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olya-2409 [2.1K]
2 years ago
7

Explain why the ocean is not carbon limited?​

Biology
1 answer:
EastWind [94]2 years ago
4 0

Answer:

Due to multiple community guidelines violations your account will be permanently suspended for self promote on 12/6/2020 Vist www.brainly.com to Learn more about your accounts, ban

Explanation:

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Thinking creatively about evolutionary mechanisms, identify at least two schemes that could generate allelic polymorphism in a p
Ede4ka [16]

Complete question:

Thinking creatively about evolutionary mechanisms, identify at least

two schemes that could generate allelic polymorphism in a population except natural selection that favors heterozygotes.

<u>Select the two correct answers.</u>

-inbreeding among individuals in the population

-purifying selection against mutational variants of alleles in the population

-continuous migration of individuals with new alleles into the population

-mutations that do not severely affect viability and reproductivity

-genetic drift of alleles common in the population

-events leading to genetic bottleneck effect

Answer:

The two events that might favor heterozygotes among the options are  

  • The Continuous migration of individuals with new alleles into the population
  • Mutations that do not severely affect viability and reproductivity.  These might favor heterozygous frequencies.

Explanation:

Due to technical problems, you will find the complete explanation in the attached files.

Download pdf
3 0
3 years ago
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
Someone please help me !!
neonofarm [45]

Answer:

A

Explanation:

5 0
3 years ago
Compose a poem about how ones lifestyle can affect the functioning of the respiratory and circulatory system ?
melamori03 [73]
The poem on how one's lifestyle can affect functions of a circulatory and respiratory system.

Daily practices to show
how much you know and make sure that yourself you are growing
You are very ready to keep away those disturbing diseases
which one day they may break your body into pieces.

Breathing in smoke
It allows yourself to be freely choked
Taking your blood and lungs into a problem
And again into a great risk of cold blood.
5 0
3 years ago
Penicillium notatum is a mold that is the source of the antibiotic penicillin. Which is the reason for placing it in the phylum
mafiozo [28]
<span>Penicillium does not seem to have sexual phase</span>
3 0
3 years ago
Read 2 more answers
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