Answer:
Explanation:
DescriptionA biological system is a complex network of biologically relevant entities. Biological organization spans several scales and are determined based different structures depending on what the system is. Examples of biological systems at the macro scale are populations of organisms.
An ecologist decides to study the effect of pathogens of the pollinator of a particular plant species on its reproductive success. Which level of ecological study does this variable represents?
Answer:
pp
Explanation:
When adding 0.734 and 1.7932, how many significant figures should the answer have?
3
4
05
impossible to tell
Answer:
i believe it is 5
Explanation:
Functions of the organ systems of the body.
Classify each of the following physiological functions with the correct body system.
A. Receives sensory input
B. Helps regulate metabolism
C. Produces hormones
D. Produces gametes
E. Maintains posture
F. Differs in males and females
G. Supports the body
H. Initiates motor output
I. Produces heat
J. Produces blood cells
1. Skeletal System
2. Muscular System
3. Nervous System
4. Endocrine System
5. Reproductive System Reset
Answer:
Helps regulate metabolism- Endocrine System.
The production of certain hormones regulate the process of digestion.Gastrin,secretin and cholecytokinin are the hormones of the alimentary canal which regulate digestion. In addition,testosterone,oestrogen,progesterone,and sugar regulatory hormone -insulin are other hormones involved in metabolism.
Produces hormones-Endocrine System
This contains certain gland which secretes hormones directly into the blood stream,to be carried to the target part of the body.The endocrine glands are located in different part of the body;The hormones secreted are proteins or cortisol.
Supports the body-Skeletal System
This is the system which contains bones and cartilages for the attachment of ,muscles for locomotion and stability.it form the framework of the body.Therefore the interaction of the muscles and bones is refers to as the skeletal muscular system.The bones can not provide support without the presence of muscles.
Produces heat-Muscular System- this stems from shivering.it refers to spasmodic contraction of the muscles due to drop in body temperature to generate heat.it is an auto-regulatory mechanism to rise the body temperature when this drops below baseline.
Differs in males and females-Reproductive System
This is designed the male organ as an intromittent organ(Penis) with two testis for sperm production,and the opening as(Virginia) in female
Maintains posture - Muscular System.
it is the contraction and relaxation of the muscles which ensures posture.The musculo-skeletal systems which ensures posture,stability in animals ensures the bones and muscles are aligned.
Produces gametes-Reproductive System-Ovaries in females and testis in males are the sites of ova and sperms respectively as the gametes
Receives sensory input- Nervous System- the PNS send sensory inputs to the CNS for coordination of the Nervous system.These inputs are sent from the receptors.
Produces blood cells-Endocrine System
This is exemplified with the thymus which helps in the production of white blood cells,from its location in the neck
Explanation:
4 Convection is the internal energy transfer that
drives volcanic activity. During convection,
A. Earth's interior is heated by radioactive decay.
B. hot materials in Earth's interior move toward
Earth's surface.
C. the materials inside Earth are heated by
gravitational contraction.
D. the sun warms Earth's surface, making its
interior warm.
Answer:
a
Explanation:
Bacterial species have evolved over millions of years to fill almost every available environmental niche on this planet. Despite this impressive radiation, bacteria are still limited by the availability of carbon and nitrogen sources for their metabolisms. Bacteria may express many different proteins required for uptake and utilization of these compounds for use in their metabolisms. Organic compounds containing carbon and nitrogen are required for both anabolic and catabolic reactions that comprise a cell’s metabolism. Not all bacterial species have the same abilities, so you can use this characteristic to differentiate bacterial species by determining which carbon- and nitrogen-containing media support the growth of the bacteria. Determine whether the following enzymatic reactions are anabolic or catabolic and place them within the correct bin.
1. Glucose is broken down into two pyruvates.
2. ammonia is added to glutamate to form glutamine.
3. four amino acids are linked together to form tetrapeptide.
4. a uracil base is added to a mRNA strand by RNA polymerase.
5. starches are digested into individual glucose molecules.
6. ribose and inorganic phosphate are bonded to form a nucleotide base.
Answer:
1. Glucose breaks down into two pyruvates. CATABOLIC
2. Ammonia is added to glutamate to form glutamine. Anabolic
3. Four amino acids join to form tetrapeptides. Anabolic
4. A uracil base is added to an mRNA strand by RNA polymerase. Anabolic
5. Starches are digested into individual glucose molecules. CATABOLIC
6. Ribose and inorganic phosphate join together to form a nucleotide base. Anabolic
Explanation:
Chemical reactions are classified as anabolic and catabolic depending on whether they form or disintegrate structures, yielding energy to the medium or taking energy from the medium.
