1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Harman [31]
3 years ago
8

Seafloor spreading is a process that occurs on a ________________________ boundary.

Biology
1 answer:
kipiarov [429]3 years ago
7 0

Answer:

The answer is B.

You might be interested in
If you found a fossilized dinosaur bone, what method could be used to determine the age of the fossil?
allochka39001 [22]

Answer:

Radiometric dating for the analysis of isotopes in the fossil.

Explanation:

Radiometric dating can be used to determine the precise age of a fossil by measuring isotoped decay within tge fossil or the surrounding rock in contact with it.

6 0
3 years ago
Read 2 more answers
On the planet Kermit, in the Muppet population, there are two autosomal loci of interest. The first locus has alleles A and a, a
astra-53 [7]

Answer:

The values that most closely represent the expected number of Janice blonde-haired offspring is 252 individuals, option C.

Explanation:

<u>Available data</u>:

  • Two diallelic genes acting in a recessive epistatic manner to express hair color
  • Allele A is dominant over the allele a
  • Allele B is dominant over the allele b
  • A_B_ Cookie monster blue
  • aaB_ Elmo red
  • __bb Janice blonde

When talking about epistasis, we are referring to an interruption. These are interactions between genes located in different loci in the same chromosome. An epistatic gene can alter, influence, or suppress the expression of a hypostatic gene. When the epistatic gene is recessive, the interaction is known as <u>recessive epistasis</u>.  

Observing the altered phenotype proportions of the offspring can reveal which interaction is operating in the trait determination.  

In recessive epistasis, the proportion is 9:3:4.

Cross: Between two doubly-heterozygous

Parentals) AaBb    x    AaBb

Phenotype) Cookie-monster blue-haired individuals

Gametes)  AB, Ab, aB, ab

                 AB, Ab, aB, ab

Punnett square)     AB       Ab        aB         ab

                 AB      AABB    AABb  AaBB    AaBB

                 Ab      AABb    AAbb   AaBb    Aabb

                  aB     AaBB     AaBb   aaBB    aaBb

                  ab     AaBb      Aabb   aaBb    aabb

F1) 1000 individuals

     9/16 individuals are expected to be Cookie-monster blue-haired, A-B-

     3/16 individuals are expected to be Elmo Red, aaB-

     4/16 individuals are expected to be Janice blond, A-bb + aabb

16 ------------------------------------------- 1000 individuals

4 Janice blond individuals ---------- X = 250 individuals

So, 250 individuals are expected to be Janice blonde. The observed number might vary a little bit from this value.  The values that most closely represent the expected number of Janice blonde-haired offspring is c = 252 individuals

5 0
3 years ago
What type of rock can melt under the right conditions?
Sever21 [200]
To tell you the truth, all rocks can melt under heat and pressure. For example, if a volcano erupts, the magma that is flowing can melt the rocks because of extreme heat.
6 0
3 years ago
Calculate the average metabolic rate of a 65-kg person who sleeps 8.0h, sits at a desk 6.0h, engages in light activity 6.0h, wat
Anna35 [415]

Calculate the average metabolic rate of a 65-kg person who sleeps 8.0h, sits at a desk 6.0h, engages in light activity 6.0h, watches TV 2.0h, plays tennis 1.5 h, and runs 0.50h daily, If the metabolic rate for sleeping is 70 J/s, for sitting is 115 J/s, for engage in light activity is 230 J/s, for watching TV is 115 J/s, for playing tennis is 460J/s and for running is 1150 J/s.

Answer:

171.8 W

Explanation:

The Average metabolic rate can be deduced by multiplying each entity performed at a some particular hour of time with their corresponding energy, all divided by 24 hours.

Average metabolic rate = \frac{(8.0*70)(6.0*115)(6.0*230)(2.0*115)(1.5*460)(0.5*1150)}{24}

                                        = 171.8 W

4 0
3 years ago
A depolarizing synaptic potential is also known as _______. a depolarizing synaptic potential is also known as _______. an excit
Nataly_w [17]
<span>Postsynaptic potentials are changes in the membrane potential of postsynaptic terminal. A depolarizing synaptic potential is also known as an excitatory postsynaptic potential. it is the synaptic potential that makes postsynaptic neuron likely to fire an action potential. Postsynaptic neuron is of two forms excitatory and inhibitory.</span>
4 0
3 years ago
Other questions:
  • BRAINLIESTTTT ASAP!!<br><br> How do seasons compare in the northern and southern hemispheres?
    5·2 answers
  • What happens to the frequency when the
    15·1 answer
  • Which feature is characteristic of healthy coral reefs?
    14·2 answers
  • Why does biodiversity matter?
    7·1 answer
  • Does all dna code for protein?
    15·1 answer
  • Species A became extinct about 200,000 years before Species B evolved. Both species lived in the same location. In which arrange
    7·2 answers
  • There are two changes that a substance can undergo that may either be physical changes or chemical changes (depending on the oth
    5·1 answer
  • Why do scientists classify organisms?
    7·1 answer
  • The rapid speciation of mammals as a result of the availability of new habitat due to the extinction of the dinosaurs 65 million
    6·1 answer
  • Which of the following is a natural resource that could be used up someday?
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!