Answers
8 B
9 B
10 D
11 C
12 C
13 B
14 A
15 A
16 C
17 A
18 A
19 D
20 A
21 D
22 D
Related Questions
Which two Neolithic activities came about because of climate change?
Answers
Answer:
1. Domesticating animals
2. Farming grains
Explanation:
Poeple started doing these without machines because of climate change.
Consider that a certain gene is a maternal effect gene and that the allele for dark brown pigment is incompletely dominant to the allele for no pigment (white). The incomplete dominant phenotype is light tan. If a white female is crossed with dark brown male, what will be the phenotypic ratio of the progeny?
A) all white
B) all dark brown
C) all light tan
D) either all white or all light tan
E) either all light tan or all dark brown
F) none of the above choices (cannot be determined)
Answers
Answer:
The correct answer is C. All light tan
Explanation:
You will find the answer and explanation in the attached file due to technical problems.
Recent research has found that on one island of the Galapagos two finch species interbred. This interbreeding may have resulted in a hybrid species that ultimately led to the extinction of one of the species Darwin discovered. They call this speciation in reverse, or despeciation. Based on what you know about speciation, why are these terms appropriate?
Answers
Answer:
Speciation is defined as an evolutionary process in which one population evolves into a distinct species.
Speciation in reverse, or despeciation is defined as the extinction of an old species due to combining with evolved species to produce hybrid species but it conserves biological lineage.
In the given research, the term used despeciation or speciation in reverse is appropriate as hybrid species resulted from interbreeding of Galapagos two finch species conserved the biological lineage but also loss one of the species Darwin discovered.
Answer:
Speciation is the method by which unique species evolve from a common ancestor. In this case, two of these species that split from a common ancestor interbred and created a hybrid. This hybrid was apparently stronger and possibly better adapted to the environment, which led to extinction of a species formed by the initial speciation event.
Explanation:
Plato
How are red blood cells able to move through narrow vessels to carry oxygen throughout a multicellular organism? (1 point) a)They are flexible because they lack a plasma membrane. b)They are small because they lack a nucleus. c)They are long and thin with a tail-like end. d)They are small because their organelles are smaller than those of other cells.
Answers
Answer:
The correct answer is - option B. They are small because they lack a nucleus.
Explanation:
Red blood cells or erythrocytes are specialized cell that produce in bone marrow and have specific role such as carrying oxygen from lungs to deliver it to the various organs and carry out carbon dioxide.
In mammals these cells lack cell organelles such as nucleus and mitochondria, a major factor that determined its smaller size. The size of RBC are move through narrow vessels throughout a organism because of its specific size and shape that provide it space for hemoglobin and allow to be flexible and bend to move through narrow vessels.
Thus, the correct answer is : option B. They are small because they lack a nucleus.
If the Gulf Stream stopped running, how would the climates of North America and Europe be affected?
Answers
Answer: Land would become infertile, habitat loss, & environmental changes
Explanation:
Because there wouldn't be alot of water to keep the soil moist, therefore the ground would begin to harden and get dry. :)
If the Gulf Stream stopped, the climates of North America and Europe would be colder and drier.
The gulf stream is a huge current of warm and fast-moving ocean water. This ocean current plays a key role in regulating temperatures across the globe and has an impact on the frequency and intensity of storms and rainfall. The collapse and stoppage of this stream will cause an array of problems, including but not limited to:
Reduced rainfallLower temperaturesFewer stormsAreas that would be particularly affected by this are North America and Europe. This is due to the direction that the gulf stream flows, carrying warm water along these boundaries.
The vast amount of warm water carried by this stream explains how it is able to affect the average temperatures of these coastal areas, with the disappearance of the stream, temperatures in North America and Europe would initially decrease.
The warm water carried by this current is also responsible for increased rainfall. Warm water on the surface of the ocean is heated by the sun and evaporates, creating clouds, which then provide rain. The absence of this current would dramatically affect cloud formation and reduce the amount of rain severely. This can lead to droughts and reduced agriculture.
Though Fewer storms may seem like a positive impact, it is not entirely. Storms play a crucial part (together with ocean currents) in regulating global temperatures, as well as provide a source of rainfall to end droughts and promote biodiversity in areas that depend on water and humid climates.
The gulf stream is important for maintaining climates and rainfall. If it were to stop, climates in North America and Europe would be colder and drier.
