Answer:
New species form when individuals from diverging populations no longer recognize one another as potential mates, or opportunities for mating become limited by differences in habitat use or reproductive schedules.
Explanation:
Cross two heterozygous black mice and tell the possible phenotypes and
genotypes in their offspring.
Answer:
The correct answer is -
Phenotype: 3:1 (dominant black mice: recessive brown allele)
genotype: 1:2:1 (purebred dominant : heterozygous: purebred recessive)
Explanation:
In the given question there is a cross that takes place between two heterozygous black mice. LEt assumes B is black which is the dominant allele and b is the recessive allele or brown. As it is given in heterozygous condition black mice are present which means the B is dominant over b.
Now cross:
Gametes: B and b for each mice
B b
B BB Bb
b Bb bb
By the cross, there are two phenotypic offspring that produce 3 black mice out of four and 1 brown or recessive allele out of four
And, genotypically three offspring in the ratio of 1:2:1 (purebred dominant : heterozygous: purebred recessive)
. The small fish are not affected by the pesticide, but death occurs in the bird, at the top of the food chain. Why do you think that happens?
which of the following is an example of positive feedback?
Answer:
uuh theres not an example please comment under this post to me the options
Explanation:
What are some benefits to evolutionary adaptations?
Answer:
1.A new species
2.Adding to world population
3.More to learn
Explanation:
HELP ITS DUE RIGHT NOW PLEASE !!!
PLS ANSSWER
A group of plant eating animals moves far away from their original population. In the new environment, the only edible vegetation grows at the top of tall trees. In order to survive, the animals need a new adaptation. Which of the following variations would be the most useful new adaptation to members of the group?
A) Wider, flatter teeth that can chew and grind plant material.
B) A longer neck to reach the vegetation that is high up in the trees.
C) A better digestive system for breaking down plant material.
D) Larger ears and eyes located on sides of head to detect predators.
Answer:
B
Explanation:
The others would not help because the animals could not reach the vegetation.
PLEASE SOMEONE HELP I’ll help back pls!!
Nerve labeling help meee plsss
Answer:
(1) Synaptic Vesicle
(2) Vesicle Releasing Neurotransmitter
(3) Axon Membrane
(4) neurotransmitter
(5) Synaptic Cleft
(6) Postsynaptic Neurotransmitter Receptors
Explanation:
Replicate the following DNA sequence CCC
Answer:
GGG
Explanation:
Use AT GC to replicate DNA sequence
How will water volume, incline gradient, and temperature affect the energy
of a stream?
Answer: Water Volume: The volume of water(discharge) in a stream affects the energy(velocity) of that stream. As the volume of the water in the stream increases, the velocity increases. ... Incline gradient: The incline gradient is also known as the slope of the stream.
Explanation:
To move the objective lens up and down, I would turn the _________ __________ dial. Which two words complete the sentence? ps: i gave 100 points so answer
Answer:
knob and the dial are the words
How does a bird develop?
Answer:
All birds start their lives inside an egg. When some birds hatch from the egg they are covered in downy feathers, and they are able to run around and find their own food. Many ground-living birds, such as pheasants and ducks, develop in this way.
ILL GIVE BRAINLIEST!!!
please answer!
____ are unicellular organisms with no nucleus that can cause diseases and pain with toxins.
word bank: protists, antibiotics, infectious, bacteria, pathogen, viruses, fungi, vector, vaccine.
Which characteristics do birds and mammals share? Check all that apply.
Both give birth to live young.
Both are endotherms.
Both have hair or fur.
Both produce milk to feed their young.
Both are vertebrates.
Answer:
B). Both are endotherms
Explanation:
Both birds and mammals are warm-blooded, which is the meaning of endotherm.
Hope this helps!
~PurpleMist
Answer: B
Explanation: brainlest
Cross two heterozygous black mice and tell the possible phenotypes and
genotypes in their offspring.
Answer:
Phenotype: 3 black mice: 1 brown mice
Genotype: 1 BB: 2Bb: 1bb
Explanation:
This question involves a single gene coding for fur color in mice. The allele for black color (B) is dominant over the allele for brown mice (b). This means that a mouse that is heterozygous will be black.
If two heterozygous black parents are crossed i.e Bb × Bb, the gametes produced by each parent are: B and b. Using these gametes in a punnet square (see attached image), the following offsprings will be produced:
BB, Bb, Bb, and bb
- The phenotypes of this cross is 3 black mice: 1 brown mice
- The genotypes of the cross is 1 BB: 2Bb: 1bb
( PLEASE HELP NEED A REAL ANSWER! )
Individuals with advantageous traits for their environment have a better chance of surviving
than those with less helpful traits. Explain how this is demonstrated in the moth information
above. Use specific information and examples.
Answer:
The moths with darker coloring lived long enough to reproduce and passed the trait on. The light peppered moths were easier for predators to spot on the dark soot covered trees so they died first.
Explanation:
Choose all the answers that apply.
Chromosomes _____.
are tight coils of DNA
are carried on genes
always occur in pairs
can be analyzed in a karyotype
carry thousands of genes
Answer:
are tight coils of DNA
carry thousands of genes
Explanation:
Answer:
1,5
Explanation:
Pls can someone help me out by answering these
Answer:
the diagram is not clear enough.
Answer:
A,C,D
Explanation:
SOMEONE PLEASE HELP ME!! THANK YOU!
Ignore the draw arrow thing :)
A helpful shortcut our brain makes in scene recognition is to assume that lighting comes from:
Answer: A. Above
Explanation:
Scientists believe that in order for humans to see things, the brain has to make certain assumptions which are done based on previous scenes that it has interpreted before because the eyes do not provide it with complete data. .
One of those assumptions is that light comes from above which is why the shape of a picture can change depending on the lighting in it.
Name Cu2(SO4)3 (transition metal).
Answer:
Cooper sulphate
Explanation:
I think soooo
What do variations create?
Variations in species help them to adapt themselves to that particular environment and give them a chance of survival. For example, thermophilic bacteria are variants that are resistant to extreme temperature. They have a chance of survival in high temperate zones while others die.
NS
What are magnetic field lines?
A. Lines that show the shape of a
magnetic field
B. Lines that show the path of electrons
C. Lines that show aligned atoms
Answer:
A
Explanation:
Magnetic field lines are a visual tool used to represent magnetic fields. They describe the direction of the magnetic force on a north monopole at any given position. The density of the lines indicates the magnitude of the field.
Large cells have more volume on the inside and less space on the outside. (Compared to a smaller cell) Because of this, large cells have trouble;
A) dividing
B) producing daughter cells
C) moving materials in and waste products out
D) making copies of their DNA
Heeeeeellppp plzzzz
Answer:
C. They have trouble moving materials in and waste products out
your skin is made up of two layers the epidermis and the dermis. The epidermis produces an oily protein that repels water. When you soak in the bathtub for a long time or Swim for a long time the protein is sloughed off. As a result, your skin cells begin to swell from the excess water and they look wrinkled.
what type of transport is this?
A.)Isotonic
B.)Hypertonic
C.)Hydrotonic
D.)Hypotonic
can someone pleasee answer thiiisss pleasee
Answer:
Hi how are you doing today Jasmine
Weather balloons are sent into the atmosphere to record: (Select all that apply)
humidity
temperature
wind
pressure
precipitation
Answer:
temperature pressure moisture
Explanation:
From my notes hope this helps.
Answer:
temperature pressure moisture
Explanation: