Answer:
u mean starfish
Explanation:
they have like little tenticles on their front side of their fins? ig and they stick to the ground and move.
Answer:
By moving water from the vascular system into the tiny feet, the sea star can make a foot move by expanding it. This is how sea stars move around. Muscles within the feet are used to retract them. Each ray of a sea star has a light sensitive organ called an eyespot.
Explanation:
Hi! How are you?
Which of the 3 muscle types is the weakest?
Vascular Smooth Muscle Contraction - FitnessGenes®
Group of answer choices
Cardiac
Skeletal
Smooth
Answer:
i believe the smooth i could be wrong tho:)
Explanation:
Answer:
Smooth muscle
Explanation:
trust me :)
4. How is salinity affected when evaporation increases?
Answer:Evaporation of ocean water and the formation of sea ice both increase the salinity of the ocean. However these "salinity raising" factors are continually counterbalanced by processes that decrease salinity such as the continuous input of freshwater from rivers, precipitation of rain and snow, and melting of ice.
Explanation:
2. What nucleic acids are involved in the process of transcription?
Answer:RNA
Explanation:The main enzyme involved in transcription is RNA polymerase, which uses a single-stranded DNA template to synthesize a complementary strand of RNA.
please help i’ll give brainliest
Answer:
the largest amount of organisms are the producers, so yeah choose producers
Alfred wegnar proposed what hypothesis
Answer:
Continental Drift Hypothesis
Explanation:
WHAT IS THE POWERHOUSE OF THE CELL?
this is for a friend who answered correctly previously. please just don't put anything funny and let them answer it pleaseeeee.
Explanation:
mitochondria are often referred to as the powerhouse of the cell
What gets filtered out of the blood in the nephrons due to high pressure? Select all that apply.
water
salts
fats
sugar
vitamins
protein
amino acids
ions
Answer:
Water, ions, glucose, fluids
Explanation:
This is because the nephron have network of cappilaries vessel called glomerulus . This glomerulus filter blood in the kidney to make urine. The hydrostatic force cause the filtrate to be filtered out through pressure.
The nephron also posses tubule which help to return needed or essential substances like protein, ions to the blood and then remove waste products from the blood.
what is the different between mechanical digestion and chemical digestion in the mouth?
Answer and Explanation:
The mouth is part of the digestion system.
Mechanical Digestion is the physical motion our mouth makes to chew up the food. We grind up the food with our teeth, then swallow the food into the next part of the digestive system.
Chemical Digestion in the mouth is the saliva our mouth produces. It breaks down the food along side the mechanical part of the mechanical digestion.
#teamtres #PAW (Plant And Water)
Which three terms best describe the level of organization of life shown in this photo? A. Ecosystem I B. Biosphere C. Biotic factors D. Abiotic factors
Answer:
A???
Explanation:
I think it would be A. Ecosystem, bet don't quote me on that
Answer:
Explanation:
A, B, D
A mutation was found in which the DNA sequence changed from 5' CCCGGGAGA 3' to
5' CCCAGA 3' What kind of mutation is this?
O Deletion
O Frame-shift
Insertion
Substitution
Answer:
Deletion beacuse it is missing the GGG
what is the probability for a child to inherit one of two alleles from her dad??
a:100%
b: 50%
c: 0%
d: impossible to know
Answer:
100%
Explanation:
a child will get one allele from her mom and one from her dad.
Answer:
50%
Explanation:
the probability for a child to inherit one of two alleles from her dad is 50 persent.
If a star is large, it will undergo hydrogen fusion
a small star.
for as long as
for longer than
for less time than
Answer:
Longer, hope you pass
Explanation:
HELP! NO LINKS OR IRRELEVANT TOPICS! PLEASE DON'T WASTE MY POINTS!
What places in the world have animals in cages or in limited spaces? Name many please!
Answer:
South China and the U.K.
PLS HELP
Explain the flaw in Bill's rationale in the following scenario:
Bill, a horse breeder, believes that studying heritability is a waste of time. He thinks that kind of technical study should be left to scientists, not farmers.
He could use this knowledge to help breed his horses to the best that they can be.