Anabolic reactions are those that take energy from the environment and therefore synthesize very complex molecules, of various bonds such as glycogen, starch, among other polysaccharides.
On the other hand, catabolism leads to the destruction of the unions of a chemical product, that is why they have greater entropy and is thus the greatest disorder.
Catabolism releases energy to the environment, it releases it.
For an anabolic reaction to happen, there must be a catabolic one, since it takes the energy released by catabolism, and for a catabolism to happen, an anabolism must first have arisen, that is, the formation of a molecule or particle that is dissociates.
Choose the right answer from the given question.
1. Name the process of gaseous exchange in the body.
a) Lymphatic system
b) Respiration
c) Cardiovascular system
d) Respiratory system
2. Nose, larynx, pharynx, lungs, trachea, and bronchi are the parts of the respiratory
system.
a) True
b) False
3. Which of the following is NOT the function of the respiratory system?
a) Regulate blood pH
b) Helps in gaseous exchange
c) Protection against blood loss
d) Contains receptors for the sense of smell
3. Which of the following is NOT the function of the respiratory system?
a) Regulate blood pH
b) Helps in gaseous exchange
c) Protection against blood loss
d) Contains receptors for the sense of smell
4. Which of these statements is TRUE for pulmonary respiration?
a) Exchange of gases between alveoli of lungs and the blood
b) Exchange of gases between blood and tissue cells
c) Breathing between the atmosphere and the alveoli of the lungs
d) Production of ATP
5. Which of the following controls the normal breathing process?
a) Amino acids
b) Cholesterol
c) Ventral respiratory group
d) Dorsal respiratory group
Answer:
The answer to #1 I believe would be B, #2 would be True, #3 would be D, #4 would be A and #5 would be C or D, but leaning more towards C.
Explanation:
12. When considering gravity acceleration and the force of acceleration, what must be true?
A. The direction of acceleration must be perpendicular to the direction of the force.
B. The mass of the body must be the same as the acceleration of the body.
C. The direction of the force and the direction of acceleration must be opposite of each other.
D. The direction of the force and the direction of acceleration must be the same as each other.
PLEASE HELP ASAP
Answer:
The correct option is (D).
Explanation:
Newton's second law of motion gives the relationship between the force and acceleration of an object. It can be given by :
F = ma
It means that the force is directly proportional to both mass and acceleration. If the acceleration increase, force will increas. It would mean that "The direction of the force and the direction of acceleration must be the same as each other".
ANSWER QUICK Which is a biotic factor? A. rotting carcass b. rock c. drop of water d. fire
Answer:
a. rotting carcass
Explanation:
Answer:
The correct answer is A. Rotting carcass
"Rotting" If it wasn't alive it would not be able to rot or die. Biotic means living things or things that were alive.
how do energy and information cells relate to eachother
Answer:
well you could be aleck and say they are both cells
Answer:active transport, to contract muscles, to make proteins, and in many other ways.
Explanation:
circle the 3 water molecules on the image
Does fertilizer make a plant grow bigger?
Answer:
yes and no
Explanation:
It depends on the plant and what you want to do to it.
Example some fertillzer can make the plant grow bigger and some make it produce stuff like tomatoes.
3. The time it takes for the number of leaves to increase from 15 to 30 is approximately ___ days (1) 2.0 days (2) 2.3 days (3) 2.9 days (4) 3.2
Answer:
(2) - 2.3 days.
Explanation:
found it on a PDF lol
How many years of cumulative evolution separate chimpanzees from humans?
A. 7-8 million years
B. 2-3 million years
C. 130-140 million years
D. 130-140 thousand years
E. 14-16 million years
Answer: A. 7-8 million years
Explanation:
Chimpanzees are considered the closest species to humans and so a logical question to ask is why they haven't evolved as well or rather why they are still chimps and we are human.
The reason is that our ancestors split and went on different evolutionary paths. This split happened sometime 7 - 8 million years ago which therefore represents the years of cumulative evolution that separates chimpanzees from humans.
three uses of nylon,polyster,rayon, acrylic
Which of the is a characteristic of phloem cells ?
What classification of decay is located on the gingival third on the facial or lingual surfaces of teeth
Answer:
Smooth-surface decay.
Explanation:
Dental caries is a multifactorial infectious disease of the hard tissues of the tooth (enamel and dentin) that arises on the surface of the tooth and can spread to the pulp. Smooth-surface decay are dental caries that originate on the smooth surfaces of the proximal general teeth, or in the gingival third of the facial and lingual surfaces. This cavity forms when plaque builds up and bacteria are not killed on the flat surface of the teeth.
Evolution is biology's core theme that ties together all the other themes. This is because evolution explains
Answer:
The change in the inherited characteristics of organisms over successive generations.
Explanation:
Characteristics that defines a biological organisms are passed down from parent to offspring during sexual reproduction. These characteristic can change over time due to mutation of genes. The new characteristics can either become more dominant; if it enhances the organisms chances of survival, or can die away or even lead to the complete wipe out of the species, if it does not increase the odds of survival of the organism. The mechanism of the development, or eradication of these characteristics is through natural selection, and sexual selection.
its important to know that science is:
Answer:
Science is "Integral to critical and inevitable facets of contemporary existence."
Explanation:
Science seems to be an exploratory, as well as informative or innovative system. It's indeed crucial in determining although many daily lives which include food, energy, medication, infrastructure, luxury, and much more. Science enhances a person's existence at all levels, from an excellent rating to worldwide problems.Describe what the results would look like if the data supports your hypothesis.
Answer:
Please see below
Explanation:
In such a case, the data will indicate a positive trend towards the outcome predicted in the dependent variable. However, the data has to show a significant difference (as indicated by p value) between the measured variables for it to be a valid support of the hypothesis.
21. Name a structure that is in the medial part of the body, located inferior to the lungs and posterior to the intestines. Note: A coronal section would contain this structure and the heart, and it is more caudal than the pancreas.
Answer:
Kidney
Explanation:
The kidney is in the medial part of the body, located inferior to the lungs and posterior to the intestines.
The kidney is the most important excretory organs of vertebrate, which receives blood from the dorsal aorta through the right and left renal arteries and sends out blood through the right and left renal veins. The transverse section of the kidney shows an outer cortex, beneath which is the Medulla and beneath the Medulla, the hollow pelvis of the kidney.
The cortex and the Medulla consist of thousands of nephrons, which are the kidney's structural and functional units. Each nephron consists of a Bowman's capsule, also called renal corpuscle or malpighian corpuscle, with its network of blood capillaries called glomerulus within it. The remaining part of a nephron is a tubule consisting of three distinct portions, i.e., the proximal convoluted tubule, the U-shaped loop of Henle, and a distal convoluted tubule.
The tubule then leads into the pelvis of the kidney via the collecting tubules. The cortex contains only the renal corpuscle and the convoluted tubules, while the Medulla contains the loop of Henle and the collecting ducts. Ultrafiltration of the blood occurs in the Bowman's capsules, and glucose, amino acids, and large amounts of inorganic ions are reabsorbed at the proximal convoluted end from the glomerular filtrate. The sodium salt is actively transported out of the fluid as it passes through the loop of Henle, and finally, water is reabsorbed from the fluid at the distal convoluted tubule and the collecting ducts.
From here, the filtrate passes through the pelvis into the urinary bladder via the ureter. When the bladder becomes full, the urethral sphincter guarding the outlet relaxes so that urine flows out through the urethra.
Urine contains urea, water, and sodium chloride in addition to other compounds. In the presence of antidiuretic hormone, dilute urine is produced. Kidney stones are solid particles formed in the kidneys, which can block kidney tubules.
Thermal energy is the
Answer:
Thermal energy also known as “heat energy” comes from a substance whose molecules and atoms are vibrating faster due to a rise in temperature.
Explanation:
what structural differences makes adenine and guanine different from cytosine, thymine, and uracil? (figure 2-24)
Answer:
Nitrogenous bases have two distinct families known as purines and pyrimidine, nitrogenous are the building blocks or monomer units of the nucleic acids.
The major and significant difference between purines and pyrimidines is the difference in their structures-
The purines are divided into two different bases called adenine and guanine and each of them have a two-ringed structure formed with a 9-membered molecule and 4 nitrogen atoms which makes it a large in size than purines.
The pyrimidines are divided into 3 bases that are cytosine, uracil, and thymine and all these have only one single ring of six members and 2 nitrogen atoms. These are smaller in size.
In the carbon cycle, all animals must consume
other organisms because
A. they can not absorb enough carbon from water.
B. they cannot absorb carbon directly from the air.
C. they are in competition with plants for available
carbon.
D. they require carbon to perform photosynthesis.
Answer:
B. they cannot absorb carbon directly from the air.
Explanation:
Carbon cycle refers to the series of processes through which carbon is exchanged between living and non living components of the environment. During the carbon cycle, animal organisms feed on one another in order to obtain energy, a characteristics that makes them HETEROTROPHIC.
Unlike plants, animals cannot perform photosynthesis, which turns solar energy into biomass (carbon-based). Plants get their carbon source (CO2) directly from air via the stomata on their leaves. Animals, on the contrary, cannot get carbon this way, hence, they need to feed on other animals to get their carbon and energy source.
In the crystal matrix of ordinary salt, the sodium and chlorine are held together by:_______
A. peptide bonds.
B. covalent bonds.
C. ionic bonds.
D. hydrogen bonds.
E. nonpolar bonds.
Answer:
C. ionic bonds
Explanation:
In the crystal matrix of ordinary salt, the sodium and chlorine are held together by: ionic bonds.
Ionic compounds result from electrostatic interactions between ions, which often results from the net transfer of one or more electrons from one atom or group of atoms to another, that is, it is the attraction of oppositely charged ions (cations and anions) in large numbers to form a solid. .
Sodium chloride is an ionic compound made up of family 1 sodium metal and the nonmetal chlorine.
When sodium gives up its valence electron, the positively charged sodium ion is produced; chlorine accepts this electron and the negatively charged chlorine ion is formed.
The two ions have 8 electrons in their outer shell and attract each other, as they have opposite charges. The resulting compound is electrically neutral, that is, it has no charge.
Ionic compounds are crystalline solids, soluble in water, and conduct electricity when molten or in solution. These characteristics are due to the type of bond that holds them together.
Therefore, we can conclude that common salt is an ionic compound because it is made up of cations and anions, where the sodium and chlorine are held together by ionic bonds.
Learn more here: https://brainly.com/question/1053182
Construct the sequence of events leading from a dietary vitamin C deficiency to symptoms such as bruising and breakdown of supporting tissues.
Rank the events from the first to the last.
collagen breaks down
enzyme prolyl hydroxylase is inactive
the triple helix is inadequately stabilized
defects in tissues that depend on collagen
proline is not hydroxylated
tissue levels of ascorbic acid is low
tissues that depend on collagen are subject to breakdown and bruise.
First Last
Answer:
The question is not complete. Here is the full question:
Construct the sequence of events leading from a dietary vitamin C deficiency to symptoms such as bruising and breakdown of supporting tissues. Rank the events from first to last.
- enzyme prolyl hydroxylase is inactive
- the triple helix is inadequately stabilized
- tissues that depend on collagen are subject to breakdown and bruising
- tissue levels of ascorbic acid is low
- collagen breaks down
- defects in tissues that depend on collagen
- proline is not hydroxylated
Kindly find answer below...
Explanation:
Here is the right sequence of events:
tissue levels of ascorbic acid is low enzyme prolyl hydroxylase is inactive proline is not hydroxylated the triple helix is inadequately stabilized collagen breaks down defects in tissues that depend on collagen tissues that depend on collagen are subject to breakdown and bruisingHow can statistics be used in a scientific study?
Explanation:
these are statistic be used in scoentific study.
Design a controlled experiment to test the effect of water temperature on a goldfish. Be sure to include your hypothesis, independent variable, independent variable, as well as the experimental and control groups in your experiment
Answer:
The experimental design involves three fish tanks each containing goldfish and sympatric non-competitive species populations composed of 100 individuals (N = 100), which must be maintained in three different temperature treatments.
Explanation:
1- First fish tank: water to the same temperature than its natural environment (for example 25 C)
2- Second fish tank: water temperature 2°C higher than its natural environment (27 °C)
3- Third fish tank: water temperature 2°C lower than its natural environment (23 °C)
Null hypothesis: temperature treatments does not modify the survival of goldfish populations
Independent variable: temperature treatments
Dependent variable: Goldfish survivance over n generations
Negative control: First fish tank (water to the same temperature than natural environment)
Control group: sympatric non-competitive species populations
What of the following statements is true of a microbiome?
I need help on this question
Answer:
C. Organic molecules is converted to ATP molecules
1. What is your claim? (The claim must be accurate, specific, and answer the question - "Are Viruses Alive?". It is usually only one sentence in length.) 2. What is your evidence? (Include information and facts about viruses from the readings yesterday that support your claim.) 3. What is your reasoning? (How do the "Characteristics of Life" notes taken on Monday support or refute your claim? Use specific examples from the notes to connect your claim and evidence together here.)
Answer:
yes virses are alive because all living organisims have to be alive
Explanation:
hope this helps you