Answer:
Before life began on the planet, Earth's atmosphere was largely made up of nitrogen and carbon dioxide gases. After photosynthesizing organisms multiplied on Earth's surface and in the oceans, much of the carbon dioxide was replaced with oxygen.
Explanation:
please mark me as brinalist
What force powers the transport of eroded material?
A. Nuclear
B. Electromagnetism
C. Gravity
D. Radiation
hurry!
Answer:
Gravity
Explanation:
Mountains crumble. Erosion goes down hill.
Sort the steps of digestion in order from beginning to end.
- The stomach kills some bacteria and breaks food down into chyme.
- Nutrients from dissolved food are absorbed from the small intestine into the bloodstream.
- Water and nutrients are absorbed by the large intestine; chyme becomes waste matter.
- Saliva mixes with food and changes starches into sugars.
Saliva mixes with food and changes starches into sugars is the beginning step of the digestion.
What are the functions of saliva?Saliva is the medium that bathes the taste receptors in the oral cavity and in which aroma and taste compounds are released when food is eaten.
It is composed of water, mucus, proteins, mineral salts, and amylase. As saliva circulates in the mouth cavity it picks up food debris, bacterial cells, and white blood cells.
Saliva moistens the mouth for comfort, lubricates as you chew and swallow, and neutralizes harmful acids. It also kills germs and prevents bad breath, defends against tooth decay and gum disease, protects enamel, and speeds up wound healing.
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Can anyone tell me a simple definition for chemical coordination?
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Chemical Coordination is like the coordination that occurs between 1 or more organs / organ systems in multicellular organisms (for example ↦ humans, animals, birds etc.). During this chemical coordination, cells in the organs / organ systems will produce some chemicals which helps in regulating the activities of other cells in the body.
Example ↦ Endocrine glands in the pancreas secrete hormones which consist of proteins & lipids.
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꧁❣ ʀᴀɪɴʙᴏᴡˢᵃˡᵗ2²2² ࿐
how is the mississippi river Important to the US development
Answer:
It is also one of the world's most important commercial waterways and one of North America's great migration routes for both birds and fishes. Native Americans lived along its banks and used the river for sustenance and transportation.
Explanation:
What are two ways in which white blood cells fight pathogens that have entered the body?
Answer:
They release anti-toxins, which neutralise effect of toxins produced by bacteria
They destroy pathogens is by engulfing/ingesting them.
what is an enzyme controlled biochemical pathway?
Explanation:
A biochemical pathway (also called a metabolic pathway) is a series of enzyme-mediated reactions where the product of one reaction is used as the substrate in the next. Each enzymes is coded by a different gene. ... A mutation within a gene will often result in a non-functional enzyme.
Which of the following does NOT incorporate phosphorus?
Answer:
red phosporus
Explanation:
very comfortable
Which of the following is NOT part of the circulatory system?
lungs
heart
arteries
blood
PLSE HELP ILL GIVE BRAINLIST!!!!.
Answer:
1. changes
2.Adaptations
3. Ecosystem
4.Homeostasis
Explanation:
It is common sense that Morphological Diversity gives Evolution to genetic makeup of coming generation.It can be defined as "change"
Adaptations are certain Methods by which an organism gains certain capalility or advantage towards the changed environment
Ecosystem is where biotic/abiotic component interact
and Homeostatis is the constant of internal conditions of an organism.
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Does anybody know a nice place to watch the fireworks tomorrow around the San Francisco area??
Answer:
In the open
Explanation:
Or next to an attraction nearby
Where does the egg receive its energy from?
options:
a. The ovum contains a large quantity of cytoplasm, which contains nutrients for the first days of development after fertilization. The cytoplasm of the ovum contains over 140 000 mitochondria to produce ATP required for growth.
b. The uterus contains over 140 000 mitochondria to produce ATP and supplies this to the egg for growth.
c. Similar to sperm it receives its energy from fructose through its path to the uterus.
d. The ovum contains a large quantity of fimbria, which contains nutrients for the first days of development after fertilization.
Answer:
Until attachment to the uterus, the developing organism is on its own. That means it needs to supply its own energy, so the cytoplasm of the human egg cell contains many energy-generating factories called mitochondria. Those mitochondria come only from the mother.
a. The ovum contains a large quantity of cytoplasm, which contains nutrients for the first days of development after fertilization. The cytoplasm of the ovum contains over 140 000 mitochondria to produce ATP required for growth.
Explanation:
An endoscope is a fiber-optic medical instrument that emits light. Doctors can insert endoscopes into hollow body parts. Which property of fiber-optic strands makes them most useful in endoscopes?
They can create virtual images.
They are decorative and colorful.
They can transmit data quickly.
They are small and flexible.
Answer:
Sorry i`m late but the answer is they create virtual images
Explanation:
The property of fiber-optic strands that makes them most useful in endoscopes is that they are small and flexible.
What is an endoscope?An endoscope is a medical instrument that consists of a long, thin, flexible tube equipped with a light source and a camera at the tip. It is used by doctors to visualize and examine internal organs or structures within the body. The endoscope can be inserted through natural body openings like the mouth, anus, or small incisions to access various areas of the body.
It allows for direct visualization of the internal organs, capturing real-time images or videos that can be viewed on a monitor. Endoscopes are commonly used for diagnostic purposes, such as examining the gastrointestinal tract, respiratory system, urinary tract, or joints. They can also be used for therapeutic procedures, such as removing polyps, taking biopsies, or performing minimally invasive surgeries.
Endoscopes have revolutionized medical diagnostics and interventions by providing a less invasive alternative to traditional surgical methods.
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Lisa is giving a speech about Pandas. Her speech includes 3 points: 1) where pandas live; 2) what pandas eat; and three) how pandas reproduce. What type of organization is Lisa using?
Answer:
Topical order.
Explanation:
Text structure can be defined as words used to describe how a writer or an author organizes his or her words in a literary work.
A topical order refers to a way of structuring a text or organizing a speech based on the main topic and dividing it into several subtopics in logical categories (steps).
In this scenario, Lisa is giving a speech about Pandas. Her speech includes 3 points:
1) Where pandas live.
2) What pandas eat.
3) How pandas reproduce.
Thus, the type of organization Lisa is using is topical.
In conclusion, a speech or text organized in a topical order has its main points organized as subtopics which are well related with the main topic.
what are the basic units of a chemical element called
Answer:
atoms
Explanation:
atoms are the smallest unit of an element
Which of the following best describes passive transport of materials across a membrane?
Answer:
Passive transport requires energy and moves materials from areas of relatively lower to higher concentration. Passive transport dose not require energy and moves materials from areas of relatively lower to higher concentration
Which best describes a molecule?
a unit made of different kinds of elements
a unit made of only one kind of element
a unit made of two or more atoms
a unit made of a single atom
A unit made of two or more atoms.
Answer:
C
Explanation:
A molecule is a unit made of two or more atoms.
After a severe burn, new skin may grow outward from the hair follicles. Why would new growth originate at the hair follicles
Answer:
xsdcfvgbhnj
Explanation:
What term is used to describe decay that happens in the presence of oxygen?
Answer:
Aerobic Decomposition. When organic materials decompose in the presence of oxygen, the process is called “aerobic.” The aerobic process is most common in nature
The haploid cells that join during sexual reproduction are called
Answer:
During sexual reproducion, two haploid gametes join in the process of fertilization to produce a diploid zygote.
zygote is tje answer:).
There are little birds that spend a great deal of time on the back of a rhinoceros and eat the blood-sucking ticks out of the rhino's ears. The rhino greatly benefits from the relationship, since it cannot remove the ticks itself. The tick-rhino relationship is an example of ________.
Answer:sen
Explanation:when both parties mutually benifit from one another
ਵਚਨ ਬਦਲੋ । ੳ) ਮੋਰ ੲ) ਉਠ
Answer:
hyugbdih
Explanation:
yes
The function of the medulla oblongata is?
A) Vision
B) Hearing
C) Balance/Coordination
D) Basic body functions, heart functions, vomiting, swallowing.
Answer:
d. It also includes , breathing, digestion, swallowing
What are this liquid helium chemical and physical properties?
Explanation:
Helium is a colorless odorless gas. It is lighter than air. It is nonflammable and is only slightly soluble in water. It is chemically inert.
The liver converts ammonia to this much less toxic nitrogen waste _______.
A. Nitric acid
B. H20
C. Acetic acid
D. Urea
Answer:
D. Urea
Explanation:
[tex]2 NH_3 (ammonia) + CO_2 + 3 ATP + H_2O \ => \ H_2N-CO-NH_2 (urea) + 2 ADP + 4 Pi + AMP.[/tex]
3. Which type of climate is characteristic of Antarctica?
A.humid mid-latitude
B.dry
C.polar
D.humid tropical
True or false: During cellular respiration, about 60% of the energy from the glucose molecule dissipates as heat.
Answer:
true
Explanation:
Answer:
true
Explanation:
Which of the following statements describes the conditions of a pneumothorax? View Available Hint(s) Which of the following statements describes the conditions of a pneumothorax? The intrapulmonary pressure equalizes to atmospheric pressure. Both lungs partially or completely collapse. The intrapleural pressure decreases. The presence of air in the pleural cavity.
Answer:
The presence of air in the pleural cavity
Explanation:
A pneumothorax occurs when air builds up between the lung and the chest wall. In consequence, pneumothorax occurs when air gets into the pleural cavity (i.e., the space between the lung and the chest wall) and causes a fully and/or partially collapsed lung. Some of the most common symptoms of pneumothorax include shortness of breath (respiratory distress), rapid breathing, rapid heart rate, fatigue, agitation, dry cough, etc. Pneumothorax can be caused by a chest injury, an accident during a medical procedure, damage from underlying lung diseases, etc.
According to evolutionary theory, species that exist today are the result of a
slow, continuous change of living things over time. Why is this considered to
be a theory and not a law?
A. A law is based on mathematical calculations. Evolutionary theory
is a description based on observations.
O B. A law is supported by extensive research. Evolutionary theory is
an educated guess.
O
C. A law describes natural events but does not attempt to explain
them. Evolutionary theory is an explanation of how living things
have changed over time that is well supported by scientific
evidence.
O D. A law has been proved with scientific evidence. Evolutionary
theory may change when new evidence is found that does not
support the theory.
Answer:
It's answer could be A aur B
Explanation:
not sure but I know that this theory is given by dar VIN
The nuclei (the structure inside a cell that contains DNA) of the cheek cells have been stained using a special dye so that they appear purple. What shape are they
Answer: Oval.
Explanation:
The nucleus of a cell is a membranous structure normally found in the center of eukaryotic cells and is where most of the cellular genetic material is found, organized in DNA molecules (deoxyribonucleic acid) associated with proteins such as histones, which make up the chromosomes.
The function of the nucleus is to maintain the integrity of the genes in the DNA and to regulate gene expression to control cellular activities. It then controls when DNA is transcribed into RNA (ribonucleic acid) and when it is exported to the cytoplasm to be translated into proteins.
The nucleus is composed of a nuclear envelope consisting of a double membrane that surrounds it, as well as pores that allow the passage of RNA for the regulation of gene expression.
The cells of the inner cheek are classified as non-keratinized stratified squamous epithelium. An epithelium is a tissue made up of joined cells that line the outer surface of the body and inner organs. Squamous cells are flat, scale-like, whereas stratified cells are arranged in multiple layers. Non-keratinized means that the cells constitute soft tissue found in the moist parts of our body, such as the mouth, stomach, among others. In a normal healthy cell, the nucleus is uniformly stained, oval in shape and smaller in relation to the cytoplasm.
What process facilitates locomotion for the ovum?
Question 6 options:
a. Once the ovum leaves the ruptured follicle it is captured by the uterus and then directed into the Fallopian tube, where it is pushed along towards the oviducts.
b. Once the ovum leaves the ruptured follicle it is captured by the fimbriae and then directed into the Fallopian tube, where it is pushed along towards the uterus via cilia.
c. Once the ovum leaves the ruptured follicle it is fully matured and propels itself into the Fallopian tube, where it moves along towards the uterus.
d. Once the ovum leaves the ruptured follicle it is captured by the cervix and then directed into the Fallopian tube, where it is pushed along towards the uterus via cilia.
The correct answer is B. Once the ovum leaves the ruptured follicle it is captured by the fimbriae and then directed into the Fallopian tube, where it is pushed along towards the uterus via cilia.
Explanation
Ovulation is a process in which the ovum is released from the ruptured follicle, there it is captured by the fimbriae and taken to the fallopian tubes (where it will be fertilized by sperm) and then it will reach the uterus (the place where the fetus will grow) through the cilia. Additionally, this process is in which the woman is fertile to conceive and occurs around the fourteenth day of the menstrual cycle (which lasts twenty-eight days).
