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Posted in Biology

The large size of the musk ox _______. a. helps minimize heat loss b. is offset by its long legs c. helps the animal graze less often d. helps maximize heat loss


Answer:

A.  Helps minimize heat loss

Explanation:

The musk ox is found in cold climatic regions. Its larger body size imparts it a smaller surface area relative to its volume. The lesser surface area, relative to its large volume, exposed to the surroundings helps the organism to lose less heat. Hence, a smaller surface area to volume ratio of musk ox, as contributed by its larger body size, help it to stay warm in cold climates.


Related Questions

Posted in Biology

Being nocturnal is an adaptation that plants and animals use to deal with water scarcity and dry climate. Which biome is likely to have the maximum number of nocturnal animals? A.Grassland B.Rain Forest C.Coniferous Forest D.Desert

The correct answer for the given question above would be option D. DESERT. The biome that is likely to have the maximum number of nocturnal animals would be the desert. Being nocturnal, this means being active at night, is an adaptation used by plants and animals in order to cope with the scarcity of water and extreme warm climate. Hope this answer helps.

Posted in Biology

Explain why a population of Mouflon in the Indian Ocean descended from only two individual that had not experienced a loss of genetic diversity was so surprising to scientists.

When populations are dramatically reduced in size, the theory of genetic drift suggests that a loss of genetic diversity should be expected. In the case of the Mouflon, however, no such loss in diversity was observed. This result was extremely surprising to scientists because it meant that the theory of genetic drift does not always hold true.

Posted in Biology

1.compared to adults,a newborn breathes a. a quarter as ofter b.half as often c.the same amount d.four times as often 2.the cluster of air sacs at the end of each bronchiole is called a.bronchi b.traches c.alveoli d.bronchus 3.the flap of elastic cartilage that protect food from entering the larynx is called the a.epiglottis b.glottis c.larynx d.esophagus 4.when blood leaves the lungs it is a.oxygenated b.deoxygenated c.exchanging gases d.rich in carbon dioxide

Here are the answers to the given questions above:
1. Compared to adults,a newborn breathes a quarter as often. The answer is option A. A newborn breathes 30 to 60 times per minute and an adult breathes 12 to 20 breathes per minute.
2. T
he cluster of air sacs at the end of each bronchiole is called Alveoli. The answer is option C.
3. T
he flap of elastic cartilage that protect food from entering the larynx is called the epiglottis. The answer is option A.
4. W
hen blood leaves the lungs it is, oxygenated. The answer is option A.

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A biologist is writing a report about a group of rattlesnakes that all live in the state of Florida. All rattlesnakes in this group can breed with one another and produce offspring that can reproduce together. The report includes statistics about the number of these rattlesnakes, their breeding rate, and the ranges of their sizes and other traits. In this report, the biologist is describing? A.a community in Florida. B.a biome in Florida. C.a population in Florida. D.an organism in Florida.

Answer:

The correct answer is option C, a population in Florida

Explanation:

The population description is an efficient language is termed as demographics. The descriptive components of the demographics are –  

a) Population Size – It gives the number of individuals within a population

b) Population Density – It defines the size of a population with respect to the space occupied by it

c) Age Structure of the Population – It categorizes different individuals in a population group to different age sections

d) Fecundity – It describes about an individual that is able to produce during a given period of time  

e) Morality – It gives the death and birth rate of a population

f) Sex ratio

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Posted in Biology

Secretion of which hormone is controlled by a positive-feedback mechanism? Progesterone Testosterone Oxytocin

Answer:

Oxytocin

Explanation:

Positive feedback mechanism is the one by which the changes leads to more changes of same type.

During child birth, the head of the baby is pressed against the cervix which in turn send the nerve impulses to brain. Brain makes the pituitary gland to secrete the hormone oxytocin. Oxytocin is released in blood and causes the uterine contraction. As labor continues, more stimulation of cervix and intense uterine contractions lead to more release of oxytocin.

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Posted in Biology

Which is larger 8.5 or 8.27?

8.5 is the greater value.

hope this helps you

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Posted in Biology

Which of the following may display two different grain sizes? a. metamorphic rock c. igneous rock b. sedimentary rock d. magma

Answer:

b. sedimentary rock

c. igneous rock

Sedimentary and igneous rocks may display two different pore size. According to a rough estimate the grain size of Sedimentary rocks is 5mm and grain size of igneous rock is 2mm.

Posted in Biology

The organism shown in the drawing usually reproduces through the _________ process called binary fission. A) asexual B) heterosexual C) isosexual D) sexual

The best and most correct answer among the choices provided by the question is the first choice or letter A. The organism shown in the drawing usually reproduces through the asexual process called binary fission. I hope my answers has come to your help. God bless and have a nice day ahead!

