In 1859, Charles Darwin described a model of how living things change over time. He described this model and the evidence that supported it in a book called On The Origin of Species. Which scientific term is used to describe a testable model that seeks to explain natural phenomena?

Answers

Answer 1
Answer: The natural selection process ensures that the weak members or traits of organisms are removed so that only the strong will remain. This ensures that the organisms and their descendants will live for as long as possible. This is the process by which organisms evolve to allow for higher survival rates. For example, an animal that is covered by thick and multiple layers of fur is made for the extremely cold climates. However, if the world begins to get warmer and warmer, such animals and their offspring will begin to have thinner and thinner layers of fur. This will allow their specie to survive longer. 
Answer 2
Answer:

Answer:

D. Theory

Explanation:


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Which of the following is a characteristic that all prokaryotic and eukaryotic cells share?Use of chloroplast to create food.
Use of mitochondria to obtain energy.
Presence of a cell wall to maintain osmotic pressure.
Presence of DNA to store heredity information.

Answers

 eukaryotic cell has a plasma membrane ribosomes. However, unlike prokaryotic cells, eukaryotic cells have: a membrane-bound nucleus. also

Who proposed that new cells formed other cells?

Answers

It was Mr. Robert Remak who discoved that new cells are formed from the pre –existing cells. Later on Mr. Rudolf Virchow was the first to accept Mr. Robert’s concept of cell theory and their emergence. Remak found this theory when he was observing red blood cells (RBCs) in the embryo of chicken at all stages of division.

The cell theory is given by Theodor Schwann, Matthias Schleiden, and Rudolph Virchow.

Further explanation:

Cells are the smallest unit of life. It is an essential matter of living. It can be eukaryotic and prokaryotic cells. Eukaryotic cells have a nucleus (DNA) packed within the nucleus membrane, whereas prokaryotic cells have circular DNA, which is called a nucleoid. Cells are consisting of cell organelles that help in performing all the cellular activity.

The cell theory defines the basic theory of life that all the living things are formed from the smallest unit called a cell. This theory is proposed by Theodor Schwann, Matthias Schleiden, and Rudolph Virchow. It explains that the cells are formed from pre-existing cells, not from spontaneous generation.

The modern cell theory explains that energy is formed within the cell. The mitochondria, also are known as the powerhouse of the cell, helps in the formation of energy in the form ATP (Adenosine Triphosphate). It also explains that cell is the medium through which hereditary information is transformed from one generation to another generation. The nucleus of the cell contains DNA (Deoxyriboses nucleic acid) that carries genetic characteristics. All the cells, either eukaryotic or prokaryotic, have the same chemical composition.

Learn More:

1. Learn more about meiosis brainly.com/question/1600165

2. Learn more about the process of molecular diffusion in a cell brainly.com/question/1600165

3. Learn more about human sperm and egg cell brainly.com/question/1626319

Answer Details:

Grade: High School

Subjects: Biology

Topic: Human Physiology

Keywords:

Cell, smallest, eukaryotic, prokaryotic, DNA, organelle, spontaneous, mitochondria, energy, adenosine triphosphate, hereditary, genetic, characteristic, chemical.

At which location in Earth’s interior does the top density continue to increase as thickness decreases? inner core outer core lower mantle upper mantle

Answers

Answer: At the inner core of the earth interior, top density continue to increase as thickness decrease.

Explanation:

The Earth is the third plant from the sun and the fifth largest plant. It is the only planet that can harbor life, that have oxygen in the arthmosphere and oceans on the surface. The Earth have three main layer which are the core(the outer and inner core), the mantle and the crust. All the three layers support life existence. The earth inner core is the innermost geologic layer and it is hot and denser. It is a solid ball of 1,220 kilometers. The earth inner core has the highest density (12)than all other layers and it is less thicker than mantle and the crust. Density increase with depth because the pressure increases also.

Answer:

inner core

Explanation:

just took on edge 2021

The skeleton of a vertebrate isa. internal and made of bones.
b. made of muscle and very strong.
c. surrounded by a hard shell.
d. controlled by fluid pressure. Reset Selection

Answers

The answer is a. internal and made of bones. 

The skeleton of the vertebrate is internal (endoskeleton) and it develops within the skin. It is made of bones, relatively rigid structures, joined by more flexible structures. 

Which of the following features differentiates sporozoans from the other phyla of protozoans?

Answers

Firstwe have to know that sporozoans are a strictly parasitic protozoanthat are usually immobile. Of the following features the one thatdifferentiates protozoans from the other phyla of protozoa is:


Answer:A) Sporozoans lack locomotor organs.


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Which of the following are the parts of neurons?A: Brain, spinal cord, and vertebral column

B: Dendrite, axon, and cell body

C: Sensory and Motor

D: Cortex, medulla, and sheath

Answers

B: Neurons have dendrites, axons, and a cell body