a giant tortoise traveling at 0.3 km/hr would take how many hours to complete a marathon(42km)
140 h
Explanation:
speed =distance/ time
so rearrange the formula
time= distance/ speed
time = 42/0.3
time = 140 h
a scientist finds an organism that has a single cell without a nucleus this organism was found in pond water in which kingdom does it belong to? explain what is the answer if you find the answer i will give you 100,000 dollars
Answer:
Protista
Explanation:
In biology, there are said to be six different kingdoms that an organism can be classified under. They include Animalia, Plantae, Fungi, Protista, Archaea/Archaebacteria, and Bacteria/Eubacteria.
With this in mind, you say that a unicellular (single-celled) organism without a nucleus was found in pond water. This would point to the Protista kingdom, which are also known as protists. These organisms are single-celled beings with no big nucleus that are typically found in environments like ponds.
Hope this helped! I will take my 100,000 dollars via wire transfer (or just give this answer branliest)
help me pls ASAP it's needed
Answer: C
Explanation: Fossil Fuels are the main cause of climate change
Submit your project explaining your choices for each of the five scenarios presented.
Answer: Can you say which five scenarios is the project talking about-?
HELP ME PLEASEEE
1. What percentage of the offspring will be heterozygous?
2. Why does each parent contribute only one allele to the offspring?
Answer:
1. 50%
2. Every gamete only contains 50% of the genetic information or half of the information for a gene.
Explanation: 1. Heterozygous means the pairs consist of a dominant and a recessive, or one big and one small letter, so only 2/4 or 50% are heterozygous.
2. Every sex cell has half of the chromosomes you need to make an embryo so you end up only having one allele as well
Heterogeneous means different
Here they are 2Total 4Percentage:-.
2/4×100=50%#2
It's because they only produce 50% not 100%
In scientific inquiry, when competing hypotheses have been eliminated, a hypothesis may be elevated to the status of a scientific
Answer:
Scientific Theory
Explanation:
This instrument has made it possible for scientists to observe certain objects and processes that would otherwise never have been seen with the naked eye or a common magnifying glass, because they are more stable and can be built with greater magnifying power, so that smaller structures can be seen and studied. It is used in a wide range of scientific fields, and has contributed to major discoveries in biology, medicine and materials research. What is the instrument?
Answer:
The modern field of biomaterials combines medicine, biology, physics, and chemistry, and more recent influences from tissue engineering and materials science.
Explanation:
The answer is microscope.
Which of these events is a likely result of chemical water pollution?
A. Algae are killed by solvents that have run off into a pond.
B. Rainbow trout disappear from a stream because of high water
temperatures.
C. Fish die from lack of oxygen due to an algal bloom.
D. Sediment particles floating in water clog the gills of fish.
What’s the correct answer???
B is not the correct answer
Answer:D
Explanation: If it were A it would have to be C and vice versa so definitly D
Answer: A. Algae are killed by solvents that have run off into a pond.
Explanation: I just took the test
Write about Cryptogams and Phanerogams
Explanation:
Cryptogams: Thallophytes, Bryophytes and Pteridophytes are called Cryptogams.Cryptogamae means having hidden reproductive organs.The reproductive organs in these plants are inconspicuous. Their naked embryos are called spores.Phanerogams: Gymnosperms and Angiosperms are Phanerogams.Phanerogams are the plants with well differentiated reproductive tissues. The seeds enclose embryo which is suspended in the stored food.-TheUnknownScientist 72
The first step in sensation for some sensory systems is the __________, which modify incoming stimuli. Sensory receptors accessory structures absolute thresholds thermoreceptors.
During sensation, the first step for some sensory systems is the accessory structures, which are saddled with the responsibility of modifying an incoming stimuli.
A sensory system refers to components of the central nervous system (CNS) which comprises of the brain, neural tissues (pathways) and sensory neurons that are responsible for sensory functions, perception and processing of sensory information such as light, sound, heat, etc.
