Answer:
1: cell membrane
2. chloroplast
Explanation:
1. the cell membrane is the outer layer of an animal cell since they don't have cell walls
2. only plant cells have chloroplasts
Trees begin from tiny seeds, with a mass of a 2-3 grams, and yet an
adult tree can weigh many thousands of pounds. If matter cannot be
created (Law of Conservation of Matter), where did the "stuff" that
makes a tree come from?
Answer:
mm yes read me
Explanation:
the energy was already there energy never dies it just chooses what it wants to be put into
Sickle-shaped red blood cells result from a mutation in the gene that codes for hemoglobin.
This mutation results in sickle-cell anemia. A partial sequence of bases from a normal
hemoglobin gene and a sequence that results in sickle-cell anemia are shown below.
Normal hemoglobin:
T-G-A-G-G-T-C-T-C-C-T-C
Sickle-cell hemoglobin: T-G-A-G-G-T-C-A-C-C-T-C
What type of mutation is depicted in this sequence?
A Substitution
B Insertion
C Deletion
D Frameshift
Option A
Option B
Option C
Option D
Answer:
Substitution
Explanation:
Substitution is when is a mutation that exchanges one base for another. In this case, the T is an A.
T-G-A-G-G-T-C-T-C-C-T-C
T-G-A-G-G-T-C-A-C-C-T-C
state five ideal conditions required for microbial activity in the ruminant stomach
Answer:
You can find answers on Ggle
1. List the Biomes seen in the above example. Explain why adaptations are needed for each biome.
a. Biome one-
b. Biome two-01
C. Biome three-[ ]
d. Biome four-[ ]
Answer: i dont understand can u DM me
Explanation:
The genetic code is said to be universal. Which of the following lines of evidence would best support this idea?
Data that indicate that the genetic code changes frequently.
Data that are inconclusive about the nature of.
the genetic code.
Data that indicate that some organisms use one or more alternate codes.
Data that indicate that the genetic code is the same in all organisms tested so far.
Answer:
hi here is your answer....
Explanation:
Data that indicate that the genetic code is the same in all organisms tested so far.
becuase,
The genetic code is nearly universal, and the arrangement of the codons in the standard codon table is highly non-random. The three main concepts on the origin and evolution of the code are the stereochemical theory, according to which codon assignments are dictated by physico-chemical affinity between amino acids and the cognate codons (anticodons); the coevolution theory, which posits that the code structure coevolved with amino acid biosynthesis pathways; and the error minimization theory under which selection to minimize the adverse effect of point mutations and translation errors was the principal factor of the code’s evolution.
Which of the following is not true about Australopithecus africanus?
A) Had a larger brain than the modern chimpanzee
B) Teeth were smaller than the modern human
C) They walked upright
D) Found in the African savannah
Answer:
A
Explanation:
the brains of Australopithecus afarensis adults were roughly 20 percent larger than those of chimpanzees.
Australopithecus africanus was not found in the African savannah.
Australopithecus africanusThe Africanus had a larger brain and smaller teeth. It had ape-like features like long arms, sloping face.
The shape of this pelvis proved Australopithecus africanus was able to walk upright on two legs.
Australopithecus africanus is an extinct species that lived in the Middle Pliocene to Early Pleistocene of South Africa.
Finnd out more on Australopithecus africanus at: https://brainly.com/question/7550546
What are a few ways your body maintains homeostasis?
Answer:
Temperature
O Glucose
O Toxins
O Blood Pressure
O pH
Hope this helps!!!
plz mark brainliest
respiration needs light to occur just as photosynthesis needs light true or false
what role do variations have in the theory of evolution by natural selection?
Answer:
variation means that some individuals have traits better suited to the environment than others. so in natural selection everyone's adaptions and traits are different and variated. not everyone is gonna have the best adaptation, that would make everyone op.
make sure to answer it in your own words lol, if you copy and paste itll
link your teacher to this answer
Which is an example of adhesion?
A. water freezing into ice
B. water climbing up a straw
C. water dripping from a faucet
D. water boiling and evaporating
Briefly compare
and contrast
Kingdom Plantae
and Kingdom
Eubacteria.
The Science Duo
Explanation:
di ko po Alam sagot jan ei sorry po
me that causes the testes to produce sperm
22 The
Urethre
of the ele reproductive
cre the procuction of sera ens the transfer of sperm
3. Preejecutory
Fluid
to the fencle's bocy during intercourse
_3 Twe small siends that produce sperm
pe
4. The see thet held the testes. It keeps the testes cwcy from
C. Circumcision
D. Functions
the men's body se the temperature of the sperm stey low enough
for survivel
Já The here of the serm contains the nucleus and the tail of the E Tadpole
Da The tubes in each testis join the larger coiled tube. It is located F. Serinel Vesicles
et the outer surface of each testis, and stores sperm temporerily.
Ez A tube that extends from the lower end of each epididymis and 6. "Wet Dreams
connects with the urethre
__8. Slendisebout 2 inches long and cre attached to the ves deferens H Cowper's gland
near the bese of the bladder.
9. A gland that surrounds the urethra in men
I Testosterone
10. Glend which is located below the prostate gland
J. Scrotum
11 Sperm (from the seminal vesicles) and fluid secreted from the K Prostate gland
cowper's gland and prostrate gland.
12 A small tube that extends from the bladder as well as from each L Penis
ves deferens through the penis to the outside of the body.
13. A
near the bladder contracts, preventing urine M. Foreskin
from entering the urethra when semen is present.
N Testes
14. Secretion that causes a small drop of clear fluid to leave the
penis before semen comes out.
0. Ves deferens
15. The external reproductive organ composed of spongy tissue
That contains many blood vessels.
P. Semen
_16. When semen pesses through the urethra and passes outside the
penis.
Q. Ejaculation
_17. An erection and an ejaculation during sleep.
REpididymis
__18. A fold of skin at the tip of the penis.
S. Muscle
19. When the foreskin is surgically removed after the baby is born.
Answer:
Testosterone is a major part of puberty in boys, and as a guy makes his way through puberty, his testicles produce more and more of it. Testosterone is the hormone that causes boys to develop deeper voices, bigger muscles, and body and facial hair. It also stimulates the production of sperm.
Explanation:
Which one is an example of an organ system
A. Astrocyte (cyte meaning cell)
B. Liver
C. Digestive system
D. Octopus
Need help asap
Answer:
Digestive system
Explanation:
This is the only organ system listed
*ANSWER ASAP!! YOULL GET 11+ POINTS*
How are marine worms and sponges different?
a.) Sponges live in mud, sand, or underneath rocks.
b.) Marine worms exist in more than one phylum.
c.) Marine worms are invertebrates.
Answer:
Segmented marine worms are easily identified by the many visible rings that make up their bodies. Many marine species are found on the sea bottom but are not restricted to it. Sponges are filter-feeding, colonial animals which live together as a larger unit. They appear to be plants but are in fact invertebrate animals. So the answer is (A.) I think.
Filter-feeding colonial organisms, sponges live as a single bigger group. Although they seem like plants, they are actually invertebrate animals. Thus, option A is correct.
What are the different features in worms and sponges?Bilateral symmetry describes how all worms have the same body on both sides. They lack scales and real limbs, even though they might have appendages like fins and bristles.
Each of them belongs to a different phylum, and each phylum is very diversified. They all have the trait of being primitive, basic biological creatures.
Segmented saltwater worms are easy to identify because of their body's many distinguishable rings. The sea floor is home to many marine creatures, but this is not the only place they may be found.
Therefore, Sponges live in mud, sand, or underneath rocks.
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What is the name of this diagram
Answer:
https://en.wikipedia.org/wiki/Diagram
Explanation:
What pea sized organ is located at the base of the brain which is considered one of the major glands in the body?
Answer:
gallbladder
Explanation:
I think I am not sure
Answer:
Pituitary gland
controls the hormonal activity such as FSH and LH in females
Explanation:
Which best describes how energy from the sun helps to maintain life on Earth?
Answer:
without the sun we probably be freezing that's why we need the son it keeps us warm and the sun gives use radiation energy which could help us power things.
Explanation:
How does the heliocentric model of planetary motion explain a star's path across the night sky?
The sky is fixed and rotates around Earth.
Earth moves along its orbit daily to follow the stars.
The rotation of Earth makes objects in the sky appear to move.
Each star creates a different amount of light, imitating movement.
Answer:
The Rotation of earth makes objects in the sky appear to move
The heliocentric model of planetary motion explains a star's path across the night sky by The rotation of the earth makes objects in the sky appear to move; this is in Option C, as this is one of the best concepts on the planetarium models.
What is the significance of the planetary model?The planetary model is very significant, as the heliocentric model, proposed by Nicolaus Copernicus, explains that the sun is at the center of the solar system and shows that the planets, including Earth, revolve around the sun. This heliocentric model provided a more accurate explanation of the movements of the planets and paved the way for future research.
Hence, the heliocentric model of planetary motion explains a star's path across the night sky by The rotation of the earth makes objects in the sky appear to move; this is in Option C, as this is one of the best concepts on the planetarium models.
Learn more about the planetary model here.
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How do humans regulate water levels in the body?
Answer:
Body water homeostasis is regulated mainly through ingested fluids, which, in turn, depends on thirst. Thirst is a sensation created by the hypothalamus, the thirst center of the human body.
Explanation:
What is the definition of Dopamine
Answer:
a compound present in the body as a neurotransmitter and a precursor of other substances including epinephrine.
Explanation:
How many mass extinctions occurred over the past 300 million years?
Select the correct location on the image.
Which structure fuses to form a diploid zygote during sexual reproduction?
Answer: the top one
Explanation:
1. In this process, plants use the energy of sunlight to convert water and
carbon dioxide into high-energy carbohydrates (sugars and starches), and
oxygen as a waste product
a. Calvin cycle
O b. photosynthesis
c. light-dependent reactions
d. cellular respiration
Answer:
Photosynthesis
Explanation:
What is a chromosome? Why are they important? Please be descriptive in your own words
3. Explain the role of adaptation in the theory of natural selection. |
Answer:
The idea of natural selection is that traits that can be passed down allow organisms to adapt to the environment better than other organisms of the same species.
The best way to find out how old a sample of petrified wood (225 million years old) from the
Petrified Forest National Park in Northeast Arizona is by
a.radiocarbon dating
b.potassium-argon dating
Answer:
a.radiocarbon dating
What are the factors that influence the saltiness of water?
Answer:
Evaporation. Evaporation can only take away water volume, not salt content. Hot air around.
Rivers. Rivers can dilute the salt concentration of an ocean. If there are numerous rivers.
Ocean Currents. Function of Ocean currents are responsible in both increasing and.
Ice Formation. The formation of ice takes away most of the fresh water from the ocean.
Explanation:
A 30-year old woman was diagnosed with breast cancer. Which of the following processes that we learned
about today would be helpful to her in treating her cancer, and why?
Selective breeding, because she could be sure her children have no risk whatsoever of also getting breast
cancer.
Gene therapy, because it could actively target the cancer cells in her body as a treatment.
Artificial selection, because it could change her DNA so that she is not prone to breast cancer.
The layers of the skin, from outermost to innermost, are:
A) hypodermis, dermis, and epidermis.
B) dermis, epidermis, and hypodermis.
C) epidermis, hypodermis, and dermis.
D) epidermis, dermis, and hypodermis.
The language of r and a is what
Answer:
R is a programming language and free software environment for statistical computing and graphics supported by the R Foundation for Statistical Computing. The R language is widely used among statisticians and data miners for developing statistical software and data analysis.
Explanation: