which fossil alone provides evidence that South America Africa India Australia and Antarctica were once joined into one supercontinent known as gondwanaland
Answers
Answer:
The fern fossil
Explanation:
The fern fossil has shaded regions in South America, Africa, India, and Australia. This provides evidence that the fern was once located on each of the four continents.
Related Questions
Someone please help me
Answers
Answer:
Because the reaction creates glucose and oxygen, the products will be C6H12O6 + O2
Explanation:
Question:What does codominance mean in genetics?
1.Both alleles are dominant and are expressed.
2.Both alleles are recessive and are not expressed.
3.The alleles are neither dominant nor recessive.
4.Each allele is both dominant and recessive.
Answers
Option 1
that can give nice mixtures of colors in flowers, like alleles for white and red are expressed, and mixed to pink seen by the human eye
Codominance mean in genetics is the alleles that are neither dominant nor recessive. So, the correct option is (C).
What is Codominance?Codominance is a type of inheritance in which two alleles of the same gene are expressed differently to produce different types of traits in an individual.
It is a heterozygous condition in which both alleles at a single gene locus are fully expressed in the phenotype. These alleles showing an independent effect are called codominant alleles.
In codominance, neither phenotype is completely dominant nor recessive. For example, the ABO type of blood group.
The gene which control human ABO blood groups has three alleles, not just two:
[tex]I^A[/tex] and [tex]I^B[/tex]are not dominant over one another. These are dominant over [tex]I^O[/tex].
Thus, Codominance mean in genetics is the alleles that are neither dominant nor recessive. So, the correct option is (C).
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What genotype of parent will have only black fur off spring?
Answers
Answer:
BB or Bb
Explanation:
Black fur is dominant so it has to have at least one B allele.
please help me with this
Answers
Answer:
The second option is the correct answer, the one your mouse is on.
It's B⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀
What goes in the center of a Lewis Dot Structure?
A. nucleus
B. element name
C. element symbol
Answers
Answer:
Element symbol
Explanation:
The element symbol goes in the center of a lewis dot structure with valence electrons around it.
Answer:
C. element symbol
Explanation:
The element symbol goes in the center of a Lewis Dot Structure.
oofjnbjnbujbujbjlnboubojbnl;nuoibuoj
Answers
Answer:
5
Explanation:
Answer:
B.) 5
Explanation:
Adenosine Triphosphate (ATP) is...
A. An energy storage molecule that cells use as energy 'currency'
B. A DNA molecule responsible for storing genetic information
Answers
Answer:
A. An energy storage molecule that cells use as energy 'currency'
Explanation:
Adenosine triphosphate (ATP) is the source of energy for use and storage at the cellular level. The structure of ATP is a nucleoside triphosphate, consisting of a nitrogenous base (adenine), a ribose sugar, and three serially bonded phosphate groups.
Answer:
A. An energy storage molecule that cells use as energy 'currency'
Explanation:
Adenosine Triphosphate (ATP) is an energy storage molecule that cells use as energy 'currency'.
What are some examples of negative feedback?
Select all that apply.
The body produces a protein. In turn, the protein triggers the body to make more of the protein.
Pupils getting smaller to reduce the amount of light reaching the eye when the light is very bright.
Cells increasing their activity to produce more heat when it is cold.
The kidneys reducing the water level in the body when a person drinks a lot of fluids.
WILL GIVE BRAINLIEST
Answers
Answer
Cells increasing their activity to produce more heat when it is cold
Explanation
Negative feedback is a strategy of the body to maintain homeostasis, that is, to maintain the dynamic balance of the body. It can be defined as a situation where the body causes a negative change, contrary to the factor that is causing the body to become unbalanced.
Cells increasing their activity to produce more heat when it is cold.
What is Negative feedback?Negative feedback is a strategy of the body to maintain homeostasis, that is, to maintain the dynamic balance of the body. It can be defined as a situation where the body causes a negative change, contrary to the factor that is causing the body to become unbalanced.
When a system's outputs are subsequently fed back into it, the influence of successive iterations is minimized or reduced. This situation is known as negative feedback.
Negative feedback loops in markets can thereby lessen volatility, for instance through contrarian or value investment.
Therefore, Cells increasing their activity to produce more heat when it is cold.
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what's it called when an Organism has both the dominate trait and recessive gene.
Answers
Answer:
That would be Heterozygous
What is the main function of the immune system?
A. keeps you healthy
B. regulates your blood flow
C. removes waste (i.e. urine and sweat)
D. allows you to move
Answers
Answer:
A. keeps you healthy
Explanation:
The immune system protects your body from outside "invaders," such as bacteria, viruses, fungi, and toxins.
Answer:
A. keeps you healthy
Explanation:
The main function of the immune system is to keep you healthy. Protecting us is the duty of the immune system.
The layer in a body of water in which temperature drops with increased depth faster than it does in other layers is called the
Answers
Answer:
Thermocline
Explanation:
The thermocline is an intermediate layer between the less dense top surface layer and the cold, dense water below.
