Answer:
Convergent evolution describes evolution toward similar traits in unrelated species.
Explanation:
Jackrabbit
lives in very
hot desert.
Ears cool it off
How do they use their large ears?
Answer:
Explanation:
His massive ears are filled with blood vessels, and because they are so close to the skin, heat dissipates from them. As his blood circulates inside the ears, it cools before circulating back to the body.
The processes we observe today such as weathering, erosion, and
deposition, probably acted in the same way millions of years ago,
producing sedimentary rock. *
O True
O False
True
Explanation:
what are the two processes that lead to genetic variation during meiosis
The recombination and independent assortment.
Someone plz help me :(
A. Warm air rises
Explanation:
Warm air is less dense than cold air so it rises
A. Warm air rises
Hot air is less dense than cold air, which is why cold air sinks because it absorbs less energy than warm air.
Hope it helped:)
what structure marks the superior end of the spinal cord?
Answer: Lumbar and sacral nerves travel nearly vertically down the spinal canal to reach their exiting foramen. The spinal cord ends at the intervertebral disc between the first and second lumbar vertebrae as a tapered structure called the conus medullaris, consisting of sacral spinal cord segments.
Explanation:
a ____ is destruction of the brain tissue caused by lack of blood flow to the brain.
Answer:
A stroke
Explanation:
When proteins are metabolized in the body, the average caloric value is estimated to be ____ kcal/g.
Answer:
4.2
Explanation:
Which of the following is NOT one of the chambers of the heart?
Answer:
c. Mediastinum
Explanation: is correct
The mediastinum is an area. A division of the thoracic cavity
Mediastinum is not one of the chambers of the heart. So, the correct option is (C).
What is Heart?The heart is an organ roughly the size of a fist that pumps blood through the body. It is made up of several layers of tissue present in the center of the circulatory system.
The heart is divided into four chambers with two chambers at the top i.e. atrium, plural atria and two at the bottom i.e. ventricles, one on each side of the heart.
The right atrium contains two large veins that deliver oxygen-poor blood to the right atrium. Superior Vena Cava carries blood from the upper part of the bodyThe right ventricle is the lower right chamber that pumps oxygen-poor blood to the lungs through the pulmonary artery. The lungs reload the blood with oxygen.The left atrium received the blood by pulmonary veins after the lungs fill blood with oxygen. This upper chamber pumps the blood to your left ventricle.The left ventricle is larger than the right. It pumps oxygen-rich blood to the rest of your body.The heart valves act like the doors between the heart chambers which open and close to allow blood to flow through.
The atrioventricular (AV) valves open between the upper and lower heart chambers. They include:
Tricuspid valveMitral valveSemilunar (SL) valves open when blood flows out of the ventricles. They include:
Aortic valvePulmonary valveThus, mediastinum is not one of the chambers of the heart. So, the correct option is (C).
Learn more about Heart, here:
https://brainly.com/question/28465505
#SPJ2
3.
Which of the following is not part of the cell
a. Integral Protein
b. Phospholipid
C.
Nucleic Acid
d. Carbohydrate
Answer:
Phospholipid
Explanation:
Multiple Choice Question Genes, which contain trait specifying information, are located on ______. Multiple choice question. ribosomes nucleotides chromosomes proteins
Chromosomes is a gene that contain trait specifying information
Genes are made up of DNA and its is the basic unit of hereditary. It contains the traits which are passed down from parents to offspring's.
Genes are arranged in structures called chromosomes. A chromosome corresponds to a single gene and it contains the trait specifying information.
Find out more at: https://brainly.com/question/16872411
Name 5 elements that make up the molecules in
living things.
Explanation:
Five elements—carbon, hydrogen, oxygen, nitrogen and sulfur—form the amino acids of proteins, and if we exchange phosphorus for sulfur five elements also compose nucleic acids like DNA.
using half life and the time you just calculated how old is a chicken fossil?
Answer:
66 million years ago
Explanation:
The age of dinosaurs, has been discovered. The tiny fossil, nicknamed the "wonderchicken," includes a complete skull hidden inside pieces of rock, and dates to more than 66 million years ago.
Answer: Now that you know how many half-lives have passed for your fossil, you need to multiply your number of half-lives by how many years are in one half-life. This gives you an age of 2 x 5730 = 11,460 years.
Explanation:
When would a point mutation occur?
A - it can occur after cell division
B - before the cell divides
C - after the cell diides
D - before DNA replication
Answer:
C - after the cell diides
Explanation:
Answer:
The answer is C
Explanation:
I took the quiz!
Mining has been called "the most dangerous job in the world." While mining deaths in the United States have declined in number because of increased safety equipment, deaths and injuries still occur. What kinds of mining accidents can endanger those who work in the mines?
Answer:
Roof collapse,
Runaway mining cars,
Illnesses from mining,
Longwall shed collapse, and.
Lack of safety equipment.
Explanation:
accidents, dust (including poisoning by certain ores), high temperature and humidity, noise and vibration, toxic gases, and miscellaneous other hazards.
Mammals use trees for both food and shelter.
Please select the best answer from the choices provided
T
F
Answer:
True
Explanation:
Full form of DNA is____________
Answer:
Deoxyribonucleic acidExplanation:
#In biology
a countercurrent heat exchanger enables an animal to
Some animals have adaptions to their circulatory system that enable them to transfer heat from arteries to veins, warming blood returning to the heart. This is called a countercurrent heat exchange; it prevents cold venous blood from cooling the heart and other internal organs.
A species name is based on descriptions of:
A genetics and geography
B morphology and genetics
C morphology and coloration
D geography and coloration
Answer:
B morphology and genetics
Explanation:
sorry if I'm wrong
Which pathogen is most likely responsible for causing hoof-and-mouth disease in livestock?
Answer:
Coxsackievirus A16
scientist has been tracking and studying a population of deer in Yellowstone National Park. He surveys the
population every six months. Usually, the population is thriving and has a gene pool with a wide variety of traits. But
during one six-month period, an event occurred that affected the population, and when the scientist returned, the
amount of genetic variation had decreased significantly. Which of the following is most likely the event that occurred
to change the population?
O Yellowstone National Park expanded its borders.
A population
of wolves was introduced into Yellowstone National Park.
• The amount of disease in the deer population decreased.
• More grass and shrubs were planted in Yellowstone National Park.
Answer:
A population of wolves was introduced into Yellowstone National Park.
Explanation:
Got it right on edge
a woman is a healthy carrier of the cystic fibrosis gene (a recessive trait) and her husband is an unaffected male. what is the probability of an unaffected child from this pairing
The probability of having an unaffected child from the pairing = 0.5
Assumption
Let ; X = Dominant trait
y = recessive trait
The woman been a healthy carrier will have an allele combination of ; Xy
while the unaffected male will have = XX
Their offsprings will have the following allele combinations
X X
X XX XX
y Xy Xy
Number of allele combinations = 4
Number of carrier = 2
Number of unaffected = 2
∴ probability of having an unaffected child = 2/4 = 0.5
Hence we can conclude that The probability of having an unaffected child from the pairing = 0.5
Learn more : https://brainly.com/question/15893463
Which human activity has MOST negatively affected air quality?
A.) burning coal
B.) growing crops
C.) using solar energy cells
D.) constructing nuclear power plants
Which human activity has MOST negatively affected air quality?
D.) constructing nuclear power plantsHope it help ;-)
Proteins are polymers constructed from ________ monomers. nucleotide monosaccharide amino acid fatty acid
Where did the Chicxulub asteroid land?
Answer: where did the asteroid that killed the dinosaurs land The Chicxulub crater (/ ˈ tʃ iː k ʃ ʊ l uː b /; Mayan: [tʃʼikʃuluɓ]) is an impact crater buried underneath the Yucatán Peninsula in Mexico. Its center is located offshore near the town of Chicxulub, after which the crater is named.
Explanation:
Based on this phylogeny, the archosaurs are a ______. Multiple choice question. monophyletic group polyphyletic group paraphyletic group
Based upon what we know of phylogeny, we can confirm that archosaurs are considered to be a monophyletic grouping.
Placing a species into the monophyletic grouping indicates that the species in question is among a group of species that all derive from a common ancestor. Therefore, a monophyletic group contains a common ancestor and all of its direct descendants. Studies have shown this to be the case for the archosaurs.
To learn more visit:
https://brainly.com/question/6834801?referrer=searchResults
DMD is a disease that is carried form one gene to another who is the carrier of the genetic disease
Answer:
DMD is inherited as an X-linked disease. X-linked genetic disorders are conditions caused by an abnormal gene on the X chromosome and manifest mostly in males. Females that have a defective gene present on one of their X chromosomes are carriers for that disorder.
Explanation:
this is the correct answer happy
Which of the following steps in wastewater treatment is an example of biotechnology?
I. Microorganisms are added to feed on solids in wastewater
II. Bar screening is used to separate solid wastes from liquid wastes
III. Primary clarifiers separate solids and liquid wastewater
I only
I and III
III only
I, II, and III
#carry on learning
Answer:
A. I only
Explanation:
Microorganisms living in groundwater are constantly consuming dangerous chemicals and lots of organic materials. This process is called bioremediation, which is known to break down pollutants that could be useful in the treatment of wastewater.
which protein makes up the thick filaments of a myofibril?
Answer:
Myosin Makes up the thick filaments of a Myofibril.
Hope It Helps .....
which option is one way that the circulatory system helps maintain body temperature?
Answer:
Vasoconstriction and Vasodilation
Explanation:
explain why a bone is referred to as a living tissue?
Bones are living tissue which have their own blood vessels and are made of various cells, proteins, minerals and vitamins. This structure enables them to grow, transform and repair themselves throughout life.During childhood and adolescence, cartilage grows and is slowly replaced by hard bone.That is why children bones are a little harder to break but adult bone a little easier to break because there bone gets harder when they grow :)
Hope this helps :)
