Which of these is an example of water pollution?
A. An eroded hillside
B. A clear-cut forest
C. Arid land
D. Agricultural runoff
Answer:
D. Agricultural runoff
Explanation:
Why are molecular clocks important in the construction of cladograms? They compare the frequency of reproduction to determine which traits evolved through mutations. They compare the genes inherited by a species to determine descendants. They compare the number of mutations to determine how long ago species separated and evolved.
Answer: They compare the number of mutations to determine how long ago species separated and evolved.
You're welcome!
Answer:
C.They compare the number of mutations to determine how long ago species separated and evolved.
Explanation:
this is correct
Mrs. Smith has blood type A. Mr. Smith has blood type B. Their first child has blood type AB. Their second child has blood type O. Now is Mr. Smith justified? What are Mr. and Mrs. Smith’s genotypes for these two genes?
the only possibilities for the childrens genotypes are; A and AB, so the fact that the child has a blood type of O isn't possible
The genotypes of Mrs. Smith and Mr. Smith are AO and BO, respectively. Therefore, the blood group of the offspring will be A, B, AB, and O.
What is Genotype?Genotype is the genetic makeup of an organism. Genotype refers to the alleles which are present in an organism.
ABO blood group shows multiple allelism which means it has more than two alleles which are A, B, and O. A and B alleles show co-dominance and O allele is recessive allele.
As per the information, Mrs. Smith has blood type A (genotype of Mrs. Smith could be AA/AO), and Mr. Smith has a blood group B (genotype could be BB/BO).
The blood group of the first child produced is AB. So, the genotype of this child is AB only. And, the blood group of their second child is O which is recessive. So, the genotype of the child will be OO only (homozygous).
Therefore, the genotype of the parents Mrs. Smith and Mr. Smith for their children to have blood group AB and O must be AO and BO only.
The punnett square is attached with the answer.
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is this karyotype from a male or female? how do you know ?
Also do they have down syndrome? How?
Answer:
Its a male, without down syndrome
Explanation:
The fact that it's a male is indicated from the presence of the Y chromosome. In order for this man to have down syndrome, he would have had 3 chromosomes at 21, which he doesnt, meaning he doesnt have down.
Unrelated or distantly related species may come to resemble each other due to what
Examples of Biotic factors include
A) grass, flowers, and sunlight
B) grass, trees, bees, and ants
C) Grass, trees, soul, and water.
D) All of the above
Which biomes would be found nearest to the equator?
tropical rain forests and savannas
tundras and taigas
tropical rain forests and taigas
tundras and savannas
Answer:
Tropical rain forests and savannas
Explanation:
Tundras are found at the north and south poles. Taigas are found in the northern areas but not near the equator.
Answer:
Tropical Rain Forests and Savannas!
Explanation:
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Viruses can be prevented by receiving a weakened form of the virus called a?
A)plastid
B)vaccine
C)antibiotic
D)fertilizer
Water that reaches the ground and moves horizontally towards rivers, streams, and lakes is called runoff.
A. True
B. False
Answer:
A. True
Explanation:
flow off a hill slope directly to a stream in the form of runoff, or it may flows downward through the unsaturated zone to reach the water table. The area at the stream or lake to which the groundwater is flowing. Recall that water is flowing in pores where there is friction, which means it takes work to move the water.
A population with a growth rate equal to
zero is
A. stable
B. gaining members
C. increasing in size
D. decreasing in size
energy is stored during photosynthesis. true or false
Someone please help me !
Answer:
A
Explanation:
What is this person male or female? Why?
(There’s only one x btw) :l
Answer:
I think it's a girl since there is only one X
hope this helps
have a good day :)
Explanation:
Which of the following will increase the acceleration of an object that is pushed by force?
a. decreasing the mass of the object
b. increasing the mass of the object
c. increasing the force pushing the object
d. Both (a) and (c)
Who ever Answer this right will get brainliest
Answer:
See Explanation
Explanation:
Pathogens are disease causing organisms in the body. They attack diverse cells, organs, tissues and systems in the body thereby causing them to malfunction (to become diseased).
Antibodies are the body's natural protective mechanism against pathogens. Antibodies engulf these pathogens and digest them. Then they produce certain chemicals called antitoxins which now destroy the toxins produced by these pathogens in the body.
Also they activate the systems involved in fighting pathogens by punching the cell wall of invading pathogens.
