Answer:
Not all DNA that was found at the scene has to be related to the scene.
Explanation:
Just because DNA was found at the scene, that doesn't mean that the person there is actually guilty. For example, in a case where person B is guilty, a strand of hair from Person A could be carried over to another scene on Persons B's clothing.
Answer:
Because DNA is more reliable than other forensics, scientists have shrugged off suggestions that it could fall victim to the vagaries of bias. But Dror noted that much DNA analysis involves interpretation. With interpretation comes subjectivity, and with subjectivity can come error. Only one-tenth of 1 percent of human DNA differs from one individual to the next and, although estimates vary, studies suggest that forensic DNA analysis is roughly 95 percent accurate.
Explanation: Hope this helps
To achieve which of the following goals would rotational grazing be most appropriate? (3 points)
-To maximize livestock populations while minimizing costs
-To preserve vegetation and soil fertility of land
-To involve townspeople in the operations of a nearby farm
-To transform an abandoned city lot into a neighborhood garden
Answer:
To preserve vegetation and soil fertility of land
Explanation:
.
A person with a low number of white blood cells could have difficulty in fighting infections and A decrease in the number of lymphoid stem cells could result in a decrease in red blood cell.
What is nucleotide?It is the sub units and buIlding blocks of DNA. It is made up of a five-sided sugar, phosphate group and then a nitrogen base.
These groups make the backbone of the DNA helix. If you look at a DNA helix, they make the side of the ladder or the side portion. They connect to a nitrogen base which make the steps of the ladder. The type of sugar that is used in a DNA helix is called deoxyribose.
Nitrogen bases are the molecules that make up the steps of the ladders. There are four different nitrogen bases, namely; Guanine, Thymine,Adenine and Cytosine.
Pyrimidines are compounds that make a single 6-sided ring. Examples of pyrimidines are Cytosine and Thymine. Purines on the other hand make 5-sided and 6-sided rings.
Therefore, A person with a low number of white blood cells could have difficulty in fighting infections and A decrease in the number of lymphoid stem cells could result in a decrease in red blood cell.
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In rabbits, black fur (B) is dominant to brown fur (b). Consider the following cross
between two rabbits.
TI
A
Bb x Bb
Refer to the illustration above. The device shown, which is used to determine the probable
outcome of genetic crosses, is called a
Answer:
B b
1 2
3 4
Explanation:
The device used to determine the probable outcome of genetic crosses, is called a punnet square.
We know that genes are units of inheritance located in the chromosomes and control different traits in living things. Genes mostly occur in pairs. The pairs of genes are called alleles. The observed traits of an organism is called its phenotype and it depends on the combination of genes.
A punnet square as shown is used to determine the most probable outcome of the crossing of genes in individual organisms.
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What are the two chemicals that go back and fourth in the oxygen cycle
Answer:
oxygen and carbon dioxide
Explanation:
Mutations can occur naturally during normal cellular processes or be induced by an environmental factor.
True Or false
Answer:True
Explanation:
growth hormone and insulin are protein hormones that regulate carbohydrate metabolism by hepatocytes through the activation of intracellular signaling pathways. researchers investigative whether the two hormones trigger the same or different intracellular signaling pathways in hepatocytes. the researchers added either growth hormone or insulin to parallel cultures of hepatocytes. at several times points after the hormone addition they purified total intracellular protein from the cells and quantified the level of the phosphorylated forms of two proteins involved in two different signaling pathways (figure 1, A and b) .identify a dependent variable in the experimental design identify negative control for the effects of hormone addition identify a likely reason why the researchers continue their experiments for 240 minutes
Please heeelp
Why are plants, but not animals, thought to be an important factor in classifying a land biome?
Answer:
becuase plants make up surrounding areas, if you see no plants and soil with no fertilization from plants it is most likely a desert, and a place with tall and thick plants is most likely a forest
Answer:
Explanation: Because the biome must support the plant since the grow a plant you must have good temperature the constant rainfall and the soil, that is why plants are the most important factor since its chooses what plant can survive in that biome.
A duplicated chromosome has 2 connected sister chromatids connected by a centromere. true or false?
I'll give you a brainliest if is right or at least shows some effort
(thanks & i hope your having a good day)
In your own words, explain how a radiosonde can be used to predict future weather conditions in a location.
A radiosonde is a small, expendable instrument package suspended below a weather balloon. As the balloon rises, sensors on the radiosonde measure values of atmospheric temperature, pressure and relative humidity. These sensors are linked to a radio transmitter, which sends measurements to a ground receiver
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The diagram below shows different layers of sedimentary rocks.
