Answer:
A
Explanation:
Topography of a watershed also determines the steepness of the land surface and stream channels. We also know this steepness as slope, grade or gradient. The height and steepness of the hills, floodplains and channels contribute to the erosive power of the water in a watershed and its stream channels.
How do traits that are
beneficial to organisms
increase in a population?
A. random mutations
B. DNA recognizes beneficial traits and
keeps them.
C. Natural selection "selects" those traits
over others.
Answer:
C
Explanation:
Positive natural selection, or the tendency of beneficial traits to increase in prevalence (frequency) in a population, is the driving force behind adaptive evolution. ... At the molecular level, selection occurs when a particular DNA variant becomes more common because of its effect on the organisms that carry it.
Qué hormonas y funciones se relacionan con los organos digestivos y escretores?
Answer:
Las hormonas controlan las diferentes enzimas digestivas que se secretan en el estómago y el intestino durante el proceso de digestión y absorción. Por ejemplo, la hormona gastrina estimula la secreción de ácido del estómago en respuesta a la ingesta de alimentos. La hormona somatostatina detiene la liberación de ácido del estómago.
Explanation:
The cell walls of a plant consist mostly of cellulose, a carbohydrate, which provides a strong structure. The cell membrane gets its structure primarily from lipids, and embedded proteins allow for material transport.
Answer:
Common to all plant species, the cell wall is the tough outer coat that protects the plant cell. The cell wall is mostly carbohydrate‐based, comprising three major classes of polysaccharides: cellulose, hemicellulose and pectin. There are also important structural proteins as well as phenolic and aliphatic polymers.
Explanation:
According to appearances, which light produces the healthiest plant?
Green
Blue
Yellow
Red
Answer:
Blue light
Adding 10-20% blue light allowed plants to grow much healthier, with a compact appearance. There is also far-red light which is has wavelengths that are lower than normal red light–similar to near-infrared wavelengths. Far-red light helps the plants produce greater yields.
what is archaibacteria??
archaea, (domain Archaea), any of a group of single-celled prokaryotic organisms (that is, organisms whose cells lack a defined nucleus) that have distinct molecular characteristics separating them from bacteria (the other, more prominent group of prokaryotes) as well as from eukaryotes
how do geologists fill gaps in the rock record?
Answer:
Through assumptions
Explanation:
An object weighs 40kg on Earth. Describe how the weight of an object would change if it were put on the moon.
The weight would decrease because there is less gravity on the moon.
The weight would increase a little because of more gravity on the moon.
The weight would not change because the amount of matter is the same.
The weight would change because the amount of matter changes with gravity.
Answer:
The weight would decrease because there is less gravity on the moon
Explanation:
This is because the acceleration due to gravity on the moon is a third of that on earth
how is the universe organized into systems and galaxies
Which of these is considered a long-term effect of alcohol abuse?
Answer:
you didnt give the options for the awnser but these are some examples...
Explanation:
The long-term effects of alcohol abuse include alcoholism, liver disease, pancreatitis, malnutrition and cancer.
What is something that exist but doesn’t have anything to do with science, law or rules, or religion
Answer:
does a table have anything to do with science, law, or religion? pretty sure tables exist.
ASAP need answer fast!!!
The louse Cymothoa exigua lives inside the mouth of certain fish. It attaches to the fish’s tongue, strangling it until it falls out. Once the tongue falls out, the louse functionally replaces it. Generally, this is thought of as a parasitic relationship.
What criteria would need to be met for this relationship to be considered parasitic? Is it possible that this relationship could be an example of mutualism or commensalism? Use what you have learned to classify this relationship and explain your reasoning.
Answer:
It enters fish through the gills and the female attaches to the tongue, with the male attaching on the gill arches beneath and behind the female. Females are 8–29 millimetres (0.3–1.1 in) long and 4–14 mm (0.16–0.55 in) wide.
Explanation:
Mark me as brainliest
A connection must meet specific requirements in order to be classified as a parasite: the parasite must obtain a benefit at the expense of the host, possibly endangering the fitness or survival of the host. In the case of the fish host and the louse Cyamothoa exigua, the louse benefits by using the fish's tongue as a site of attachment and protection.
Although damage to the fish's mouth would suggest a parasitic relationship, commensalism is another possibility. Commensalism occurs when one organism benefits while the other suffers little or no real harm. In this instance the fish loses its tongue, but the louse does not aggressively threaten the existence of the fish as a whole.
However, the relationship is more accurately defined as parasitic. A fish's ability to eat and possibly survive is directly affected by the loss of its tongue. This loss of fitness for the host points to a parasitic relationship as the louse benefits the host while harming it. Even though the louse effectively replaces the fish's tongue, the initial damage and potential consequences for fish survival outweigh the requirements of a parasitic relationship.
Learn more about parasitic relationship, here:
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What process adds carbon dioxide to the air?
nitrogen cycle
water cycle
respiration
photosynthesis
Answer:
Respiration
Explanation:
Photosynthesis removes carbon dioxide.
Nitrogen cycle deals with nitrogen, not carbon.
Water cycle deals with water, not carbon.
Answer:
la respiración
Explanation:
The average sperm count in the developed world has fallen by one third over
the last 15 years.
The present average sperm count is 30 million/cm of semen.
Calculate the average yearly fall in sperm production over the 15 year period.
Answer:
look in your sperm sock & you will find the answers you seek
Explanation:
>B)
Two particles, a neutron and an electron, are to be added to this model.
In what location should each be added?
Answer:
Electrons are part of the atom, but are "orbiting" around the nucleus, which is composed of the protons and neutrons. The protons determine the elemental properties (valence states) and the neutrons determine the isotope and total mass (with the protons)
Explanation:
Electrons are part of the atom, but are "orbiting" around the nucleus, which is composed of the protons and neutrons. The protons determine the elemental properties (valence states) and the neutrons determine the isotope and total mass (with the protons)
The particles of neutrons are to be added to the nucleus of the element, while the particles of electrons are added to the orbiting shells that surround the nucleus.
What are Neutrons and electons?Neutrons and electrons may be defined as subatomic particles having different charges and masses. The particles of electrons are negatively charged while the particles of protons are neutral i.e. bearing no charge.
Electrons are always revolving around the orbiting shells around the nucleus. The nucleus of the element is composed of protons and neutrons. The neutrons specify the atomic mass as well as isotopes of numerous elements.
Therefore, the particles are always added to the position where they actually belong to. Similarly, the particles of neutrons are to be added to the nucleus of the element, and the particles of electrons are added to the orbiting shells.
To learn more about Sub-atomic particles, refer to the link;
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The mass of a block was measured using a triple beam balance. Using the picture, determine the mass of the block.
A.
709.4 g
B.
79.4 g
C.
970.4 g
D.
179.4 g
the answer is ..
179.4
Answer:179.4
Explanation:
I need help with this please
Answer:
a. Will the pig bite if given food and belly ribs?
b. If I rub porkules's belly and feed him everyday, then he will be nicer to me.
c. The independent variable would be how much you pet or feed the pig.
d. the pig's "niceness", or how much he would try to bite your hand.
e. Mr Wick can say that his hypothesis was correct.
f. I would change the independent varible to add more measurements of food, to see if the amount of food also affects the pig's mood.
-hope this helps :)
Amylase works best at a neutral pH of 7. Where in your body are there enzymes which work best
at an acidic or low ph?
how many significant digits are there in 0.00840, 15.7, and 13.040?
Answer:
3sf, 3sf, 5sf
Explanation:
hope it helps!!!
The activation energy of a reaction can be decreased by
A.
increasing the concentration of the reactants.
B.
increasing the temperature.
C.
increasing the pressure of gaseous reactants.
D.
adding a catalyst.
Hi,
The answer is D
Hope this helps
Yannick’s class measured the width of one leaf several times. The values that the class recorded included 10 mm, 8 mm, 15 mm, 5 mm, and 13 mm. What is lacking from the measurements that the class made?
calibration
precision
repetition
validation
Answer:
Choose precision
Explanation:
2
Question 2 Matching Worth 4 points)
(01.02 LC)
Match each term with its description
Match
Biosphere
Ecosystem
Biome
Habitat
A) A place in an ecosystem where an organism normally lives
B) Includes all diving things and the areas in which they live
C) A large geographical area classified by its climate and the plant
and animal life within it
D) Includes all living things functioning together with the physical
factors of their environment
Answer:
Good luck
Explanation:
A) is Habitat
B) Biosphere
C) Biome
D) Ecosystem
Answer:
Explanation:
A) is Habitat
B) Biosphere
C) Biome
D) Ecosystem
Use the example of changes in height of boys and girls to explain what a generalization is
Answer:
boys are long, which they should be
Explanation:
State the 3 points of the Cell Theory
Answer:
1: all living things are made up of cells.
2: cells are the smallest units.
3: all cells come from preexisting cells through the process of cell division.
Explanation:
Akeem cut his finger during an investigation, and it is bleeding slightly. Before helping him bandage the wound, which precaution should the teacher take?
The teacher should clean the wound
Explanation:
the cut could've gotten something in it
differentiate between Angiosperms and gymnosperm
Answer:
Angiosperms are vascular plants bearing the seeds in fruits or mature ovaries whilst gymnosperms are other types of the plant which bears the seeds directly on the sporophylls but without any cover.
Explanation:
Examples of gymnosperms include cypress,pine, redwood, spruce and ginkgo.
Examples of angiosperms include apple, banana,peach, cherry and orange.
Also, angiosperms are seeds producing flowering plants whose seeds are enclosed within an ovary.
Gymnosperms are also seeds producing non flowering plants whose seeds are unenclosed.
Hope it helps.
Please mark as brainliest .
What are some variables that could influence photosynthesis and cellular respiration?
Explanation:
Some variables that could influence photo synthesis are and cellular respiration ars
the intensity of the light being absorbed by the chloroplasts.
the concentration and availability of CO2 (Carbon Dioxide)
the temperature.
How do scientists determine the relative age of a rock or fossil
Answer:
they use carbon 14 which has a half life of 5730 years
6. What are at least 2 requirements of a good hypothesis?
Answer:
A scientific hypothesis must be testable, and;
A scientific hypothesis must be falsifiable.
Explanation:
I looked it up o-o sorry if its wrong. :3
Which type of carbohydrate is this?
A) Monosaccharide
B) Simple sugar
C) Complex carbohydrate
D) Disaccharide
Answer:
A
Explanation:
monosaccharide is derived from mono, meaning "one", and saccharide, meaning "sugar". The common monosaccharides are glucose, fructose, and galactose. Each simple sugar has a cyclic structure and is composed of carbon, hydrogen and oxygen in ratios of 1:2:1 respectively. Although each sugar mainly exists as a cyclic compound, it is important to note that they are all in equilibrium to a small extent with their linear forms.
While galactose and glucose are composed of six-membered rings, fructose has only five carbon atoms bonded to each other in ring form.
what makes the pelvic girdle more rigid than the pectoral girdle
Explanation:
The pectoral girdle is weaker than the pelvic girdle because the pelvic girdle is the primary weight bearing and locomotory structure for the body through the attachment of the legs where as the pictoral girdle is the site of the arm attachment which is more for dexterity
