1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
deff fn [24]
2 years ago
8

All living things have internal that helps them carry out basic functions.​

Biology
2 answers:
lara [203]2 years ago
7 0

true

................................

ehidna [41]2 years ago
3 0

Answer:

True

Explanation:

By the end of grade 2. All organisms have external parts. Different animals use their body parts in different ways to see, hear, grasp objects, protect themselves, move from place to place, and seek, find, and take in food, water and air. Plants also have different parts (roots, stems, leaves, flowers, fruits) that help them survive, grow, and produce more plants.  

By the end of grade 5. Plants and animals have both internal and external structures that serve various functions in growth, survival, behavior, and reproduction. (Boundary: Stress at this grade level is on understanding the macroscale systems and their function, not microscopic processes.)  

By the end of grade 8. All living things are made up of cells, which is the smallest unit that can be said to be alive. An organism may consist of one single cell (unicellular) or many different numbers and types of cells (multicellular). Unicellular organisms (microorganisms), like multicellular organisms, need food, water, a way to dispose of waste, and an environment in which they can live.  

Within cells, special structures are responsible for particular functions, and the cell membrane forms the boundary that controls what enters and leaves the cell. In multicellular organisms, the body is a system of multiple interacting subsystems. These subsystems are groups of cells that work together to form tissues or organs that are specialized for particular body functions. (Boundary: At this grade level, only a few major cell structures should be introduced.)  

By the end of grade 12. Systems of specialized cells within organisms help them perform the essential functions of life, which involve chemical reactions that take place between different types of molecules, such as water, proteins, carbohydrates, lipids, and nucleic acids. All cells contain genetic information in the form of DNA molecules. Genes are regions in the DNA that contain the instructions that code for the formation of proteins, which carry out most of the work of cells.  

Multicellular organisms have a hierarchical structural organization, in which any one system is made up of numerous parts and is itself a component of the next level. Feedback mechanisms maintain a living system’s internal conditions within certain limits and mediate behaviors, allowing it to remain alive and functional even as external conditions change within some range. Outside that range (e.g., at a too high or too low external temperature, with too little food or water available), the organism cannot survive. Feedback mechanisms can encourage (through positive feedback) or discourage (negative feedback) what is going on inside the living system.

A central feature of life is that organisms grow, reproduce, and die. They have characteristic structures (anatomy and morphology), functions (molecular-scale processes to organism-level physiology), and behaviors (neurobiology and, for some animal species, psychology). Organisms and their parts are made of cells, which are the structural units of life and which themselves have molecular substructures that support their functioning. Organisms range in composition from a single cell (unicellular microorganisms) to multi-cellular organisms, in which different groups of large numbers of cells work together to form systems of tissues and organs (e.g., circulatory, respiratory, nervous, musculoskeletal), that are specialized for particular functions.  

Special structures within cells are also responsible for specific cellular functions. The essential functions of a cell involve chemical reactions between many types of molecules, including water, proteins, carbohydrates, lipids, and nucleic acids. All cells contain genetic information, in the form of DNA. Genes are specific regions within the extremely large DNA molecules that form the chromosomes. Genes contain the instructions that code for the formation of molecules called proteins, which carry out most of the work of cells to perform the essential functions of life. That is, proteins provide structural components, serve as signaling devices, regulate cell activities, and determine the performance of cells through their enzymatic actions.

You might be interested in
Suppose that a dominant allele (P) codes for a polka-dot tail and a recessive allele (p) codes for a solid colored tail. In addi
Amiraneli [1.4K]
I believe the answer is c) 9:3:3:1 ratio (9 polka-dot tails and short eyelashes, 3 polka-dot tails and long eyelashes, 3 solid tails and short eyelashes 1 solid tail and long eyelash)
4 0
2 years ago
What are some of the problems associated with aquaculture?
ch4aika [34]

Answer:

Explanation:

Pollution: The farming of marine fish, crustaceans and even bivalves produces waste in the form of fecal matter and unused feed. These largely nitrogen-based wastes can cause oxygen depletion in coastal environments and a net loss of marine productivity in certain coastal areas.

7 0
3 years ago
During a light-independent reaction, carbon dioxide is fixed by adding it to a
kvv77 [185]

Answer:

2 Carbon compound

Explanation:

6 0
3 years ago
In what biome would you expect the least precipitation?
Over [174]
The answer would be D
7 0
3 years ago
Read 2 more answers
The _______is a large, heavy bird that is rarely seen out of water.
BARSIC [14]

Answer:

hawk prolly

Explanation:

3 0
2 years ago
Other questions:
  • Which intercellular communication type changes membrane permeability?
    7·2 answers
  • What is the maximum number of hours that good can be held in the danger zone?
    12·1 answer
  • What kind of information is carried by the ventral roots of the spinal cord?
    10·1 answer
  • What is the difference between a dominant trait and a recessive trait?
    5·1 answer
  • Which of the following would decrease the resistance to the flow of an electric current through a body?
    9·2 answers
  • After replication, ________. each new DNA double helix consists of two old strands each new DNA double helix consists of one old
    10·1 answer
  • When cells perform photosynthesis, they transform energy from one form to another. Which of the following takes place during pho
    6·2 answers
  • Chromosome pair 23 are the sex chromosomes and are responsible for determining the gender of a human. The large chromosome is an
    14·1 answer
  • Which of the following is false? Tissues are made of cells. Organs are made of tissues. Cells are made of tissues. Body systems
    9·1 answer
  • Photosynthesis ceases when leaves wilt, mainly because A. the chlorophyll in wilting leaves is degraded. B. accumulation of CO²
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!