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 :)
For each of the following terms related to regulation of the cell cycle, briefly describe how that term functions in normal cells. Then, describe how that term may be disrupted in the context of cancer cells. a. density-dependent inhibition i. normal cells – ii. cancer cells – b. anchorage dependence in. normal cells – ii. cancer cells – c. growth factors i. normal cells – ii. cancer cells
Answer:
- Density-dependent inhibition refers to the mechanism by which cells limit their density due to cell-cell contacts. Cancer cells may not undergo density-dependent inhibition, while normal cells exhibit density-dependent inhibition.
- Anchorage dependence refers to the mechanism by which cell stop their division after they form a single layer on a substrate. Cancer cells may not undergo anchorage dependence and therefore they continue to divide, while normal cells undergo apoptosis (programmed cell death)
- Growth factors are signaling molecules (often proteins and peptides) that promote cell division. Overexpression of these factors may lead to carcinogenesis (i.e., the proliferation of cancer cells), while the expression of these factors is normal in normal cells.
Explanation:
Density-dependent inhibition is the mechanism exhibited by normal cells which stops cell division once a threshold density value is reached. In general, cancer cells lost the density-dependent inhibition of growth and therefore they continue dividing. Anchorage dependence refers to the increase in the proliferation of cells that are attached to a solid surface. Most normal cells display anchorage dependence and therefore they need contact with a solid surface to proliferate, while cancer cells are independent of this attachment, proliferating and invading tissues (metastasis). Finally, growth factors are molecules capable of stimulating cell proliferation and cellular differentiation. In consequence, overexpression of growth factors may lead to cancer due to the uncontrolled division of cancer cells. Some examples of growth factors are Epidermal growth factor (EGF), Fibroblast growth factors (FGF) and Vascular Endothelial Growth Factor (VEGF).
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
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:
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:
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.
How can the rate at which bacteria are evolving to be antibiotic resistant be slowed down by humans?
A.
use a variety of different antibiotics
B.
reduce the usage of antiobiotics
C.
apply fewer pesticides to crops
D.
Both A and B
Answer: D. Both A and B
Explanation: Bothe A & B would help with B being the most effective method of slowing antibiotic resistance. Not using antibiotics when not absolutely necessary would be best but when necessary using a variety instead of reliance on a popular few would help.
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:))
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.
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:
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 :)
please answer!!!! really need to submit this soon!!
Answer:
To my Knowledge and understanding, the name of fluid A is oxygenated Blood or u could simply submit blood. Fluid A does contain red blood cells, namely Hemoglobin. I am not quite sure what fluid B is, but visually it looks like the cytoplasm surrounding cells. According to my knowledge cytoplasm does not contain red blood cells, but rather it contains glucose,sugars and proteins etc.
Hope this helps!
Kind regards
Farah Syed
Explanation:
/-
I’ll mark you as brainliest!
Answer: 3
Explanation:
:)
Answer:
Organ 1
Explanation:
The stomach uses gastric juices/acids to dissolve our ingested food during the digestion process.
Which resource is renewable?
Answer:
hydropower, wind energy geothermal power and many more are examples of resources that are renewable. can I get brainest
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?
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
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.
QUESTION 20
Which of the following is required for the body to function at an optímum level of health?
a. Highly alkaline level
b. State of homeostasis
c. Highly acidic level
d. None of the answers are correct.
Click Save and Submit to save and submit. Click Save All Answers to save all answers.
e to search
a
s
Answer:
Set priorities.
Manage your time well.
Manage your space well (stay organized).
Plan ahead.
Meditate and be mindful.
Set boundaries.
Take control and take responsibility
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.
To learn more about Prey-Predation interaction, refer to the link:
https://brainly.com/question/24537210
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.
Learn more about ocean ecosystem, here:
https://brainly.com/question/7277991
#SPJ3
This space station has plants growing inside it, and astronauts who eat the fruits and vegetables from those plants Because it is in space, the station is sealed so no material can get in or out. The space station is in Earth's shadow, so no light is getting into it. The sensors in the space station show that carb dioxide in the air is increasing. What is happening to the energy storage molecules in the plants and humans in the space station? Explain your a as completely as possible.
Answer:
e
Explanation:
e
Answer:
a
Explanation:
a
Roberto is color blind. Both of Roberto's parents are color blind. Roberto also has a brother and a sister, but neither have been tested for the color blindness phenotype. Roberto's wife Linda has full color vision. Both of Linda's parents have full color vision. Linda's maternal grandfather (her mother's father) has full color vision, while her maternal grandmother (her mother's mother) is color blind. Linda's fraternal grandfather (her father's father) is color blind, while her fraternal grandmother (her father's mother) has full color vision.
Required:
Based on the pedigree you constructed and information provided, explain the inheritance pattern for this trait. Be sure to identify (A) whether the trait is autosomal or sex-linked, and (B) dominant or recessive, and then (C) explain how you identified the inheritance pattern.
Answer: color blindness is an x linked recessive trait
Explanation:
color blindness is an x linked recessive trait as the pedigree shows the following features:
no skipping of generations
affected fathers have carried to daughters
affected mothers have affected sons
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
A healthy college student went to Colorado at the end of the school year for a vacation. While there, he drove to the top of Pike's Peak, a tall mountain. During his first hour on the peak, he walked about but had to sit down to rest three times. The last time was in the weather station. He glanced at the barometer hanging over his head. It read 450 mm Hg. (total Atm pressure). Explain two physiological responses that would increase the amount of oxygen delivered to her tissues.
Answer:
Due to sloppy geography and lower air pressure.
Explanation:
Walking on the sloppy and low pressure are the two physiological responses that increases the amount of oxygen given to her tissues. Walking on the steep and sloppy region requires high amount of energy so for that energy the body needs more and quick oxygen in order to breakdown of glucose for the release of energy that can be used for walking while on the other hand, the low atmospheric pressure have low amount of oxygen in the air so the person needs more oxygen for its breathing so the person breathe air fastly to supply optimum amount of oxygen to the body.
Which layer of Earth is made up partly of crust and partly of Mantle material?
Answer:
asthenosphere is partly made up of crust and partly made of mantle
hope this helps you☺️☺️
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
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:
WILL MARK BRAINLIEST!
Scarlett Witch has telepathic powers. If telepathic powers are x-linked recessive, is it possible that she have a male child that isn't telepathic? Justify your answer by drawing a punnett square.
Answer:
I don't think she could have a kid without powers
Explanation:
please help question and choices are in image below
Answer:
A)1
Explanation:
because it is DNA Adenine pairs with Thymine