Question 2 of 25 Which feature of a balanced chemical equation demonstrates the law of conservation of mass? A. It shows the reactants of a chemical reaction to the left of the reaction arrow. B. It has the same types of atoms on both sides of the reaction arrow. C. It has coefficients to show how much of each substance a chemical reaction uses. D. It shows the products of a chemical reaction to the right of the reaction arrow
Answer:
b or c
Explanation:
I can't tell
blc
b.tells more like mass after reaction and before reaction are same blc atoms are equal
more like b
Answer: B. It has the same types of atoms on both sides of the reaction arrow.
If two parents have type O blood, what are the possible blood types of their children?
Answer:
O
Explanation:
It would be type O, because both parents have type O. Whether it was positive (+) or negative (-) would depend on both parents.
how are the new strands of DNA lengthened
Explanation:
New strands of DNA are lengthened by adding new nucleotides at the replication fork.
These methods primarily involve DNA synthesis techniques, such as polymerase chain reaction (PCR) and DNA sequencing methods. However, it's important to note that scientific advancements may have occurred since my knowledge cutoff, and there could be new techniques or technologies available.
PCR is a widely used technique that allows for the amplification of specific DNA sequences. It involves a series of heating and cooling cycles, which enable the DNA to denature (separate into single strands) and then be replicated using a DNA polymerase enzyme. By repeating this process, multiple copies of the DNA sequence of interest can be generated.
DNA synthesis involves the chemical synthesis of custom DNA sequences in the laboratory. This process typically employs a method called phosphoramidite chemistry. It starts with a DNA template strand and adds nucleotides one by one, using chemical reactions to build the new DNA strand. This method allows for the controlled synthesis of long DNA strands with specific sequences.
Modern DNA sequencing technologies, such as next-generation sequencing (NGS), can indirectly contribute to DNA lengthening. During the sequencing process, DNA strands are often amplified and replicated to generate sufficient material for analysis. This amplification step can result in the lengthening of DNA strands.
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Which of these structures are found in plant cells but not animal cells?
1. Cell membrane
2. Cell wall
3. Chloroplasts
4. Mitochondria
1 and 4
2 and 3
3 and 4
1 and 2
Answer:
the answer for your question is 3 and 4
I need help please I’m on the last question on my ixl and I don’t want to mess up
Answer:
top one is mountain range
Explanation: I think
the bottom one is Continental crust
Please Help brainiest for correctt and first answer
Answer:
B: to break down sugar and release...
Explanation:
Mitochondria is the powerhouse of the cell! It breaks down sugar that comes into the cell and releases it back into the cell as energy
Which does NOT define a situation as a crisis?
a.The situation creates a hardship.
b.You don't have the resources needed to deal with the situation.
c.You feel overwhelmed or helpless to handle the situation.
d.The situation is annoying because it causes you to not have something that you want.
The first land battle of the Civil War was fought at a Gettysburg b Bull Run c Antietam d Shiloh
Answer: Gettysburg
Explanation:
mushroom can only be found in dark places . why ?
Answer:
advantage of growing mushrooms in the dark is that darkness preserves the moisture that mushrooms spores need to reproduc
Please help i am giving away brainiliest
Describe the Lysogenic cycle.
No dam links
Answer:
Here ya go
Explanation:
The lysogenic cycle, is one of two cycles of viral reproduction. Lysogeny is characterized by integration of the bacteriophage nucleic acid into the host bacterium's genome or formation of a circular replicon in the bacterial cytoplasm. In some interactions between lysogenic phages and bacteria, the lysogenic conversion may occur, which can also be called phage conversion.
5 minitessssssssssss
Answer:
The answer is A.
Bacteria, which are prokaryotic cells are single-celled entities that are primitive in structure and function as they lack a membrane-bound nucleus and other organelles.
Eukaryotic cells are the cells that are complex in structure and function as they have a membrane-bound well-defined nucleus and other membrane-bound organelles.
REPLY ASAP what's the main function of red blood cells, white blood cells, platelet and plasma?
Answer:
carries the blood components throughout the body
Explanation:
plasma is the largest part of your blood.
If some bacteria are resistant to tetracycline and some are not resistant, what happens when a patient is given tetracycline for an infection?
Answer:
Antibiotic resistance happens when germs like bacteria and fungi develop the ability to defeat the drugs designed to kill them. That means the germs are not killed and continue to grow. Infections caused by antibiotic-resistant germs are difficult, and sometimes impossible, to treat.
Explanation:
hope this helps:)
Please help.................
Answer:
C i think.......................................
not all words are used.
will mark brainliest if correct.
Answer:
I D K
Explanation:
I just wasted 10 minutes on this and I am so confused:)
