Answer:
Directional selection occurs when individuals with traits on one side of the mean in their population survive better or reproduce more than those on the other. ... However, directional selection does not always result in evolution, because it can be constrained in many ways.
Explanation:
In 2019, the United Nations assembled a team of scientists to conduct the biggest ever study of
A
life on Earth.
B
space tourism.
с
genetic diversity
D
human ancestors.
Answer:
A
Explanation:
All the organisms in a community, along with all interacting environment factors, form a (n) ________
A. population
B. community
C. large biome
D. ecosystem
Answer:
D ecosystem
Explanation:
A ecosystem is liveing spiecies interacting with thier enviornment together as a system.
state the taxonomic family to which the virus that causes EVD belongs
Ebolavirus, genus of viruses in the family Filoviridae, certain members of which are particularly fatal in humans and nonhuman primates. In humans, ebolaviruses are responsible for Ebola virus disease (EVD), an illness characterized primarily by fever, rash, vomiting, diarrhea, and hemorrhaging.
I want to know characteristics of reptile, please answer quick :))
Answer:
Reptiles are vertebrates. They have backbones.Their bodies are completely covered with scales.They are cold-blooded.Reptiles produce shelled eggsAll species fertilize eggs internally.All species of reptiles have at least one lungAnswer:
Some of the characteristics of reptiles are :-
Reptiles are cold-blooded.They have dry skin covered with scales, without any glands.They are vertebrates with their body divided into head,neck, trunk and tail.They respire through lungs.Most of them lay eggs.What does it mean to ‘translate’ something? What is being translated in protein synthesis?
Answer:
Answer:
Translation is the process of translating the sequence of a messenger RNA molecule to a sequence of amino acids during protein synthesis. The genetic code describes the relationship between the sequence of base pairs in a gene and the corresponding amino acid sequence that it encodes.
For a second i thought you meant to translate something to another language lol.
29 pt and brainlyyyyyy
Answer:
vision, a
Explanation:
occipital lobe controls eyes
Which are steps that could be used to solve 0 = 9(x2 + 6x) – 18 by completing the square? Check all that apply.
18 + 81 = 9(x2 + 6x + 9)
18 + 9 = 9(x2 + + 6x + 9)
18+ 36 = 9(x2 + 6x + 36)
11 = (x + 3)2
= (x + 6)2
342 =
V99 = (x +
Nbbff
Explanation:
What is the name of this website
or the book?
Answer:
A and D
Explanation:
Name 4 morphological and 2 behavioral traits that can distinguish between a seal and a sea lion.
Answer:
#HEY MATE HERE IS YOUR ANSWER#
Explanation:
Both seals and sea lions, together with the walrus, are pinnipeds, which means "fin footed" in Latin.
But seals' furry, generally stubby front feet — thinly webbed flippers, actually, with a claw on each small toe — seem petite in comparison to the mostly skin-covered, elongated fore flippers that sea lions possess.
Secondly, sea lions have small flaps for outer ears. The "earless" or "true" seals lack external ears altogether. You have to get very close to see the tiny holes on the sides of a seal’s sleek head.
Third, sea lions are noisy. Seals are quieter, vocalizing via soft grunts.
Fourth, while both species spend time both in and out of the water, seals are better adapted to live in the water than on land. Though their bodies can appear chubby, seals are generally smaller and more aquadynamic than sea lions. At the same time, their hind flippers angle backward and don't rotate. This makes them fast in the water but basic belly crawlers on terra firma.
Sea lions, on the other hand, are able to "walk" on land by rotating their hind flippers forward and underneath their big bodies. This is why they are more likely to be employed in aquaria and marine shows.
Finally, seals are less social than their sea-lion cousins. They spend more time in the water than sea lions do and often lead solitary lives in the wild, coming ashore together only once a year to meet and mate.
Sea lions congregate in gregarious groups called herds or rafts that can reach upwards of 1,500 individuals. It's common for scores of them to haul out together and loll about in the sand, comprising an amorphous pile in the noonday sun.
Witch statement about human activity and the environment is NOT true?
how can natural selection account for the long tongues of butterflies?
Answer:
Because butterflies with longer tongues were better equipped to eat nectar from inside flowers, and so it was easier for them to eat and grow. So they were better quipped to survive than those with shorter tongues.
Describe the added “costs” of sexual reproduction for an organism.
O_o
huh
-_0
Photosynthesis???????
organize at least seven of your body's cell processes that require energy
Answer:
search up the question and you find lots of accurate results
Energy is required for a variety of vital biological and cellular functions, including ATP hydrolysis. These include active transport, Purinergic signaling, synaptic signaling, intracellular signaling, DNA and RNA synthesis, and muscular contraction.
What do you understand by cell ?
The fundamental units of all living things are cells. There are many billions of cells in a human body. They provide the body structure, absorb nutrients from meals, turn those nutrients into energy, and perform certain tasks.
Adenosine triphosphate molecules directly provide the energy needed for cellular functions (ATP). One adenosine molecule and three phosphate groups, or Pi for short, make up ATP. The chemical energy that is stored in each ATP molecule is not very large. By dissolving ATP into adenosine diphosphate (ADP) and a phosphate group, this energy may be released.
The energy process include active transport, Purinergic signaling, synaptic signaling, intracellular signaling, DNA and RNA synthesis, and muscular contraction.
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In skin, the cells of the epidermis connect to the basal lamina through cellular junctions known as hemidesmosomes. Select the cytoskeletal element that helps maintain the integrity of this connection. intermediate filaments both intermediate microtubules and microfilaments microfilaments only microtubules only
Answer:
The correct answer is ''intermediate filaments.''
Explanation:
The intermediate filaments are made up of thick and resistant protein fibers, with an intermediate thickness between that of the microfilaments and that of the microtubules. They provide mechanical resistance to the cell, avoiding the rupture of the membranes of the cells subjected to stress. The macromolecules that make up the basal lamina interact specifically with specific receptor proteins present in the plasma membrane of the cell base, which in turn interact in the cytoplasm with filaments of the cell cytoskeleton. When the junction is associated with intermediate filaments, it is a hemidesmosome and when it is the actin cytoskeleton that is anchored in the junction, it is focal contacts. Hemidesmosomes are formed by a dense plate attached to the cell membrane, in which the intermediate filaments are inserted by joining connection proteins, such as desmoplakin, which connect to the cytoplasmic portion of the integral proteins of the cell membrane, which belong to the family of integrins.
HURRY IT’S TIMED I’LL GIVE YOU BRAINLIEST
Which illustrates the relationship between cooling magma and mineral formation?
A. Darwins theory
B. Theory of relativity
C. Bowen‘s reaction series
D. Newtons principle of physics
Answer: C. Bowen‘s reaction series
Explanation:
What is the biggest difference when comparing a prokaryotic and a eukaryotic cell?
Answer:
Well, the primary distinction between these two types of organisms is that eukaryotic cells have a membrane-bound nucleus and prokaryotic cells do not. ... Prokaryotes, on the other hand, have no membrane-bound organelles. Another important difference is the DNA structure.
Answer:
The biggest difference between the two are that eukaryotic cells have a membrane-bound nucleus and prokaryotic cells do not.
describe the cell structure of a typical plant cell. give the functions of each part of the cell structure
Answer: Plant cells have a cell wall, a large central vacuole, and plastids such as chloroplasts. The cell wall is a rigid layer that is found outside the cell membrane and surrounds the cell, providing structural support and protection. Plant cells have a cell wall, a large central vacuole, and plastids such as chloroplasts. The cell wall is a rigid layer that is found outside the cell membrane and surrounds the cell, providing structural support and protection. The central vacuole maintains turgor pressure against the cell wall. Nucleus - DNA Storage, Mitochondrion- Energy production, Smooth Endoplasmic Reticulum (SER)- Lipid production; Detoxification, Rough Endoplasmic Reticulum (RER)- Protein production; in particular for export out of the cell, Golgi apparatus- Protein modification and export, Peroxisome- Lipid Destruction; contains oxidative enzymes, Lysosome- Protein destruction. brainliest?
Explanation:
out of these three gases ( carbon dioxide, hydrogen gas, and methane) which could be a component of water
Answer:
Methane
Explanation:
Methane could be a component of Water because it burns in the air to form H2O which is Water. If you see any fault in my answer please let me know. Thanks. Have a good day.
______and____ are early tetrapods that do not have features unique to fish. Describe how these two species differ antaomically and what that means about where they each live.
What is a function of the kidneys of a healthy person?
Answer:
The kidneys act as very efficient filters for ridding the body of waste and toxic substances, and returning vitamins, amino acids, glucose, hormones and other vital substances into the bloodstream. The kidneys receive a high blood flow and this is filtered by very specialised blood vessels.
hope this answer helps you !!
please mark as brainliest .. thank you..
