Explain the mechanism of the movement of the human forelimbs
Answer:
Forelimb protraction starts with a rapid flexion of the shoulder joint bringing the humerus close to its maximum cranial rotation angle, almost in parallel to the mid-sagittal plane. This position has already been reached by the middle of the swing phase.
What are some ways to prevent the spread of zebra mussels?.
Zebra mussels are the invasive species of the molluscan phylum and are freshwater organisms. Proper washing and cleaning of the boats and vessels should be done.
What is the effect of the Zebra mussels?Zebra mussels are invasive and non-native species that spreads very quickly in the water bodies. There increased population affects the native species of the water bodies as it affects the food resources.
Some of the ways by which the spreading of the mussels can be prevented are by washing the boats and the vessels before reentering them in other water bodies. Another way is to dispose of the water containing baits and catches on lands instead of emptying them into other water sources.
Therefore, the spreading of zebra mussels can be prevented.
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What event determines when a chromatid becomes a chromosome.
Answer:
Anaphase
Explanation:
During anaphase, the sister chromatids at the equatorial plane are split apart at the centromere.
The medium ground finch (Geospiza fortis) and the cactus finch (Geospiza scandens) are similar in size and appearance. As you can tell from their scientific names, they belong to different species. What taxonomic ranks do they share?
Which of the following would be the response to an animal hearing movement behind it while it drinks water? A: migrating to a new location B: moving from potential danger C: moving toward light D: going into hibernation
Answer: It Would be B moving from potential danger
Explanation: I think thats its B because its more careful when the animal knows where the predators are.
Note Enter your answer and show all the steps that you use to solve this problem in the space provide
The midpoint of CD is E(-1,0) One endpoint is C (5,2) What are the coordinates of the other
endpoint?
Answer:E is as far from C as it is from D. So,CE = E-C = (-1-5,0-2) = (-6,-2)So, add that much to E and you getD = E+(E-C) = (-1,0)+(-6,-2) = (-7,-2)
Explanation:
Part of a genetic counselor’s job may be discussing with parents the probability of their
child inheriting a recessive allele for genetic disease. The counselor may use a Punnett
square to illustrate the chances of a child inheriting this allele. What is this genetic
counselor illustrating when constructing a Punnett square to advise these parents?
The Punnett square considers gamete combinations. These combinations will depend on parental alleles.
What is a Punnett square?A Punnett square is a diagram used to estimate genotypic and phenotypic proportions in a given genetic cross.
The Punnett square has into account gamete combinations to estimate genetic proportions in a given cross.
For example, in presence of a recessive allele designed as 'a' in a parent
A a
A AA Aa
A AA Aa
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Study the timeline. A timeline. 4. 5 billion years ago, Earth is formed. 4. 3 billion years ago, Earliest water. 4. 1 billion years ago, Single celled life. 3. 5 billion years ago, Earliest oxygen and photosynthesis. 2. 5 billion years ago, Complex single celled life. 1. 5 billion years ago, Multi cellular life. 500 million years ago, Land life. 300 million years ago, Dinosaurs. 200 million years ago, Mammals. 130 million years ago, Flowers. 5 million years ago, Humans. Based on the timeline, about how many years ago could the oldest mammalian organism have lived? 5 million years 200 million years 1. 5 billion years 4. 5 billion years.
Geological timeline is the chronological dating of the organisms and the geological happening in the orderly manner of the years and dates. The oldest mammals lived 200 million years ago.
What are the different species that arrived in the geological timelines?5 million years ago humans arrived, 200 million years ago first mammal organism, 1.5 billion years ago complex single-celled organisms and 4.5 billion years ago Earth was formed.
The geological timeline is important as it portrays the presence and arrival of the organisms and the formation of some of the structures.
Therefore, mammals arrived at option B. 200 million years ago.
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Long-term potentiation: Group of answer choices refers to the functional and structural changes in neurons that increase the strength of the synaptic connections involved in a particular memory.
Overemphasizing a trait to make up for a perceived or actual failing is using __________ as a defense mechanism.
name the energy that enables the molecules to move
Answer:
Kinetic energy
Explanation:
In guinea pigs, black hair is dominant. If a black guinea pig is crossed with a
white guinea pig, and the litter contains a white offspring, the genotype of the
black-haired parent is probably?
Answer:
In guinea pigs, black coat color is a dominant trait and white is a recessive trait. When heterozygous black pigs are intercrossed the chance of the first two offspring being black is: A 75%
Explanation:
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In maintaining homeostasis of body temperature, what role does the hypothalamus play?.
What are the five levels of ecological organization & how is each defined?
Answer:
The levels, from smallest to largest, are: Molecule, cell, tissue, organ, organ system, organism, population, community, ecosystem, biosphere.
describe the similarities and differences between Lichens and chloroplast-containing eukaryote lineages
The cool similarities between lichens and the chloroplast-containing eukaryote lineages are as follows:
They both have fungi and algae as their components.However, the difference between chloroplast-containing eukaryotes and lichens is that:
Lichens do not absorb nutrients and water like eukaryotesWhat are eukaryotes?Eukaryotes are organisms which possess true nucleus. Examples of protists include the following:
ProtistsFungiPlantsAnimalsLearn more about eukaryotes:
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What would be the most likely effect of a large deletion in the gene that encodes the rna part of telomerase, and how would the function of telomerase be affected?.
Telomerase would lose the function of its internal template and would be unable to correctly associate with telomeres and synthesize new telomeric DNA. :)
What portion of a pre-mRNA molecule may be cut out and discarded before the molecule reaches the ribosome?
What portion of a pre-mRNA molecule may be cut to be discarded?
ans:- In eukaryote cells the primary transcript (pre-mRNA) is processed. One or more sequences (introns) are cut out.
What does the Third Witch predict for Macbeth?
Answer:
Macbeth will be a thane, Macbeth will be king and Banquo's sons will be kings.
Explanation:
This is biology make sure to put your question under the English category.
What would be the effect of using a drug that stops further changes in the cell during G2 phase?
When the oxygen in the air combines with the iron exposed by paint peeling off an old
bicycle, a new, red-colored, crumbly substance is formed.
Physical or chemical?
Chemical. This process is not done physically.
9.
Oxygen gas
production will happen
within me.
Answer:
Into the atmosphere through tiny openings in the leaves called stomata.
When a plant cell is placed in a _ solution there will be a loss of water causing the plant to wilt
Answer:
transpiration
Explanation:
I think is transpiration
Ca(OH) – CaO + H2O
What type of chemical reaction?
combination reaction
Two compound CaO and H 2 O combine to from a single compound, Ca(OH) 2. Hence, it is a combination reaction.
Which set of phrases best describes the process of meiosis
Photons are critical to the process of photosynthesis because photons _____ are needed to excite the electrons of the pigment atoms in chlorophyl. cause leaves to appear green and attract sunlight. provide the electricity needed to excite the chlorophyll in the leaves. provide the water needed to conduct photosynthesis. provide the chlorophyll needed to conduct photosynthesis.
Photons are critical to the process of photosynthesis because photons are needed to excite the electrons of the pigment atoms in chlorophyll.
WHAT IS PHOTOSYNTHESIS?Photosynthesis is the process whereby green plants obtain their nutrition by utilizing energy from sunlight.
Photosynthesis takes place in two stages namely;
light dependent reactionslight independent reactionsIn the light dependent reactions, photons of energy from sunlight hits the chlorophyll molecules, causing them to be excited.
Therefore, photons are critical to the process of photosynthesis because photons are needed to excite the electrons of the pigment atoms in chlorophyll.
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Activated cAMP-dependent protein kinase can modify a large number of different proteins by a chemical process called ___________ , after which they can exert multiple actions within a single cell and different actions in different cells.
Answer: Phosphorylation
Explanation:
Phosphorylation is a biochemical process that involves the adding phosphate to an organic compound, it is necessary in a number of biochemical processes
One of the revolutions in molecular biology in the past decade was
the use of Green Fluorescent Protein (GFP) to make it easier to visually identify specific
components inside living cells. GFP can be seen under a microscope because it fluoresces,
or glows, when certain types of light shine upon it. Scientists can instruct a cell to link GFP
to a specific protein as it is being created and then follow the protein under a microscope.
Explain why this might be useful.
GFP can be useful because has been widely used as a biomarker and can be obtained from gene manipulation, using recombinant Escherichia coli as a microorganism for protein expression.
what does GFP allow?GFP allowed intracellular structures to be observed without the need to employ synthetic dyes or fluorescent antibodies (which may require the use of detergents for cell permeabilization, which can also harm them).
With this information, we can conclude that GFP can be useful because it has been widely used as a biomarker and can be obtained from gene manipulation, using recombinant Escherichia coli as a microorganism for protein expression.
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How long does it take for biodegradable plastic to decompose.
Answer:
three to six months
Explanation:
According to BBC Science Focus, biodegradable plastics take only three to six months to fully decompose, far quicker than traditional plastic that can take hundreds of years.
When a population has inhabited an area for a long time and the population size has stabilized because of resource limitations,
A. the population is below carrying capacity.
B. predation decreases.
C. population density is very high.
D. population density is very low
Answer:
then the population is below carrying capacity.
Explanation:
A population size will remain stable if the birth rate and the death rate are equal, as are the rate of emigration and the rate of immigration When a population has inhabited an area for a long time and the population size has stabilized because of resource limitations Carrying capacity has been reached
What organelle converts food into a form of chemical energy the cells can use?
Mitochondria
Nucleus
Endoplasmic reticulum
Chlorophyll
Answer:
Mitochondria
Explanation:
The mitochondria is known as the powerhouse of the cell bc it converts the food into usable power or "energy"
