Which of the systems in Anatomy and Physiology utilizes a positive
feedback loop to control some part of body homeostasis?
- muscular system
- skeletal system
- none of these systems uses positive feedback
Answer:
none of these systems uses positive feedback
Explanation:
In a positive feedback loop, feedback serves to intensify a response until an endpoint is reached. Examples of processes controlled by positive feedback in the human body include blood clotting and childbirth
Which of the following is not a characteristic of the T-Cell line?
A. Regulatory (or suppressor) T-cell inhibit the immune response
B. Cells are matured in the thymus gland
C. The cells originate in bone marrow from stem cells
D. T-Helper cells stimulate both the humoral and cell-mediated response
Answer:
D. T-helper stimulate only humoral response. Cell mediated is by B cells.
14. Which of the following is not a way in which humans improve biodiversity?
O Introduction of invasive species
O Removal of pollutants
O Reducing fertilizer loads
Restoration of local communities
O Building artificial reefs
The introduction of invasive species is not a way to improve biodiversity.
• An organism, which causes economic or ecological harm in a new environment where it is not native is known as an invasive species.
• It can harm the natural resources in an ecosystem and at the same time can hamper human use of these resources.
• An invasive species can be a kind of plant, amphibian, insect, fungus, fish, bacteria, etc. and is not native to an ecosystem and results in harm.
• They possess the tendency to cause extinctions of native animals and plants, decline biodiversity, by competing with local species for limited resources, and changing habitats.
Thus, introducing invasive species is not a way by which humans can improve biodiversity.
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Aliyah’s dog gave birth to 7 puppies 3 days ago. The dad of the puppies is all black and mom is all white. However, when she checked, there were 2 all black puppy, 2 white, 2 with black and white spots and 1 brown fur puppy. How was that possible? Explain.
Answer:
Both parents are heterozygous. The father has a dominant black allele and a recessive brown allele. The mother has a dominant white allele and a recessive brown allele. The black allele from the father and the white allele from the mother creates co-dominance, so the puppy will be black with white spots. The brown allele from the father and the brown allele from the mother creates a brown puppy. If white OR black allele combined with a brown allele, the dominant allele will be expressed, rather then the brown recessive allele.
Explanation:
Why you think the human population has been to grow so much in the last 500 years. what are some of the things that have allowed this to happen
more housing, better healthcare,
How is the Grants' work similar to Darwins?
Answer:
The Grants study the evolution of Darwin's finches on the Galapagos Islands. The birds have been named for Darwin, in part, because he later theorized that the 13 distinct species were all descendants of a common ancestor. ... (The only other finch on the island is the cactus finch.)
Explanation:
Astrology is pseudoscience. What can you conclude about the claims made by astrology?
Answer: claims are not valid
Explanation: Astrology suggests position of stars and planets in time of birth of a human being affects one´s life. That has not any kind of scientific evidence
Answer:
They are based on unscientific methods.
Explanation:
Took the quiz.
Which of these body systems has cells that attach to each other to form a leak-proof barrier?
Select one:
Endocrine system.
Respiratory system.
Reproductive system.
Urinary system.
which of the following is most likely to occur when a barrier develops between two populations of the same species?
1. gene flow between the groups will increase due to more diversity between them
2. the species will become more distinct from each other
3. both groups will go extinct because there are not enough individuals to support them
4. individuals will develop adaptations that allow them to rejoin the other population
Answer:
The answer is 2
Explanation:
If the populations are separated from each other, they will start to be more diverse.
1.6
What does blood consist of?
(2 Marks)
Answer:
blood consists of plasma, red blood cells, white blood cells, and platelets
Explanation:
Can you please help me
how many branches of biology
Answer:
Explanation:
There are three major branches of biology – botany, zoology and microbiology. Botany is the branch of biology which deals with the study of different aspects of plants.
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If the primary consumer level contained 1,500 kcal (joules) of energy, how much energy would be in the tertiary consumer level?
Answer:
15
Explanation:
Divide by 10%
1500
to
150
to
15
What terms correctly define nucleosides?
Nucleosides are polymers that have just a__1__base and a__2___
1.
Nitrogen
Phosphate
Hydrogen
2.
Sugar
Phosphate
Oxygen
Answer:
: a compound (such as guanosine or adenosine) that consists of a purine or pyrimidine base combined with deoxyribose or ribose and is found especially in DNA or RNA
Answer:
What terms correctly define nucleosides?
Nucleosides are polymers that have just a nitrogen base and a sugar .
got 5 out of 5 answers right with this answer
Consider the path that blood takes through the heart and put the following locations in the correct order. The starting point is blood returning to the heart from
systemic (body) circulation.