Help me guys in science
Answers
B=6
C=5
D=1
E=8
F=7
G=2
H=9
I=3
Which of these is an example of a common?
O A. Pet hamster
O B. Service dog
O C. Wild lion
O D. Dairy cow
Answers
Answer:
C. A wild lion
Human skin cells are specialized to do what
Answers
Answer:
The primary function of these cells is to create the barrier between you and the rest of the world. Keratinocytes produce the protein called keratin, and by the time the cells have been pushed up from the basement membrane, they are mostly sacks filled with keratin.
Explanation:
Which of the following statements is
FALSE?
•Disposal of radioactive waste is easy & poselittle risks to the environment.
•Radioactive waste still emit radioactivity.
•Radioactive materials can cause mutations.
Answers
•Disposal of radioactive waste is easy & poselittle risks to the environment.
Which of the following describes hemophilia?
O multiple-allele trait
O dominant trait
O sex-linked trait
O codominant trait
Answers
1)What sex chromosome is carried by the egg?
2)What sex chromosome is carried by the sperm?
3)How many XX chromosomes are produced in the cross?
4)How many XY chromosomes are produced in the cross?
5)What is the probability of having a male offspring?
6)What is the probability of having a female offspring?
Answers
Answer:
the female has the x
the male has the x and the y.
2
1
50%male
50%female
Explanation:
Which of the images below depicts a healthy reef ecosystem?
Image A, B, C, or D?
Answers
Answer:
A is the answer i think because it has more reef
8b. Which of these modes of transmission require a bodily opening, either naturally or artificial?
Answers
Answer:
blood borne and sexual
Explanation:
during sexual intercourse fluids are transmitted naturally from one partner to the other when one has a cut on the skin he/she is likely to contract diseases when the cut is exposed to the blood of another personNerve cells are called
A. neurocytes
B. neurons
C. prokaryotes
D. white nerve cells
Answers
Answer:
It's B ( nerve cells are called neurons ).
Answer:
B. neurons
Explanation:
Nerve cells are known as neurons. So option (B) is the correct answer.
Please help meeeeeeeeeeeewwwww
Answers
Answer:
ok
Explanation:
yes
Answer:
i dont know
Explanation:
In fruit flies, long wings are a dominant trait (L) and short wings are a recessive trait (l). Two fruit flies that are heterozygous for the long wings trait mate. The cross produces 180 offspring. How many of the offspring are expected to have short wings?
Answers
Answer:
45
Explanation:
Both parents are hetero-zygous, so each has alleles Ll.
When Ll crosses with Ll, we have
LL 25%
Ll 50%
ll 25%
So out of 180 offspring, we expect about 25% to have short wings, or
25%*180 = 45
Name 4 way energy can be
transferred in a cell (4)
Answers
Answer:
Mechanically - By the action of a force.
Electrically - By an electrical current.
By radiation - By Light waves or Sound waves.
By heating - By conduction, convection or radiation.
Explanation:
Answer:
When energy in a battery is used to power an electronic device, chemical energy is transformed into electrical energy, which moves along wires. Three more ways energy can be transferred are through light, sound, and heat.
Explanation:
Please Mark me brainlist
Energy and nutrients both move through food chains. They are different, however, because nutrients are 1. lost to the atmosphere 2. recycled 3. used up 4. all of these anwers are correct
Answers
1- Which processes are fast in the carbon cycle?
2- Which processes are slow in the carbon cycle?
HELP PLEASE.
Answers
Answer:
Photosynthesis: the absorption of CO2 from the atmosphere (terrestrial plants) and from oceans (marine plants) to produce organic carbon structures.
Respiration: the release of CO2 into the atmosphere, soil and oceans by animals as they exhale.
Phase 4 of the graph of population growth is most likely due to
A. Competition from invasive species
B. Adequate food and space
C. A high natural birth rate
D. Disease resistance
Answers
Answer:
c. A high natural birth rate
Which best describes a gene?
the short arm of a chromosome
tightly coiled strands of DNA
the center of a chromosome
a segment of chromosomal DNA
Answers
Answer:
A gene is a segment of a DNA strand.
Answer: a segment of chromosomal dna
Explanation:
Where are producers located on the energy pyramid?
Answers
Answer:
At the beginning of the pyramid
Answer:
At the ground state.
explanation:
What are two ways that meiosis contributes to genetic variation? How do these two ways lead to variation?
Answers
Answer:
During prophase of meiosis I, the double-chromatid homologous pairs of chromosomes cross over with each other and often exchange chromosome segments. This recombination creates genetic diversity by allowing genes from each parent to intermix, resulting in chromosomes with a different genetic complement.Hope this is fine for you!!Match the terms to their definition.
the number of individual organisms born into a population in a given year
the movement of individuals out of a population
the number of individual organisms that die in a population in a given year
the movement of individuals into a population
DO NE
Answers
Answer:
the number of individual organisms born into a population in a given year - birthrate
the movement of individuals out of a population- migration
