Seedless vascular plants are plants that contain vascular tissue, but do not produce flowers or seeds. In seedless vascular plants, such as ferns and horsetails, the plants reproduce using haploid, unicellular spores instead of seeds.
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A key limitation of the coefficient of community is that it lacks the ability to:
Answer:
calculate the similarity between two communities.
Explanation:
the most prevalent type of antibody in the blood is
Answer:
IgG is the most abundant antibody isotype in the blood (plasma), accounting for 70-75% of human immunoglobulins (antibodies). IgG detoxifies harmful substances and is important in the recognition of antigen-antibody complexes by leukocytes and macrophages.
Explanation:
IgG is the most abundant antibody isotype in the blood (plasma
the spinal cord achieves the function of locomotion through __________.
Answer:
groups of neurons called central pattern generators
The spinal cord achieves the function of locomotion through groups of neurons called central pattern generators, hence option A is correct.
What are the groups of neurons in the spinal cord?Even when cut off from the brain and sensory inputs, "central pattern generators" (CPGs) nerve networks in the spinal cord can generate rhythmic motions like swimming, walking, and hopping.
In the absence of sensory or descending inputs that contain precise timing information, central pattern generators are neural networks that, when triggered, may create rhythmic motor patterns like as walking, breathing, flying, and swimming.
The spinal cord facilitates the movement of bodily components, accidents frequently result in people being unable to utilize certain body parts like the legs.
Therefore, the spinal cord achieves the function of locomotion through groups of neurons called central pattern generators, hence option A is correct.
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The given question is incomplete, so the complete question is,
The spinal cord achieves the function of locomotion through __________.
a)groups of neurons called central pattern generators
b)pools of spinal neurons that receive input from multiple sources
c)involuntary stereotyped responses to stimuli
d)sensory neurons in the brain that initiate walking and determine its speed, distance and direction
e)a flexor reflex
a)groups of neurons called central pattern generators
Pathogens that do not usually cause disease unless the host's immune system is weakened or compromised in some way are known as _________ pathogens.
A major role of _________ receptors (part of the somatic nervous system) is to help us learn about the environment around us or about the state of our internal environment.
The fertilization of an oocyte by more than one spermatozoon which results in embryo death is known as
Answer:
Monospermy and Physiological Polyspermy. In general, the entry of more than two spermatozoa into the egg cytoplasm, referred to as polyspermy, causes aberrant effects on meiosis completion or embryo development and hence embryonic death, due mainly to excess male centrosomes delivered into the egg.
Explanation:
where is dna found in eukaryotic cells? why is this important?
Answer:
nucleus and we need dna so we can figure out people in our past
Explanation:
In eukaryotic cells, DNA is present inside the nucleus of the cell. DNA is important because it codes for life processes, and it transfers to the next generations.
What is DNA?Three subunits, nitrogenous bases, hydrogen bonding, and a phosphorus backbone make up the double helix structure of DNA. It is a component of genetic material found in all living things.
Every organism has a unique strand of DNA. Although DNA is composed of the same components as those listed above, the bases are joined in a different order. Every organism's genetic makeup was altered as a result.
DNA is found inside the nucleus of the cell, and in prokaryotes, it is found in a coiled form in the center of the cell.
Therefore, the DNA is found in the cell's nucleus of eukaryotic cells. DNA is significant because it transmits to subsequent generations and codes for biological functions.
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Along one side of a DNA molecule, the nucleotides are connected to each other by ________ bounds between _______
Answer:
Nucleotides are joined together by covalent bonds between the phosphate group of one nucleotide and the third carbon atom of the pentose sugar in the next nucleotide.
Explanation:
Along one side of a DNA molecule, the nucleotides are connected to each other by covalent bonds between the phosphate group pf one nucleotide and the third carbon atom of the pentose sugar (deoxyribose sugar) in the next nucleotide.
How nucleotides are arranged in DNA?Two nucleotides are attached via a phosphodiester bond to form dinucleotide. Another nucleotides are added in same manner to form polynucleotide chain.
In this polynucleotide chain, the nucleotides are connected to each other by covalent bonds between phosphate group of one nucleotide and third carbon atom of deoxyribose sugar and forms a phosphate backbone of DNA.
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PLEASE HELP ME IM TIMED!
Answer:
Its Only, Oxygen, Nitrogen, and ammonia.
Explanation:
Hope that helped.
If one plant is named Salvia greggii and another is named Salvia vanhouttei, what does this tell you about these plants?
A.) They belong to the same genus and can interbreed.
B.) They belong to the same genus and to different species.
C.) They belong to the same species and to different genuses.
D.) They belong to the same species and can interbreed.
Answer:
They belong to the same species and to different genuses.
