Answer:
D
Explanation:
All living things begin as two cells. True False
Answer:
True
Explaination:
The idea that all living things are made up of cells which can only come from other living cells, is known as cell theory. All living things are made up of cells.
When calculating heritability in finch beak size using parent/offspring data, we find that 70 percent of the variation in the trait is due to genetics. What might explain the remainder of the variation? Select all that apply.
A.
nutrition
B.
color
C.
precipitation
D.
stress
E.
rarity
F.
temperature
Answer:
A. nutrition
Explanation:
The most likely explanation for the remainder of the variation would be nutrition. Little is known about how exactly nutrition affects genetics and heritability, but it is known that it does. Scientists believe that traits that allow a species to feed more successfully have a drastically increased chance of appearing in offspring as it greatly contributes to their survival. When a trait does not allow the species to gain the proper nutrition, the species tends to develop other traits to accomplish this which then get passed on to offspring.
Answer:
A. Nutrition
C. Precipitation
F. Temperature
What is the medical significance of complete lack of growth on any of the plates?
The lack of oxygen, poor/ bad bacteria smear, or difference in temperature that prevents optimal growth, within media.
The medical significance of complete lack of growth should be in lacking of oxygen, bad bacteria, etc.
What is oxygen?Oxygen refer to the chemical element. It denotes the symbol with O and have the atomic number should be 8. It should be third common element in the universe after considering the hydrogen and helium.
Also, it is more than 5th of the earth atmosphere via the volume.
Therefore, The medical significance of complete lack of growth should be in lacking of oxygen, bad bacteria, etc.
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Human what is the study of how humans inherit chromosomes.
A.Biology
B. Breeding
C. Genetics
D. Engineering
Answer:
C. Genetics
Explanation:
Answer:
90% sure its c
Explanation:
point
Look at the energy pyramid below. If there is 100 Kcal of energy in the
producers at level 1, how much energy is available in the herbivores at level
2?
100 Kcal
10 kcal
1 kcal
90 kcal
Answer: 100kcal
Explanation:
4
Which is true for the beginning of the Cenozoic era? *
(1 Point)
Dinosaurs had killed all mammals
Mammals first appeared
Dinosaurs had become extinct
O Mammals and dinosaurs lived together
Answer:
Mammals first appeared
Explanation:
The dinosaurs became extinct one million years after the Cenozoic era started. The mammals first appeared as the modern culture first appeared in that era.
Answer is Mammals first appeared Dinosaurs had become extinct.This statement is true.
A student’s cat gave birth to a litter of kittens. She noticed that one of the kittens had brown fur and one of the kittens had white fur. Which of the following best explains how two kittens in the same litter can have different fur colors?
Explanation:
because the mom must be either brown your white and the dad must be the other color
The best explanation for the statement that how two kittens in the same litter can have different fur colors are the brown kitten and the white kitten have different combinations of the genes for fur color. The correct option is B.
What is genetics?The study of genetics covers how a person inherits traits from their parents. It explains how familial traits—be they simple like eye color or complicated like disease susceptibility—run in families.
Both genomics and genetics have an impact on health and disease. The study of genes and how particular traits or conditions are passed down from one generation to another is referred to as genetics. The study of a person's entire gene pool is referred to as genomics.
Therefore, the correct option is B. The brown kitten and the white kitten have different combinations of the genes for fur color.
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The question is incomplete. Your most probably complete question is given below:
A. The brown kitten and the white kitten must have different sets of parents
B. The brown kitten and the white kitten have different combinations of the genes for fur color
C.the brown kitten and the white kitten have different chromosomes for the 2 fur colors
D.the brown kitten has a different number of chromosomes than the white kitten
when is speciation complete?
Answer:
Speciation has become complete when organisms of one population do not recognize the mating call of another population and so mating does not occur. Which of the following statements about reproductive barriers and speciation is true? Speciation can occur with even a single gene mutation if that mutation involves reproductive barriers.
Explanation:
Which of the following characteristics would you expect the North Pacific Gyre to have?
A)Clockwise rotation
B)Counter-clockwise rotation
C)Northward flow into the Arctic Ocean
D)Southward flow into the Southern ocean
Answer:
A
Explanation:
The gyre has a clockwise circular pattern and is formed by four prevailing ocean currents: the North Pacific Current to the north, the California Current to the east, the North Equatorial Current to the south, and the Kuroshio Current to the west.
Answer:
A) clockwise rotation
Explanation:
I took the test
PLEASE HELP! YOU GET 10 PTS!!
How have water and wind shape the Earth's surface?
TYSM!
Answer:
It has shaped things like the Grand Canyon
Explanation:
Bcause of erosion
Answer:
Water and wind shape the Earth's surface through weathering, erosion, and deposition. All three of these processes break rocks down and thus, changing the Earth's surface, as Earth's surface is mostly made of rock. Hope it helps!
Explanation:
The process of ecological change in a community over time
Answer:
ecological succesion
What is the minimum pH difference such that transfer of one H ion across the membrane would provide enough energy to make one molecule of ATP?
Answer:
The minimum difference is already the value of 1
Explanation:
When the pH is not balanced between the extracellular and intracellular environment, the cell could go into shock, that is why in the face of the minimal differences in pH between the internal or external environment, the proton pump is activated, this is how the hydrogen ion or positively charged protons cross the membrane and indirectly generate ATP molecules.
Your myth:Are parakeets and macaws related
Fact:
Evidence:
I will give 20 points
Answer:
yes
Explanation:
All birds in the bird family are related
Answer:
they are related because they are both parrots i actually have 3 parakeets
Explanation:
I really really want a macaw
How many water molecules are needed to balance the given chemical equation ? दी गई रसायनिक समीकरण को संतुलित करने के लिए जल के कितने अणु चाहिए ? *
Captionless Image
3
4
2
5
When heavier more dense oceanic crust is pushed under less dense continental
crust, what time of landforms does this create?
trenches
volcanoes
mountains
rifts
Answer:
trench
Explanation:
Metamorphic rocks form when what is applied to an existing rock?
heat and pressure
rock and roll
gravity and steam
steam and time
Answer:
Heat and pressure i just took the test
Explanation:
Within to the rock cycle, which of the following is NOT correct?
оооо
Metamorphic rocks may melt to become magma.
Sedimentary rocks may weather to become igneous rocks.
Heat and pressure may change igneous rocks into metamorphic rock.
Magma may crystallize to form igneous rocks.
Answer:
Did you get the answer
Explanation:
Pls help
Answer: the answer is B because the only way a igneous rock is formed is when it crystallize from the volcano or something like that
In DNA replication:
a) each new single helix is composed of 50 percent protein and 50 percent DNA protein.
b) each new triple helix is composed of one old DNA strand and two new DNA strands.
c) each new double helix is composed of one old protein strand and one new protein strand.
d) each new double helix is composed of one old DNA strand and one new DNA strand.
In DNA replication, each new double helix is composed of one old DNA strand and one new DNA strand. So, the correct option is (D).
What is DNA replication?DNA replication is defined as the biological process of making two identical copies of DNA from a single original DNA molecule that occurs in all living organisms, acting as the most essential part for biological inheritance.
It is the process by which the DNA of the genome is copied into cells, where a cell must first copy (or replicate) its entire genome before dividing so that each resulting daughter cell ends up with its own complete genome.
DNA replication involves:
Replication Fork Formation.Before DNA can replicate, the double stranded molecule must be "unzipped" into two single strands.
Primer Binding.The leading strand is the simplest to replicate.
Elongation.TerminationThus, in DNA replication, each new double helix is composed of one old DNA strand and one new DNA strand. So, the correct option is (D).
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Which of the following statements indicate why the cell theory is a theory instead of a law?
Answer:
Cell theory is theory instead of law because cell theory doesn't have enough support to become a law
what basic chemical do we break apart during cellular respiration
fats
glucose
water
or
amino acids
Answer:
glucose
Explanation:
During cellular respiration, living cells break apart the glucose molecules.
In this process, energy is being released.
It's the process of burning because the breaking apart of glucose releases the energy slowly and uses it for biochemical processes. Glucose and oxygen react and form carbon dioxide and water, and in this way, they release energy.
How is a scientific law formed?
Answer:
For a scientific law to form there has to be a lot of experiments and information about that. This is to help them make sure that they are correct
Explanation:
How can this PLR (pupillary light reflex) help you determine whether the lesion is in the eye itself or elsewhere?
Answer:
Pupillary light reflex refers to the contraction that the pupils present when they light up. In cases of injury to the optic nerve, when the eye where the injured optic nerve is illuminated, since it cannot conduct the stimulus to the brain, neither pupil closes.
