Answer:
See the answer below
Explanation:
Normal height - H
Short height - h
Heterozygous - Hh
A cross involving heterozygotes would be Hh x Hh
Hh x Hh
HH Hh Hh hh
Since H is dominant over h;
HH and Hh would produce normal height phenotypes.
hh will produce a short height phenotype.
Thus;
Probability of normal height phenotype resulting from the cross = 3/4 or 75%
Probability of short height phenotype resulting from the cross = 1/4 or 25%
Plastics are made from oil/petroleum and have both benefits for society and harmful effects on the environment
True
False
Answer: It is True I just took the test
Explanation:
PLEASE HELP !! ILL GIVE BRAINLIEST *EXTRA 40 POINTS* DONT SKIP :(( .!
Answer:
radioactive dating
Explanation:
It's the same thing as radiometric dating
a) january
b) june
c) april
d) october
Answer:
april
Explanation:
FUN FACT: my b-day is april 11th
discuss the characteristics of phylum mollusca
Answer:
The body is soft and unsegmented. Body is divisible into three regions – head, a visceral mass, and ventral foot. Body is covered by a mantle and shell. They can be found in different habitats, both aquatic and terrestrial.
Sally, 9-year-old girl, just did an awesome backflip on her trampoline. Instead of landing in a similarly awesome manner, she miscalculated and landed on her neck. Sally stood up with pain in her neck and does not appear to be able to extend her left arm very well. An x-ray shows a fracture of her C6 vertebrae that is compressing down on her C7 vertebrae impacting the spinal nerve located between C6 and C7 vertebrae. Which spinal nerve did Sally likely injure
Answer:
The C7 spinal nerve
Explanation:
The C7 spinal nerve exits on each side through the intervertebral foramen between the C6 and C7 vertebrae. The C7 spinal nerve has both a sensory root which is composed of sensory fibers and a motor root. This nerve is required to control motor functions including shoulder movement (i.e., adduction, abduction and rotation). The C7 dermatome is a region of skin that receives sensory inputs from the C7 spinal nerve.
Why are fossil fuels considered nonrenewable resources? A. They form quickly due to decaying biomass. B. They require both sunlight and water to form. C. They cannot be used to create electricity. D. They take millions of years to form.
Answer:
B
Explanation:
Just go with it.
It's Right.
Charles Darwin observed a unique beak size
visited.
and shape in the finch population of each of the Galapagos Islands
th.
Which is the most likely cause of the observed variation?
Answer:
The Islands had different biomes
Explanation:
They had began to adapt to their surroundings.
12. Identify the stage of mitosis shown here. Describe
the events that occur in this stage.
Spindle
JUST QUESTION 12 please
The chromatids are arranged at the center, with a joined spindle at the metaphase of mitosis.
Mitosis is the type of cell division in which the parent cell divides into two daughter cells.
What are the phases of Mitosis?The mitosis is divided into four phases, namely,
ProphaseMetaphaseAnaphaseTelophaseThe arrangement of the duplicated chromatids at the center plate with the binding with spindle fiber is represented in the metaphase of the mitosis cycle.
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A plant breeder is trying to increase the medicinal quality of belladonna (Atropa belladonna), which is derived from atropine, an alkaloid in the roots. Her previous research indicates that about 55% of atropine variation is due either to environmental factors (e.g., soil conditions or rainfall), or to genetic dominance and genetic interactions. If the average plant has 10 units of atropine and our breeder selects for plants with an average of 50 units of atropine, what will be the average amount of atropine in the new population
Answer:
The average amount of atropine in the new population will be 32 units of atropine.
Explanation:
To answer this question, we need to remember how can we calculate the selection differential and the heritability in the narrow sense.
• We can get the selection differential, SD, by getting the difference between the mean value of the population´s units of atropine, PoUA, and the mean value of the parents´ units of atropine, PaUA. So, in this example the selection differential is:
SD = PoUA - PaUA
SD = 10 - 50
SD = - 40
• The heritability in the narrow sense, h², for units of atropine in the population is
h² = units of atropine of the offspring average/selection differential
But we already know the value of h² = 55% = 0.55. And we want to know the units of atropine of the offspring. So we just need to clear the following equation.
OUA = PoUA + h² ( PaUA - PoUA)
where,
• offspring average units of atropine = OUA
• population average units of atropine = PoUA = 10 units
• parents average units of atropine = PaUA = 50 units
• Selection diferential = SD = -40 units
• narrow sense heritability = h² = 0.55
OUA = PoUA + h² ( PaUA - PoUA)
OUA = PoUA + h² (SD)
OUA = 10 + 0.55 x ( 50 - 10)
OUA = 10 + 22
OUA = 32 units.
Question
of 20
If a cytosine replaces a guanine in a strand of DNA, this is known as what type of mutation?
Substitution mutation
Deletion mutation
Insertion mutation
Corruption mutation
Answer:
substitution
Explanation:
c replaces g. does not cause a frameshift mutation so it is not insertion or deletion, and i have no clue what corruption is when there is the word "replace" it is probably substitution.
Answer:
Substitution mutation
Explanation:
Mutation refers to a change in the genetic sequence of an organism. Mutation can be of different types depending on how it occurs. A type of mutation called SUBSTITUTION MUTATION involves the replacement of a nucleotide base by another in a gene.
For example, as stated in this question, when a cytosine (C) replaces a guanine (G) in a strand of DNA, it is called SUBSTITUTION MUTATION because guanine base replaces cytosine base in the sequence.
Plsss help me this due is tonight plsss
Explanation:
whatever the trait is, I'm just going to use tall as an example
1. phenotype=
Tall: Short
4:0
2.phenotype=
Tall: Short
4:0
3.phenotype=
Tall: Short
4:0
4.phenotype=
Tall: Short
3:1
5.phenotype=
Tall: Short
2:2
how would planting more biodiversity be better for ecosystems? and how would it be better for farmers?
answer:
biodiversity provides functioning ecosystems that supply oxygen, clean air, and water, pollination of plants, pest control, wastewater treatment, and many ecosystem services. seeing as how biodiversity is the basis of agriculture and our food systems. agricultural biodiversity also performs ecosystem services such as soil and water conservation, maintenance of soil fertility, conservation of biota, and pollination of plants, all of which are essential for food production and for human survival.
good luck :)
hopefully this helps
sorry i couldn't help sooner
have a great day !!
What sort of receptor do skeletal muscle cells use to receive signals from somatic lower motor neurons?
a. Nicotinic
b.Muscarinic
c.Adrenergic
d.Mechanoreceptive calcium channels
Answer:
C
Explanation:
Skeletal muscle cells use Adrenergic receptor to receive signals from somatic lower motor neurons ; ( C ) Adrenergic
Skeletal muscles are organs of the muscular system found in vertebrates. they are attached to the skeletal bones through tendons. they all posses the longest of all muscles cells as well.
Skeletal muscles receive signals from somatic lower motor neurons through the Adrenergic receptor found in all cell and tissues .
Hence we can conclude that skeletal muscle cells use Adrenergic receptor to receive signals from somatic lower motor neurons.
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Using the law of superposition and the principle of cross-cutting relationships, which of the layers of rock in this image is younger than layer C and closest in age to layer C?
A: Layer A
B: Layer E
C: Layer D
D: Layer B
Answer:
D. Layer B
Explanation:
The correct answer is Layer B.
The law of superposition actually states that the sedimentary rock unit is at the bottom while the the youngest rock is at the top. The principle of cross-cutting relationships states in layers of rocks, a fault or intrusion that cuts through rock layers is younger than the rocks that it cuts through.
Layer B was actually formed after Layer C. This makes Layer B younger than Layer C and closest in age to Layer C. The intrusion, Layer D is the youngest of all.
Answer:
b
Explanation:
What observation supports the claim that earth rotates
Answer:
The most direct observational evidence for Earth's orbital motion is the apparent shift of nearby stars after six months, as the Earth moves from one side of its orbit to the other. Because of the large distance to even the nearest start, this parallax shift is too small to been seen without a telescope.
Answer:
The most direct observational evidence for Earth's orbital motion is the apparent shift of nearby stars after six months, as the Earth moves from one side of its orbit to the other. Because of the large distance to even the nearest start, this parallax shift is too small to been seen without a telescope.
Explanation:
Hope this helped! <3
Offer a possible explanation why even identical twins are not exactly alike.
Answer:
Because identical twins are an example of sexual reproduction, which provides different looking offspring
Explanation:
Organisms that are birthed of asexual reproduction are always exactly identical
What did the plastic wrap represent in this model?
What sphere refers to water and ice?
a. atmosphere
b. hydrosphere
c. lithosphere
d. biosphere
Earth's outermost sphere is called the
a. biosphere.
b. atmosphere.
c. lithosphere.
d. hydrosphere.
What part of Earth contains rocks?
a. Biosphere
b. Hydrosphere
c. Atmosphere
d. Lithosphere
What of Earth's spheres is composed of a mixture of gases?
a. mesosphere
b. hydrosphere
c. atmosphere
d. biosphere
What is Earth's hydrosphere?
a. the gases in the air
b. the solid, rocky part of Earth
c. all of the water on the planet
d. the study of Earth's atmosphere
Which one of these statements is true?
Which of the two parts of the light microscope magnify image of an object?
Answer:
eye piece lense
objective lens
Practice Problem #1
DNA
TAC
CGC
TCC
GCC
GTC
GAC
AAT
ACC
ACT
???
mRNA
???
???
???
???
???
???
???
???
???
???
???
???
???
???
???
???
TRNA
???
???
amino
acids
???
???
???
???
???
???
???
???
Answer:
Base Substitutions. Single base substitutions are called point mutations, recall the point mutation Glu -----> Val which causes sickle-cell disease.
Deletions. ...
Insertions.
The cell membrane is ----------in nature
a. Highly permeable b. normally permeable c. not permeable d. partially permeable
Answer:
d. partially permeable
Explanation:
The cell membrane is the cellular organelle that covers and bounds all cells. It forms a boundary around a cell, protecting all other organelles. The cell membrane, according to the FLUID MOSAIC MODEL, contains phospholipid bilayer, proteins etc.
The phospholipid (lipid) content of the cell membrane confers its ability to be SELECTIVELY OR PARTIALLY PERMEABLE upon it. It is said to be partially permeable because it allows the passage of some molecules/substances and blocks the passage of others.
Populations that experience exponential growth have unlimited sources. A population can not continue to grow
exponentially indefinitely. Eventually, the population of a species will reach their limit. What curve will occur when a
population has reached this limit and what are some possible reasons for this curve shape?
PLSSS HELPPP
Answer:
Carrying capacity
Explanation:
Carrying capacity is the limit to which a population can grow with the resources (food, water, oxygen, habitat space, etc.) are available to support them. Once they reach the maximum population that the environment can support, they reach their carrying capacity.
sam enjoys looking at the stars through his telescope he learns that start were originally clouds made of dust and gasses which statement best describes how these clouse eventually become stars
A. The clouds eventually collapse the force of gravity
B. The clouds increase in temperature until they eventually form a solid
C. The clouds contain particles that are magnetically attracted to each other
D. The clouds begin to cool and fort from masses of ice that eventually fuse together
Answer: A
Explanation:
The statement which best describes how the clouds eventually become stars is that— “The clouds eventually collapse under the force of gravity”. Hence, the correct option is A.
What are stars?Star are huge celestial bodies that are formed by the vast clouds that exist in interstellar space. These clouds are mainly composed of hydrogen and helium gas as well as small amounts of heavier elements such as carbon, nitrogen, and oxygen.
Overtime, the clouds begin to collapse under their own gravity and as they do, they become denser and more compact. As the cloud collapses, it begins to spin and then flattens into a disc-like shape. This disc becomes the birthplace of new stars.
The process of star formation is not simple and straight forward. Hence, the first step of formation of stars is the cloud collapses under its own force of gravity. Therefore, option A correct.
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Describe how the movement of water landforms form
Answer:
The moving of water causes erosion, deposition and much more!
Explanation:
Water moving across the earth in streams and rivers pushes along soil and breaks down pieces of rock in a process called erosion. The moving water carries away rock and soil from some areas and deposits them in other areas, creating new landforms or changing the course of a stream or river.
How do diet and weigh loss companies use bias to sell their products
Check Check Match the function to the correct part of the cell. DNA controls the activities of the cell nucleus supports and protects the organelles in the cell cytoplasm contains instructions on how a cell functions
Answer:
DNA- contains instructions on how a cell functions
Nucleus- controls the activity of the cell
Cytoplasm- supports and protects the organelles in the cell.
Explanation:
Hope it helps you. Please mark as the brainliest. Thanks.
Answer:The answers are right js did on edge Thanks !!!
Explanation:
The diagram below shows three families. Which set of parents has the highest fitness?
A
the parents of the single child
B
the parents of two children
C
the parents of the big family
Answer:
C. the parents of the big family
Explanation:
In biology, an organism that produces as much offspring is said to have a higher fitness compared to its counterpart. It is said to be biologically fit than the rest.
Therefore, in the same vein, the parents that has the biggest family is the most biologically fit of the three families.
Ileana crossbreeds two purebred plants, one with dark blue flowers and one
with white flowers. Weeks later, she discovers that all of the offspring have
dark blue flowers. Ileana determines the
A. white flower allele is dominant
B. white flower allele is not inherited
C. dark blue allele is recessive
D. dark blue allele is dominant
Answer:
D
Explanation: it is dominant because the plants didnt show and white
what is the function of a membrane protein
Answer:
Membrane proteins can allow hydrophilic molecules to pass through the cell membrane.
Explanation:
Answer:
Explanation:
Membrane proteins are common proteins that are part of, or interact with, biological membranes. Membrane proteins fall into several broad categories depending on their location. Integral membrane proteins are a permanent part of a cell membrane and can either penetrate the membrane (transmembrane) or associate with one or the other side of a membrane (integral monotopic). Peripheral membrane proteins are transiently associated with the cell membrane.