[tex]\huge{\mathbb{\tt { ANSWER:}}}[/tex]
The kidneys act as very efficient filters for ridding the body of waste and toxic substances, and returning vitamins, amino acids, glucose, hormones and other vital substances into the bloodstream. The kidneys receive a high blood flow and this is filtered by very specialised blood vessels.[tex]{\boxed{\boxed{\tt { Kidney \: Function}}}}[/tex]
→ Eliminates WasteThe excretory system removes metabolic wastes from the body. The major organs of excretion are the kidneys, a pair of bean-shaped organs located below the liver. The kidneys filter blood and regulate water balance in the body.→ Regulates Fluid BalanceAbstract. Body fluids are mainly water and electrolytes, and the three main organs that regulate fluid balance are the brain, the adrenal glands and the kidneys.→ Regulates Blood PressureThe kidneys provide a hormonal mechanism for the regulation of blood pressure by managing blood volume. The renin‐angiotensin‐aldosterone system of the kidneys regulates blood volume. In response to rising blood pressure, the juxtaglomerular cells in the kidneys secrete renin into the blood.→ Regulates Red BloodAbstract. Erythropoietin, which is produced by peritubular capillary lining cells of the kidney, is critical to the production of red blood cells. Endogenously produced erythropoietin circulates in the plasma to act on specific target cells in the marrow through cell surface receptors.→ Cell ProductionCell production is a form of mass production that divides work into teams known as cells. Each cell is managed to achieve goals such as quality, efficiency and waste reduction.#CarryOnLearning
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→X x K i m 0 2 x XWhere doed fertilisation take place?
Answer:
please give me brainlist and follow
Explanation:
fallopian tube
Fertilization usually takes place in a fallopian tube that links an ovary to the uterus. If the fertilized egg successfully travels down the fallopian tube and implants in the uterus, an embryo starts growing.
Following fertilization and two rounds of cell cleavage, each of the four cells of a frog embryo has a centriole that is preparing for the next cleavage. The centriole in each of these cells can trace its origins back to the original centriole provided by the _______ prior to the first cleavage. Please choose the correct answer from the following choices, and then select the submit answer button. Answer choices secondary oocyte sperm ootid oogonium primary oocyte
Answer:
sperm
Explanation:
Centrioles are cylindrical organelles that play a major role during cell division, where they work to form the centrosome which duplicates and moves to opposite ends of the cell. The proximal centriole provided by the sperm cell mediates the separation of chromatids during the first cleavage of the fertilized egg. Upon fertilization, the proximal centriole forms the aster rays where microtubules act as a guide for the migration of the female pronucleus.
You discover a new species of ascomycete fungus and find that the diploid nuclei of the fungus contain 22 chromosomes. A single diploid cell in an ascus will undergo one round of meiosis, followed in each of the daughter cells by one round of mitosis, producing a total of eight ascospores. If a single, diploid G2 nucleus in an ascus contains 800 nanograms (ng) of DNA, then a single ascospore nucleus of this species should contain how much DNA (ng), carried on how many chromosomes
Heat is necessary for all of the following processes except for:
A.Condensation
B.Evaporation
C.Melting
D.Boiling
Heat is necessary for evaporation, melting and boiling. The correct option is A.
What is condensation?Condensation is the transformation of water vapor into liquid. It is the inverse of evaporation, in which water turns into a vapor.
Condensation occurs in one of two ways: the air is either cooled to its dew point or becomes really filled with water vapor that it cannot retain any more water.
Condensation happens when warm air collides with cold surfaces or when your environment is overly humid.
When this moist warm air comes into contact with a cold surface, it quickly cools and releases the water, which condenses into liquid droplets on the cold surface.
In the remaining processes, i.e., evaporation, melting and boiling it is required to heat them up.
Thus, the correct option is A.
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Smoking reduces the surfactant layer in the alveoli. This would cause which of the following to occur? (2 points)
A. Depressed macrophage activity
B. Destroyed red blood cells
C. Reduced ability of gases to diffuse through the water layer
D. Reduced ability of gases to enter or exit the alveolar space
Answer:
B
Explanation:
destroyed red Blood cells
Hydraulic fracturing technology is used to produce nuclear power.
a. True
b. False
Answer:
False
Explanation:
The planets in our solar system revolve around the Sun. One revolution is considered to the one year. Year length varies for each planet. The planets DO have one thing in common though. What do they have in common?
A) Day length is the same for all.
B) Their orbits are elliptical in shape.
C) All the planets are solid, orbiting bodies.
D) The force of gravity is constant throughout the solar system.
Answer:
i think letter D.
Explanation:
correct me if im wrong
who is the current preme minister of America
Mr. Joe Biden is the current president of the USA.
The picture below shows a prominence in the sun's atmosphere. Which of these events is most likely to occur as a result of the prominence? (3 points)
the corona would become visible
the auroras would become visible
the sun's photosphere would be blocked
the sun's magnetic effect would decrease
Answer:
B) The auroras would become visible.
Explanation:
Got it right on the test. Hope this helps!
Answer:
B) The auroras would become visible.
Explanation:
did the test
Which of the following molecular models represents an element?
Unit 6 AP Bio edgeunity test answers
Answer:
Test answers? Huh-?