Explanation:
Pupillary light reflex refers to the reaction that causes the pupil to close with light thanks to the contraction of the sphincter of the pupil and to open in the dark thanks to the relaxation of that muscle by not receiving any stimulus. A light stimulus reaches the eye and in the retina it is transformed, through a chemical reaction, into an electrical stimulus that will be transmitted through the optic nerve and the visual pathways to the brain. The visual cells of the retina, rods and cones, also act as light receptors that control the pupil's motor activity. Thus, pupil-motor thresholds to light follow the same spectral sensitivity deviations as visual thresholds, which are a function of the state of light adaptation of the retina.
Hurry! Will give brainlest if correct worth 25 points! In which parts of the cell cycle would chromosomes be paired up? Check all that apply.
interphase
metaphase l
anaphase II
telophase II
metaphase ll
telophase l
Answer:b and d
Explanation:I think hope it helps
Answer:
The correct answers are B and D
Biology In which stage of the cell cycle does dna duplicate
Answer:
S Phase
Explanation:
DNA replicates in the S Phase . Please see images below for how the S Phase process works.
Which of the following statements regarding genetic mutations is true?
O Mutations are always helpful, leading to the survival and genetic diversity (variation) of a given population
O Mutations are always harmful and can lead to the extinction of a species or population
Mutations can be either harmful or beneficial, providing either an advantage or disadvantage to the individuals survival
Mutations always lead to an decrease in the genetic diversity (variation) of a given population
Answer:
The last two points are true
Explanation:
Mutations are harmful and beneficial but can also be neutral
Mutations do cause a variation of given poulation
In humans, to fold the tongue is a dominant trait (L), and the straight tongue is the recessive trait. What are the probabilities that the offspring can fold the tongue?
The given question is incomplete as the genotype of the parents is not given, so the answer is providing in the followings case:
1. dominant parent and recessive parent
2. heterozygous parents
Answer:
1. dominant parent and recessive parent:
dominant parents can be represented by LL and recessive parent is represented by ll, so the gametes would be L, L and l, l.
so,
L L
l Ll Ll
l Ll Ll
so there are all offspring in heterozygous condition as we known one or two dominant allele masks the recessive allele for the trait so 100% offspring can fold their tongue.
2. heterozygous parents
In this case, parents have Ll genotype and gametes would be L and l for each parent so,
L l
L LL Ll
l Ll ll
In this case, one is pure dominant and two heterozygous whereas only one is recessive so, the phenotype of offspring that cant fol the tongue would be:
3/4 = 75%
How do genetic factors, environmental factors, and pathogenic agents affect both individual and public health?
Answer:
Genetic factors are very important because genes make our strong immune system that is not badly affected by weak traits or disease. Environmental factors are important because they can cause/spread disease.
Learning Task 2. Find the equation of the line . Write in slope intercept form
and in standard form
1. m = -5, b= 1
3. (-2, 0) and (0,5)
2. (1, -2), (3, 3)
4. a = 2, b = -7
5.m=2,(3,-1)
Answer:
(1) m = -5, b= 1
[tex]\frac{x}{a} + \frac{y}{b} = 1[/tex]
put b=1 (given)
[tex]\frac{x}{a} + \frac{y}{1} = 1[/tex] => y = -x/a + 1
-1/a is representing slope here which is given as -5
-1/a = -5 => a = 1/5
slope intercept form
y = mx +b
y = -5x + 1
standard form
5x +y = 1
(2). (1, -2), (3, 3)
m = 5/2
slope intercept form
y - 3 = 5/2*( x -3)
y = 5x/2 -9/2
standard form
5x -2y = 9
(3). (-2, 0) and (0,5)
m = 5/2
slope intercept form
y - 0 = 5/2 ( x+2)
y = 5x/2 + 5
standard form
5x -2y = -10
(4). a = 2, b = -7
[tex]\frac{x}{2} + \frac{y}{-7} =1[/tex]
slope intercept form
y = 7x/2 -7
standard form
7x -2y =14
(5). m=2,(3,-1)
slope intercept form
y +1 = 2(x -3)
y = 2x -7
standard form
2x -y = 7
If a person's body temperature were 37.5 °C (99.5 °F), the _____ would stimulate the _____ to lower the temperature.
A. brain; sweat glands
B. sweat glands; brain
C. spinal cord; muscles
D. muscles; spinal cord
Explanation:
the answer is B..your brain , sweat glands, 4 protection, during a high fever, sweating is your body attempts 2 cool off...
what is a natural depression filled with standing freshwater called please help
Answer:
it was b!!!!!!!! i took the test
