Answer:
NH3 would be my best guess
Explanation:
"NH3 is a covalent bond. This is because, Nitrogen and Hydrogen have shared the electron. The main difference between an ionic and covalent bond is ionic bond will donate or accept electron."
source: https://www.quora.com/Is-NH3-an-ionic-compound#:~:text=NH3%20is%20a%20
True or False: The most fertile agricultural land in North America is used to produce mostly wheat and corn.
12. Flowers whose reproductive structures consist only
of stamens would be able to produce
A) fruits with seeds
B) fruits without seeds
C) pollen
D) ovules
Answer:
Pollen reproductive structures consist only
of stamens would be able to produce
Explanation:
No C is the answer
Reproductive structures are structures that make up the reproductive organs of a particular organism. These structures could include either female or the male reproductive organs.
Flowers with reproductive structures that comprise of only stamen would produce only pollen (option c).
Stamens are reproductive organs found in plants and they are male reproductive organs. For fruits with seeds to be formed the male and female reproductive organs must come together to produce a fruit.
Flowers with only the stamen will produce only pollen which is a male gamete that needs to be joined to the female gamete, ovary produced from the female reproductive structure (pistil) in a plant to produce a fruit.
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Penecillin is a bacterium.
True
False
Answer: False
Explanation:
Answer:
False
Explanation:
They are antibiotics to fight off bacterial infections.
TO INVESTIGATE AND COMPARE THE MOVEMENT OF TWO NAMED JOINTS IN THE HUMAN BODY
Answer:
tendons and knees
Explanation:
the tendons are in the fingers, and they move to allow various actions such as holding things. the knees, allow us to walk, and join the forelegs and legs. their movement is different and they allow various actions, however, both are important.
How long after their discovery did it take the scientific community to accept the existence of cells?
15 years
1 year
150 years
50 years
The first step in selective breeding is to
Answer:
Decide what traits you'd like to amplify or get rid of.
A mammal's red blood cells produce the protein hemoglobin, which carries oxygen through the bloodstream. Its hair follicle cells do not produce hemoglobin. Which statement is true about these differences? A) The red blood cells contain different genes than the hair follicle cells, causing the cells to differentiate B) The red blood cells contain DNA, but the hair follicle cells do not C) A red blood cell and hair follicle cell have the same genes, but they are expressed differently D) The hemoglobin is produced from recombinant DNA, which is only found in red blood cells
Answer:
C) A red blood cell and hair follicle cell have the same genes, but they are expressed differently
Explanation:
All cells of a living organism contain the same genetic sequence i.e. they contain the same set of genes, however, differences in the expression of these genes may occur. This is responsible for the different specific roles or functions played by organs of the body system.
The expression of a gene refers to the process by which a gene is transcribed and translated into a protein molecule, which is responsible for traits in the body. Genes are expressed differently in order for certain cells to function differently and specifically. For example, difference in expression of genes is responsible for the ability of red blood cells to produce hemoglobin and the inability of hair follicle cells to, even if they contain same genes.
A single-celled organism can be classified as a prokaryote based on the absence of-
Answer:
A nucleus and membrane bound organelles.
Answer:
lack of nucleus.
Explanation:
A prokaryote is a simple, single-celled organism that lacks a nucleus and membrane-bound organelles.
2. Animal Nutrition
Question 1
Give one suitable biological term for each of the following
1. Muscular contractions in the intestine causing the movement of food
2. Food that has a high fibre content.
3. A nutritional disease caused by a person refusing to eat.
4. Physical breaking down of food in the mouth by the teeth
5. Finger-like projections in the small intestine
6. The breaking down of large fat molecules into tiny droplets.
7. Process by which the liver converts excess amino acids into urea.
8. Region of the alimentary canal where most of the water is reabsorbed.
9. Muscular organ connecting the pharynx to the stomach.
10. Valve that controls the entry of food from the stomach into the duodenum,
1. Muscular contractions in the intestine causing the movement of food.
Peristaltic movement.2. Food that has a high fibre content.
Fibrous3. A nutritional disease caused by a person refusing to eat.
Malnutrition4. Physical breaking down of food in the mouth by the teeth
Mastication5. Finger-like projections in the small intestine
Villi6. The breaking down of large fat molecules into tiny droplets.
Emulsification7. Process by which the liver converts excess amino acids into urea.
Excretion8. Region of the alimentary canal where most of the water is reabsorbed.
Large intestine9. Muscular organ connecting the pharynx to the stomach.
Esophagus or Oesophagus10. Valve that controls the entry of food from the stomach into the duodenum,
Pyloric sphincterSalad vegetables are cut and placed in plain water. Why?
Answer:
Not only does soaking produce rid it of harmful germs or chemicals, but it can also be used to revitalize produce for a better taste and longer life. If you purchase local, organic fruits and vegetables that contain no chemicals or harmful preservatives, you can use warm water to rinse your produce.
Explanation:
Fun facts:
Through osmosis, water naturally moves from areas of low salt concentrations to areas of high salt concentrations. ... Consequently, the water in a leaf of lettuce that is soaking in salt water will migrate out of the lettuce leaving a mushy leaf behind.
How is mitosis different in plants and animals?
Answer:
tyzhdtyhzftgh
Explanation:
xftghszertryh
Answer:
Explanation:
The most important and observable difference in the plant animal cells mitosis is the cytokinesis. In plants a new cell plate is formed between the daughter cells for the future cell wall, while in animal cells the cell membrane constricts to separates the parent cell into daughter cells.
in a forest ecosystem, which is an abiotic factor? (A) the amount of rainfall (B) the size of the deer (C) the type of trees (D) the number of birds
Answer:
(A) The amount of rainfall
Explanation:
Abiotic means not living, biotic means living. Rainfall is not a livig organism, while the other options are.
Which Ali combination represents a male who has an X-linked recessive disorder
3. Conversion of ammonia to nitrite and then to nitrates is called. a) Ammonification c) Denitrification
b) Assimilation d) Nitrification
Answer:
Nitrification
Explanation:
Nitrifying bacteria present in the soil convert ammonia into nitrite.
Nitrite is then converted into nitrate. This process is called Nitrification.
What is an atom trying to do
when it combines with other
atoms?
A. produce a reaction Ting
B. change state of matter
C. become less stable
D. become stable
Answer:
D. become stable
Explanation:
Atoms like to be stable. The primary reason why atom combines with another atom is to get in a lower energy state. This is why octet rule (where atoms have 8 electrons in outer shell) or duet rule (where atoms need two electrons in their outermost shell) are so crucial because they allow atom to be in the lowest energy form.
An example has been included below:
When an atom is trying to bind with the other atom then it is trying to become stable that is they are trying to come in a stable state. Option D is the correct answer.
It is the gaseous atoms that bind together very fastly and they make the bonds quickly.
In an tom when it is a state of the atom where an atom in its single state is not that stable but when it reaches the correct bonding atom which can stable is electronic configuration and can make stable bonds are called to be in their stable state.
For example oxygen atom in its nascent state that is O state is very unstable and is very reactive in nature that is tryting to form the bonds such that the reactive nature of the atom gets resolved along with the stable state can be achieved.
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What invertebrates only live in salt water?
sponges
echinoderms
mollusks
cnidaria
Answer:
echinoderms
Explanation:
echinoderms are a group of aquatic invertebrates but they are only found in salt water
Answer:
Sponges
Explanation:
They can only live in salt water
can anyone help me pleaseee :)
Answer:
it's C since it's agreed by all so no changes
Answer:
Answer is D
Explanation:
Scientific explanations can be probabilistic. Most scientific knowledge is quite durable, but is, in principle, subject to change based on new evidence and reinterpretation of existing evidence.
help with the graph
if you had it in Spanish
ARTS :
true. or. false.