Based on the diagram, which of these inferences is most likely correct?
A Layer B is older than Layer G
B Layer F is older than Layer D
C Layer A and Layer B were formed at the same time
D Layer D and Layer C were formed at the same time
Answer:
B. Layer F is older than Layer D
Explanation:
How does convection work and how does it move tectonic plates? *
Answer:
Convection is the process of warm fluids rising and cooler fluids sinking. Inside the Earth, convection is powered by heat mostly from the core. The slow circulation of rock in the mantle moves the tectonic plates at the surface.
Explanation:
photo attached, what structures are A-F please help
Answer:
57esutpxtud75sr07d75075sztu9
Answer: A might be the nucleus and F is amino acid
Explanation:
explain the ten central themes of biology
Answer:
The five central themes of biology are structure and function of cells, interactions between organisms, homeostasis, reproduction and genetics, and evolution.
The national government wants to increase the number of national parks and recreation areas. How will this act help with the sustainability of our environment?
A.It will increase the carrying capacities of all animal species.
B.It will decrease land use for waste management.
C.It will preserve biodiversity for future generations.
D.It will cause a biological surplus of all plant species.
Answer:
It will preserve biodiversity for future generations.
Explanation:
took test and got it right
the question is in the photo
12. Integral proteins are located
Answer:
Integral membrane proteins are permanently embedded within the plasma membrane. They have a range of important functions. Such functions include channeling or transporting molecules across the membrane. Other integral proteins act as cell receptors
Explanation: HOPE U GET AN A HAVE A GREAT DAY!!!
Which image shows karst topography?
Ocean with palm trees at the beach.
A sinkhole.
Overhead view of an oxbow and fields.
Answer:
B
Explanation:
a sinkhole is the answer. I got it on edge 2020
Answer:
its B
Explanation:
Which of the following adaptations dose not help an animal move through the water
Answer:
thick layer of blubber
Explanation:
this is the only answer i could infer since you did not provide the adaptations hope it helps :)
PLEASE HELP I WILL GIVE BRAINILIST IF YOUR RIGHT THESE ARE FINALS PLS
Answer:2nd Answer Choice: It creates genetic variation within the organisms
Explanation:
I am in ap biology so I know this.
If an ecosystem is overpopulated
a. It's up to humans to correct the number
b. Exponential growth will continue
C. The resources of that ecosystem will not be able to fully support it for very
long
d. The rate of rehabilitation will only exceed the number of primary
consumers as long as the model of competition is NOT neglected.
Answer:
Okay this might be wrong but I'm certain the answer it C because of competition and the environments carrying compacity.
Why do Komodo dragons and red-tailed boas have so many differences, even though they share a
common ancestor?
Komodo dragon differences
legs
jagged teeth
armored skin
somewhat flexible body
jaw not flexible
Red tailed boas differences
no legs
teeth not jagged
no armored skin
very flexible body
flexible jaw that can open very wide
Answer:
Read this PDF it may help
Explanation:
Order Urodela has amphibian with aquatic and terrestrial species with very flexible bodies, has a tail, and retains its juvenile features throughout its life.
What is terrestrial species?An animal or plant that lives on land or in the ground, as opposed to the sea, trees, or the air, is said to be terrestrial. There are occasionally aquatic and terrestrial animals seen sleeping next to each other under a loose stone.
These animals can run quickly because the majority of them have legs. They must move quickly to capture their prey or avoid being an animal's next meal (predators). Komodo dragons and red-tailed boas have so many differences, even though they share a common ancestor.
Therefore, Order Urodela has amphibian with aquatic and terrestrial species with very flexible bodies, has a tail, and retains its juvenile features throughout its life.
Therefore, Order Urodela has amphibian with aquatic and terrestrial species with very flexible bodies, has a tail, and retains its juvenile features throughout its life.
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Which of the following statements about eukaryotic cells is NOT
true?
Eukaryotic cells have a membrane-bound nucleus
Eukaryotic cells are more complex than are prokaryotic cells.
Eukaryotic cells are believe to
e evolved more recently than
prokaryotic cells.
Eukaryotic cells are usually smaler than prokaryotic cells
Answer:
Eukaryotic cells are believed to be evolved more recently than prokaryotic cells.
Explanation:
The statement about eukaryotic cells is NOT true - Eukaryotic cells are usually smaller than prokaryotic cells
Cells are fundamental units and are mainly two types eukaryotic cells and prokaryotic. There are various structural and functional differences and similarities found in them.
