Answer:
Natural selection can lead to speciation, where one species gives rise to a new and distinctly different species.
Explanation:
Through this process of natural selection, favorable traits are transmitted through generations. It is one of the processes that drives evolution and helps to explain the diversity of life on Earth.
please I need help !
Answer:
I think D.) More cobs on plants
Explanation:
If it ain D then it's C
This serves as a quick energy source.
a. carbohydrate.
b. nucleic acid
c. lipid.
d. protein.
Deposition builds up new landforms everyday?
A tall pea plant with red flowers has the genotype TtRr. This plant is crossed with another tall pea plant with white flowers, having the genotype Ttrr. What is the probability of getting dwarf plants with red flowers in the F1 progeny
Answer:
1/8 or 12.5%
Explanation:
This question involves two genes coding for height and flower color in pea plant. The alleles for tallness (T) and red flowers (R) are dominant over the alleles of short (t) and white flowers (r).
According to this question, a tall pea plant with red flowers (TtRr) is crossed with another tall pea plant with white flowers (Ttrr). The following gametes is produced by each parent:
TtRr - TR, Tr, tR and tr
Ttrr - Tr, Tr, tr and TR
Using these gametes in a punnet square (see attached image), the following proportion of F1 offsprings will be produced as follows:
Tall, Red (T_R_) = 6
Tall, white (T_rr) = 6
Dwarf, red (ttR_) = 2
Dwarf, white (ttrr) = 2
The probability of getting dwarf plants with red flowers in the F1 progeny is 1/8 or 12.5%.
Answer:
12.5
Explanation:
got it correct on test
Which of the following is most likely responsible for the fact that organic molecules no longer formed spontaneously on Earth?
A. The amount of UV radiation increased
B. The amount of oxygen in the atmosphere increased
C. Water accumulated in the oceans
D. Earth's surface temperature warmed
Answer:
b
Explanation:
oxygen in air
and atmosphere
help please, i am confused
Answer:
a. acquired trait
b. adaptation (inherited trait)
c. adaptation (inherited trait)
d. acquired trait
what kind of cell has many orgins of replication
Answer:
Assembled replisomes bidirectionally replicate DNA to yield two copies of the bacterial chromosome. B) Linear eukaryotic chromosomes contain many replication origins. I
Answer:
eukaryotic chromosomes
Explanation:
Prokaryotic chromosomes have a single source of replication whereas numerous sources of eukaryotic chromosomes. Since eukaryotic chromosomes are much larger, many outlets are required for the whole chromosome to be repeated within a limited period of time.
A replication root is a segment of DNA in which a gene, plasmid or virus is repeated.
Add a brown eyes cross in the Punnett Square below for practice: Mother genotype (Bb) in the top squares, father genotype (Bb) in left side squares. B B. I b
Answer:
My answer is the genotypes are BB, Bb, Bb, and bb.
Explanation:
I attached a photo of the punnet square after crossing the genotypes Bb and Bb. Crossing the B on top with the B on the side results in the genotype BB. Crossing the b on top with the B on the side results in Bb. The genotype that results is written in the box that connects the row and the column (such as top row and left column results in BB).
In a cross Bb x Bb (B = Blue petals and b = pink petals), how many offspring will have the genotype Bb?
Answer:
2 offspring will have the genotype Bb.
Explanation:
Crossing the genotypes Bb and Bb results in 2, or 50% of the offspring having the genotype Bb. In the top right box, the B on the top and the B on the side make the BB genotype. In the top left box, B and b make the first Bb genotype. The lower right box crosses B and b to make the second Bb genotype. The last box in the bottom right crosses b and b, resulting in the genotype bb. So, after crossing the genotypes written on the top and side of the punnet square, 2 of the offspring will have the Bb genotype. (I got this by combining the letters outside the punnet square in the box where the row and column meet) .
Mitosis leads to which of the following?
A. Eggs or sperm
B. No diversity in the offspring
C. Four daughter cells
D. Cells with 23 chromosomes
What poisonous chemical is used to separate the gold from the waste material?|
32 POINTS!!
help a sister out plz
Phosphorus (P) is the element with the atomic number 15. Which of the
following correctly compares 31 and 32p, which are two isotopes of
phosphorus?
A. Both isotopes contain 15 protons.
B. 31P has 30 protons, whereas 32P has 31 protons.
c. 31P has 31 neutrons, whereas 32p has 32 neutrons.
D. Both isotopes contain 17 neutrons.
Answer: A both isotopes contain 15 protons.
Explanation:
Can someone plzzz help!!
Answer:
Explanation:
1 (Can have a DNA genome) both
2 (Not made of cells) virus
3 (Protein coat instead of membrane) virus
4 living organisms
5 both
6 living organisms
Which sequence correctly indicates the branching pattern of the human respiratory system?
A) trachea bronchi bronchioles alveoli
B) trachea bronchioles bronchi alveoli
C) alveoli trachea bronchioles bronchi
D) alveoli bronchioles trachea bronchi
Answer:
A
Explanation:
The system including tissues and organs needed for breathing and exchanging gases is called the respiratory system. It is essential for providing fresh air and eliminating the waste air from the body.
