It has the biggest particles and feels rough when you rub it. It is usually found near rivers
seas.
(1 Point)
O Clay
O Loam
Silt
O
Sand
What questions do you have about our origins? What clues in nature can we look for to investigate this mystery?
Answer: Humans first evolved in Africa, and much of human evolution occurred on that continent. The fossils of early humans who lived between 6 and 2 million years ago come entirely from Africa. Most scientists currently recognize some 15 to 20 different species of early humans.
Explanation:
Help me plsss no links!!!
Signals from _______ and the body's _______ are received by the brain and the spinal cord.
Once signals are processed and _______ by the central nervous system, a response is sent back to the body.
A central nervous system is also responsible for programming _______ and _______.
The central nervous system includes the brain and spinal cord.Signals from senses and the body's organs are received by the brain and the spinal cord.Once signals are processed and interpreted by the central nervous system, a response is sent back to the body.A central nervous system is also responsible for programming reflexes and instincts.
(I think that's good)
Hi again!!! I finished my science course a bit early so allow me to help! I noticed you were trying to fill in your notes for 6.01 nervous system video so here is what I had put down!
Your internal organs and your senses send signals to your brain and spinal cord.
Once signals are processed and interpreted by the central nervous system, a response is sent back to the body
The central nervous system is also responsible for programming instincts and reflexes like twitching when you're tickled or blushing when you get a flattering text.
Hope this helps! Brainly is not needed but appreciated!
WILL GIVE BRAINLIEST! 50 POINTS
What causes air masses to move?
When prevailing westerlies shift directions and move toward the west.
Weather conditions change rapidly to produce storms.
A collision takes place between two natural wind patterns.
Long, narrow bands of wind blow in the upper atmosphere.
Answer:-The cause of the air masses to move is: The current of air and wind causes the air masses to move. The change in the air masses is the reason for the change in the weather.
Explanation:
Air masses are moved by differences in air pressure, which is caused by uneven heating of the earth's surface by the sun. This creates areas of high and low pressure, and air masses will move from areas of high pressure to areas of low pressure.
What is air mass ?An air mass is a large body of air in the atmosphere that has similar temperature and humidity characteristics throughout its horizontal extent.
Air masses are classified based on their source region, which can be over land or water and in different latitudes. As air masses move from their source regions, they can bring changes in weather conditions to the areas they move over.
The movement of air masses can also be influenced by the rotation of the earth, which causes the Coriolis effect. This effect causes air masses in the Northern Hemisphere to be deflected to the right, and air masses in the Southern Hemisphere to be deflected to the left.
The collision of two air masses with different properties, such as temperature and humidity, can also cause movement and create weather conditions.
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whats the overall population of a bearded dragon? (over the whole world not a specific area)
Answer:
The official conservation status of the bearded dragon is Least Concern. The population of these reptiles remains steady in Australia. Plus, there are over 900 bearded dragons living in zoos throughout the world.
Explanation:
Answer:over 900 in zoos
Explanation:
complete each word on the second screenshot (just fill in the blank basically)
Answer:
.
Explanation:
In each stage, how do nephrons filter waste from blood? Stage 1: Stage 2:
Answer:
stage 1;- the glomeruls filters your blood
stage 2 ;- the tubule returns needed substances to your blood & removes wastes.
Explanation:
After the desired piece of DNA is added to the plasmid, the plasmid is placed into a(n) _____________ for incubation.
Answer:
plasmid vector
Explanation:
Which of these organisms is not a chordate? earthworm snake sea squirt human
Answer:
Humans
Explanation:
Humans are not chordates because humans do not have a tail. Vertebrates do not have a notochord at any point in their development; instead, they have a vertebral column.
The organism that is not a chordate is the earthworm.
What are chordates?Chordates are a group of animals that possess four distinctive anatomical features at some point during their life cycle: a notochord, dorsal nerve cord, pharyngeal slits, and a post-tail. These features set chordates apart from other animal groups and have been critical in their evolutionary success.
Chordates include a wide variety of animals, ranging from fish, amphibians, and reptiles to birds and mammals, including humans. Chordates are found in aquatic environments such as oceans, rivers, and lakes, as well as on land, and play a critical role in many ecosystems as both predator and prey.
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Which of the following may be caused by molds?
Allergy
Pneumonia
Cystic fibrosis
Huntington's disease
Answer:
Pneumonia
Explanation:
This comes from the cells in pheumonia that make every thing around it turn to a mold like substance
Explain to the Econauts how their plans for the next biodome should be different.
Answer:
hope this helps :)
Explanation:
A biodome is a self-sustaining habitat for plants. Students will make a biodome in a recycled soda bottle and watch as their seeds grow. Students will observe and understand how the water in the biodome continues to recycle itself through condensation and evaporation.
Which foods would be classified as fats? (Select all that apply.) no links
-vegetables
-fruit
-dairy
-fish
-water
-nuts
Answer:
fish nuts
Explanation:
I don't have an explanation but it's true
Andy and Mario were playing baseball in the summertime. Andy was wearing a black shirt
and complained about it being
excessively hot. What characteristic of how light transfers would cause this problem?
A. reflection
B. refraction
C. absorption
D. diffusion
c.
he's hot because the color of his shirt absorbs a lot of light and warms him.
Can Someone help me with this :)
Answer:
cool,nice
Explanation:
cool nice awesome math greatness
Answer:
what’s the question?
Explanation:
The codes found in DNA, for an organism's traits, are copid by the cells m-RNA by producing special units called codons.
These codons are represented by...
A. Four random nitrogenous bases
B. An anti-codon called t-RNA
C. Base pairs A-T and C-G
D. Three nitrogenous bases in a sequence
Answer:
During this process, the DNA sequence of a gene is copied into RNA. Before transcription can take place, the DNA double helix must unwind near the gene that is getting transcribed. The region of opened-up DNA is called a transcription bubble.
Explanation:
9. Please use the image of embryo development below to answer the following questions. All of the animals below are vertebrates.
Which of the following shows the correct order of development for mammal embryos from left to right? (Left is early. Right is just before birth.) *
A. A
B. B
C. C
D. D
E. E
F. F
what Willa hypothesis become if it is supported by repeated experiments A a prediction B a scientific theory c a conclusion d a control
Answer:
It is B
Explanation:
B. Scientific theory
A scientific theory is an explanation supported by scientific evidence. How ever many times you test it, you will get the same result.
Answer:
a
Explanation:
you need to predict what will happen each time you do an experiment
What is an example of plant organism structure and functions that help plants survive in their ecosystem? [Question for fun :)]
A: Plant seeds are part of their reproduction process and help make sure the species survives.
B: Plants, as producers, make food with the help of their leaves and sunlight.
C: Plants lack structures that serve a function because plants are stationary.
D: Plants have specialized parts like thorns that help protect them from being eaten.
Answer:
A, B, and D can really all help.
Explanation:
Reproduction procceses help chances of the species growing into larger numbers. Plants being able to make their own food allows them a greater chance of surviving in harsher conditions, without the struggle of literally finding food. PLants with thorns, like roses, help prevents animals from attempting to bite it.
Section 1: Overview of Lab
What is the purpose of the lab?
Answer:
the purpose of lab are:
1. it is used as storing different chemical and its tool.
2. it is used as experiment place.
1.If the DNA is not copied correctly, what effect will it have on the protein that is made?
2. If the protein is not the correct structure, what effect will that have on the trait?
3. Why is it important for the structure of genes/DNA to remain normal and unchanged? What happens if a mutation happens? (Please include the following terms in your answer: gene, mutation, protein, trait).
The needle of the compass is pointing toward the magnetic north pole of Earth. What would cause the needle of the compass to point toward the east? Explain why.
Compasses always point north. The magnetic pin in the compass aligns with the top of the planet's magnetic field and points in that direction. A broken compass points east.
Why does a broken compass points east?A strong magnetic field nearby may be the reason a compass points East. A compass may point in that direction if anything has a stronger magnetic attraction than the planet's magnetic field. Power lines, huge batteries, and magnetic metals like iron can cause interference. Their electromagnetic fields decrease quickly with distance.
A compass may point east if the needle's free movement is hindered. Compass needles are free-floating. It can't face North if it's damaged, bent, or blocked by debris. This may explain why the compass needle won't turn.
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Explain why a clownfish can touch an anemone when other organisms cannot.
Which of the following statements correctly explains how this process works?
Construct a brief argument to refute Cal’s claim in the following scenario.
Cal is a high-school biology student learning about bodily systems. When studying, Cal focuses on the nervous system because he feels it is the most important system in the body.
Answer: The cardiovascular System
Explanation:
The cardiovascular system homes the heart. The heart is a pump that circulates oxygen and blood throught your body essentially keeping you alive. Without the heart your brain would be dead because your brain would not be getting enough oxygen to funtion. So, although the brain and spinal cord are very important the heart is also if not more for it is the only way you live. You can be brain dead and still alive but not heart stopped and alive.
I hope this helps!
Answer: The Cardiovascular System
Explanation: The other person explained well lol
The author of the passage would most likely agree that
A
most scientists don't believe that plants release oxygen.
B
the hypothesis that plants need light has been disproven by evidence.
C
Bromthymol blue does not reliably indicate the presence of carbon
dioxide.
D
scientific investigations can show how the process of photosynthesis occurs.
Monarch butterflies have very long tubular tongues. What is the most likely function of this adaptation?
Question 31 options:
to defend the butterfly from predators
to obtain liquid food from flowers
to sense changes in the environment
to dig holes in the soil for shelter
Babies cry when they are hungry or thirsty. When they cry their parents usually respond, go to and pick up the baby, and give him or her food or milk. Over time, the baby learns that a parent will come when he or she cries. This is a type of learned response called
Question 30 options:
conditioning
imprinting
mimicry
survival
(k12)
Answer:
Question 31 - to obtain liquid food from flowers
Question 30- survival
Explanation:
Butterflies need longer tongues to get into longer flowers and obtain the nectar and liquid food from inside.
Survival is the answer because babies need food and water to survive and they learned a way to get the things that they need.
how are you doing?
if you want you can vent in the comments or the answers.
Answer:
good I've been staying home and doing my school work
Answer:
I'm good. thank you for asking : )
Explanation:
Study the image below, which shows the limb bones of various mammals. What might some scientists infer from this diagram? *
A. These mammals have similar bones in similar patterns. For this reason, they might share a common ancestor.
B. These mammals have very different limb shapes with different sizes of bones. For this reason, they probably do not share a common ancestor.
C. These mammals have similar bones in similar patterns. For this reason, they might have evolved from one another in a linear fashion.
D. These mammals live in many different environments and have different limbs to match. For this reason, they probably do not share a common ancestor.
Answer:
C. These mammals have similar bones in similar patterns. For this reason, they might have evolved from one another in a linear fashion.
Explanation:
1. What do scientist think caused the Autumn Buttercups to disappear in that certain area?
Answer:
they took the cows out of the pasture thinking that the autumn buttercups would grow better then with the cows in the pasture.
Explanation:
4. Why are fossils of the animal Archaeopteryx used as evidence that birds and dinosaurs may be related? *
In each answer, "they" is referring to the Archaeopteryx fossils.
A. They were older than dinosaurs, but not as old as birds.
B. They have some characteristics of both birds and dinosaurs.
C. They were not able to survive as well as birds, but better than dinosaurs.
D. They were found near both bird and dinosaur fossils in rock layers.