Answer:
Explanation:
ATCG are called the Nitrogenous Base. The DNA(deoxyribonucleic acid) is made up of a phosphate group, 5 Carbon sugar called deoxyribose and Nitrogenous base.
This Nitrogenous bases are further divided into purine and pyrimidine
Purine includes- Adenine and Guanine while pyrimidine includes Thymine and Cytosine or Uracil in the RNA.
When Base pair occurs, Adenine pairs with Thymine while Guanine pairs up with cytosine in DNA.
7. a) How does a vaccine relate to the virus that it protects against? (1 point)
Answer: A vaccine works by training the immune system to recognize and combat pathogens, either viruses or bacteria. To do this, certain molecules from the pathogen must be introduced into the body to trigger an immune response. These molecules are called antigens, and they are present on all viruses and bacteria.
Explanation:
Hypothesize how the properties of water protect the aquatic organisms living in a temperate-
climate pond during both the summer and winter months.
Couple sentences
Answer:
Hydrogen bonds make water molecules spread out when they freeze. This makes ice less dense than water and allows ice to float. If ice did not float then oceans and lakes would freeze from the bottom up, killing marine life by trapping organisms in the ice. When ice floats, it insulates the water below, keeping it at around 4 degrees C or 40F, which does not freeze and allows fish to survive the winter.
Explanation:
Cytokinesis in animal cells differs from mitosis in plant cells in that animal cells do not form __________.
a contractile belt
a cell plate
centrosomes
centrioles
Answer:
cell plate
Explanation:
animal cells dont have this capacity
Answer:
2) a cell plate
Explanation:
a plant cells do not have centrioles
Plants must form a cell plate because they have cell walls.
Select the correct answer.
The testosterone level in Brian's blood has dropped below the normal range. Which sequence of events will happen as a result?
OA. The pituitary gland secretes the luteinizing hormone (LH), which stimulates the hypothalamus to secrete the gonadotropin releasing hormone (GnRH).
Thisstimulates the testes to secrete testosterone.
B. The hypothalamus secretes the gonadotropin releasing hormone (GnRH), which stimulates the pituitary gland to secrete luteinizing hormone (LH). This
stimulates the testes to secrete testosterone.
OC. The pituitary gland secretes the gonadotropin releasing hormone (GnRH), which stimulates the hypothalamus to secrete the luteinizing hormone (LH).
This stimulates the testes to secrete testosterone.
B. The hypothalamus secretes the gonadotropin releasing hormone (GnRH), which stimulates the pituitary gland to secrete luteinizing hormone (LH). This stimulates the testes to secrete testosterone.
Answer: B. The hypothalamus
Explanation: just took the test
Please help with the answer
Answer:
its d
Explanation:
Velocity is the slope of the displacement vs. time graph.
A. True
B. False
Answer:
t
Explanation:
a
Study the diagram of the two animals.
Which statement best describes the animals?
Animal X begins life as a tadpole, and animal Y begins life as a larva that looks like the adult.
Animal X begins life as a larva that looks like the adult, and animal Y begins life as a tadpole.
Both animal X and animal Y begin life as a tadpole and change form as they develop.
Both animal X and animal Y begin life as a larva that looks like the adult.
Answer:
x is right y it the wtonges
Answer:
c
Explanation:
the answer is c
After sperm are produced, they move into a sperm storage area called the _____. A. scrotum
B. seminiferous tubules
C. epididymis
D. vas deferens
Answer:
epididymis
Explanation:
C. epididymis
good luck!
3.The term that is used to describe Earth’s orbit around the Sun is Earth’s. ______________________ (4 Points)
Answer:
Earth's orbit is an ellipse
hope i helped!!
Can someone please do this
Answer:
i have this worksheet let me get it
Explanation:
a parent has one dominant allele for black fur (B) and one recessive allele for white fur (b). the other parent has two recessive alleles for white fur. in this cross what is the chance that an offspring will be born with black fur?
Answer:
50%
Explanation:
Answer:
100% Black fur, 0% White Fur
Explanation:
Since the male has black fur and has the dominant allele, and the mother with the white fur has the recessive allele. The baby will come out with black fur.
State the law of conservation of energy. According to this law, how is the total amount of energy affected in any process (like a swinging pendullum or bowling ball hitting the pins)?
Answer:
The law of conservation of energy is that energy can not be created or destroyed. This means that it can only be transferred from one form of energy to another. In any situation the total amount of energy is, let's say for example a ball rolling down a hill, both the potential and kinetic energy is combined to find the total energy. The total amount will be the same in a process because the amount of potential energy or kinetic energy can only transfer to what is already being used. Example, say the total energy will be on a pie chart, let's say 1/4 of the graph is potential and 3/4 is kinetic. No matter what, the pie graph will be 4/4.
PLEASE HELP!!! Will mark as brainliest!
In Linneaus's book Systema Naturae, minerals were originally included while classifying living things.
But, minerals were later removed from this classification. What characteristic of science does this show?
A. Scientific knowledge is rigid.
B. Scientific knowledge is permanent.
C. New evidence emerges by chance.
D. New interpretations are a part of science
Answer:
Option-D
Explanation:
Carolus Linnaeus gave the three kingdom classification of organisms that is plants, animals and mineral kingdom.
He included various features which were mostly morphological and kept living organisms into plants and animals and non-living things into his mineral kingdom. This mineral kingdom was later removed from the classification system.
The removal of the mineral kingdom shows that the interpretations can be a part of science and science is not permanent but changes with time. The advances and development in science shows are the results of new interpretations in science.
Thus, Option-D is correct.
Answer:
The answer is D im on the test right now so the answer is D
Explanation:
What do valleys on the surface of a planet or moon suggest about previous land features?
A.
the presence of human life forms
B.
the presence of water
C.
the presence of earthquakes
D.
the constant bombardment of asteroids
Answer:
B
Explanation:
Valleys are created by streams of running water
Despite being farther from the sun and mercury, Venus has a much warmer temperature. What accounts for Venus’s temperature being higher than Mercury’s? Also if anyone is in environmental science and can help me with the answers I would appreciate it.
Explanation: Despite being farther from the sun and mercury, Venus has a much warmer temperature. Because Venus is closer to the sun than Earth is, it receives more solar energy than Earth does. Much of this radiation is reflected by Venus's clouds, but some radiation reaches the surface and is later given off as heat. The carbon dioxide in Venus's atmosphere traps heat so well that Venus has the hottest surface among the planets. This trapping of heat by the atmosphere is called the greenhouse effect. The Venus has thick atmosphere than Mercury.
I hope this helps you.
The carbon dioxide in Venus's atmosphere traps heat so well that Venus has the hottest surface among the planets. This trapping of heat by the atmosphere is called the greenhouse effect. The Venus has thick atmosphere than Mercury.
What is green house effect?Venus is significantly warmer even though it is further away from the sun and mercury. Venus receives more solar energy than Earth does because it is nearer to the sun. The clouds of Venus reflect most of this radiation, although some energy does reach the surface and is later converted to heat. Venus has the warmest surface temperature of all the planets due to how strongly the atmosphere of the gas carbon dioxide traps heat. This trapping of heat by the atmosphere is called the greenhouse effect. The Venus has thick atmosphere than Mercury.
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Please Help!
two new species of plants were introduced into an area that was low in available nitrogen compounds in the soil. one formed nodules and one did not. which species would you reasonably expect to grow more robustly?
explain.
Answer:
The plants with the nodule will grow faster
Explanation:
The plants which has the nodule possesses a bacteria called Rhizobium which helps in the fixation of nitrogen to the soil and the relationship is a symbiotic one. When the Bacteria fixes the nitrogen into the soil the plants with the nodule has the advantage of nitrogen uptake in the soil before the ones who don’t possess the nodules.
Mitochondria is where takes place
Answer:
photosynthesis is the answer
Glycolysis thats the answer to your problem
What do the following areas of scientific understanding have in common?
Science is a dynamic subject and it changes all the time. In the science field, research is always on going and when new evidence are discovered about a particular topic, the new evidence are usually used to update the scientific information that is already on ground. All the areas of science listed about have enjoyed scientific updates in the recent.
Compare AND contrast primary and secondary succession.
