Creates a barrier between the inside of the cell and the outside of the cell​

Answer:

when the sporangia dry out they break and is released to the air

Answer:

C. a tropical rain forest

Explanation:

Dont have a explanation nut i hopes this help.

In a food web, if a secondary consumer were removed, another secondary consumer would replace it. A food web is a series of organisms that transfer energy in the form of food from one organism to another. Option D is correct.

It's made up of different food chains, which show the transfer of energy from one organism to another.A food chain is a linear arrangement of organisms in which one organism consumes the organism below it in the chain. Producers, primary consumers, secondary consumers, and tertiary consumers are all components of food chains.

In a food web, energy flows from producers to primary consumers, from primary consumers to secondary consumers, and from secondary consumers to tertiary consumers. If a secondary consumer were removed from the food web, the food chain would be impacted. However, the food web as a whole will not collapse.

Another secondary consumer would replace the removed secondary consumer. For example, if a hawk, which is a secondary consumer, were removed, another secondary consumer like an owl would replace it. Option D is correct.

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The pressure of the blood returning to the fish heart is lower than the pressure of the blood returning to the human heart due to differences in their circulatory systems.

A) The concentrations of gases in the blood leaving the fish heart are different from those leaving the human heart because of the differences in their respiratory systems. Fish have gills that extract oxygen from water, which contains a lower concentration of oxygen than air.

Therefore, fish have to extract more oxygen from the water, which results in higher concentrations of oxygen in their blood. In contrast, humans have lungs that extract oxygen from air, which has a higher concentration of oxygen than water. This results in lower concentrations of oxygen in the blood leaving the human heart.

B) The pressure of the blood returning to the fish heart is lower than the pressure of the blood returning to the human heart because fish have a single circulatory system, while humans have a double circulatory system. In a fish, the blood flows from the heart to the gills, where it picks up oxygen and releases carbon dioxide, and then flows to the rest of the body.

The pressure in the gills is lower than the pressure in the rest of the body, which creates a pressure gradient that facilitates the flow of blood. In contrast, humans have two separate circuits - the pulmonary circuit, which carries blood to and from the lungs, and the systemic circuit, which carries blood to and from the rest of the body. The pressure in the systemic circuit is higher than the pressure in the pulmonary circuit, which facilitates the flow of blood in both circuits.

Therefore, the pressure of the blood returning to the fish heart is lower than the pressure of the blood returning to the human heart due to differences in their circulatory systems.

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Answer:  Stem cells produce their exact copies by the process of cloning. It is defined as the deliberate production of genetically identical individuals.

Explanation: Stem cells has the ability to continuously divide to generate exact copies of themselves by a process called self renewal. and has the ability to change into specialized cells in a process called differentiation.

Clones contain identical set of genetic material in the nucleus, compartment that contains the chromosomes of every cell in their bodies.The cells from two clones has same DNA and same genes in their nuclei.

All multicellular plants and animals rely on the stem cells to grow from a single cell into an adult. Stem cells allows our body to build new tissues such as new muscle when we exercise.

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Answer:

They move through an electron transport chain to Photosystem I.

Explanation:

gradpoint

Fungi that absorb nutrients from decaying plant matter are called saprobes. Option A is the correct answer.

Saprobes are fungi that absorb nutrients from decaying organic matter. They play a crucial role in nutrient cycling and decomposition processes in ecosystems.

Saprobes secrete enzymes that break down complex organic compounds in dead plant matter, converting them into simpler molecules that can be absorbed and used for growth and metabolism. This process helps to recycle nutrients and return them to the soil, making them available for use by other organisms.

Examples of saprobes include certain species of molds and fungi that grow on dead trees, leaves, and other plant debris. Understanding the role of saprobes in ecosystems can help us appreciate their ecological importance and value.

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To learn more about an organism's metabolism, a biologist would probably examine all of its chemical processes.

metabolism is the collection of chemical activities that occur in each living thing's cell and supply power for both essential functions and the creation of new organic material.

The chemical processes that support life require living entities to use energy and ingest nutrients. An organism's metabolism is the whole of its biological processes. Both anabolism and catabolism are subsets of metabolism.

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The chemical reactions that assemble peptidoglycan from the nag and nam sugars and amino acids would be characterized as biosynthetic or synthetic reactions.

Peptidoglycan is a large polymer that forms a mesh-like scaffold around the bacterial cytoplasmic membrane. Peptidoglycan synthesis is vital at several stages of the bacterial cell cycle: for expansion of the scaffold during cell elongation and for formation of a septum during cell division.

Peptidoglycan is a rigid envelope surrounding the cytoplasmic membrane of most bacterial species. It helps protect bacterial cells from environmental stress and helps preserve cell morphology throughout their life cycle.

Peptidoglycan biosynthesis is also an important regulator of bacterial cell division.

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The system that the digestive system is least connected to is the Integumentary which is option B.

In the body, food is broken down into simple, soluble and diffusible substances by mechanical and chemical means through the digestive system.

The alimentary tract of the digestive system is connected to the nervous system. This is because the autonomic nervous system supplies nerves to the alimentary tract and this leads to:

The circulatory system is connected to the digestive system through blood supply from the arteries and blood drainage through the veins.

The excretory system is connected to the digestive system. this true because  the food substances that have been eaten but cannot be digested and absorbed are excreted from the alimentary canal as faeces by by the process of defecation.

The Integumentary system in an external part of the body which is involves  protection of the body. it dosen't play any role in the digestive system and so its least connected to it.

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Answer:

6Molecules Needed

Explanation:

For each molecule of glucose produced: 6 water water molecules are oxidized, and become the source of electrons for carbon dioxide reduction. 6 molecules of carbon dioxide are required, one for each carbon atom in glucose. 6 molecules of oxygen are produced as a by product of water oxidation

Answer:

A,B,D,

Explanation:

C,E and F are wrong

Answer:

DNA has thymine as a nucleotide, while RNA has uracil.

Explanation:

The DNA nucleotides are adenine, guanine, cytosine, and thymine; the RNA nucleotides are adenine, guanine, cytosine, and uracil.

Answer:

Trace fossils may consist of impressions made on or in the substrate by an organism. For example, burrows, borings (bioerosion), urolites (erosion caused by evacuation of liquid wastes), footprints and feeding marks and root cavities may all be trace fossils.

Explanation:

Answer:

its the roots and leaves!

Explanation:

Answer:

It will be the roots

Explanation:

The roots are there to absorb the water from the soil when you water them. That's how they grow.

The correct answer is option A) Energy: glycogen and starch Structure: cellulose and chitin.

Carbohydrates are an essential class of biomolecules that play crucial roles in living organisms. They can be categorized into various types based on their chemical structure and functions. In the given table, four types of carbohydrates are listed: cellulose, chitin, glycogen, and starch. Let's explore the functions and structures of these carbohydrates and how they correspond to the correct answer.

Cellulose:

Cellulose is a major component of plant cell walls. Its primary function is structural support. It forms a strong and rigid framework, providing stability to plant cells and tissues. Cellulose is composed of long chains of glucose molecules linked together. Due to its complex structure, cellulose cannot be digested by most animals and humans.

Chitin:

Chitin is found in fungal cell walls and arthropod exoskeletons. It also serves a structural role. Chitin provides strength and protection to these organisms. It is a nitrogen-containing carbohydrate made up of repeating units of N-acetylglucosamine. Chitin is resistant to degradation and provides rigidity to the structures it forms.

Glycogen:

Glycogen is a storage form of glucose in animals. It is primarily stored in the liver and muscle cells. When blood glucose levels decrease, glycogen is broken down into glucose, which is released into the bloodstream to maintain stable blood sugar levels. Glycogen serves as an energy reservoir, allowing for quick mobilization of glucose when needed.

Starch:

Starch is the main energy storage carbohydrate in plants. It is stored in plant roots and seeds. Starch molecules consist of long chains of glucose units. Plants break down starch to provide energy for growth, development, and germination of seeds. Starch also serves as a source of energy when consumed by animals.

Based on the descriptions provided, the correct answer is A) Energy: glycogen and starch (as they are storage forms of glucose) and Structure: cellulose and chitin (as they provide structural support to cells and organisms).

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The complete question :

A table of four types of carbohydrates is shown.

Type of Carbohydrate                       Description

Cettulose                       Major component of plant cell walls

Chitin                             Major component of fungal cell walls and                         .                                      arthropod exoskeletons

Glycogen -                    Stored in liver and muscle cells, broken down to   .                                     .                                      glucose when blood glucose levels decrease

Starch-                         Stored in plant roots and seeds, provides food for  .           .                                    seeds to germinate or for animal consumption

Which list correctly matches the functions to the types of carbohydrates?A) Energy: glycogen and starch   Structure: cellulose and chitin

B)Energy: cellulose and chitin    Structure: glycogen and starch

c)Energy: chitin and glycogen   Structure: cellulose and starch

d)Energy: cellulose and starch   Structure: chitin and glycogen

The type of worm that has male and female reproductive organs in each segment and uses hooks to attach to the intestinal wall is a Tapeworm.

Segmented worms, also known as Annelids, are invertebrates characterized by their cylindrical body, segmented structure, and bristle-like appendages. They can be aquatic, terrestrial, or parasitic. The body of a segmented worm is divided into a series of identical, repeated segments or metameres. The segmentation of the body is a crucial feature that distinguishes annelids from other animals. Each segment includes a set of internal and external organs.What is a tapeworm?Tapeworms, also known as cestodes, are a type of parasitic flatworm that reside in the intestines of vertebrates. They are ribbon-like and consist of a long chain of segments known as proglottids, each containing male and female reproductive organs. In each proglottid, the female organs are located in the anterior portion, and the male organs are located in the posterior portion.

