALL metabolisms that could be used. (1 point)
d) For each of the metabolisms that could be used, describe exactly how H2S will be formed providing the following information: (5 points)
Is the initial electron donor (from where are the electrons being taken) organic or inorganic?
Which of the pathways discussed in class (glycolysis, TCA, electron transport chain, chemolithotrophy, photosynthesis, and fermentation) will be used to get the electrons?
Is the final electron acceptor oxygen or not oxygen, and is it organic or inorganic?
Please provide a specific example of a half reaction (either initial oxidation or final reduction) that would work with the half reaction provided in this scenario, and briefly describe why it was chosen. Hint: your answer must consider the reduction potential of the electron acceptor compared to that of the electron donor and the half equation given must be either the donating or accepting reaction. Note: you may assume other molecules, both organic and inorganic, are present in the soil.
Answers
Answer:
i dont know how to answer this question
Explanation:
When the mutated DNA sequence is transcripted/translated, what was the outcome?
ig _ander80239 in need of bio honors test help
PLS HELP
Answers
Answer:
Explanation:
Transcription is the process by which the information in a strand of DNA is copied into a new molecule of messenger RNA (mRNA). ... The newly formed mRNA copies of the gene then serve as blueprints for protein synthesis during the process of translation.
The membranes of cells are made up of mainly:
phospholipids
proteins
cholesterol
carbohydrates
Answers
Answer:
Proteins
Explanation:
Cell membranes are composed of proteins and lipids. Since they are made up of mostly lipids, only certain substances can move through. Phospholipids are the most abundant type of lipid found in the membrane. Phospholipids are made up of two layers, the outer and inner layers.
Which statement best explains how the genetic code is universal? * The shape of a DNA molecule is the same in different species. A DNA sequence codes for the same proteins in different species. The nucleotide ratios in the DNA molecule are different between species. DNA sequences are unique for each species.
Answers
Answer:
A DNA sequence codes for the same proteins in different species
Explanation:
All living organisms store their genetic information in DNA (genetic material). The manner through which information in the genes are encoded is the GENETIC CODE. The genetic code comprises of all the codons that specifies amino acids in living organisms. The genetic code has several characteristics, which includes that the GENETIC CODE IS UNIVERSAL
The genetic code is said to be universal because all known living organisms use the same genetic code to encode their genetic information. This means that a DNA sequence codes for the same proteins in several different species. For example, codon AUG encodes the amino acid METHIONINE in every living organism.
how does measuring volume of a solid via length x width x height compare to the displacement method?
Answers
The geometric method can be more accurate and precise when measuring regular-shaped solids, while the displacement method is more useful for measuring the volume of objects that are difficult or impossible to measure using the geometric method.
What are the methods for measuring the volume of a solid?Measuring the volume of a solid by multiplying its length, width, and height (L x W x H) is a method called the geometric method. This method is based on the assumption that the solid has a regular shape, such as a rectangular prism, and can be measured with a ruler or other measuring tool.
On the other hand, the displacement method is a technique used to measure the volume of irregularly shaped objects. In this method, the object is placed in a container of water, and the volume of water that is displaced by the object is measured. This volume of water displaced is equal to the volume of the object.
The main difference between these two methods is that the geometric method assumes that the solid has a regular shape, while the displacement method is used for irregularly shaped objects.
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How frequently should one apply sunscreen while swimming on a sunny day?
Once since water absorbs UV rays
More often since water reflects UV rays
Once since water reflects sun's radiation
More often since water absorbs sun's radiation
Answers
Answer:
"More often since water relfects Uv rays
Explanation:
Answer:
More often since water reflects UV rays
The region under the lithosphere and athenosphere and above the outer core
Answers
Mesosphere. The mantle in the area below the lithosphere and asthenosphere but above the outer core is referred to as the mesosphere.
What do you call the layer situated between the lithosphere and the outer core?Between the narrow crust and the planet's dense, extremely hot core is the mantle. A staggering 84% of the total volume of the Earth is made up of the mantle, which is roughly 2,900 kilometres (1,802 miles) thick.
Between the lithosphere and asthenosphere, what is the layer called?At a depth of around 2900 km, the mantle extends to the interface between the core and the mantle. Thus, the lower portions of the lithosphere, asthenosphere, and mesosphere are found in the mantle. The top layer of the lithosphere makes up the crust.
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PLS help!! Thank you.
Assume that two strands of DNA have been separated and that the base sequence on one strand is AGCC. What is the sequence of bases on the complimentary strand of DNA?
A. GCTT
B. TCGG
C. AGCC
D. TACA
Answers
adenine(A) base with thymine(T) and guanine(G) base with cytosine(C) A = T, G ≡ C. The correct answer is B) TCGG