The exchange of gases usually takes place through its moist skin and capillaries called as respiratory system of earthworm
The digestive system start at the head and goes all the way down to the end of the tail and the decaying food goes in the pharynx which help to suck soil in mouth and the earthworm has a closed circulatory system and earthworm circulates blood exclusively through vessels
The squids digestive system is in form that loops and food enter the mouth and where the black chitinous beaktear the prey into the pieces and the food is then moved through the esophagus and blood then flow to the systematic heart whereas it is pimped to the rest of the body
The crayfish circulatory system is open system where blood is contained in vessel for only part of the system and the gut of the crayfish is divided into five parts
The perch digestive system start at the mouth like human and earthworm
The rat digestive system consist of an alimentary canal and the digestive gland
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What is the main purpose of RNA? O To relay instructions for making proteins from the nucleus to the vacuole O To relay instructions for making proteins from DNA to the ribosome To relay instructions for making proteins from the cell membrane to the ribosome O To relay instructions for making proteins from the ribosome to DNA
Answer: The primary function of RNA is to create proteins via translation. RNA carries genetic information that is translated by ribosomes into various proteins necessary for cellular processes. mRNA, rRNA, and tRNA are the three main types of RNA involved in protein synthesis.
Explanation: I study microbiology
List the steps of the Krebs cycle and the products it creates.
Answer:
Step 1: Condensation of acetyl CoA with oxaloacetate.
Step 2: Isomerization of citrate into isocitrate.
Step 3: Oxidative decarboxylations of isocitrate.
Step 4: Oxidative decarboxylation of α-ketoglutarate.
The Krebs cycle results in the production of one FADH2, two NADH, two carbon dioxide molecules, and one ATP/GTP.
Explanation:
What experiences had Wallace had as a naturalist before traveling to the Malay Archipelago?
Wallace came to the conclusion that new species emerge near closely related species based on his observations of species inside the Malay Archipelago and the Amazon.
what are the some examples of species?The ecological species concept, which defines a species as an organism group framed by the resources they depend on (otherwise known as their ecological niche), as well as the genetic species concept, which assumes that all organisms are capable of inheriting traits from each other within a common gene pool, are two examples.
Which definition of "species" is the most accurate?A group of living things that can naturally breed with each other and generate children that are fertile is commonly referred to as a species. It can be challenging—even contentious—to classify a species, though.
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What element is changed by lightening into a form that plants can use?
Answer:
nitrogen fixation
Explanation:
Nitrogen in the atmosphere can be transformed into a plant-usable form, a process called nitrogen fixation, by lightning. Each bolt of lightning carries electrical energy that is powerful enough to break the strong bonds of the nitrogen molecule in the atmosphere.
i need help with 4d & 4e please! it’s due tmr
Denaturation of protein is the phenomenon where all the structures of proteins are disrupted except the primary structure. This happens because the primary structure is made up of covalent bonds that cannot be broken down easily. But the secondary or tertiary structures are made of non-covalent structures that are relatively easier to disrupt.
Enzymes are the proteinaceous agents that alter the rate of reactions. The enzyme activity is active when the protein exhibits the tertiary or quaternary structure. This is the reason why when protein denatures the enzyme activity also changes.
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What characteristics of the lungs of infants and small children creates increased risk of respiratory disorders
Answer:
The internal diameter of the airways in a child is smaller. Any inflammation or obstruction may cause more severe distress. In general, pediatric airways are smaller, less rigid, and more prone to obstruction. Children also have higher respiratory rates than adults making them more susceptible to agents in the air.
Explanation:
african savanna elephant chance of survival
How many times can a simiulation be repeated
Answer: 200 TIMES CAN SIMULATION BE REPEATED.
Electromagnetic radiation travels
A. in an unpredictable way
B. as a straight line
C. as a square
D. as a wave this is answer
Electromagnetic radiation travels as a wave
Electromagnetic radiation is a form of energy that propagates as both electrical and magnetic waves travelling in packets of energy called photon and there is a spectrum of electromagnetic radiation with variable wavelength and frequency and which in turn impart different characteristics and electromagnetic radiation is a type of energy that commonly known as light and generally light travels in waves and all electromagnetic radiation travel at the same speed and which is about 3.0×10⁸m/s through a vacuum and electromagnetic waves are produced by motion of electrically charged particles
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1. Which of the following statements concerning scientific hypotheses is fake? They are constructed based on observations. O They are the same as theories. O They are not always correct. O They must be testable experimentally.
Answer: They are the same as theories.
Explanation: scientific hypothesis is like a theory as it is a possible explanation of an observation.
What most likely caused a substance to be solid
17. According to Sigmund Freud, memories that easily surface into
everyday thought are in which part of the mind?
Hint: In the iceberg analogy, this is the part of the iceberg that's just
below the surface of the water.
Sigmund Freud, memories easily surface into everyday thoughts that are considered conscious parts of the mind.
How conscious mind work?The conscious mind holds all of our ideas, memories, feelings, and desires at any one time.
This includes our memories, which although sometimes unconscious, are easily retrievable and brought back to consciousness.
Therefore according to Sigmund Freud, memories that easily enter into everyday awareness are a conscious aspect of the mind.
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How are global winds and global ocean currents related
Question 4
When a neuron is not processing information:
O It is negatively charged
O It has no charge
O It is positively charged
O It is sometimes positively charged, sometimes negatively charged
When a neuron is not processing information It is negatively charged.
The correct option is A.
What is the role of neurons?Signals are sent and received by neurons, often referred to as nerve cells, from your brain. Although they share many characteristics with other cell types, neurons are physically and functionally distinct. Neurons are able to communicate electrical and chemical messages to other cells via specialised extensions known as axons.
Where are neurons found?The bulk of neurons in vertebrates are found in the central nervous system, however some are found in peripheral ganglia and many neurones are found in sensory organs like the retina and ear.
What is a neuron made of?Three basic components make up a neuron: a cell body, two extensions known as an axon, as well as a dendrite (3). The nucleus (2), which regulates the functions of the cell and houses its genetic material, is located inside the cell body. The axon resembles a tail and carries signals out of the cell.
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The complete question is -
When a neuron is not processing information:
A- It is negatively charged
B- It has no charge
C- It is positively charged
D- It is sometimes positively charged, sometimes negatively charged
In humans, which chromosome pair is the largest?
- 22
- 23
- 1
- 10
Answer:
23
because humans have 46 chromosome or 23 pairs
Classified each process as weathering, erosion or deposition.
Answer:
lol I don't understand sry
If mitosis but not cytokinesis occurred in onion root tip cells, what would you expect to see on a slide of these root cells?
Answer: Well, cytokines happens after mitosis so you wouldn't see the daughter cells dividing yet.
Explanation: Onion root-tip cells divide once every 24 hours, or roughly two hours after sunrise, and go through a cell cycle that lasts for about 24 hours. Therefore, in order to harvest the greatest amount of proliferating cells, water-grown roots should only be removed at that time.
Which of the following groups
of animals could be found in
temperate grasslands?
A. deer, fruit-eating birds, lizards, and snakes
B. bison, longhorns, burrowing animals, birds this
that nest on the ground, and foxes
C. migratory animals, oxen, caribou, and artic
foxes
D. lions, rhinoceros, giraffes, and elephants
Look at this map of current volcano hazards. Click a few volcanoes to determine their warning levels. Why is it possible to have a warning system for volcanoes? If you were a volcanologist, would you watch certain volcanoes on the map more than others?
It is possible to have a warning system for volcanoes because most volcanoes issue warnings before erupting.
As a volcanologist, certain volcanoes on the map will be monitored more than others because some volcanoes are more explosive than the others.
Why do volcanologist monitor volcanoes?Monitoring volcanoes enables volcanologist to understand its activities during an unrest through seismicity, deformation and degassing. Some volcanoes are explosive while others are not so the volcanologist has to monitor the type of magma that flows from it.
The volcanologist also uses the map as an indicator to know when any volcano is scheduled to erupt because some volcanoes provide warnings before eruption.
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Answer:
By examining the pace of change in the gases released, the rate of change in seismic activity, the rate of change in ground deformation, and other variables, a volcanic eruption can be predicted. These are early warning indicators of an eruption. Volcanologists should concentrate on Kilauea and Shishaldin when studying the map because these two volcanoes are at the watch alert level and are more likely to erupt.
If pH affects enzyme activity, then...
pH: Each enzyme has an optimum pH range. Changing the pH outside of this range will slow enzyme activity. Extreme pH values can cause enzymes to denature. Enzyme concentration: Increasing enzyme concentration will speed up the reaction, as long as there is substrate available to bind to.
Answer:
7>ph<14
Explanation:
if ph is 7 then its neutral, if ph lower than 7 and higher than 0 its acidic, if it's higher than 7 and lower than 14 its basic.
How do the body levels of organization demonstrate this biblical concept?
Answer:
Explanation:
Study of human structure and function from a biblical worldview is centered on God’s intricate design. We are fearfully and wonderfully made by the sovereign Designer/Creator, and this truth is evident from the molecular to the systemic levels of organization.
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how do you calulate a systems total energy
Read the problem and identify all variables given within the problem as well as all forms of energy using the equation for total mechanical energy, insert calculated values of kinetic energy and potential energy.
Plants (such as the trees
shown in this image) that
continue to grow year after
year without dying fall into
which of these categories
of angiosperms?
A. millennials
B. annuals
C. perennials this is answer
Answer:
perennials
Explanation:
Plants that persist for many growing seasons. Generally, the top portion of the plant dies back each winter and regrows the following spring from the same root system (e.g. Purple Coneflower). Many perennial plants do keep their leaves year-round and offer attractive borders and groundcover (e.g. Tickseed, Shasta, and Ox-Eyed Daisy).
Answer: C. perennials this is answer
How is the body able to prevent future infections by the same virus?
Nondisjunction during meiosis can result in all of the following EXCEPT
Group of answer choices
cells abnormal numbers of sex chromosomes
cells with the normal number of chromosomes
cells with additional chromosomes
cells with missing chromosomes
Answer:
cells with normal number of chromosomes
PLEASE HELP WILL GIVE BRAINLIEST
Answer:
122+293
773
because you are you still
Answer:
Notothenioidei is one of 19 suborders of the order Perciformes. The group is found mainly in Antarctic and Subantarctic waters, with some species ranging north to southern Australia and southern South America.[2][3] Notothenioids constitute approximately 90% of the fish biomass in the continental shelf waters surrounding Antarctica.[4]
773 is answer
Which term describes the chromosomal abnormality of having three copies of a single chromosome?
A.haploidy
B.diploidy
C.trisomy
D.tetrasomy
4
What is the
sugar source?
A. where the sugars are needed
B. what is used to transport the sugars
C. where the sugar is made this
Which length of waves are MOST harmful
to humans?
A. visible light
B. short waves like gamma rays and x-rays this answer
C. long waves like radio waves
D. Infrared light
Would the lac operon work if the repressor protein could not bind to lactose?
Answer: no
Explanation:
because binding of lactase to the repressor protein always the RNA polymerase to bind to promoter thus the structural genes could the production of enzyme lactase however if lactase doesnt bind the active repressor protein binds to the operator hindering the rna polymerase from binding on the promoter so there will be no genes for lactase production transcribed