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Answer:

C6H12O6

Explanation:

This is glucoses formula

Answer:

B or D

Explanation:

think of it how you use chalk on a chalk board, its less friction using chalk instead lets say a marker on a white board.

Answer: mass is measured using balance

Explanation: mass is quantity of an object and a beam balance is used to measure it

Answer:

Mass is measured using a balance

The mass of an object remains constant

Kilograms are units of mass

Explanation:

Answer:

the answer is true.

Answer:

9. Bees play a very important role in relation to agricultural production. Indeed beekeeping is a vital part of our agricultural system. Apart from crop plants which are highly dependant on bees, the presence of honey bees also improves the quality and quantity of crops in general.

10. Use insect repellent. Permethrin-impregnated clothing and insect repellent have not been proved to be particularly effective against tsetse flies, but they will prevent other insect bites that can cause illness. The World Health Organization has targeted West African trypanosomiasis for elimination as a public health problem by 2020.

Explanation:

A thin, extracellular layer upon which an epithelium rests is called the basement membrane.

The basement membrane is a vital component of many tissues and organs, serving as a structural and functional interface between the epithelium and underlying connective tissue.

An epithelium is a type of tissue composed of tightly packed cells that form a continuous, protective layer on the surface of organs and tissues. The epithelium acts as a barrier, preventing the spread of harmful substances into the body and protecting the underlying tissues from damage.

The basement membrane is formed from extracellular matrix (ECM) components such as collagen, laminin, and glycoproteins, and it plays an important role in the maintenance of tissue integrity and homeostasis. It provides mechanical support to the overlying epithelium and regulates cell behavior by controlling cell adhesion, migration, and proliferation.

In addition, the basement membrane plays a crucial role in the proper functioning of many physiological processes, such as wound healing, angiogenesis (the growth of new blood vessels), and immune responses. In some tissues, such as the skin and the inner lining of blood vessels, the basement membrane serves as a filter, allowing the passage of certain molecules while preventing the passage of others.

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Answer:

with hair or fur

Explanation:

All mammals are endothermic. They conserve body heat through their hair and fur.

Those animals that can regulate their body temperature are known as endothermic or warm-blooded animals. They can survive even when the temperature fluctuates during seasonal changes. They can live in various climates.

When the body temperature of a mammal increases too high then this condition is called hyperthermia, and body temperature reduces too low, then it is called hypothermia.

Hypothalamus is a part of the brain that maintains the temperature of the body, it is responsible for heat production and heat loss. In mammals, heat generates during cellular metabolism. This process is called thermoregulation.

Hence, this is how mammals conserve their body heat.

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Answer:

B hopefully it’s right

Explanation:

Answer:

a

Explanation:

Answer:

Gross productivity refers to the amount of carbon fixed.

Explanation:

Gross productivity refers to the amount of carbon fixed during the process of  photosynthesis by all producers such as plants and algae etc in the ecosystem. A large part of the energy that is produced in the process of photosynthesis is used by the plants in the metabolic processes of the producers such as respiration. The net productivity indicates that carbon dioxide plants that is used during the photosynthesis process substracted from carbon dioxide the plants releases during the process of respiration.

Answer:

be care if use answer ^ got in troulbe reword it really good

Explanation:

A resting neuron has the following characteristics: Its inside is negative relative to its outside. A charge separation exists at the membrane. The cytoplasm contains more potassium and less sodium than does the extracellular fluid. The electrochemical gradient for the movement of potassium across the membrane is greater than that for sodium. Therefore, options A, E, D, and G are correct. The resting potential is a characteristic of all living cells, including neurons.

When a cell is in a resting state, the charge across the cell membrane is negative. The cytoplasm has more negative charges than the extracellular fluid, which makes the inside of the cell negatively charged relative to the outside. This difference in charge is referred to as the membrane potential or resting potential, which is typically between -40 and -90 millivolts.

The resting potential is established by the unequal distribution of ions across the cell membrane. The cytoplasm contains more potassium and less sodium than does the extracellular fluid. Since potassium ions are positively charged and sodium ions are negatively charged, the difference in concentration of these ions contributes to the negative charge of the cell membrane. Additionally, the selective permeability of the cell membrane to ions contributes to the resting potential.

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Answer:

this is answer the phone when I get

The M phase of the cell cycle is referred to as the shortest phase. The stages of a cell's life that make up the cell cycle.

The cell cycle consists of four major stages: gap 1 (G1), synthesis (S), gap 2 (G2), and mitosis (M). Occasionally, cells will also enter a stationary phase known as G0 after exiting the cell division cycle.

Mitosis is the cell cycle's shortest stage. Cells grow and perform their functions within the body for the majority of their lives during the G1 phase. The process of cell division known as mitosis takes the shortest amount of time for cells to go through. In multicellular organisms, mitosis is required for growth and repair, and in unicellular organisms, it is required for asexual reproduction.

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