For more information on ocean currents visit:
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Which of the following can a chemical bond do?
A. Change element properties
B. Store energy
OC. All of these
D. Release energy
Answers
Explanation:
The following can a chemical bond do is all of these. The correct option is C. All of these.
What is a chemical bond?A chemical bond is a bond formed between two elements. The energy of the reaction is stored in the bonds when the reaction happens, the energy is released from the bonds. It also changes the chemical properties of the elements.
Thus, the correct option is C. All of these.
Learn more about chemical bond
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What are the similarities and differences between prokaryotic cells and eukaryotic cells?
Answers
A client reports extremely frequent urination, sometimes urinating 10 to 12 times each day.
What fluid balance disorder would be expected with these symptoms?
Answers
Answer:
Lack of Antidiuretic hormone.
Explanation:
Antidiuretic hormone is a type of hormone which is responsible for controlling urination. It is produced in hypothalamus which is a part of a brain. Antidiuretic hormone is responsible to tell the kidney how much water in the body should be conserve to avoid dehydration. If less antidiuretic hormone is produced by the body so more urine is produced. Frequent urination is also occurs due to Diabetes insipidus. This disease produce more urination in order to control the concentration of glucose in the blood.
You are part of a research group that is attempting to improve on the beneficial genetic modification of golden rice, to further reduce
global hunger issues. Which of the following difficulties will you NOT encounter?
A. The genes could transfer into local wild plants
B. The seeds could be expensive,
C. The modified crops could make people very sick.
D. Biodiversity could be reduced,
Answers
Answer:
C.
sorry if this is wrong
If I were a part of a research group that is attempting to improve on the beneficial genetic modification of golden rice, to further reduce global hunger issues, then I would not encounter that the seeds could be expensive.
What is golden rice?Golden rice is genetically modified rice that contains provitamin A. This compound is responsible for the yellow-orange color of the rice, hence the name golden rice.
Golden rice can prevent vitamin A deficiency.The crop is available in countries such as Indonesia, Bangladesh, and the Philippines.It is much cheaper than the normal white rice available in the market.Golden rice is the modified version of normal rice which no additional cost and with enriched nutrients.Hence, option B is the right answer.
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What type of transmission occurs when a pathogen is spread though sneezing or coughing
Answers
Answer:
air transmission
Espero que te sirva
The field of inquiry that studies human culture and evolutionary aspects of human biology; includes cultural anthropology, archeaology, linguistics, and physical, or biological anthropology. __________
Answers
Answer:
physical, or biological anthropology.
Explanation:
When there is a need to study human kind through the X-ray of relationships between human biology, its cultural diversity, and evolution ,the aspect anthropology for this is Biological anthropology.
Therefore biological anthropology is concerned about how the interaction between the cultural diversity and biological process results in the adaptations of mankind to different environments.The influence of these on growth, behaviours, existence.
The primary focus of biological anthropologists is to study in details the concept of ,mechanism of variation, adaptation.and how these lead to evolution and origin of mankind.
Sequel to this ,most evidences for this concept are obtained from the study of fossil materials,study of other related primates to man, and components of functional biology and genetics.
Squamous cells specialize in what function? A) the secretion of enzymes B) diffusion of gasses C) the absorption of nutrients D) none of the above
Answers
Answer:
The abosbton of nutrients
Challenge Question! If a pregnant woman had a karyotype prepared for her baby before birth, would it be more useful in predicting the risk of Down Syndrome or Tay Sachs disease?
Answers
Answer:
Yes
Explanation:
Karyotype involves the process of viewing a persons chromosomes through Sophisticated equipments.
Down Syndrome or Tay Sachs disease are genetic diseases associated with chromosomal defects.
Having a karyotype prepared for her baby before birth, would be more useful in predicting the risk of Down Syndrome or Tay Sachs disease.
Which of the following properties is the temperature at which a liquid turns to gas? (3 points)
оа
Magnetism
Ob
Thermal conductivity
ос
Melting point
Boiling point
Od
Answers
thermal conductivity
Answer:
Boiling point
Explanation:
I did the test
what are the advantage of the presence of hydrogen in large scale in the sun ?