What is heritability ?The degree to which genetic variations among persons may adequately explain the variations in their attributes is known as heritability. Characteristics like height, eye color, and IQ are examples of traits, as are illnesses like schizophrenia and autism spectrum disorder.
Heritability, which is denoted by the statistic h2 in science, describes the proportion of a trait's variation that can be attributable to genetic variation.
An estimation of a trait's heritability is particular to one population in a particular setting, and it might alter over time as conditions change.
Estimates of heritability range from 0 to 1. A heritability close to zero means that environmental factors, with very little influence from genetics, account for almost all of the variation in a trait among individuals.
Therefore, He could use this knowledge to help breed his horses to the best that they can be.
To learn more about heritability, refer to the link:
https://brainly.com/question/21422122
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Do catfish have hair?
a. yes
b. no
Answer:
no they do not have hair, even tough it may look like they have hair its only pieces of skin.
Explanation:
Catfish do not have hair. They have barbels, which are long, thin feelers that are used to sense their surroundings. Hence option B is correct.
The barbels are covered in taste buds, which allow the catfish to taste the water and find food. Hair is made of keratin, which is a protein. Catfish do not have keratin in their skin, so they cannot grow hair.
However, some catfish species have barbels that are covered in small, hair-like projections. These projections are not actually hair, but they are similar in appearance.
Therefore, option B) No is correct.
To know more about Catfish:
https://brainly.com/question/14774645
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what is the function of capillaries?
Answer:
To exchange materials between the blood and tissue cells.
Explanation:
Hope this helped!!!
Which plankton is most efficient in converting solar energy to energy in chemical bonds?
Please help!
Which is the correct definition of the Circulatory system?
A. Breaks down food into smaller pieces and absorbs those nutrients into the body.
B. The system fights disease so the body stays healthy.
C. Releases wastes from the body and helps in maintaining homeostasis
D. The system that circulates blood and oxygen through the body, consisting of the heart, blood vessels and blood.
Answer: d
Explanation:
Answer:
d.it regulate the blood and oxygen through
Is it more likely that the T. Rex would have a 3-chambered heart or a 4-chambered heart and why?
Question 14 options:
A 3-chambered heart because the caiman also has a 3-chambered heart and the T. Rex is most closely related to the caiman.
A 3-chambered heart because the parrot has a 3-chambered heart and the parrot is most closely related to the T. Rex.
A 4-chambered heart because the caiman also has a 4-chambered heart and the T. Rex is most closely related to the caiman.
A 4-chambered heart because the parrot has a 4-chambered heart and the parrot is most closely related to the T. Rex.
boi what class are you in
Human ovaries play an important role in reproduction. Which part of a
plant contains structures similar to human ovaries? (A)flower (B)leaf (C)stem (D)root
Answer:
c stem
Explanation:
There a four shared features of Chordates. Match the feature with the appropriate characteristic or function. Group of answer choices found between the digestive tract and nerve cord [ Choose ] in some embryos this develops into the central nervous system [ Choose ] in invertebrate chordates can be involved in filter food from water ingest through the mouth [ Choose ] in jawed fish this provides support for the jaw [ Choose ] provides skeletal support [ Choose ] is derived from the ectoderm
Answer:
1. Notochord.
2. Dorsal hollow nerve cord.
3. Pharyngeal slits.
4. Pharyngeal slits.
5. Notochord.
6. Dorsal hollow nerve cord.
Explanation:
A living system can be defined as the internal systems found within living organisms and how different materials circulate within these organisms.
Generally, these living systems are self-organized life forms and are known to be very much interactive with their surroundings or environment. Also, living systems are dependent on the flow of information, matter and energy at various levels.
Some examples of living systems in organisms are respiratory system, nervous system, circulatory system, and digestive system.
A chordate can be defined as an animal found in phylum chordata of the animal kingdom such as vertebrates, cephalochordates, tunicates, etc.
