Answer:
1. Hereditary
2. Gene
3. Allele
4. Trait
In what period did fish, mammals, reptiles, amphibians, and plants appear on earth?
Explanation:
In Cretaceous Period,fish mammals,reptiles,amphibians,and plants appeared on the earth.
The Devonian Period lasted 417 million to 354 million years. Ammonites, starfish, corals, crinoid stems, armored fish, sharks, early bony fish, and early amphibians were among the living things during the Devonian Period.
What is Devonian Period?The Devonian, a Paleozoic era, is also known as the Age of Fishes because it produced a diverse range of fish.
The most fearsome were the armored placoderms, a group that first appeared during the Silurian period and had powerful jaws lined with bladelike plates that acted as teeth.
Throughout the Devonian period, the Earth was hotter and drier than it is nowadays.
Warm and equatorial climates were widespread, as evidenced by the abundance of evaporite basins in the Northern Hemisphere, coal deposits in Arctic Canada and Spitsbergen, as well as pervasive desert circumstances and carbonate reefs.
Dunkleosteus terrelli was the largest species and most likely the largest fish in Devonian times. It could eat almost anything because it was one of the largest and most powerful fish ever.
Thus, the fish, mammals, reptiles, amphibians, and plants appeared on earth in Devonian Period.
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Match the position to the closest estimation of its current career outlook.
agricultural engineer
landscape architect
agricultural managers
loss of more than 5 percent
:: growth of more than 15 percent
growth of less than 10 percent
Answer:
can you rephrase your question im not understaind it, if you can i can answer it for you
Explanation:
How is efficiency related to systems?
fossils of marine organisms hi in the Andes mountains lead Darwin to conclude that???
Answer:
its C
Explanation:
Maintaining homeostasis keeps the internal environment in the body functioning properly. Many organ systems work together and maintain energy homeostasis. The digestive system is concerned with processing the food that we take in to provide essential nutrients to the rest of the body. Which of these body systems works most directly with the digestive system in the absorption of nutrients?
A) urinary system
B) endocrine system
C) respiratory system
D) cardiovascular system
Answer:
D
Explanation:
However, the organ systems also work together to help the body maintain homeostasis. For example, the cardiovascular, urinary, and lymphatic systems all help the body control water balance. The cardiovascular and lymphatic systems transport fluids throughout the body and help sense both solute and water levels and regulate pressure.
Describe the different factors that influence cell division. Include information related to the cell cycle and internal and external factors.
50 points welp
Mums are plants that bloom in the fall.
Which statement describes the photoperiodism of mums?
They bloom when the days are longer.
They bloom when the nights are longer.
They bloom when the temperatures are warmer.
They bloom when the temperatures are colder.
Answer:
They bloom when the nights are longer.
Answer:
2. They bloom when the nights are longer
Explanation:
Photoperiodism means the reaction to length of a day or night cycle, since fall is the beginning of shorter days and longer nights, it is only reasonable that the answer is that They bloom when the nights are longer.
PlLEASE HELP ME> I NEED THIS ANSWER RIGHT NOW. The bass and crayfish likely “died off” because the rapid growth of the algae eventually caused the level of dissolved oxygen to decline to a point that these oxygen-dependent organisms could no longer survive. How would you modify this investigation of the pond organisms to determine if the algal bloom really was the cause of the bass and crayfish die-offs?
Answer:
bacteria blooms and decreased underwater photosynthesis causes hypoxia, killing the fish. c. floating algae die, increasing sunlight penetration and heating the water. ... This has led to algal blooms in the pond which periodically reduce the amount of dissolved oxygen available in the water
Explanation:
mrk me brainliest plzzzzz
What is the meaning of the word subtle as it is used in stanza 5 to describe the
spider's web?
А
very colorful
B
hard to see
C
large enough to catch the fly
extremely sticky
D
Melting ice sheets increase the volume of water in the oceans and reduce the salinity of water. How would this affect:
a) sea animals in polar regions?
b) coastal areas already at sea level?
Answer:your answer is B
Explanation:
In the polar regions if the water goes onto shore it would freeze adding to the icy land and giving sea animals an advantage as all the sea animals would be at the to of the sea level giving a better attack on prey. as in Coastal area it would flood the area causing and flood.