Basically, the five (5) main sense organs in the sensory system include the following:
SkinTongueEarsNoseEyesThe accessory structures is typically the first step the first step for some sensory systems because they are saddled with the responsibility of modifying an incoming stimuli.
Read more on accessory structures here: https://brainly.com/question/21151620
Answer:
Accessory Structures.
Explanation:
during which phase of mitosis are the spindle fibres formed around the sister chromatids?
Answer:
Metaphase
Explanation:
In prophase, spindle fibers start emerging from the centrosomes. In metaphase, the spindle fibers attach to the sister chromatids.
When cells go through division in the early stages of life, they are known of stem cells. How do
we end up with all the different types of cells?
Answer:
these differentiate as a result of signaling mechanisms. ... The daughter cells divides and after each division it becomes more specialized. When it reaches a mature cell type downstream (for example, becomes a red blood cell) it will no longer divide.
Answer:
stem cells are called upon to generate a particular type of cell, they undergo asymmetric cell division.
Explanation:
with asymmetric division, each of the two resulting daughter cells has it's own unique life course
1) What is the scientific method?
A.) a way of cleaning the science lab before an experiment
B.) set of procedres used to create an accurate representation of the world
C.) a description of physical science
D.) making up your own conclusions
how has the change in the human population over time affected the environment
Which phase of the systems development life cycle would describe in detail the desired features of the system
Answer:
Phase 3
Explanation:
Phase 3 of the systems development life cycle describes the desired features and operations of the system. The objective of the systems design phase is to transform all requirements into detailed specifications covering all aspects of the system. It should also assess and plan for security risks. Finally, approval to progress to the development phase must be granted to complete the systems design phase.
To test a new drug that has the potential of curing people of the common
cold a company asked human volunteers who were coughing and sneezing
to participate in a clinical study. The objective of the experiment was to test
whether the new drug could cure the volunteers in the experimental group of
the common cold. But instead of two groups, these volunteers were randomly
divided into three groups and treated as follows:
Group
Experimental
Group
Yes
Control
Group 1
NO
Control
Group 2
No
New ONS
Orange
Bedre
Yes
No
Yes
Yes
Which of the following is the best explanation of why a second control group
was included in this experiment?
O A To prove that the common cold cannot be cured
B. To provide the volunteers in the study with something to drink
O C. To help researchers conclude that results are related to the new
drug and not to the orange juice
O D. To confuse anyone who is trying to steal their new drug and sell it
as their own invention
Answer: C
Explanation: A good experiment does everything it can to eliminate confounding, or the influence of external sources on the data being measured. Orange juice could be a factor that plays a role in curing the symptoms, so provide a group with and without orange juice gives you the ability to show that the influence of orange juices didn’t have an effect on the cold, or did, but it gives you a baseline to show the effects of the medicine with and without orange juices.
what is the effect of antidiuretic hormone on the cells of the collecting duct?
tRNA:
a) helps to translate codons to DNA
b) transfers anticodons to rRNA
c) recognizes anticodons in the mRNA
d) joins one specific amino acid
Answer:
A transfer RNA (abbreviated tRNA and formerly referred to as sRNA, for soluble RNA) is an adaptor molecule composed of RNA, typically 76 to 90 nucleotides in length (in eukaryotes), that serves as the physical link between the mRNA and the amino acid sequence of proteins. Transfer RNA (tRNA) does this by carrying an amino acid to the protein
Explanation:
The dark reaction doesn't require sunlight, for energy. Why?
A) It gathers energy from the chlorophyll.
B) It stores energy inside of the chloroplast.
C) It gathers all of its energy and stores it in its Mitochondria
D) It gathers its energy from organic batteries called ATP or NADPH.
Answer: C it gather energy from the mitochondria
which macromolecule is the main component of cell membranes
Answer:
lipids
ion know
Answer:
Lipids
Explanation:
Monarch butterflies have brightly colored orange wings with black patterns on them, making them easily visible to birds that eat butterflies and moths, yet birds rarely eat the monarchs. Likewise, the monarch caterpillars are brightly striped yellow and white and black, and they also are rarely eaten by birds, although some wasps will attack them and feed them to their young. What can be inferred from these observations?
A. Monarchs must threaten and attack birds, but not wasps.
B. Monarchs have a way of discouraging bird predation that does not involve hiding.
C. Monarchs' wings are so colorful that most birds must find them difficult to eat.
D. Monarchs lay more eggs than other less conspicuous butterflies.
Answer: it would be B or C but i think its B
Explanation:
Imagine that you are managing a large wildlife preserve that was formerly a cattle ranch. You know from historical accounts that wild sheep used to live there, but they were hunted until the local population was exterminated. After doing some research to determine what might be an appropriate starting population, you introduce them. Food is abundant and they have no natural predators. You then spend several years graphing the number of individuals (on the vertical axis) against the number of generations (on the horizontal axis). By the 10th generation, the population begins to reach carrying capacity.
Requried:
What BEST defines this mathematical model used in population studies?
The mathematical model used in this population study is known as the logistic growth model.
What is logistic growth model?The logistic growth model is a mathematical model that is used to describe the growth of a population over time. It is based on the idea that the growth of a population is limited by resources such as food, habitat, and space, and that as the population grows, the rate of growth begins to slow. This results in a curve that starts out steep and then levels off as the population approaches its carrying capacity, which is the maximum population size that can be sustained in a particular environment.
In the scenario described, the population of wild sheep is introduced to a wildlife preserve where food is abundant and there are no natural predators. This means that the population is able to grow at a relatively fast rate, but as the population increases, it begins to approach the carrying capacity of the preserve. At this point, the rate of growth begins to slow, and the population levels off.
This is reflected in the graph, which shows the population increasing rapidly at first and then leveling off as it reaches carrying capacity. The logistic growth model is often used to understand and predict the growth of populations in a variety of contexts, including agriculture, biology, and economics.
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Which units can be used to measure length or distance? Check all that apply.
Answer:
what are the options?
Explanation:
we dont know what the units are lol
During transcription, a strand of mRNA is made based on the DNA template in the _______________.
help!!!!
Answer:
During transcription, a strand of mRNA is made based on the DNA template in the nucleus.
Explanation:
Hope this helps.
atp comes from which biochemical system in the muscle?
Answer:
Phosphagen system. Glycogen-lactic acid system. Aerobic respiration.
Explanation:
1. Describe the equator and identify which letter represents it in the picture. Make sure to use a complete sentence in your response.
А
B
C
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the global distribution of the diversity of phytoplankton is indicated in the map shown here. which statement best describes the reason for the distribution of different species of phytoplankton as shown here?
PLEASE HELP ME OUT!!
Answer:
A)Light levels and average temperatures are higher at 0 degrees latitud…
Explanation:
got it right on usa testprep :)
If a star is moving toward Earth, it is
O A. blue shifted
O B. shrinking
O C. red shifted
O D. expanding
Answer:
If a star is moving toward Earth, it is blue-shifted.
Explanation:
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What enzyme is used in the production of low calorie food and why is it used? No links please x
for an enzyme to be able to catalyze a reaction, the active site must —
Answer:
Active site of an enzyme must be attached to a substrate
Explanation:
Active site of an enzyme must be attached to a substrate
For an enzyme to be able to catalyse a reaction, the active site must bind with the specific substrate. This is referred as 'enzyme-substrate' complex.
Why do enzymes catalyse a reaction?Enzymes have the property of catalytic activity. All the enzymes are proteinaceous in nature. Enzymes specifically bind with the substrate and thus initiates a catalytic reaction. This is referred as enzyme-substrate specificity.
Enzymes associate with the substrate at a specific site by lowering the activation energy. This forms the active site where the reaction occurs. The substrate thus transforms into the product upon the action of enzyme.
Enzymes are unique as they speed up any chemical reaction. They help in achieving the equilibrium at a faster rate. Daily thousands of enzymatic reactions are carried out in the body.
Thus, enzymes are important in the biochemistry as they persuade chemical reactions.
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