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kap26 [50]
4 years ago
11

Which of the following best defines evolution?

Biology
1 answer:
Nesterboy [21]4 years ago
8 0

Answer:

The correct answer is B. Evolution is best defined in the supposition that a certain group of animals accumulate adaptations overtime, making them better suited to their environment.

Explanation:

Biological evolution is the set of changes in phenotypic and genetic characters of biological populations through generations. This process has caused the diversity of life forms that exist on Earth from a common ancestor. Evolutionary processes have produced biodiversity at every level of the biological organization, including those of species, population, individual organisms and molecular (molecular evolution). All life on Earth comes from a last universal common ancestor that existed between 3800 and 3500 million years ago.

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The response of an effector is:
Yuki888 [10]

Answer:

to transmit an output in response to the total afferent input

Explanation:

An effector refers to parts of the body generates response. An effector responds to transmit an output in response to the total afferent input  Stimulus in the body are detected by the receptor which send signals to the central nervous system via sensory neuron where interpretation and a response is coordinated by the brain. The response is sent to the effector through the motor neuron.

5 0
3 years ago
Someone please help me ! what is a monomer?
STALIN [3.7K]

Answer:

A monomer is a molecule that can react together with other monomer molecules to form a larger polymer chain or three-dimensional network in a process called polymerization.

Examples of the monomers are glucose, vinyl chloride, amino acids, and ethylene.

8 0
3 years ago
Read 2 more answers
Which was the first “cell” viewed by the light microscope? microbe atom DNA oak bark
garri49 [273]

Answer:

Option d (Oak bark) is the correct choice.

Explanation:

  • Throughout 1665, Robert Hooke would be the very first individual who saw cells through some kind of microscopic examination. The innovation as well as advancement and implementation of microscopy allowed this to happen.
  • Microscopic constructions would not have been seen already therefore researchers haven't understood which one living creatures were managed to make from.

The other three alternatives are not related to the given particular instance. So that option d would be the correct one.

8 0
3 years ago
Read 2 more answers
A material transmits some of the light that reaches it, and objects behind the material appear blurred. What type of material is
yulyashka [42]

Answer:

translucent

Explanation:

Transparent means ALL light and ALL shapes are visible through, like a window.

Pigmented means that shapes are visible clearly, but not colors, like sunglasses.

Translucent means that shapes are somewhat visible (v. blurry,) and lights are somewhat also.

opaque is nothing in, nothing out. Solid.

6 0
3 years ago
_____ act as signals or markers to help cells recognize one another.
Varvara68 [4.7K]

Explanation:

-<u>Carbohydrates </u>act as signals or markers to help cells recognize one another.

Carbohydrates are organic macromolecules with a range of functions within organisms. They may act as energy storage, structural support, and signal molecules. Together with transmembrane proteins embedded within the membrane from the extracellular fluid to the cytoplasm, they form glycoproteins (proteins attached to carbohydrates) which function as cell surface markers .

 

Further Explanation:

Carbon, is the backbone of all biological life on Earth. It contains 6 electrons, with 4 on its valence shell, and thus, readily forms covalent bonds with other elements. Covalent bonding involves the sharing of electrons; in nature, this occurs with hydrogen,oxygen, nitrogen, and phosphorus as highly flexible single bonds capable of rotation; rigid, non-rotating  double; and very strong triple bonds. Carbon compounds form rings, and long branched chains- thus, carbon can form macromolecules in nature.

In nature, organic compounds may be large chains of monomers form biological macromolecules which carry out many essential functions in the body. These can include nucleic acids, carbohydrates, proteins and lipids. These are organic molecules, meaning they're ringed or long-chain Carbons bonded to the elements oxygen (O), hydrogen (H), nitrogen (N) and phosphorus (P); they are found in essential organic biomolecules include, proteins, nucleic acids, lipids and carbohydrates.

Carbohydrates function to supply energy and support molecules they consist of mainly sugars or starches in long chains and rings to form monosaccharide monomers. They include monosaccharides, disaccharides and polysaccharides which describes the type of bonding and the degree of complexity of the polymers. Basic makeup: C, H, O -with many polar OH groups

Learn more on  proteins and carbohydrates at brainly.com/question/10744528

Learn more on membrane components at brainly.com/question/1971706

#LearnWithBrainly

3 0
4 years ago
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