Explanation:
if the body cells in individuals of a species have homologous pairs of chromosomes, the species is most likely to be
a.eukaryotic
b. haploid
c. diploid
d. prokaryotic
How does chemotherapy affect cells
Chemotherapy treatments can’t differentiate between cancer cells and healthy cells. That’s why chemotherapy harms or kills healthy cells, as well as cancer cells.
Explanation:
Many common side effects of chemotherapy are caused by the treatment’s impact on healthy cells. These side effects include anemia, a weakened immune system, hair loss, and nausea.
Based on the information in the food web, drag the organism label to the appropriate box to indicate your answer.
Carbon compounds that come from living organisms are called _____ compounds.
Answer: organic compounds
I NEED HELP IDENTIFYING THE STEPS OF MITOSIS!!! PLZ HELP THIS IS DUE TODAY
Answer: phases are prophase, prometaphase, metaphase, anaphase, and telophase
Explanation: i hope this helped
the skeletal system is not responsible for which of the following
Answer:
The skeletal system is the support system for the body. It gives the body shape, form, and mobility while providing protection for sensitive organs. The skeletal system is the support system for the body. It gives the body shape, form, and mobility while providing protection for sensitive organs.
Explanation:
The body is supported by its skeletal structure. It gives the body form, motion, and shape while safeguarding delicate organs. The body is supported by its skeletal structure.
What is skeletal system?The main structural component of your body is the skeletal system. It is made up of bones and connective tissue, such as ligaments, tendons, and cartilage.
Vertebrates are creatures with a spinal column or backbone, including humans. They are supported by a strong internal framework that is built around a noticeable spine.
Our bodies' living bones use oxygen and release waste products throughout metabolism. They have functional tissues that require nutrients, blood flow, and the ability to remodel or change shape in response to changes in mechanical stress.
The skeleton, which is made up of bones, acts as a rigid framework to support and shield the body's soft organs.
Therefore, The body is supported by its skeletal structure. It gives the body form, motion, and shape while safeguarding delicate organs. The body is supported by its skeletal structure.
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(ii) Two grey mice, when mated, produced a total of 8 white, 9 black and 17 grey offspring. Student A suggested that grey coat colour was dominant in the mice. Student B strongly disagreed Which student is right? Explain your answer using appropriate symbols (4 marks)
How would you describe what happened to the matter (atoms, elements, molecules) during the cellular respiration? Explain your answer.
1. Matter was created
2. Matter was destroyed
3. Matter was rearranged
4. Matter went through no changes
1
In (mutualism, parasitism,commensalism) both organisms benefit.
Answer:
Mutualism is a symbiotic relationship in which both species benefit. Commensalism is a symbiotic relationship in which one species benefits while the other species is not affected. Parasitism is a symbiotic relationship in which one species (the parasite) benefits while the other species (the host) is harmed.Do Grocery stores sell toothpaste cost?
Answer:
Yes they do sell toothpaste in grocery store because toothpaste is a essential thing we use in our daily life. The cost may vary from shop to shop. So we can not tell the cost of the toothpaste accurately.
Explanation:
Answer:
english please that made no sense but yes i do believe that stores sell toothpaste
Explanation:
what is the name of the provisional head priestess of the asase shrine?
A site at the 5' end of a gene where RNA polymerase attaches to initiate transcription and control of gene expression occurs is called a/an
Answer:
A site at the 5′ end of a gene where RNA polymerase attaches to initiate transcription and control of gene expression occurs is called a/an
Explanation:
(compound microscope)
1. Put a table lamp in front of the?
2. Put a low-power (, e.g., x5) ________into
the microscope.
3. Rotate a low-power (e.g., x4)
______________into position.
4. Look through the eyepiece. Adjust the __________________ until you see a bright circle of light.
5. Place a slide on the _________, and fix it with the __________. The ___________ on the slide should be right above the hole of the stage.
6. Look at the microscope from the side. Turn the ______
carefully to lower the objective until it is very close to the ________.
7. Look through the eyepiece. Turn the coarse
adjustment knob to raise the objective slowly until
you can see an __________ of the specimen.
7. Turn the ________ to get a sharper image. The image is now in focus.
Choices: microscope, eyepiece, objective, coarse adjustment knob, slide, specimen,
mirror, stage, clips, fine adjustment knob, image
In this exercise it is necessary to fill the gaps with the correct given word. So, the right order of words will be:
1. microscope
2. eyepiece
3. objective
4. mirror
5. stage
6. clips
7. specimen
8. coarse adjustment knob
9. slide
10. image
11. fine adjustment knob.
So, after filling all the gaps, the text and, consequently, the final answer will be:
1. Put a table lamp in front of the microscope.
2. Put a low-power (, e.g., x5) eyepiece into the microscope.
3. Rotate a low-power (e.g., x4) objective into position.
4. Look through the eyepiece. Adjust the mirror until you see a bright circle of light.
5. Place a slide on the stage, and fix it with the clips. The specimen on the slide should be right above the hole of the stage.
6. Look at the microscope from the side. Turn the coarse adjustment knob
carefully to lower the objective until it is very close to the slide.
7. Look through the eyepiece. Turn the coarse adjustment knob to raise the objective slowly until you can see an image of the specimen.
8. Turn the fine adjustment knob to get a sharper image. The image is now in focus.
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Which of the following is (are) part of a systemic immune response?
I. A fever
II. An increase in white blood cells in the body
III. An inflammatory response
I only
II only
III only
I and II only
I, II, and III
Answer:
l, ll, and lll.
Explanation:
Match the vocabulary word with the proper definition.
Definitions
_____ 1. organism that has cells containing a nucleus and other organelles
_____ 2. an organelle inside eukaryotic cells where the DNA is located
_____ 3. cell without a nucleus
_____ 4. a structure within the cytoplasm of a cell that is enclosed within a membrane and performs a specific job
_____ 5. phospholipid bilayer that surrounds and encloses a cell
_____ 6. first person to use the word “cell”
_____ 7. tiny, non-living particles that may cause disease
_____ 8. the material inside the plasma membrane of a cell
_____ 9. cell that contains a nucleus and other organelles
_____ 10. organelle where proteins are made
_____ 11. discovered human blood cells
_____ 12. a single-celled organism that lacks a nucleus
Terms
a. Anton van Leeuwenhoek
b. cytoplasm
c. eukaryote
d. eukaryotic cell
e. nucleus
f. organelle
g. plasma membrane
h. prokaryote
i. prokaryotic cell
j. ribosome
k. Robert Hooke
l. virus
Answer:
1) Eukaryotic Cell
2)Nucleus
3)Prokaryotic cell
4)organelle
5)Plasma membrane
6)Robert Hooke
7)Virus
8)cytoplasm
9)Eukaryote
10)Ribosom
11)Anton van Leewenhoek
12)Prokaryote
who is well known for his theory of evolution
Answer:
Charles Darwin
Hello, can you help me answer this?
____________________________
-5 sentences with verb in the present tense (the verb in bold)
1:
2:
3:
4:
5:
_____________________________
5 sentences with verb in the past
1:
2:
3:
4:
5:
______________________________
5 sentences with future verb
1:
2:
me:
4:
5:
---------------------------------- ACTIVITY 2 ↓
5 sentences with subjunctive verb mood
1:
2:
3:
4:
5:
________________________________
5 sentences with indicative mood of the verb
1:
2:
3:
4:
5:
________________________________
5 sentences with an imperative verb
1:
2:
3:
4:
5:
_________________________________
(PLEASE HELP ME? I give crown
Answer:
(i will bold all verbs)
-sentences with future verb
1. I will go for a run tomorrow.
2. I am going to write my essay later.
3. On Friday, I will walk to the store with you.
4. In ten minutes I will go for a swim.
5. Later I will watch my show.
the type of reproduction by which offspring arise from a single organism, and inherit the genes of that parent only.
Explanation:
A single parent reproduction is called Asexual reproduction
Asexual reproduction is a form of reproduction in which the number of chromosomes or the fusion of gametes is not altered.
What is asexual reproduction?The whole gene pool of their single parent is inherited by the children that are produced by asexual reproduction from either unicellular or multicellular organisms.
With asexual reproduction, just one parent is necessary, two parents participate in sexual reproduction, which results in children with distinct genetic makeup.
A diploid zygote is created during sexual reproduction when two haploid gametes combine during fertilization, budding is an example of asexual reproduction.
Therefore, with asexual reproduction, just one parent is necessary.
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Someone who needs to import wildlife species for scientific research would need to consult the _____ to determine the regulations on moving that species across international borders.
The individual should approach the U.S. Fish and Wildlife Service’s International Affairs Program, in other to determine the regulations on moving that species internationally.
This program through coordinated efforts; protect, restore, and enhance the world’s diverse wildlife resources both domestically and internationally but with a greater focus on international species.
There are different categories of wildlife species based on their abundance and distribution. Some are regarded as foreign endangered and threatened species. And the need to protect these species is priceless.
That's why the import/export of these scarce species is regulated and restricted by laws and legislation.
For whatsoever reason, the U.S. Fish and Wildlife Service’s International Affairs Program should be consulted to determine the movement of these species.
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which pathways compose the autonomic nervous system
Answer:
sympathetic division and the parasympathetic division.
Explanation:
The two divisions of the autonomic nervous system are the sympathetic division and the parasympathetic division.