The branching pattern of the human respiratory system includes option A) trachea bronchi bronchioles and alveoli.
The Respiratory system can be explained as:The respiratory system includes the major organ lungs which along with some other tissues makes up the whole system. The trachea gets diverged into two branches named bronchi which further splits into lungs called bronchioles.The bronchioles spread throughout the lungs and have a sac-like small structure on its end called alveoli where the exchange of gases takes place.Therefore, option A is the correct sequence of respiratory branching.
Learn more about the respiratory system here:
https://brainly.com/question/1621897
How is active transport different from simple diffusion and facilitated diffusion?
Answer:
Active transport is when substances move against the concentration gradient and go from low to high. Diffusion is when substances move with the concentration gradient and go from high to low.
Explanation:
Explain how DNA results in the expression of a gene using the following words: DNA, mRNA, tRNA, gene, transcription, and translation
Explanation:
in order for a gene to even be transcribed, it must be "turned on" or "expressed" meaning the nucleotides have moved away from each other. after it's expressed, the gene will unwrap and continue on with transcription, and make mRNA copy of a DNA strand. once RNA is made it will leave nucleus and enter cytoplasm to find a ribosome. once it attaches to ribosome, translation begins, and a tRNA will bind to anti-codon, and the building of a polypeptide/protein will begin.
An atom has 10 protons, 11 neutrons, and 9 electrons. What is the charge of this atom?
A) 0 or neutral
B) +1
C) -1
D) -2
Answer:
A
Explanation:
The four tenants of evolution by natural selection
Answer:
variation, inheritance, selection and time
Explanation:
Name two types of pathways that help a body maintain homeostasis, and an example of each.
Answer:
Explanation:
The cardiovascular and lymphatic systems transport fluids throughout the body and help sense both solute and water levels and regulate pressure. If the water level gets too high, the urinary system produces more dilute urine (urine with a higher water content) to help eliminate the excess water.
Answer:
The receptor and afferent pathway are pathways that help the body stay n homeostasis. An example of the receptor is like temperatures in your skin. An example of Afferent pathways are sensory neutrons.
Explanation:
what is the relationship between the cell membrane and cystic fibrosis?
Answer:
The CFTR gene provides instructions for making a protein called the cystic fibrosis transmembrane conductance regulator. This protein functions as a channel across the membrane of cells that produce mucus, sweat, saliva, tears, and digestive enzymes.
HOPE THIS HELPS
first to get it right gets brainiest
you are in a one story house everything is blue what color are the stairs
If the house is one story then there are no stairs unless there is either a an basement or b an attic
each codon codes for an
Answer:
An amino acid.
Explanation:
Each codon applies to an individual amino acid.
Answer:
Each codon corresponds to a single amino acid (or stop signal), and the full set of codons is called the genetic code. The genetic code includes 64 possible permutations, or combinations, of three-letter nucleotide sequences that can be made from the four nucleotides.
Explanation:
Calico cats are almost always female because the gene for coat color is
carried on the X chromosome. The Y chromosome in cats has no color
gene. Explain how a calico cat might be a male. *
Answer:In rare cases, a male cat can inherit two X chromosomes in addition to his Y chromosome (Klinefelter Syndrome). ... If the two X chromosomes do not carry the same allele (i.e., the cat's genotype is XBXbY), then the male will express calico coloration, just as a female would.
how does parasitism differ from other symbiotic relationships?? (please help of you know it )
Answer:
Symbiosis is when one creature benefits while the other is unaffected. Parasitism is when one creature benefits while the other is harmed.
Explanation:
Think of parasites. They feed off of other creatures and harm them in the process. Symbiosis is similar, but neither creature is harmed.
where does the energy for active transport come from
Answer:
Active transport is a process that is required to move molecules against a concentration gradient. The process requires energy. Energy for the process is acquired from the breakdown of glucose using oxygen in aerobic respiration. ATP is produced during respiration and releases the energy for active transport.
I hope it's helpful!
What color marble represent the female chromosomes?
Answer:
it is colour less their is no colour ...
Explain how waves eventually even out a shortline?
Answer:
They expend all their energy overtime
Explanation:
What are some Characteristics of a ladybug after metamorphosis
Answer:
Ladybug physical characteristics
The ladybug has an oval-shaped body, six legs, two antennae, a head with two eyes, a thorax that is called a pronotum, and an abdomen (the part of the body that is covered by the elytra). When the pupa hatches as a new adult ladybug, it doesn't have any spots yet and its elytra are wet, soft, and pale colored.
Answer:
.
Explanation:
The ladybug has an oval shaped body, six legs, two antennae, a head with two eyes, a thorax that is called a pronotum, and an abdomen, the part of the body that is covered by the elytra. When the pupa hatches as a new adult ladybug, it doesn't have spots yet and its elytra are wet, soft, and pale colored.
Help thank you please
Answer:
It's C
Explanation:
are chemicals that are know to cause canser
Answer:
microwave
Explanation:
Answer:
microvave
Explanation:
