Answer and Explanation:
Engine irrigation pumps are used to propel water into the irrigation channels, providing full water supply to agricultural crops. The use of the engine pump has advantages and disadvantages. Among the advantages, we can present the simplicity of operation of these pumps, being easily operated efficiently. They also save energy and are essential for irrigation with more viscous liquids, when necessary. This feature is the main reason for using this type of pump.
Among the disadvantages we can say that these pumps have a slower and less accurate work.
A person riding a bicycle wants to move the bicycle forward. She moves her legs up and down on the bicycle's pedals. Then the rider wants to stop the bicycle. She stops pedaling and the bicycle slows. She takes one of her feet off a pedal and puts her foot on the ground to stop the bicycle and stay upright.
Which of these best identifies a pathway of systems in the rider's body, as described in this scenario?
*Hint- the answers are combining the muscular system and skeletal system into the "musculoskeletal system".
A. nervous system → musculoskeletal system – circulatory system - nervous system
B. nervous system - musculoskeletal system — nervous system musculoskeletal system
C. musculoskeletal system - nervous system - circulatory system – musculoskeletal system
D. musculoskeletal system – circulatory system – musculoskeletal system - nervous system C
Answer:
c
Explanation:
sana makatulong HAHAHAHA
Answer:
The answer is B
Explanation:
The cell knows which amino acids are to be attached to the ribosome during translation by reading the ______________ found on the mRNA
Answer:
The correct answer is - codons.
Explanation:
Each mRNA is made up of the codons that are complementary to the DNA sequence during transcription and once it binds with the ribosome, mRNA strand codes are read by tRNA in triplet code that decides which amino acid would be bind to the ribosome during translation to synthesize the polypeptide chain. For instance, if mRNA has CCG codon then tRNA should have GGC anticodon should have bound.
How do wetlands improve water quality in an ecosystem? A) Wetlands have filter feeders that clean the water. B) Wetlands have microorganisms that clean the water. C) Wetlands only have dirty, swampy water.
Passive immunity provides more rapid protection then does active immunity true or false
Answer:
true
This is the major advantage to passive immunity; protection is immediate, whereas active immunity takes time (usually several weeks) to develop.
hope this helps:))
What is the function of the type of muscle that is pictured below?
-support and movement of the skeleton
-movement of food through the digestive system
-contraction and relaxation of the heart
-generation and conduction of electrical signals
Answer:
answer is B
Explanation:
PLEASE HELP!!!!!!
The bicarbonate buffer equation suggests that for every CO2 which reacts with water, we form one H+ and one HCO3-.However, after CO2 is added to the blood in systemic capillaries, I observe a lot more HCO3- in the plasma than H+. what happened to the H+ that was produced?
Speckled trout and red drum both prey on mullet along the Texas coastline. Dead zones are caused by excessive nutrient pollution, along with other factors that deplete the oxygen from the water. What likely effect would increasing dead zones have on the populations of speckled trout, red drum, and mullet?
Answer:
All Three Populations Would Decrease
Explanation:
Dead zones have little to no life in them, and besides the fact that this would mean the popoulations of all of them would just be down because of this, mullet will die out due to nothing to feed on, which will make drums and trout also die out, so all of the populations would go down.
The effect that would be increasing dead zones have on the populations of speckled trout, red drum, and mullet is that the population of all three species would get decrease.
What do you mean by Prey?Prey may be defined as an animal that is hunted and killed by another for food.
Dead zones lead to a decline in biodiversity of that area, due to the excessive nutrient pollution and depletion of oxygen. If the members of mullet species get reduced in an environment, species of speckled trout and red drum feel the shortage of food, and hence they also get eliminated or die from the surrounding.
Therefore, the effect that would be increasing dead zones have on the populations of speckled trout, red drum, and mullet is that the population of all three species would get decrease.
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do yall think chevy, ford, or dodge is better & why.
powerstroke, duramax, or a cummins?
Answer:
huh i like cumin
Explanation:
Answer:
When it comes to pickups, Ford bests Chevrolet in almost every category. Ford trucks ranked higher for safety, performance, reliability, and interior quality. But while Ford took the lead in most categories, Chevrolet didn't trail far behind in performance and fuel efficiency.
Explanation:
Describe the characteristics and classification of seedless vascular and nonvascular plants
Answer:
Vascular plants, also known as tracheophytes, are plants found on land that have lignified tissues for conducting water and minerals throughout the body of the plant.
1. These lignified tissues are also called vascular tissue and consist of water-conducting xylem tissue and food-conducting phloem tissue.
2. Vascular tissue forms a central column, also called stele, through the plant axis for the transport of different substances.
3. Vascular plants are said to have a true stem, leaves, and roots due to the presence of vascular tissues.
4. The root is a true root that enables the plant to anchor onto the soil and gets nutrients from it.
5. The leaves are broad and have stomata that work for gas exchange and support transpiration.
6. The stem of vascular plants is multilayered with vascular tissue that helps in the protection and conduction of food and water.
7. The arrangement of these issues might be different in a different group of plants as it depends on the pattern of division of cells.
8. The xylem is composed of non-living matter, tracheids, and vesicles, hardened by lignin that provides a stiff structure to the tissue. 9. The phloem, on the other hand, contains living sieve elements that are not lignified.
10. Vascular plants are capable of surviving on land due to their ability to transport food, water, and mineral to different parts of the plant by creating pressure through the tissues.
11. Besides, they also have several modifications that facilitate their survival on land.
12. Another essential characteristic of vascular plants is that the principal generation phase in these plants is the sporophytic phase where they produce diploid spores.
13. Vascular plants are tall and large in size compared to the non-vascular plants because of their ability to transport necessary substances to all parts of the body via vascular tissue.
14. It is believed that vascular plants are a more evolved version of non-vascular plants and thus came later in the evolutionary history.
15. Vascular plants are divided into two groups; non-seed plants or lower vascular plants or cryptograms and seed plants or higher vascular plants or phanerogams.
16. The lower vascular plants include plants like ferns that although are adapted to survive on land still have some characteristics of their aquatic ancestry. These plants belong to the group Pteridophyta.
17. The higher vascular plants are numerous and extremely diverse and are further divided into different subgroups.
18.Some examples of vascular plants include maize, mustard, rose, cycad, ferns, clubmosses, grasses, etc.
Answer:
Definition of nonvascular plant
: a simple, low-growing, nonflowering plant (such as a moss or liverwort) that lacks specialized conducting channels for transporting water and nutrients
vascular plants have lignified tissues for conducting water and minerals throughout the plant.
Explanation:
PLEASE HELP ILL MARK AS BRAINLIEST AND GIVE 10 POINTS!!! when force is constant higher acceleration correlates to _____ mass?
a. more
b. equal
c. less
I think B? sorry if I'm wrong.
answer and show proof for brainliest
Answer:
A.
Explanation:
that's why malaria spreads
Which resource is renewable?
Answer:
hydropower, wind energy geothermal power and many more are examples of resources that are renewable. can I get brainest
Two types of cultivation systems
Answer:
Today, there are two divisions of agriculture, subsistence and commercial, which roughly correspond to the less developed and more developed regions.
Explanation:
Hope this helps :)
A geologist and anthropologist work together to study ancient footprints left in a rock unit. The geologists notes the presence of mudcracks in the rock layer. What can she infer about the environment in which the footprints were most likely made?
A) they formed in a vigorous river environment.
B) They formed in a shallow water environment.
C) they formed in a desert environment.
D) They formed in a deep ocean environment.
B, becauuse if the water dried up and left the mud to dry, mud will crack. but water would have to evaporate
The geologists notes the presence of mud cracks in the rock layer. the environment in which the footprints were most likely made They formed in a shallow water environment. hence option B is correct.
What is rock cycle ?Rocks are defined as the naturally formed and non-living earth which are composed by collection of mineral grains held together in a firm, it can be tiny or big.
The Rock cycle is the process where a continuous process occur through which old rocks are transformed into new rock due to cool down of molten magma, when it solidifies become igneous rock.
when the break down of the igneous rocks occur the small particles are transported and deposited which will form sedimentary rocks, When the igneous and sedimentary rocks heated up and under the pressure they change into metamorphic rocks.
The metamorphic rocks are generally subjected under great heat and pressure melt down to form molten magma which again can cool down and solidify into igneous rocks
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Some diseases are diagnosed by looking for antibodies in the patient’s blood. Explain what a positive finding of antibodies means.
Answer:
The patient has/had the disease.
Explanation:
A positive finding means that antibodies were found in the patient’s blood. Antibodies are made when you have a disease in order to help fight off the disease. Therefore, if you have antibodies for a disease, you have or had that disease (Or were vaccinated). Hope it helps :)
Which two populations are likely to increase as a result?
A. yellow perch
B. Snail
C. Otter
D. Terrapin
Answer:
A. yellow perch
B. snail
Explanation:
This is because in the given diagram it has shown that snails and yellow perch are eaten by blue crabs.
If the blue crabs population decrease then they will feed on less snails and yellow perch which will result to its increase in population.
When antibodies cause antigens to agglutinate, it allows them to be disappointed of by phagocytes more easily true or false?
Answer:
true
Explanation:
if you need explanation tell me :D
help me pls or im going to fail
Answer:
c.
Explanation:
Look closely, for key words. In most questions, they like to sneak hints in there but their quite hard to see! Hope it helps! :) I'm not always accurate.
Answer:
biosphere
Explanation:
An increase in heart rate will most likely result in
O (1) a decrease in metabolic rate
O (2) an increase in pulse rate
O (3) an increase in cell division
O (4) a decrease in body temperature
Answer:
O (2) an increase in pulse rate
An increase in heart rate will most likely result in an increase in pulse rate. So, the correct answer is (B).
What is Heart?Heart is a fist shaped organ which pumps blood throughout your body present in the centre of the chest tilted slightly towards the left. It is the primary organ of the circulatory system which pump blood around the body as the heart beats. The blood sends oxygen and nutrients to all parts of the body and carries away unwanted carbon dioxide and waste products from there.
Heart has four chambers (lobes) made up of muscles- two on the left side and two on the right made up of three layers of tissue -epicardium, myocardium and endocardium. These layers are surrounded by the pericardium which a thin outer lining protecting the heart.
It circulates abut 5-8 liters of blood. Heart, blood and blood vessels together make the cardiovascular system. Blood is pumped around your body through a network of blood vessels- Arteries, Capillaries and veins. Heart has four valves which act like gates which keep the blood moving in the right direction.
Thus, an increase in heart rate will most likely result in an increase in pulse rate. So, the correct answer is (B).
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The table lists four major groups of vertebrates, which are animals with a backbone. It also shows whether each group has four important traits.
Which pair of animals have the most similair DNA based on their shared traits?
A. A tuna and a sparrow
B. A frog and a salmon
C. A robin and a Salamander
D. A snake and a lizard.
Answer:
I believe D
Explanation:
Answer:
D
Explanation:
I just did the test
Describe the role of acetylcholinesterase in stimulation of a muscle fiber.
Answer:
"It is the enzyme that breaks down acetylcholine in the synaptic cleft, ending stimulation of the muscle fiber. -It is the type of receptor found in the motor end plate that binds acetylcholine, initiating an electrical impulse."
Explanation:
what are testestorone
Answer:
Testosterone is the primary sex hormone and anabolic steroid in males. In male humans, testosterone plays a key role in the development of male reproductive tissues such as testes and prostate, as well as promoting secondary sexual characteristics such as increased muscle and bone mass, and the growth of body hair.
1. Stomata are found on (1 point)
a flowers.
b leaves.
c stems.
d leaves, stems, and roots.
the stomata are mostly found on the under surface of plant leaves
Imagine that a large amount of pesticide was spilled onto the ground, and the plants near the spill died. If the deer in the area did not have enough plants to eat, and wolves need the deer for food, what might happen to the deer and wolves?
The deer and wolf population would decrease because the deer have less plants to feed on while already being eaten by the wolves, and eventually the wolves will have less deer to feed on which will decrease their population
please help question and choices are in image below
Answer:
A)1
Explanation:
because it is DNA Adenine pairs with Thymine
Why are fracking liquid waste pools harmful to the environment?
When fracking liquid waste is left in pools on the surface, _________
can evaporate into the air and contribute to
pollution.
Answer:
The correct answer is - volatile organic compounds.
Explanation:
Fracking liquid waste is a type of waste that is producing during the oil drilling process by hydraulic fracturing. It produces some toxic and carcinogen substances that are needed to treat properly or these will mix with drinking water.
Other than these toxic substances the fracking liquid waste also produce volatile organic compound due to oil drilling which is very harmful to the environment as these organic compounds can evaporate and move to air and atmosphere to contribute to pollution.
Answer:
volatile organic compounds.
Explanation:
plato yw.
rnai is used for one of the following purposes
A) to clone a particular gene
B) To disrupt a DNA
C) To verify the function of a gene
D) To produce a New gene
3 rules that can identify chemical reactions
Answer:
1)colour change
2) fizzing or bubbling
3)odour change
Explanation:
you can also say temp change, formation of a precipitate or smoke being formed but those are the main 3 i know
In order to be called homeostasis the conditions involved must be found where in an organism?
body temp, blood glucose, pH levels, etc
im not 100% sure this is correct i hope it helps :)
Ocean ecosystems are most impacted by which two factors?
A. Number of fish and salinity
B. Pollution and boat traffic
C. Depth and distance from shore
D. Light and nutrient availability
Answer:
B. Pollution and boat traffic
Explanation:
The ocean ecosystem is most impacted by pollution and boat traffic. Thus, option C is correct.
What is an ocean ecosystem?Aquatic environment with concentrated saline conditions, including open oceans, deep sea oceans, and coastal marine ecosystems, each with assorted physiological and biological features.
Marine ecosystems are consist of biotic and abiotic factors. Biotic factors include living organisms, including plants, animals, and microorganisms. Abiotic factors include non living things, including amount of nutrients, availability of gases, sunlight, temperature, and pressure.
But pollution and boat traffic has direct and deadly effect on wildlife. after consumption of microplastic thousands of animals live sea turtles and seals are killed. Nitrogen emitted by boats in oceans disturbs the ecosystem. Therefore Option C is correct.
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