Posted in Biology

The Gaia hypothesis is an example of _______. a. positive feedback b. negative feedback c. glacial episodes d. system overload

The Gaia hypothesis is an example of negative feedback.

Further Explanation:

Negative feedback is seen in Gaia hypothesis. This hypothesis is a theory given by James Lovelock stating that organisms interact with their inorganic environment to establish a complex system that will enable them to maintain and survive on the planet. Gaia hypothesis is a theory which is given by James Lovelock. This theory posits that the organic and inorganic components of earth evolved as a self-regulating system or a single living.

In the negative feedback mechanism, there is a negative correlation in between the process rate and the concentration. They control the process rate to prevent substance accumulation. Majorly negative feedback is involved to maintain the homeostasis in the environment. They help in achieving equilibrium state by going back to the normal state.

According to this theory, the living system on the planet automatically controlled atmospheric content, global temperature, ocean salinity, and other factors also which maintain their own habitability. This entity has controlled the self-regulatory negative feedback that helps in keeping the planet conditions within boundaries that are more favorable to an individual’s life.

Learn more:

  1. Learn more about cell organelle brainly.com/question/5923583
  2. Learn more about the diffusion brainly.com/question/1386629
  3. Learn more about the plant brainly.com/question/862697

Answer Details:

Grade: High School

Subject: Biology

Topic: Feedback Mechanism

Keywords:

Negative, feedback, Gaia hypothesis, organic, inorganic, substance, normal state, life, favorable, homeostasis, equilibrium, environment, accumulation, concentration.

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Posted in Biology

Which of the following best describes the solar radiation absorbed by and radiated from earth? a. Most incoming solar energy is absorbed by the atmosphere. b. Only a small fraction of energy radiating from Earth is from the atmosphere. c. The Earth’s surface is responsible for a small fraction of heat radiation to space. d. Earth’s surface absorbs little of the energy that strikes as solar radiation.

Answer: c. The Earth’s surface is responsible for a small fraction of heat radiation to space.

Explanation:

In later ages the large amount of sun's energy is reflected back by the terrestrial surface back to the space. But now due to the abundance of large concentration of greenhouse gases in the atmosphere is responsible for the absorption of thermal energy from sunlight by these gases causing the atmosphere to be hot. This is the reason of global warming. Now only small fraction of heat is radiated back to the space.        

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Posted in Biology

Who invented found that animals are composed of cells

Theodor Schwann discovered that animals are composed of cells.

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Posted in Biology

__________ energy is the energy that it takes to remove an electron from its shell. Question 2 options: Ionization Electron Polar Quantum Save

Ionization energy is the energy that it takes to remove an electron from its shell.

So, option A is your answer!

Hope this helps!

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Posted in Biology

Leaves with carotenoid pigment turn _________ during the fall. a. red and green b. yellow and orange c. green d. brown and yellow

The correct answer is option (b). yellow and orange.

The carotene or tetraterpenoids is a class of pigment produced by many organism including plants and the fungi. This pigment gives the yellow and the orange color to the leaves.

Generally, the leaves are green colored, due to the presence of chlorophyll, but during the fall, the amount of chlorophyll is decreased and the carotene gives a orange or yellow color to the leaves.

Posted in Biology

Cholera develops when the bacterial toxin

Cholera develops when the bacterial toxin prevents G-protein inactivation , which leads to the continuous production of cAMP.

Posted in Biology

The responsible management (use and conservation) of the earth's resources indefinitely using science-driven policies and practices is called ________.an environmental conservation trustthe maximum sustainable yieldsustainable developmentlandscape ecology

The correct answer that would best complete the given statement above would be the first option. The responsible management (use and conservation) of the earth's resources indefinitely using science-driven policies and practices is called an environmental conservation trust. Hope this answer helps.

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Posted in Biology

Unlike rocks, all minerals ________ and ________. A are expensive, are difficult to get B occur naturally, have a fixed chemical composition C contain metal, dissolve in acid D fracture, contain silica

The correct answer is B!

Why is this?

A mineral is a naturally occurring, inorganic solid with a definite crystalline structure and chemical composition. All minerals contain one or more elements, which are pure substances that cannot be broken down into simpler substances by chemical means.

Posted in Biology

This system relates to the structure and support of an organism. It is made of salts and proteins and found in vertebrate animals.

The skeletal system relates to the structure & support of organisms; made of salts and proteins which are found in vertebrate animals and also protects internal organs

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