The four (4) shared anatomical features or characteristics of chordates includes the following;
1. Notochord: found between the digestive tract and nerve cord.
2. Dorsal hollow nerve cord: in some embryos this develops into the central nervous system.
3. Pharyngeal slits: in invertebrate chordates can be involved in filtering food from water ingest through the mouth.
4. Pharyngeal slits: in jawed fish this provides support for the jaw.
5. Notochord: provides skeletal support.
6. Dorsal hollow nerve cord: is derived from the ectoderm.
Read the paragraph then answer the question:
(1) The coral reef is a beautiful underwater landscape. (2) Coral is a actually a type of animal made of polyps that filter feed off small plants and microscopic animals that float through the current. (3) Many other animals live here as well including turtles, sharks, and 1,000s of types of fish. (4) The coral can be hurt by too much carbon dioxide being dissolved in the water from the air above. (5) If the coral dies, the reef becomes bare rock and sand no longer full of life.
Which sentence above BEST shows how the atmosphere is a part of the coral reef?
(2) Coral is a actually a type of animal made of polyps that filter feed off small plants and microscopic animals that float through the current.
(3) Many other animals live here as well including turtles, sharks, and 1,000s of types of fish.
(4) The coral can be hurt by too much carbon dioxide being dissolved in the water from the air above.
(5) If the coral dies, the reef becomes bare rock and sand no longer full of life.
Answer:
(5) If the coral dies, the reef becomes bare rock and sand no longer full of life.
Explanation:
The atmosphere is a part of coral reef because a large population of organisms lives in these coral reefs. It provides habitat to the biosphere of the ocean as well as oxygen to the marine organisms. It can greatly affected with the increase concentration of carbondioxide due to acidification of water that kills the algae that is lives on the surface of these coral reef. So if these algae die due to lowering of pH, a large portion of marine organisms also removed from the environment due to unavailability of suitable environmental conditions.
One adaptation to life in flowing water is _____.
A] for anchorage
B] breeding in oceans
C] needing little oxygen
Answer:
A
Explanation:
Plants that live in rivers or any body of flowing water have strong roots to anchor them to the shore.
step by step process of photosynthesis
Answer:
Step 1-Light Dependent. CO2 and H2O enter the leaf.
Step 2- Light Dependent. Light hits the pigment in the membrane of a thylakoid, splitting the H2O into O2.
Step 3- Light Dependent. The electrons move down to enzymes.
Step 4-Light Dependent. Sunlight hits the second pigment molecule allowing the enzymes to convert ADP to ATP and NADP+ gets converted to NADPH
Step 5-Light independent. The ATP and NADPH is used by the calvin cycle as a power source for converting carbon dioxide from the atmosphere into simple sugar glucose.
calvin cycle.
Which is an ABIOTIC factor in biomes? *
A. average temperature
B. kinds of trees
C. moss and algae
D. number of insect species
Answer:
D. number of insect species
Explanation:
I got it correct
name two disaccharides which are reducing sugar
Answer:
lactose and maltose
Explanation:
only sucrose is a non reducing sugar
Answer:
Two reducing disaccharides sugar : Lactose and maltose.
1. Which systems (2) are primarily responsible for movement of the body
Answer:
The correct answer is -muscular system and skeletal system.
Explanation:
The skeletal system and the muscular system work together to move the body or body parts. Different types of tissues form the muscular system that and their action on bones controls the movement of the body in vertebrates.
Tendons are tough muscles that attach with the bones and joints allow the movement by contraction of muscle that helps in moving bones from joint. Muscle normally acts by contracting and relaxing in pairs.
Explain the Carbon cycle in 3 paragraphs or more.
Answer:
Carbon cycle is the process where carbon compounds are interchanged among the biosphere, geosphere, pedosphere, hydrosphere, and atmosphere of the earth.
1) Carbon present in the atmosphere is absorbed by plants for photosynthesis.
2) These plants are then consumed by animals and carbon gets bioaccumulated into their bodies.
3) These animals and plants eventually die, and upon decomposing, carbon is released back into the atmosphere.
4) Some of the carbon that is not released back into the atmosphere eventually become fossil fuels.
5)These fossil fuels are then used for man-made activities, which pumps more carbon back into the atmosphere.
Carbon in the atmosphere is present in the form of carbon dioxide. Carbon enters the atmosphere through natural processes such as respiration and industrial applications such as burning fossil fuels.
Can you please help me
Answer:
a survey found 65 percent...
Explanation:
I'm pretty sure
Please helppppppp!!!!