1. out to the lungs
2. right atrium
3. left ventricle
4. back from the lungs
5. left atrium
6. right ventricle
7. aorta out to systemic (body) circulation
O A6, 2, 1,4,3,5,7
B.2.5, 1,4,6,3,7
C.2.6,1.4,5, 3, 7
O 0.5,3, 1, 4, 2, 6,7
Answer:
C
Explanation:
How do stories differ from scientific explanation?
Bacteria are decomposers that live in soil and water. They feed on dead plants and animals and break them down into simpler elements.
How does the work of decomposers help the ecosystem?
Answer:
Decomposers play a critical role in the flow of energy through an ecosystem. They break apart dead organisms into simpler inorganic materials, making nutrients available to primary producers.
Explanation:
Carbon in the atmosphere would increase/decrease/stay the same because? Carbon in the geosphere would increase/decrease/stay the same because? Carbon in the hydrosphere would increase/decrease/stay the same because?
Answer:
I am working on the same thing for school
A scientist takes some of the genes from one organism and places them into another organism in order to express a desired trait. What is this process called?
A.
genetic engineering
B.
gene pooling
C.
genetic flow
D.
gene mapping
In humans there are 3 alleles that determine blood types: A, B, O. An individual with the genotype AB has type AB blood. This type of gene expression is known as
A. incomplete dominance
B. sex-linked
C. codominance
D. complete dominance
Answer:
C, codominance
What do microbiologists do ? why are their contributions important to science ?
Answer:
Microbiologists study microbes, or microorganisms. They investigate some of the simplest and oldest forms of life on Earth, such as bacteria. Studying these organisms can help scientists trace the evolutionary lineage of more complex organisms. Microbiologists' research is important in developing treatments for infectious diseases that bacteria and other microorganisms cause.
Explanation:
same answer in Edmentum just change up the words
Which characteristic of life best describes the process of homeostasis?
Answer:
Responding to stimuli / the environment
Explanation:
Answer:
A
Explanation:
Why are worldwide CO2 emissions still rising?
Answer:
We are still using things that emit Co2. Fossil fuels, natural gas, etc.
Explanation:
Based on fertility and mortality rates, a developed country will be found in which demographic transition stage?
A
Transitional
B
Industrial
C
Pre-Industrial
D
Post-Industrial
Answer:
can I get a hoyaah because Apple is good for you and others around you
Answer:
industrial i think im not sure might wanna check first
Explanation:
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Which process of alimentary canal that remove undigested food from body? *
3 points
A. Egestion
B. Ingestion
C. Assimilation
Answer:
A. Egestion
Explanation:
Egestion is the removal of undigested food from body.
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how is a representative human bite mark injury described?
A number of major evolutionary innovations arose in the fish lineage. Check all of the evolutionary innovations associated with the fishes.
a) Teeth arose from the rough scales of ancestral sharks.
b) Skeletal developments leading to the amphibian movement onto land probably evolved from lobe-finned fishes.
c) Fish fins are ancestral (homologous) structures to the flippers (forelimbs) of turtles.
d) The anterior gill arch formed the basis for the evolution of the vertebrate jaw.
e) The swim bladder ultimately led to the evolution of the amphibian urinary bladder.
Answer:
a) Teeth arose from the rough scales of ancestral sharks.
b) Skeletal developments leading to the amphibian movement onto land probably evolved from lobe-finned fishes.
d) The anterior gill arch formed the basis for the evolution of the vertebrate jaw.
Explanation:
The animals we know today have physical characteristics that are evolutionary adaptations of characteristics of their ancestors, which have undergone a series of evolutions and modifications over the years giving rise to new species that have resulted in the species we know today. This process of evolutions and adaptations also happened with the ancestral species of fish, which allowed that today, they had characteristics such as teeth and jaws. Many of these evolutions occurred even in different species, such as the evolution that allowed the amphibians to have a skeleton, which evolved from the spine fins of fish.
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Describe the structure of DNA.
Answer:
Explanation:
The DNA structure can be thought of like a twisted ladder. This structure is described as a double-helix, as illustrated in the figure above. ... The sugar and phosphate groups link the nucleotides together to form each strand of DNA. Adenine (A), Thymine (T), Guanine (G) and Cytosine (C) are four types of nitrogen bases.
In corn, yellow seed color is dominant and white seed color is recessive. A certain ear of corn has a mixture of yellow seeds and white seeds. What color seeds could the parents have grown from? (Hint #1: Each corn kernel is a potential seed or “baby corn plant” and therefore, it is an individual offspring. Hint #2: There is more than one possible parental genotype combination for the answer.)
Answer:
I dont even know
Explanation:
pay attention in school
Codominance involves
A. multiple alleles
B. multiple genes
C. multiple chromosomes
D. multiple traits
Answer:
Codominance involves A.) multiple alleles
Answer:
A.) multiple alleles
Explanation:
.