Prokaryotes and eukaryotic cells have the following difference:
Prokaryotic cells lack a true nucleusProkaryotic cells lack other membrane-bound organelles.Eukaryotic cells have more organelles, enzymes, and molecules, therefore, prokaryotic cells are simpler.Prokaryotic cells are comparatively smaller than eukaryotic cells.Prokaryotic cells are evolved before eukaryotic cells.Thus, the statement about eukaryotic cells is NOT true - Eukaryotic cells are usually smaller than prokaryotic cells
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The stock is inserted into the scion during grafting. True False
That would be False
Explanation:
What is the correct type of circulatory system for members of class Reptilia?
Open - Oxygen is delivered to organs by blood washing over organs in the body cavity.
Closed - Oxygen is delivered to organs by blood traveling through arteries and veins.
O Closed - Oxygen is delivered to organs by blood washing over organs in the body cavity.
O Reptiles don't have a circulatory system.
Answer:
Closed the first one
Explanation:
In amphibians, reptiles, birds, and mammals, blood flow is directed in two circuits: one through the lungs and back to the heart, which is called pulmonary circulation, and the other throughout the rest of the body and its organs including the brain (systemic circulation).
most mammals, have closed cardiovascular systems. The two main circulation pathways in invertebrates are the single and double circulation pathways.
how does the law of conservation of energy apple to virbatioin
Answer:
As objects move around over time, the energy associated with them—e.g., kinetic, gravitational potential, heat—might change forms, but if energy is conserved, then the total will remain the same. Conservation of energy applies only to isolated systems.
Explanation:
What process is responsible for producing 2N zygote
Answer:
fertilization
Explanation:
Which statement describes one characteristic of index contour lines?
O They appear thinner and lighter than other lines on a map.
O They show regions where a difference in elevation exists.
O They show the locations of roads and paths on the landscape.
O They show ratios used to determine the actual distance on a map.
Answer:
They show regions where a difference in elevation exists.
Answer choice is B
Explanation:
correct on egj 2020
Answer:
B.)They show regions where a difference in elevation exists.
Explanation:
I took the exam review
What factors contribute to Earth's tides? Choose more than one answer.
A.Change of seasons
B.The gravitational pull of the Moon
C.Radiation from the Sun
D.Earth’s rotation
E.Moon’s orbit around Earth
F.Earth’s orbit around the Sun
Answer:
B, E, F, D
Explanation:
The tide is largely controlled by the moon's gravitational pull.
The sun and moon both effect the tide.
Although the Earth's rotation has a smaller role, I included it as well.
The factors that contributes to Earth's tides are gravitational pull of the Moon, Earth’s rotation, Moon’s orbit around Earth, and Earth’s orbit around the Sun. The correct options are B, D, E, and F.
What are tides?Tides are the rise and fall of sea levels caused by the combined effects of the Moon's gravitational forces, as well as the Earth and Moon orbiting each other.
Tide tables can be used to predict tide times and amplitudes for any given location.
High as well as low tides are resulted by the moon's gravitational pull on the Earth and the Earth's rotational force.
The side of the Earth closest to the Moon experiences the strongest Moon's pull, causing the seas to rise and creating high tides.
One major force that causes tides is gravity. Ocean tides are caused by the sun's and moon's gravitational attraction to the earth's oceans.
Thus, B, D, E, and F are correct options.
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The earth , the sun , and the seven other planets that are in orbit around the sun are part of the solar system. How does the size of the solar system compare with the size of the milky way galaxy ?
Answer:
Size of milky way galaxy is very large than our solar system.
Explanation:
The size of the solar system is much smaller than the size of the milky way galaxy because our solar system is a part of milky way galaxy. The radius of our solar system is 4.545 billion km while on the other hand, the radius of the milky way galaxy is 52,850 light years which is very very large than the radius of our solar system. Milky way galaxy has 100–400 billion planets while in our solar system has only eight planets.
which era below is incorrect?
help please <3
Answer:
mesozoic
Explanation:
the other eras are ancient eras.
What do you call the overall force acting on a object
Answer:
It's called a resultant force.
Explanation:
You see, there may be more than one direction of a force acting on an object so if both forces are of equal strength, the object doesn't move, but if one force is stronger than the other, the resultant force would tilt towards that force and the object would move that direction. It is the resultant force that decides where the object would go based on the forces acting on it.