what team was credited with laying the foundation of understanding DNA with x-ray crystallography studies?
In an animal, which part of the cell is responsible for keeping viruses out?
Answer:
here's your answer
Explanation:
Once attached to a host cell, animal viruses may enter in a variety of ways: by endocytosis, where the membrane folds in; by making channels in the host membrane (through which DNA or RNA can be injected); or, for enveloped viruses, by fusing with the membrane and releasing the capsid inside of the cell.In an animal cell, the lysosome is an organelle of the cell that is responsible for destroying the virus. The virus can enter the cell via endocytosis, but the lysosome can degrade and destroy it to protect the cell.
What is the function of the immune cell?Immune cells such as neutrophils, macrophages, and others play a role in protecting the body from foreign harmful pathogens. They have specific structures for doing so.
Because not all body cells have MHC II or toll-like receptors, cells have different organelles to protect themselves. Cells have lysosomes within them. Lysosomes have an acidic environment that can degrade viral proteins.
When the virus is phagocytosed by the cell, it combines with the lysosome. The lysosome degrades the virus with the help of hydrolyzing enzymes and throws it out of the cells. These are collected by other cells.
Hence, the lysosome of the cell degrades the virus and keeps it out.
To learn more about the immune cell, refer here.
https://brainly.com/question/9924784
#SPJ2
what is the main difference between plant and animal cell
Answer:
The vacuoles are different sizes.
Explanation:
Fertilizer sacks have a three- number value called the NPK value written on them. What does the NPK stand for (18-24-12 written on the bag)?
Answer:
it's a label number
Explanation:
Every label carries three conspicuous numbers, usually right above or below the product name. These three numbers form what is called the fertilizer's N-P-K ratio — the proportion of three plant nutrients in order: nitrogen (N), phosphorus (P) and potassium (K).
what is the system of si unit developed?
How many phylums are there in the kingdom animalia
Answer:
31 phylums in anamalia kindgom
Explanation:
there is no guarantee that this is the correct answer if the number of phylums are changing
In maize, yellow kernel color is dominant to white, and wrinkled kernel shape is dominant to the smooth form. Considering both of these traits jointly in self- fertilized dihybrids, the progeny appeared in the following numbers: 193 white, genes assort independently? Support your conclusion using appropriate statistical analysis. wrinkled; 184 yellow smooth; 556 yellow, wrinkled: 61 white smooth
Answer:
yellow, wrinkled are high in population whereas white smooth is lower in population.
Explanation:
Due to self-fertilized dihybrids, the offspring are yellow wrinkled, hybrid and white smooth. 556 yellow, wrinkled are high in population because of the dominant allele while on the other hand, 61 white smooth are obtained and less in number due to recessive nature that comes very little in the population. 184 yellow smooth and 193 white, wrinkled are the hybrid offspring that has both different characteristics from their parents.
what is photosynthesis?
Answer:
i have written in simple language hope it help u
Explanation:
the process in which green plants prepare their own food with the help of sunlight, water and carbon dioxide is known as photosynthesis.
What is significant about the homeotic genes
in many different organisms?
A. They are all very different in every individual organism.
B. They cause the organisms to evolve.
C. They are similar among organisms early on in development.
D. They control small specific functions in the cell.
Answer:
they control small specific functions in the cell
Explanation:
genes are very crucial in every organisms since they determine the tiniest composition of the cell,evolving from the parent organism.
Answer: it’s c
Explanation:I just answered question
Which part of the respiratory system is where oxygen enters the bloodstream?
Alveolus
Heart
Trachea
Bronchial Tube
Answer:
Bronchial Tube
Explanation:
Within the lungs, the bronchi branch into smaller bronchi and even smaller tubes called bronchioles Bronchioles end in tiny air sacs called alveoli, where the exchange of oxygen and carbon dioxide actually takes place.
The ___ in an experiment is the factor that is being
changed, or tested.
- control group
- dependent variable
- independent variable
- constant
Answer:
Independent Variable
Explanation:
The independent variable is what we are changing or what is being tested.
The control/constant group is when you do not change anything and you want to see how the object acts under normal conditions.
The dependent group is what you are measuring. (aka your data/results)
Hippopotamuses live in Africa’s rivers and lakes. They’re herbivores and coexist with other herbivores and carnivores. Which action could lead to a decrease in the number of hippos?
Answer:
If any of the other carnivores are predator they might eat the hippos. If the other herbivores population incresses there food supply may drop. If there is a drought there habitat will be in danger. Pouchers are also a threat to this animal.
Explanation:
what is science?????
Answer:
Science is the study of nature around us.
Answer:
As scientist discovered that Science is the method of learning everything about the natural world.
Scientists have developed a new type of margarine that contains plant ingredients. They expect that the margarine will lower blood cholesterol levels. They want to test their hypothesis by comparing the blood cholesterol levels of people who will consume the new margarine with those who will consume regular margarine for a few days. Both groups of people will know which type of margarine they are to consume. Which type of research design will the scientists consider
Answer:
intervention study
Explanation:
The intervention study or research helps to examine the effects of an intervention of an outcome of interest. The main purpose of this type of study is to endenger the desirable of the individuals in need.
Such studies are often prospective.
In the context, scientist who have developed a new margarine containing plant ingredients. The scientists wanted to test the hypothesis whether consuming this new margarine lowers blood cholesterol in the body or not. They gave people to consume the margarine and is doing the research study. Such a research design is called as the intervention study.
I need help not sure what to do
Answer:
bskdjfiehu9xitasiyst8zohlxoydti
Please help me with this! *30 *points Picture included
Answer:
1.) The first picture is mitochondria and the second picture is chloroplast
2.) The second one is only in plants
3.) The first one is found more commonly in animal cells
4.) Glucose & oxygen goes into #1 and releases ATP energy and water & carbon dioxide (waste) during cellular respiration
5.) Sunlight and water goes into #2 and releases oxygen (waste)
6.) The waste product from mitochondria is what the chloroplast needs to perform photosynthesis and vice versa for mitochondria where the waste product from the chloroplast is what mitochondria needs to make ATP energy
7.) They both have folds and membranes because this is how energy is transferred from one place to another.
Explanation:
sexual reproduction drives
a)meoisis
b) genetic symmetry
c) reproductive strategies
d) genetic diversity
Answer:
a) Meiosis
Explanation:
Meiosis is a form of cell division that occurs in sexually reproducing animals' germ cells and is utilized to create gametes such as sperm and egg cells. It takes two rounds of division to produce four cells, each with only one copy of each chromosome.
Why is there a limit to the number of levels that a food chain can reach?
What is the likely cause for the Cheetah losing genetic diversity?
Answer: Cheetahs face extinction pressure from climate change, hunting by humans, and habitat destruction, which is reducing the size of their populations. Cheetahs' own genes also pose a challenge to their continued survival
Explanation:
Hope it helps you if not sorry
The endosymbiotic theory helps to explain the origin of which structures?
mitochondria
ribosomes
nuclei
cell membranes
Which of the following is true about glass recycling? a. Recycling glass reduces the rate of deforestation. b. Recycling glass eliminates greenhouse gas emissions. c. Recycling glass is an energy-saving practice. d. Recycling glass has an incredibly short turn around time. Please select the best answer from the choices provided A B C D
Answer:
C.
Recycling glass is an energy-saving practice.
Explanation:
Got it right on the test
The claim that recycling glass is an energy-saving activity, hence option C is correct.
What is glass recycling?Recycling is a beneficial activity that involves recycling things that have been taken from the environment.
Recycled glass production decreases linked to water and air pollutants by 50% and 20%, respectively. Glass recycling frees up landfill areas that would otherwise be occupied by old bottles and jars.
Recycling is a sustainable ecological strategy that might aid in preserving our world. Because recycled materials are used again instead of being synthesized from scratch, recycling may also help us conserve energy.
Therefore, it can be said that recycling glass is a technique that helps to conserve energy, hence option C is correct.
Learn more about glass, here:
https://brainly.com/question/516076
#SPJ2
.
What are the possible offspring outcomes if Parent 1, Tt , crosses with Parent 2, tt ?
Tt , tt
TT , tt
All tt
Answer:
2nd answer
Explanation:
if wrong sorry
An igneous rock has large red, black, and green crystals How else can this rock be accurately described?
fine texture
cooled quickly
intrusive origin
created by lava
write four different between parenchyma and collenchyma?
Answer:
The major distinction between parenchyma, collenchyma, and sclerenchyma cells is that parenchyma cells are engaged in photosynthesis, storage, and secretion, whereas collenchyma cells support and transport nutrients, and sclerenchyma cells support, protect, and transport water.
OAmalOHopeO
What is the function of hemoglobin in the body?
A) It binds with oxygen in red blood cells and it is carried to all parts of the body
B) It carries carbon dioxide around the body mainly
C) It causes stomach ulcers/stomach pain/gas
D) It is a protein marker determining our blood type
Answer:
A
Explanation:
Answer:
A....it binds with oxygen in red blood cells and it is carried to all parts of the body
Explanation:
haemoglobin binds with oxygen to form oxy- haemoglobin..and transported to where it's needed for example cells for metabolism
HELPP
Why is it important that oxygen and carbon dioxide levels be closely regulated in the human body?
A) Both gases are needed for the proper functioning of cell processes
B) Oxygen is needed for cell processes and carbon dioxide is a waste product
C) Both gases are waste products that need to be removed from cells
D) The carbon and oxygen from the gases are needed to build new molecules.
Answer:
B) Oxygen is needed for cell processes and carbon dioxide is a waste product
Explanation:
Cellular respiration refers to the cellular mechanism by which organisms combine molecular oxygen (O2) with organic compounds obtained from foods, it is a chemical reaction that releases 1-energy (ATP), which is used by cells to carry out its functions, 2-carbon dioxide (CO2) and 3-water (H2O). During the gas exchange, O2 is first transported from the lungs to the blood cells, which subsequently deliver nutrients and O2 to all cells of the body. Simultaneously, CO2 diffuses from cells to tissue capillaries, and then this waste product passes from the bloodstream to the lungs where is eliminated.
Categorize the food items below by selecting which macromolecule they are known to contain.
apple
steak
celery
olive oil
potato
avocado
egg
DONE
How do consumers obtain the carbon that they need for their life processes?
They breathe it in from the surrounding air.
They break down the plants and animals they eat.
They absorb it from the surrounding soil.
They absorb it from water through their pores.
Explanation:
They break down the plants and animals they eat
this is because, plants absorb carbon from the atmosphere to grow in the process of photosynthesis, then consumers obtain their food from plants hence obtaining carbon
Answer: B. They break down the plants and animals they eat.
Explanation:
Just got it right on edge
What is true of increased levels of CO2 in the atmosphere?
A. It's poisonous to plants.
B. It helps some plants grow better, while others experience less growth.
C. It reduces the amount of climate change.
D. It always helps plants grow.
Answer:
D
Explanation:
According to the punnet square for this cross, what percentage of offspring is predicted to have blue feathers?