Answer:
true false true false true
Name the type of cell division that takes place in the zygote of an organism exhibiting haplontic life cycle
Predict the type of relationship between the ant and the ant-lion.
A. Commensalistic
B. Mutualistic
C. Predator-Prey
D. Parasitic
Answer:
C. Predator-Prey
Explanation:
There are predator-prey relationship between ants and antlions.
The type of relationship between the ant and ant lion is Predator-Prey. The correct option is C.
What is predator-prey relationship?Predator-prey relationship implies to the interactions among the two species where one species is the killed food resource for the another one.
The organism that feeds is referred to as the predator while the organism that is fed upon is basically the prey. There are mainly most variety of illustrations of predator-prey relations.
Competition as well as predation are ecological interactions but are not symbiotic.
Predation usually does not take place over a long period of time, along with the competition is an indirect interaction on other resources.
Predation is a symbiotic interaction in which one species sustains life on costuming the another species.
The species that win is the predator, and the species that is lost up is the prey.
Thus, the correct option is C.
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What is Anaerobic Respiration?
a. process of producing energy with oxygen
b. process of producing energy without oxygen.
pls help
Answer:
it is the process of producing energy without oxygen
Which statement best describes the function of the human body system
Answer:
the human body consists of several body systems including integumentary system, skeletal system, muscular system, lymphatic system, respiratory system, digestive system, nervous system, endocrine system, cardiovascular system, urinary system, and reproductive system and the skelital system (please specify which one)
Explanation:
Answer:
Body System Primary Function
Cardiovascular/Circulatory Blood circulation
Digestive Processing food
Endocrine Hormone production
Urinary Waste elimination
Why does all mammals have seven vertebrae (bones) in their neck?
A) all mammals descended from a common ancestor
B) predators only eat animals with six neck vertebrae
C) all animals can turn their heads the same amount
D) all mammals have to stretch their necks to obtain food
Answer:
C I hope I'm right........
..............
What must the pea and lettuce plants take up through their roots to perfum photosynthesis
Answer: The pea and lettuce plants are leguminous plants.
Explanation:
The pea and lettuce plants must take nitrogen from the soil which they get after the symbiotic association with the nitrogen fixing bacteria. Nitrate and ammonia are the two components of nitrogen that can be taken from the soil and used as a source of nitrogen. Nitrogen is required for the growth of plant and it is the important component of chlorophyll pigment. Chlorophyll pigment is necessary for the process of photosynthesis in which the chlorophyll pigment traps sunlight energy that is involved in the splitting of molecule of water into hydrogen and oxygen.
What's the relationship between the angle of isolation and the rate at which the temperature changes?
How are bone and cartilage similar?
a. they are both rigid.
b. they both act as shock absorbers
c. they both contain living cells
d. they both produce red blood cells
Answer:
c they both contain living cells
Meiosis plays a more significant role in reproduction than mitosis in which of the
following ways?
Answer:
A
Explanation:
the first one is the answer
When investigating a crime scene to determine if a suspect is possibly guilty, police often collect DNA evidence from the scene, such as DNA round in hair. What can police do with this DNA evidence?
Answer:
the physical sample of Subject's DNA profile will be destroyed immediately, and in no circumstances held any longer than 30 days; any and all data about Subject's genetic profile derived from that physical sample will be deleted immediately, and in no circumstances held any longer than 30 days. they can use the DNA sample to identify a suspect or use it in a court of law.
Explanation:
Which problem-solving technique involves drawing conclusions from a few observations?
A.
drill-down technique
B.
inductive reasoning
C.
constructive controversy
D.
reverse brainstorming
Answer: B.
inductive reasoning
Explanation:
Inductive reasoning, or inductive logic, is a type of reasoning that involves drawing a general conclusion from a set of specific observations. Some people think of inductive reasoning as “bottom-up” logic, because it involves widening specific premises out into broader generalizations.
Hope it helps if not sorry
