Research on laboratory rats suggests that hunger is controlled by the
A. prefrontal cortex
B. hypothalamus
C. amygdala
D. cerebellum
Please select the best answer from the choices provided
Answer:
b hypothalamus
Explanation:
The hypothalamus controls hunger and satiety. Therefore, option (B) is correct.
What is the role of hypothalamus?
The hypothalamus regulates circadian rhythms, appetite, thirst, and body temperature. The study of illnesses and diseases associated to the neuroendocrine system may benefit from using rat hypothalamic neurons.
The arcuate nucleus, or infundibular nucleus in humans, is a region of the hypothalamus that permits peripheral peptides and proteins to cross the blood-brain barrier and interact with its neurons.
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Body cells that contain the full number of chromosomes, 46 in humans, are called
Answer:
somatic cells?
Explanation:
1. What makes California special in terms of biodiversity?
Answer:
California is a biodiversity hot spot because of its unique geography, climate, geologic history and size. California’s network of terrestrial protected lands covers 46% of the state.
Explanation:
Question 16 of 30
Which of the following best describes the purpose of technology?
O A. To find creative solutions to problems
B. To keep scientists working on interesting projects
C. To entertain
OD. To fund experimentation
Answer:
I would believe the correct answer is A, To find solutions to problems.
Explanation:
Technology is not actually just T.V's and phones (etc) but instead Technology is actually objects that are ment to make an action easily and more efficiently.
plz help me this is for a grade
Answer:
Organelle 1
Explanation:
This is the nucleus which stores dna, which would determine blood type.
Organelle 1 is called as the nucleus that stores DNA, which would determine blood type. So, the correct option is A.
What is Nucleus?The membrane-enclosed organelle in a cell that houses the chromosomes is known as the nucleus. The nuclear membrane has a variety of pores that enable the selective passage of specific molecules (such proteins and nucleic acids) inside and outside the nucleus.
The cytoplasm and nucleus's contents are separated by the membrane. The chromosomes of the cell are also included within it. The chromosomes, which contain DNA, supply the genetic data necessary for the synthesis of various cell components as well as for the replication of life.
It regulates the cell's growth and reproduction and holds the genetic information. The genetic makeup of a cell is contained in the nucleus, which has been explained in detail as a membrane-bound structure.
Therefore, the correct option is A.
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In summer squash, white fruit color (W) is dominant over yellow fruit color (w) and disk shaped fruit (D) is dominant over sphere-shaped fruit (d). If a squash plant pure-breeding for white, disk shaped fruit is crossed with a plant pure breedig for yellow, sphere shaped fruit, CACULATE GENOTYPIC AND PHENOTYPIC RATIOS
Answer:
Genotypic ratio = 16 WwDd: 0
Phenotypic ratio = 16 white, disk shaped fruit : 0 yellow, sphere shaped fruit
Explanation:
This question involves two different genes coding for fruit color and fruit shape respectively. The allele for white fruit color (W) is dominant over yellow fruit color (w) and disk shaped fruit (D) is dominant over sphere-shaped fruit (d).
According to this question, If a squash plant pure-breeding for white, disk shaped fruit (WWDD) is crossed with a plant pure breeding for yellow, sphere shaped fruit (wwdd), the following gametes will be produced by each GAMETE:
WWDD - WD, WD, WD, WD
wwdd - wd, wd, wd, wd
Using these gametes in a punnet square, all of the offsprings will have genotype WwDd, which is phenotypically white and disk shaped fruit.
The genotypic ratio is 4 WwDd: 0
The phenotypic ratio is 16 white, disk shaped fruit : 0 yellow, sphere shaped fruit.
Moles and freckles are similar in that they are both:
skin abnormalities
growths
caused by an even distribution of melanin
caused by an uneven distribution of melanin
Answer:
I believe that the answer would be skin abnormalities.
Explanation:
Growths do not apply.
Melanin applies mainly to freckles.
What evidence supports the claims that the climate is
changing? I
Recall that an ecosystem includes living things AND the non-living environment.
Which of these are examples of non-living parts of the ecosystem pictured?
A sunlight, rocks, water, rotting log
B soil, insects, tree, mushrooms
C fish, frogs, snails, birds
D algae, protozoans, bacteria, plankton
can someone please answer these two questions correctly? thank you so much!! ((:
Explanation:
1) 72 of their chromosomes would be somatic and only 2 would be gametes. the number is always two as (normally) an organism will have either 2 X chromosomes (female) or an X and Y chromosome (male).
2) without genetic diversity, an entire species of an organism can go extinct from the same thing as none of them would have mutated any defenses and pass them off to their offspring.
hope this helps :)
Explain why an area with extreme temperatures like one in the Arctic would be resistant to invasion by a biotic disturbance.
Answer:
Negative responses protect our body by taking the deviation and making it less harmful to the body. When you cut your finger and lose blood, negative feedback kicks in to slow and stop the flow of blood.
The reason of area having high temperatures should be because of the negative response.
Reason of area with extreme temperatures:Due to the negative response, it protect our body by considering the deviation and it make less harmful to our body.
Also, when you cut the finger and blood comes so there is the negative feedback that kicks for stopping the blood flow.
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A space used in industry or research settings that has a controlled level of contaminants is called a __________.
Answer:
Clean room.
Explanation:
An experiment can be defined as an investigation which typically involves the process of manipulating an independent variable (the cause) in order to be able to determine or measure the dependent variable (the effect).
This ultimately implies that, an experiment can be used by scientists to show or demonstrate how a condition causes or gives rise to another i.e cause and effect, influence, behavior, etc in a sample.
Cause and effect can be defined as the relationship between two things or events in which an occurrence one (cause) leads to the occurrence of another (effect).
Hence, a space used in industry or research settings that has a controlled level of contaminants is called a clean room.
A clean room refers to environment or laboratory that is typically free from dust, pollution or any form of contaminants, used for carrying out experiments and manufacturing processes.
Why do birth control pills contain progesterone?
Help please!!
Answer:c u take birth control to not get pregant so if thers no sperm and eggs mixed no prego
Explanation:
A student comes to school and eats breakfast before going to class. Eating breakfast gives the student sufficient energy to handle her classes. What two body systems work together to provide the student’s cells with energy?
A.
Excretory and endocrine
B.
Digestive and circulatory
C.
Digestive and excretory
D.
Excretory and circulatory
ome people have dimples; other people do not. Having dimples is dominant over not having dimples.
If the allele for having dimples is represented with the letter D, what allele combinations can result in having dimples?
Describe each group’s role in the food web:
Producers:
Herbivores:
Carnivores:
Omnivores:
Detritivores:
Decomposers:
Which line best foreshadows that the young man will end up in solitary
confinement?
Answer:
Explanation:
there is nothing on the slide
Can anyone help me with finding answer?!
before I answer this question can you specify it
Please Help!! I need it :)
I think it's endoplasmic reticulum:)
Meiosis is of evolutionary signicance as it
d. four daughter cells
b. generally similar daughter cells
a. Gametes
c. recominations
Answer:
d
Explanation:
four daughter cells are produced in meiosis
Which item in the photo is a good thermal insulator, and why?
A. The plastic handle, because its electrons dont move freely
O B. Human skin, because it is made up mostly of water
C. The metal pan, because its electrons move quite freely
D. The cut vegetables, because they contain a lot of water
Answer:
free electrons can go through the material such as they are most through loses send the water inside the vegetables of human skin is not very good inspiration because its water if you had to take a warm shower and then come out you feel very cold
While frying French fries, Wanda burned her hand. Burns are examples of a:
skin abnormality.
homeostatic balance.
skin infection.
homeostatic imbalance.
Answer:
Damage to the skin or deeper tissues caused by sun, hot liquids, fire, electricity, or chemicals.
The degree of severity of most burns is based on the size and depth of the burn. Electrical burns, however, are more difficult to diagnose because they're capable of causing significant injury beneath the skin without showing any signs of damage on the surface.
Explanation:
hope this helps, lovely!! Have a great day <3
Answer:
D
Explanation:
homeostatic imbalance
help me pls answer..
1. Which statement is true about renewable natural resources?
Resources that are being used at a rate much faster than the rate at which they are
formed.
Resources exist in a fixed amount and can only be replaced through a process that
takes millions of years.
Resources replaced through natural processes at a rate equal to or faster than they
are being used.
Natural Resources can be depleted or used to the point that they are no longer
available.
Answer: it is b i just did it 5 minutes ago
Explanation: it is b i just did it 5 minutes ago
structure that helps move bacteria is called a
Explanation:
Flagella - Flagella (singular, flagellum) are hairlike structures that provide a means of locomotion for those bacteria that have them. They can be found at either or both ends of a bacterium or all over its surface.
The difference between a monohybrid cross and a dihybrid cross is that _
Answer:
A monohybrid cross is defined as the cross happening in the F1 generation offspring of parents differing in one trait only. A dihybrid cross is a cross happens F1 generation offspring of differing in two traits.
Explanation:
This is correct.
I NEEEDDD HELP PLEASE
Answer:
the second answer choice
25% red, 50% pink, and 25% white
Explanation:
construct a punnett square with the genotype RW and cross them to get genotypes of RR, RW, RW, and WW.
RR is red and occurs once so that is a 25% chance (1/4)
RW is pink and it occurs twice so that is 50% (2/4)
WW is white which occurs once and it is another 25% (1/4)
A scientist crosses a brown guinea pig with a white guinea pig several times, he has a
phenotypic ratio of 1 brown, 2 spotted and 1 white, is this an example of complete
dominance or incomplete dominance? Explain your answer.
no
The various enzymes in our body are _____.
carbohydrates
lipids
nucleic acids
proteins
What is the driving force of it’s watershed?
Answer:
(It includes drainage channels through rivers, streams, and ground; natural filters in wetlands and estuaries; and sinks in lakes and oceans.) What is its driving force? (It is the hydrologic cycle.)