Answer: basalt, with a density of 3.0 g/cm^3
Explanation:
Earth's crystal bedrock on the Mid-Atlantic Ridge consists typically of basalt, with a density of 2.7 g/cm3.
What is Mid-Atlantic Ridge?A petrographic have a look at of rocks dredged from the Mid-Atlantic Ridge via way of means of the studies vessel, Atlantis, in 1947 and 1948 suggests that olivine basalt and basalt are the maximum not unusualplace rock kinds of the Mid-Atlantic Ridge.
If magma cools quickly, as an example whilst basalt lava erupts from a volcano, then many crystals shape very quickly, and the ensuing rock is fine-grained, with crystals commonly much less than 1mm in size.
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There are three alleles for the ABO blood group in humans. Why are there only two alleles normally present in any individual?
1. The alleles for the ABO blood group always segregate independently during meiosis.
2. Each parent contributes only one allele for the ABO blood group to the offspring
3. Every gene for the ABO blood group must be recessive.
4. The alleles that determine the ABO blood group are on the X-chromosome.
Answer:
2. Each parent contributes only one allele for the ABO blood group to the offspring
Explanation:
Humans are diploid organisms, which means that our cells have two copies of the same gene. These copies are called alleles. We inherit one allele from each parent.
Just like most of our traits, we inherit our blood group from our parents. There are three alleles that determine our blood group: A, B, and O. We can get only two of them, though. Whether our blood group is A, B, AB, or O will depend on the combination of the alleles we inherited.
Which of the following best explains the most likely method by which this antitumor drug works
Number of Differences Pair of Species 2 Porpoise and S. Whale 3 Deer and Giraffe 3 Porpoise and Rt. Whale 3 Hippo and Porpoise 3 Hippo and S. Whale 3 Cow and Giraffe 3 S. Whale and Rt. Whale 4 Hippo and Rt. Whale 4 Deer and Cow Please answer the following questions in complete sentences. 2. Which 4 species are found in all possible combinations with each other
Answer:
The correct answer is - Porpoise, Sperm, Whale, Rt. Whale, and Hippo.
Explanation:
In the question the following combinations are given of the various species with only 2-4 differences in their DNA:
2 Porpoise - Sperm Whale
3 Sperm Whale - Rt. Whale
3 Porpoise - Rt. Whale
3 Hippo - Sperm Whale
3 Hippo - Porpoise
3 Cow - Giraffe
3 Deer - Giraffe
4 Hippo - Rt. Whale
4 Deer - Cow
Here numbers represent the differences in their DNA and on the basis of this combination we can say that Porpoise, Sperm, Whale, Rt. Whale, and Hippo found in all possible combinations with one another. It also tells that all these species diverged from the common ancestor.
How could you decrease the amount of energy an object has?
The amount of energy that an object has can be decreased by decreasing its temperature.
Let us recall that the temperature of a body is a measure of the average kinetic energy of the molecules of the body. The molecules in a body are always in constant random motion.
The kinetic energy possessed by the body is dependent on its temperature. To control the amount of energy that an object has, we either increase or decrease its temperature.
If we want the amount of energy that an object has to decrease, we simply decrease its temperature.
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A particular triplet of bases in the coding strand of DNA is 5'-CGT-3: Which of
the following is the anticodon component of the tRNA that binds the mRNA
codon transcribed from this DNA?
A3 AGUS
B. 3 - UGG - 5
CDA5
DOS
Since in RNA Cytosine(C) binds with guanine(G) and thymine(T) binds with adenine(T) the anticodon for
the mRNA codon is GCA
the tRNA anticodon is CGU
Study the image of the plant shown.
Which best describes the plant?
vascular because it has spores
vascular because it has true roots
nonvascular because it has spores
nonvascular because it has true roots
Spores
harro
True roots
Answer:
It is vascular because it has true roots.
Explanation:
Vascular plants evolved true roots made of vascular tissues. Compared with rhizoids, roots can absorb more water and minerals from the soil. They also anchor plants securely in the ground, so plants can grow larger without toppling over.
Answer:
It's B
Explanation:
please answer quick and honestly, will choose brainliest. 16 points
How can you use isobars to determine approximate wind speed and direction using the pressure map?
Answer:
Since variations in air pressure drive the winds on Earth, isobars also give meteorologists an easy way to assess wind direction and speed. Closely spaced isobars indicate large pressure changes over a small area, causing wind speeds to increase.
Hope this helped! :}
What is the background extinction rate? Why is it rising?
Why do healthy people get stronger
Answer:The heart isn't the only muscle to benefit from regular exercise. The other muscles in your body enjoy exercise too.
Explanation:When you use your muscles, they become stronger. Strong muscles are also a plus because they support your joints and help prevent injuries
Applying Osmosis
On the inside of a cell, it is 75% water and 25% salt. On the outside of the cell it is 60% water, 40% salt.
A. Will water move into or out of the cell?
B. Will the cell shrink or will it swell?
C. Is the solution outside of the cell hypertonic or hypotonic?
Please help me with this! I will mark the right answer brainliest!
Answer:
a. Water will move out of the cell
b. Shrink
c. Hypertonic solution
Explanation:
a. The scenario given shows that there is greater concentration of solutes outside the cell than the concentration of solutes inside the cell because there is 75% water inside the cell and 60% water outside the cell. So by osmotic pressure, water moves out of the cell.
b. Once the cell loses water it would shrink
c. It is an hypertonic solution because the concentration of solutes outside the cell is greater than the concentration of solutes inside the cell.
How does binding of complement-opsonized microbes to CR1 facilitate clearing of the microbe from the host? a. Secretion of proinflammatory cytokines b. All of the answers occur as a result of CR1 binding of complement-opsonized microbes. c. Promotion of phagocytosis of opsonized microbes by leukocytes d. None of the answers occur. e. Mediating phagocytosis of C3b-opsonized pathogen by B cells
Answer:
The correct answer is - b. All of the answers occur as a result of CR1 binding of complement-opsonized microbes.
Explanation:
Binding of complement - opsonized to CR1 makes the microbe palatable to the phagocyte for the phagocytosis and removes the microbe from the host cell. The mechanism of the removal takes place by the promotion of phagocytosis by the leukocytes.
Secretion of the pro-inflammatory cytokines also takes place in the clearing of the microbe and the phagocytosis is mediated by the B cells of the C3b-opsonized pathogen.
Which of the following professionals is best suited to help balance the operations of CAFOs and animal welfare concerns?
a veterinarian
an animal scientist
a small-scale farmer
an animal welfare educator
Answer:
A veterinarian.
Explanation:
Hope this helped!
Answer:
A Veterinarian
Explanation:
this seems like the answer to me.
Which of the following is true about an active site of an enzyme
Answer:
hi
Explanation:
hi
In a certain breed of cats, having black hair is the result of two dominant alleles for hair color (HH). The heterozygous genotype (Hh) produces a cat that has black and white spots. Having two recessive (hh) genes results in a white-haired cat. The Punnett square below shows the results of a cross between which two cats? H H HHHHH hHhHh OA. two spotted cats OB. a spotted cat and a white cat OC. two black cats OD a black cat and a spotted cat
Answer:
a black cat and a spotted cat
Explanation:
Match the types of roots to their properties. a root that is conical in shape and develops from the radicle a root that develops like a tuft of hair like roots and is short-lived a root that grows from plant parts other than roots a root that grows from branches to the ground a root that grow out of the soil adventitious root arrowRight pneumatophores arrowRight tap root arrowRight fibrous root arrowRight prop root arrowRight
Answer:
adventitious root ➡ a root that grows from plant parts other than roots
pneumatophores ➡ a root that grow out of the soil
tap root ➡ a root that is conical in shape and develops from the radicle.
fibrous root ➡ a root that develops like a tuft of hair like roots and is short-lived.
prop root ➡ a root that grows from branches to the ground
Explanation:
Adventitious roots are known to be roots that grow from a tree organ other than the root. The growth can be from the stem or leaf of that tree. This root makes it possible for vegetative propagation of plants to take place through stem or leaf cuttings. It can seen on rhizomes, corms, and tubers.
Pneumatophores are roots that grow out of the soil. They grow in saline mud and grow upward out of the mud and water. These type of root system are found in mangrove species. A tap root system is formed when the radical keeps growing and some other roots form along the tap root. They are conical in shape too.
I need help it’s from pivot ignore the answer choice that I put
On top of 80 is 100 btw
Answer:
the 3 one okay imma say things bc um it does let me post it
1. Which of the following is not a way that minerals can form?
1.From magma
2.From processes in the atmosphere
3.From other minerals
4.Organically
Help with this please
Which of the following is a peptide bond?
A.C-H bond
B.N-H bond
C.C-C bond
D.C-N bond
Answer:
The correct answer is - D.C-N bond
Explanation:
A chemical bond is formed between the carboxyl group of an amino acid to the amino group of the other amino acid and release a water molecule. It is a dehydration synthesis reaction.
So, the peptide bond normally formed by the reaction between amino acid from C1 of one amino acid molecule and N2 of the other amino acid molecule.
So the peptide bond that formed by this reaction is involve bonding of C-N bond.
PLEASE HELP!
Sebastian has two beakers. The first beaker has 100 mL of water and a second beaker has 500 mL of water. In order to identity common physical properties between both substances, he heats both substances to 100°C Sebastian notices that both
substances begin to bubble What physical property does this experiment provide evidence for?
A: This experiment provides evidence of a change in the volume of the samples
B: This experiment provides evidence that the volume remains constant in the samples.
C: This experiment provides evidence that the boling point does change based on sample size
D: This experiment provides evidence that the boiling point is a property independent of the amount of water
Answer:
The 2 beakers of water will have different boiling points because the boiling point of water is a physical property and the property is independent of the amount of water.
Explanation:
Got 100 on my test
7. How Is melosis different from mltosis?
O Melosis begins with only one cell.
O Melosis Is a cycle of cell dlvision.
O Melosis produces four new cells.
O Melosis is a form of cell reprodu
Answer: C. Meiosis produces four new cells.
Explanation:
Mitosis results in two identical daughter cells, whereas meiosis results in four sex cells.
Define organic evolution
Answer:
Organic evolution is the theory that more recent types of plants and animals have their origins in other pre-existing forms and that the distinguishable differences between ancestors and descendents are due to modifications in successive generations.
Explanation:
Answer:
Organic evolution is the theory that more recent types of plants and animals have their origins in other pre-existing forms and that the distinguishable differences between ancestors and descendents are due to modifications in successive generations.
Explanation:
What is an example of organic evolution? of Organic evolution produces genetic modifications in a species or inside a cluster of species with time. Examples of this phenomena are Evidence of missing links in Archaeopteryx, wings of birds and insects – analogous organs.
Complete a Punnett square for the cross-pollination of a blue flower (RR) and a green flower (Rr).
Answer:
2:2 ratio of inherited genes
Explanation:
There are two RR offspring that will be blue.
There are two offspring with Rr that will also be blue.
R is a dominate trait. With the presence of it in the genes, it will always be expressed over the recessive r trait.
An organism has 18 chromosomes in its body cell. It’s sec cells have 9 chromosomes
Answer:
Its sex cells are haploid and a result of meiosis.
Explanation:
your welcome
Do you agree that wild species such as orangutans have the right to exist whether or not they are useful to humans? Explain.
Answer:
Because orangutans live in only a few places, and because they are so dependent upon trees, they are particularly susceptible to logging in these areas. Unfortunately, deforestation and other human activities, such as hunting, have placed the orangutan in danger of extinction.
Explanation:
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Ape like organisms with red coloured hairs that are mammals and belong to the Hominidae family are called Orangutans. They are found in the rainforests and are 1.2 - 1.8 m in height.
To this open question, I don't agree with the statement.
The viewpoint can be explained as:
They have the right to exist even when they are not useful to humans as they play a vital role in the food chain and the ecosystem in which they reside.If Orangutans are withdrawn from the ecosystem then many plant species will be impacted or can vanish.Orangutan helps in seed dispersion and sustain a healthy and balanced condition of the ecosystem.The residents, trees and the ecosystem are interdependent for survival and hence, they cannot be removed.To learn more about Orangutans follow the link:
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do cells divide and replace old cells at a very precise regulated rate?
Answer:
Yes, cells divide and replace old cells at a very precise regulated rate
Answer:
cells are replaced every seven to ten years so cell replacement happens in that time but some parts of the body are faster than others but head to toe rejuvenation takes about a decade or so
Explanation:
Can you please help me I am super stuck
Answer:
a.) 12 Newtons
b.) Same Direction
c.) Unbalanced
Explanation:
The system shows 2 individual forces:
A force of 5 N pulling the box LEFT
A force of 7N pushing the box LEFT
Both forces are LEFT, so they have the same direction.
Since the parallel forces both have the same direction, regardless of whether it's a push or pull or what side of the box the force acts upon, the resultant force will be the sum of the two forces in their direction:
Resultant force's magnitude is then: 5N + 7N = 12N
Resultant force's direction: unchanged = LEFT
Since the resultant force's magnitude is not 0, the system is unbalanced.
Place the Polymerase Chain Reaction events listed below in the order in which they occur. - Double-stranded DNA is produced - DNA sample is heated - Test tube with DNA sample is placed in machine - Taq polymerase initiates DNA synthesis - DNA denatures
Answer:
1- Test tube with DNA sample is placed in machine
2- DNA sample is heated
3- DNA denatures
4- Taq polymerase initiates DNA synthesis
5- Double-stranded DNA is produced
Explanation:
The Polymerase Chain Reaction (PCR) is a technique widely used in molecular biology laboratories in order to produce many copies of a specific DNA sample. Thermocyclers are machines designed for a cyclic temperature change of the PCR. First, an initial denaturation step where DNA sample is heated to separate the double-stranded DNA into two single strands. Subsequently, 20-40 PCR cycles are repeated to produce millions of copies of a specific DNA sequence. There are three steps in each PCR cycle: 1-Denaturation to 94–98 °C (DNA strands are separated), 2-Annealing to 50–67 °C (primers bind to each DNA strand on the opposite ends of the DNA strands to be copied) and 3-Extension to 75–80 °C (Taq polymerase initiates the synthesis of complementary DNA strands).
Can someone please help me out I’ll give the brainliest!!
Answer:
its Bo
Explanation:
but it is possible to have both
Answer:
BO
explanation:
It all depends on the mothers type but its most possible that its BO
what does it mean when you dream about yourself dying?
Explanation:
Dreams of experiencing your own death usually means that big changes are ahead for you. You are moving on to new beginnings and leaving the past behind.
Answer:
it means your life is very long.
Explanation:
In pea plants the allele for tall plants in dominant to the allele for short plants, and the allele for purple flower colour is dominant to the allele for white flower colour. What is the genotype of a short plant produced from a cross between a true-breeding purple flowered pea plant and a true-breeding white flowered pea plant? *
1.TTPP
2.ttpp
3.ttPP
4.ttPp
5.TtPp
Answer:
The correct answer is - 4. ttPp
Explanation:
Given - tall is dominant over short pea plant
let assume T is dominant and t is short which is recessive
Similarly, P for dominant purple flower and p for white flower
The offspring has a short plant which means it has both t allele or recessive allele for the height of a plant by the cross of a true-breeding purple and true-breeding white:
P P
p Pp Pp
p Pp Pp
This means the offspring would have a heterozygous case for the genotype of the flower of the pea plant
Thus, the correct answer is ttPp