What would happen to zygote if the egg and sprem cells weren't formed with the correct number of chromosomes?
Answer:
A zygote can end up with one fewer chromosome than normal because one of the fertilizing gametes was missing a chromosome. This deletion, called nondisjunction, happened while the gamete was forming.
Explanation:
Check picture please.. help me !!!!
Answer:
a. HH HH
HH HH = 100% black
b. Hh Hh
Hh Hh = 100% blue
c. Hh Hh
HH HH = 50% white or black & 50% blue
Explanation:
I did biology last year as a freshman... hopefully this is correct. <3
3. For each environment below, describe why you think it would have a high or low
rate of speciation.
A rugged mountain terrain (1 points)
w
A large, open forest (1 points)
An island in the ocean (1 points)
Answer: forest high
island high
moutant low
i don't know
The crust is the thickest layer of the earth true or false
Answer:
The crust is not the thickest layer of earth
:)
Answer:
No
Explanation:
The core is the thickest layer of the earth! Which the crust is relatively thin compared to the other layers
GIVING AWAY 14 POINTS PLEASE HELP ME ON THIS QUESTION ASAP!!!!
Answer: i think its B or C
Answer: B
Explanation: Hope this help :D
Why is it important that the seedling’s true leaves grow quickly?HURRY IM BEING TIMED
to help disperse seeds to areas where they can grow
to shield the seedling from too much water or rain
to protect the seedling from receiving too much sunlight
to make food for the seedling’s continued growth
Answer:
The correct answer is - to make food for the seedling’s continued growth.
Explanation:
The true leaves that emerge from the seedlings are the leaves that are capable of performing photosynthesis and start generating food and energy. These support the plant for the rest of its life in terms of food and energy.
Seedlings grow from the soil, two leaves in beginning called cotyledons that are not the true leaves and not able to perform photosynthesis and generate their food for the seedling’s continued growth.
Explain why a topographic map has a key.
Topographic maps represent the locations of geographical features, such as hills and valleys.
What do you mean by topographic maps?Topographic maps use contour lines to show different elevations on a map. A contour line is a type of isoline; in this case, a line of equal elevation.
In modern mapping, a topographic map or topographic sheet is a type of map characterized by large-scale detail and quantitative representation of relief features, usually using contour lines.
A topographic map is a detailed and accurate illustration of man-made and natural features on the ground such as roads, railways, power transmission lines, contours, elevations, rivers, lakes.
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Fungi can appear in what two forms?
Yeast and Hyphae
Explanation:
Ethics focuses on moral issues. Using ethics, people attempt to determine what is good and bad or what is right and wrong.
Which of the following questions involves ethical considerations?
A.
Should people be permitted to have in vitro fertilization?
B.
Should unborn children be tested in the womb for genetic disorders?
C.
Should scientists be permitted to genetically modify plants?
D.
all of these
Answer:
D. all of these.
Explanation:
All of these are the questions that involves ethical considerations because the method used in these questions are not doing naturally. Vitro fertilization is the fusion of woman's egg with the sperm of male outside the uterus of women which is unethical. Testing of unborn children in the womb for genetic disorders and producing genetically modify plants are also unethical because it does not occur naturally. It occurs due to intervention of humans in God's creation.
All of the following are used by taxonomists to create evolutionary links between species EXCEPT
Select one:
a. analogous structures
b. the fossil record
c. molecular data
d. vestigial structures
The fossil record, molecular data and vestigial structure would help taxonomists to create evolutionary links between species except analogous structures.
What do you mean by fossil record?"A fossil record is a group of fossils which has been analyzed and arranged chronologically and in taxonomic order."What is molecular data?"Molecules such as sequence of DNA used in studies of intra-specific variation and studies of similarity among species."What is vestigial structure?"Structures that have no apparent function and appear to be residual parts from a past ancestor are called vestigial structures."What do you mean by taxonomists?"Taxonomists are professionals who specialize in classifying and sorting information based on similar characteristics and patterns."What are analogous structures?The structure of different species performing similar function but are from different origin (do not have common ancestor).The fossil record, molecular data and vestigial structure all would help taxonomists to find evolutionary links between species where through analogous structures no links would be created.
Hence, the correct option is a. analogous structures.
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The woolly mammoth was a relative of modern elephants that lived in the cold northern parts of the world less than five million years ago. Mammoths in warmer parts of the world lacked the warm, shaggy fur the woolly mammoth developed.
Which of the following sentences best describes how natural selection resulted in the woolly mammoth?
Mammoths stopped shedding. Eventually, they lost the ability to shed fur.
B.
Cold climates triggered the growth of thick, warm fur on mammoths.
C.
Mammoths used their hair follicles to grow fur more often, resulting in stronger hair follicles.
D.
Mammoths with thicker fur were more successful at surviving and reproducing in cold climates.
What is true about a trophic level in an ecosystem?
Select all that apply
The amount of energy flowing into secondary consumers must equal the
amount that flows into primary consumers.
The ecosystem is an isolated system.
The ecosystem is an open system
The amount of energy flowing into the secondary consumers is less than
the amount that flows into the primary consumers.
HHEELLPPPHHH
questions for religon:
1- what is the opening sentence of the gospel mark?
2- the beggining of the gospel of john speaks of "the word". Who is the word?
3- the gospel of matthew makes many connections with old testment. Look at matthew, chapter 5, the begging of the sermon on the mount. People reading this chapter who are familiar with the old testment would be reminded of which old testment character? (He also taught the law that he recived from God on a mountain; see Exodus, chapters 19-- 20.
Answer:
1-a voice of one calling in the desert, `Prepare the way for the Lord, make straight paths for him. '" And so John came, baptizing in the desert region and preaching a baptism of repentance for the forgiveness of sins.
2-God
John 1:1 is the first verse in the opening chapter of the Gospel of John in the New Testament of the Christian Bible. In the Douay–Rheims, King James, Revised Standard, New International, and other versions of the Bible, the verse reads: In the beginning was the Word, and the Word was with God, and the Word was God.
3-Matthew 5 is sometimes referred to as the “Sermon on the Mount.” The main focus is on Jesus educating his disciples. He begins preaching to the masses on a mountaintop. The beginning of his message outlines who is blessed and why they receive these blessings.
Explanation: sorry if the third one is wrong
Can you please help me with this...
Answer:
A. Asexual
Explanation:
I majored in Biology
Which of the following organs is a part of the circulatory system? A. liver B. kidney C. stomach D. heart
Answer:
The heart would be the answer
Answer:
(D) Heart
Explanation:
The nervous system is the major ______ system of the body.
A. output
B. control
C. transport
D. protective
Answer:
B. Control
Explanation:
Which of the following is not a health risk associated with ozone?
A) skin cancer
B) cataracts
C) obesity
D) respiratory illneses
Answer:
obesity
Explanation:
The following that is not a health risk associated with ozone is obesity. The correct option is C.
What is ozone?Ozone is a trioxygen inorganic molecule that is of pale blue color. The ozone layer is present in the stratosphere of the atmosphere. It absorbs the UV rays coming from the sun. Thus, it is a protective layer that saves from UV rays.
UV rays are harmful rays that affect health. It creates skin problems and many other health problems. So the ozone layer protects us from UC radiation, it acts as a shield.
Obesity is a condition in which the body becomes fat. It happens with the accumulation of fat in the body. This does not occur with UV rays. It occurs due to food. So this will not be a health risk associated with ozone.
Thus, the correct option is C. obesity.
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Hormones for glucoregulation are secreted by a gland called??
HELP ASAP PLZ
Answer:
Pancreas ( ilets of Langerhans)
Explanation:
all plant bodies(root,stem and leaf) are externally covered by epidermis but why woody plant is covered by barks
Answer:
Bark comprises all the tissues surrounding the xylem in woody plants. Broadly, bark includes an inner and mostly living region and an outer, dead one. Of all plant structures, bark has the most complex anatomical structure and ontogenetic origin involving two (and often three) different meristems.
As to why, the bark adds layers to the inside ring of the vascular cambium, the outside is pushed outward. The cells die off, and the fibrous matrix of cellulose and lignin molecules remain. This hard structure forms the bark, and protects the tree or plant from many forms of damage.
In sexual reproduction, two parents pass traits to the offspring. Create and breed a variety of aliens?