Answer:
Primary succession occurs following an opening of a pristine habitat, for example, a lava flow, an area left from retreated glacier, or abandoned strip mine. In contrast, secondary succession is a response to a disturbance, for example, forest fire, tsunami, flood, or an abandoned field.In primary succession, newly exposed or newly formed rock is colonized by living things for the first time. In secondary succession, an area that was previously occupied by living things is disturbed, then re-colonized following the disturbance.
Explanation:
Answer:
The basic difference between primary and secondary succession is the presence of soil. When primary succession begins, soil is not present; in the case of secondary succession, soil is already in place.
The process of separating the DNA fragments with an electrical current is
called
Answer: The process of separating the DNA fragments with an electrical current is called Electroscopes.
Explanation: HOPE IT HELPED:)
what type of mutation is shown in the diagram
ANSWER FOR BRAINLIEST
Sally and Maria were running around the track during PE. They were not happy and decided to stop and rest once they got to the bleachers. After a 10 minute rest, they started running again, but Sally tripped and fell. At what time during their run did Sally fall for a minute?
A) at 4 minutes
B) at 14 minutes
C) at 15 minutes
D) at 20 minutes
Answer:
At fifteen mins
Explanation:
The line becomes straight for one min at the fifteen min marker.
When two alleles "blend in" , or "mix" together it is known as -
Incomplete dominance
Codominance
The city of San Francisco reported more missing dogs the week before a massive earthquake than any other week of the year. Explanation: Dogs can sense impending danger.Which resource would you use to determine whether this explanation is vaild?
A)
education websites
B)
blogs
C)
lifestyle magazines
D)
newspaper
Answer:
You would use A, an educational website.
Explanation:
You would use an educational website because it is the most likely source to have information on what you are looking for.
Educational websites resource would you use to determine whether this explanation is vaild.
What are Educational websites?Websites with games, movies, or subject-specific information that serve as tools to improve learning and supplement in-person instruction might be considered educational websites. In this day and age, these websites assist in making learning enjoyable and appealing for the learner.
These websites have a lot of benefits, but we also need to be mindful of their drawbacks. Students must be adequately guided. Without the right direction, students could come across websites and content that are unreliable or contradict what is being taught in class.
A large variety of games and resources are available on some enormous websites. On these websites, students could be easily distracted and wind up spending time on tasks that are either below their level or not relevant to them.
Therefore, Educational websites resource would you use to determine whether this explanation is vaild.
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not sure which one plz help
Answer:
I believe it's both C and D
Answer:
C and D.
Explanation:
Antibodies are proteins produced by the body's immune response against an antigen. They bind to foreign substances in the body to "mark" or signal to other parts of the immune response that the substances must be destroyed.
Which part describes an example of a carnivore and it’s diet
how does your skin protect you
Answer:
Your skin protects you by having the immune system.
Explanation:
Your skin produces the covering of cells, and has an immune system that protects you from becoming ill.
Answer:
The skin acts as a natural barrier between the outside environment and our body in both the macro and micro world.
Explanation:
The skin protects our organs and tissues from the outside environment, preventing other organisms like bacteria from stealing our body's nutrients and harming our body's cells. It also protects us in the event that our body is hit with something (for example, a fall).
What gland or glands affect bone density by controlling the level of calcium
ions in blood?
O A. Thyroid gland
O B. Testes
C. Adrenal glands
O D. Pancreas
Answer: A. Thyroid Gland
Explanation: The thyroid gland regulates the body's metabolism, while parathyroid glands regulate calcium levels and have no effect on metabolism. Parathyroid hormone (PTH) has a very powerful influence on the cells of your bones by causing them to release their calcium into the bloodstream.
Answer:
the answer is a
Explanation:
(NOT IN MIDDLE SCHOOL)
AP BIO-
Stuck on this question.
Explain the mechanism by which viruses identify and attatch to the correct target cell-
Answer:
I think you didn't give enough info.
Explanation:
Qickly Answer this
Check all that are TRUE about biodiversity. *
Ecosystem diversity is the number of different kinds of ecosystems.
Depending on the ecosystem, some species can unravel the whole ecosystem if the die.
Species diversity is the number of species in that ecosystem.
Biodiversity is not important because we are humans and we don't need are these other organisms on Earth.
Diversity within a species increases genetic diversity.
Other:
Answer:
A. B. D.
Explanation: