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Akimi4 [234]
3 years ago
9

All else being equal, as compared to an organism with a lower surface-area-to-volume ratio, an organism with a higher surface-ar

ea-to-volume ratio would likely have less difficulty maintaining a constant internal environment. lose more heat to the environment in cold environments. have greater thermal inertia. lose less heat to the environment in cold environments.
Biology
1 answer:
wlad13 [49]3 years ago
8 0

Answer:

lose more heat to the environment in cold environments

Explanation:

This is because as an animal have large surface area, it is exposed largely and prone to loss of heat. The larger the size of an animal, the larger the surface area and volume. It's surface area expose the tendency for the animal to sweat alot , through sweating heat is loss to the environment. In cold environment, the animal try to maintain internal homeostasis and through this heat is generated and loss to the environment.

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Define the five systems
svlad2 [7]

Answer:

Updated January 28, 2020

By Kevin Beck

Reviewed by: Lana Bandoim, B.S.

The human body that represents your physical life form has a great many tasks to perform in order to keep its owner alive and operational. At each moment, your heart and lungs are working, and a variety of other things are occurring inside you, even as you sleep. Some of these you can feel but not control, such as digestion; others will forever elude your conscious detection.

It is convenient to divide the many components of the body into systems based mainly on function. In some instances, this scheme makes body systems well localized; in others, they are anatomically dispersed throughout the body. Today, most primary sources offer a total of 11 body systems and functions, described in brief detail below.

Body Systems and Functions

As you have probably already concluded, the different human body systems have a vast array of overlapping and complementary functions. The sympathetic and parasympathetic control of heart rate is an example of the nervous system function interacting with the circulatory system. (The parasympathetic effect on heart rate is to slow it; sympathetic input accelerates it.)

Brought to you by Sciencing

The Circulatory System: Also called the cardiovascular system, the heart and blood vessels have the job of delivering oxygen and nutrients to the rest of the body and collecting waste products for removal from the body by other systems.

The Respiratory System: Your lungs allow you to inhale and exhale air to exchange gases between blood and lung space deep within the lungs themselves. The carbon dioxide produced in metabolism is "off-loaded," while oxygen from air is "on-loaded" to red blood cells.

The Skeletal System: Your bones, cartilage and ligaments provide a structural framework for the rest of you, like a scaffolding for organs and tissues. This system affords protection of vital organs and permits locomotion of the organism; the bone marrow in the middle of long bones makes immune cells.

The Muscular System: Muscles comes in three main types. Skeletal muscles move you around and perform other functions when you contract them voluntarily. Smooth muscle lines organs such as the gut and bladder and operates involuntarily. Cardiac muscle is a specialized kind of muscle in the myocardium of the heart.

The Integumentary System: This includes the skin, hair and nails, mostly the former. This physical barrier helps keep out microorganisms, regulates the moisture level of the organism and keeps temperature steady. The skin and other parts of the integumentary system work hand-in-hand with the body's immune system, such as keeping out germs and bacteria. Sometimes the immune system is listed separately from the integumentary system, leading to 12 body systems and functions rather than 11.

The Digestive System: This system converts ingested foods into smaller molecules your cells can harvest energy from.

The Nervous System: Your brain, spinal cord and a great many peripheral nerves make up this system, which is responsible for collecting, processing and transmitting information.

The Endocrine System: When you hear the word "hormones," think "endocrine system." This system regulates the internal environment of the organism via the dispersal of chemicals (hormones) that act at certain receptors throughout the body. The pancreas, pituitary gland and thyroid gland are part of this system,

The Excretory/Urinary System: Your kidneys help eliminate waste by filtering the blood, keep the acid-base levels of the blood steady, and regulate the amount of blood in the body via electrolyte and other solute balance.

The Lymphatic System: The structures in this system of channels are akin to a second circulatory system, which also includes the spleen, make cells that combat foreign invaders and help return tissue fluid to the blood vessels.

The Reproductive System: This system is responsible for creating gametes, or sex cells (testes in males, ovaries in females) that participate in fertilization and propagation of genes into the next generation of organisms. It includes the uterus in females and external genitalia regardless of sex.

Explanation:

6 0
2 years ago
I'm so confused on how to do punnet squares. help?
lubasha [3.4K]
A brown heterozygous rabbit is an animal hat has two different alleles ("B" & "b" are different. One is capital (dominant), and one is lowercase (recessive). a homozygous white rabbit would be someone who has the same alleles. For example, it could have two capital B's (BB) or two lowercase b's. However since we know white fur is recessive and the rabbit is showing recessive WHITE fur, we would represent it as two little b's.

Let's set up our punnett square by drawing a square or box


Then, divide the box up into four equal squares inside the box.

Now, we are going to put our genotypes (Bb & bb) above the box and on the left side ( as shown in the picture.

You cross them kind of like cross multiplying. Remember, the capital B always comes first when needed.

THERE'S YOUR PUNNETT SQUARE! Let's solve the problems.

1.
Genotype is the genetic code. (Ex: Bb, VV, rr)
Phenotype on the other hand is the physical trait (brown fur, blue eyes, rolling your tounge)

So the genotypes of the new generation are Bb & bb

While the phenotypes are brown fur and white fur. Remember, the dominant trait always covers up the recessive. For example, Bb. The rabbit would take brown fur but could give white fur to her offspring because she has a recessive trait for white fur. However, bb would give the rabbit white fur since there is no dominant trait to cover up the recessive.

2.
50% of the rabbit are going to be brown and 50% of the rabbits are going to be white.

This is because the recessive gene isn't covered up by a dominant trait for 50% of the rabbits (bb) but the other 50% will have brown fur because the dominant trait is covering it up.

Hope that clears everything up about punnett squares. Good luck! (:

4 0
2 years ago
Read 2 more answers
What were the three major observations that charles darwin contributed to evolution?
Volgvan

Answer:

The 3 major observations were:

1. More individuals are produced each generation that can survive.

2. Phenotypic variation exists among individuals and the variation is heritable (through parents' genes).

3. Those individuals with heritable traits better suited to the environment will survive.

Explanation:

Charles Darwin was a British naturalist who proposed the theory of known to everyone as  'The Theory of Evolution' through natural selection.

6 0
3 years ago
I'll give likes and thank yous and try to give brainiest! Which of the following organisms are capable of self feritlization?
tino4ka555 [31]

Answer:

A. Plants.

Hope it helps! =)

Brainliest?

8 0
2 years ago
Which countries have the largest carbon footprints in the Oceanic, Asian, European, Caribbean/Central American, South American,
Dmitrij [34]

Answer:

Asia - China (followed by India)

north America - USA (closely followed by canada)

european - Russia ( followed by Germany)

oceanic - Australia

8 0
2 years ago
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