Answers
hydrogen is essential to nuclear fusion. hydrogen is the fuel the sun burns. we don't have to burn solar energy, so there's no smoke and pollution
Answer:
Hydrogen fusion reaction is the one which provides so much light and heat (in short, energy) which escapes into space and spread. If Hydrogen on sun ends, It will lose its warmth (and may be soon become a planet, but will surely be a dead star).
Explanation:
Answer from Gauth math
Which statement applies only to the axial skeleton not the appendicular skeleton
Answers
What happen to the cell if nucleus is removed?
Answers
If the nucleus is removed from the cell, the cell will die as the nucleus is the living component of the cell.
Hope you understand❣
Answer:
Nucleus is the boss of the cell who control all the activities take place in the cell . so if the nucleus is not there no process will be taken and the cell will die .
Hope i helped u mate.
While cooking, Lisa spills boiling water on her hand. Her skin turns blotchy with blisters. Which type of burn does she have? A. first-degree burn B. second-degree burn C. third-degree burn
Answers
Answer:
B
Explanation: First degree only makes the skin turn red
In prokaryotic cells, regulator proteins bind to a section of DNA called alan (1 point)
O repressor
o promoter
O chromatin.
o operon.
Answers
Answer:
promoter
Explanation:
Answer: Operon
Explanation:
What is the function of bile in the digestion of fats in the small intestine?
Answers
Answer:
Bile is a fluid that is made and released by the liver and stored in the gallbladder. Bile helps with digestion. It breaks down fats into fatty acids, which can be taken into the body by the digestive tract.
Explanation:
When digesting fats, bile acts as an emulsifier to break the large fat globules into smaller emulsion droplets. Emulsified fats provide a larger area for the fat-digesting enzymes (lipase) to act, making the process quicker. Bile acts as a good solvent.
I 4. Rewrite the sentence correctly. “All the organelles shown in the typical plant or animal cell will exist in every cell”.
Answers
All the genetic materials shown in the typical plant or animal cell will exist in every cell”.
HOPE SO IT HELPS YOU
The backbone vertebrae, skull, and rib cage make up the _______ skeleton. Among other types of cells, bone marrow produces _______ blood cells, which carry oxygen in the blood. _______ can eventually become osteocytes. If bones rapidly deconstruct faster than new bone tissue grows, this can lead to less dense and more fragile bones. When severe, this condition is called _______. _______ such as the MCL and ACL connect bone to other bone at joints.
ANSWERS :
1.axial
2. red
3. Osteoblasts
4. osteoporosis
5. Ligaments
6. Osteoblasts are cells that build bone tissue, and are called osteocytes when they become surrounded by the bone that they have built. Osteoclasts are cells that break down bone tissue. The building and breaking down of bone tissue continues throughout a person’s lifetime and makes bones strong. If osteoclasts break down more bone than osteoblasts build, this can lead to osteopenia and osteoporosis, causing bones to be fragile and break more easily.
Answers
Answer:
1. axial
2. red
3. Osteoblasts
4. osteoporosis
5. Ligaments
Explanation:
The axial skeleton consists of the bones of the head and trunk of a vertebrate including skull, and rib cage.
Bone marrow produces red blood cells, which carry oxygen in the blood.
Osteoblasts can become osteocytes, which are the third type of bone cells.
Osteoporosis is a bone resorption disease in which bones rapidly deconstruct faster than new bone tissue grows, and decreases the mechanical strength of bones.
Ligaments connects one bone to other at joint such as medial collateral ligament (MCL) and anterior cruciate ligament (ACL) that joins knee.
Hence, the correct answer for the question is as follows:
1.axial
2. red
3. Osteoblasts
4. osteoporosis
5. Ligaments
Answer:
1. axial
2. red
3. Osteoblasts
4. osteoporosis
5. Ligaments
6. Osteoblasts are cells that build bone tissue, and are called osteocytes when they become surrounded by the bone that they have built. Osteoclasts are cells that break down bone tissue. The building and breaking down of bone tissue continues throughout a person’s lifetime and makes bones strong. If osteoclasts break down more bone than osteoblasts build, this can lead to osteopenia and osteoporosis, causing bones to be fragile and break more easily.
Explanation:
Penn Foster
Describe at least 2 benefits and 2 drawbacks there might be for animal cells (including humans) to make their own food through photosynthesis.
Answers
Answer:
Explanation:
Benefits
Animals will not depend on plant source again for their food but have it produced directly by themselves because photosynthesis will allow animal produce their own food
Animal will get a direct source of energy for their activities. Energy is derived from food consumed after the food has been broken down in the body system of animal. Animal photosynthesis will give animals access to direct source of energy as the product their food.
Demerit
Animal lacks chlorophyll the green. Pigment in plant that light hit on absorption that will enable them to photosynthesis.
Animal lacks ways or mechanism of regulating Carbondioxide in take as in the case of C4 plant and crassulacean metabolic pathway (CAM).
Animals such as human will not have access to varieties of food but stick to photosynthate produced by them.
Como harías para ver microorganismos del suelo con plantas y del suelo sin plantas
Answers
Answer:
i didn't understand what you told
The maps below represent the same area of the Amazon rainforest over an 8-year period as humans moved into the rainforest. Forested areas are shown in deep green, and cleared areas are tan (bare ground) or light green (pasture land). Which of the following statements is best supported by evidence from the maps? A. This area became more densely populated with trees between 2000 and 2008. B. Humans living in this area began an extensive forest restoration program between 2000 and 2008. C. Humans began leaving this area to find jobs in nearby cities between 2000 and 2008. D. This area changed appearance between 2000 and 2008 because trees were cleared.
Answers
Answer:
D.)
Explanation:
am smart
Answer:
D. This area changed appearance between 2000 and 2008 because trees were cleared
Explanation:
I got it right on study island
This category of plants does not have vascular tissue or seeds. Question 3 options: Angiosperms Gymnosperms Ferns Mosses
Answers
Answer:
Mosses
Explanation:
Mosses are the category of plants that does not have vascular tissue or seeds while angiosperm, gymnosperms, and ferns have vascular tissues and seeds.
Due to absence of vascular bundles or veins, the mosses also lack stems, true roots, and leaves. some of the examples of mosses are: liverworts, hornworts, and Ricceia natans etcetera.
Hence, the correct answer is "Mosses".
Answer:
Mosses
Explanation:
Mosses are the category of plants that do not have vascular tissue or seeds. Ferns do not have seeds, but do have vascular tissues. Angiosperms and gymnosperms have vascular tissue and seeds.
Professor George Palade’s elegant experiment to follow protein synthesis and trafficking, published nearly 60 years ago, provided us with a great deal of information and has been used as a tool by several investigators. If you had access to all the reagents needed to repeat the in vitro experiment, describe what you would need to do to see the progression of newly synthesized proteins and their transport in the cell.
Answers
Answer:
The interpretation including its particular topic is demonstrated in the following portion on the interpretation.
Explanation:
After experiments with Guinea Pigs, Palade transitioned to anything in vitro research in which sections of pancreatic tissue had all been subjected to a pulsed radioactive lysine for something like a shorter amount of time. The radiation leucine pulse must have been subsequently adopted with nonradioactive leucine, as well as the pieces have been fixed but instead analyzed besides electron microscopy as well as transmission line during some different points in time.Effects from either the radioactive elements with leucine throughout the reflective coating surrounding the tissue fragments formed autoradiographic particles.Such granules eventually passed forward towards the Golgi throughout corresponding different points in time, as well as subsequently towards the cell membranes, whereby they seemed equipped for induction as established zymogen granulates.4. Unlike a scientific theory, a scientific law describes an observed pattern in nature without
attempting to explain it.
O true
Ofalse
Answers
Answer:
False
Any discovery must first be tested and have an explanation
Match each term with the best description.
a. Membrane-bound structure that supports energy production.
b. Semi-permeable, living covering of the cell.
c. Long, whip-like appendage used for locomotion.
d. Membrane-bound structure containing the hereditary material of the cell.
e. Gel-like substance encompassing the contents of the cell
f. Basic structural and functional unit of living orgaisms
1. Cell
2. Cell membrane
3. Cytoplasm
4. Flagellum
5. Mitochondrion
6. Nucleus
Answers
Answer:
a) 5. mitochondrion
b) 2. cell membrane
c) 4. flagellum
d) 6. nucleus
e) 3. cytoplasm
f) 1. cell
You get the idea to go check to see if you grandmother's car is missing so you go into the garage and find her car there, with the keys in the ignition, and this piece of paper on her front seat. Can you uncover the code she left you?
attached below
Answers
Answer:
A2 B1 C4 D1
Explanation: