who was the first person to study the embryos of different species

Answers

Answer 1

Answer:

Aristotle

Explanation:

Aristotle was the first person to study the embryos of different species.


Related Questions

the part of the brain that coordinates the movement of skeletal muscles

Answers

I believe it’s the cerebellum.

which animal is the closest living relative to a t-rex?

Answers

Question:-

which animal is the closest living relative to a t-rex?

Answer:-

Chickens

Explanation:-

A small mass of T-Rex DNA was discovered, which closely resembles the DNA of modern chickens, further supporting the fact that chickens evolved from dinosaurs.

The color of a certain fish is a CO dominant characteristic a blue fish and a yellow fish reproduced together what color are the baby fish?
what would the color of the fish be?
please help!​

Answers

Half blue half yellow

Phospholipids in a cell membrane are arranged so that the ______________ heads face the inside and outside of the cell where water is found.
A, hydrophilic.
B, hydrophobic.
C, water-fearing.
D, none of the above.
Please help :)

Answers

A because the head is hydrophilic :)






It is A I hope this helps :D

write an analogy of a negative feedback loop (basically an example of a negative feedback loop but in a story)

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Answer: My life is so hard, I have to WALK to school in the Rain every single day. You think that's Bad I have to walk in the pollution, Which hurts people lungs.. They're is nothing else to say but pollution is one of the top Priority's that are causing the earth to die.

Something like that make feedback about a ad cause on the earth or a good one and turn it into a negative thing.

how do monosaccharides combine to form polysaccharides

Answers

Through condensation reactions

the structure that separates the cochlear duct from the tympanic duct is the

Answers

Answer:

the basilar membrane

Explanation:

The tympanic duct or scala tympani is one of the perilymph-filled cavities in the inner ear of humans. It is separated from the cochlear duct by the basilar membrane, and it extends from the round window to the helicotrema, where it continues as vestibular duct.

what is the meaning of the word treacherous mean in the sentence below

QUICK plzzzz

Answers

Answer:

Explanation:

guilty of or involving betrayal or deception.

"a treacherous agent and a detective working together?"

which organ system removes carbon dioxide from the bloodstream?

Answers

Your respiratory system is the network of organs and tissues that help you breathe. This system helps your body absorb oxygen from the air so your organs can work. It also cleans waste gases, such as carbon dioxide, from your blood.

brief summary of conservation of forests & wildlife

least 10 page

Answers

With the advent of industrialization, several trees have been cut at an alarming rate for raw materials and various other purposes. This felling of trees can be regulated by selective cutting, clear-cutting and shelterwood cutting.

Forest fires are one of the common causes of loss of forests. Sometimes the forest land is set on fire to make the land available for commercial purposes. Once cleared, there can be no vegetation. Natural forest fires are also responsible for the destruction of huge forest covers. Latest fire fighting techniques should be adopted to conserve the forest. However, forest fires are an important part of the ecosystem and it helps replenish nutrients in the soil from dead and decaying matter.

More trees should be planted to increase the forest cover. Trees should be selected according to the geographical conditions of a particular region and proper care should be taken during the growth of trees.

Prevention of exploitation of forestry and forest products is necessary for the conservation of forest.

The existing forests should be protected from diseases by spraying chemicals, antibiotics or development of pest-resistant strains of trees.

the sequence of events that produces another generation of organisms.

Answers

Answer: is known as an life
cycle. Hope this helped!

The sequence of events which produces another generation of organisms is called as the Life cycle.

What is Life cycle?

Life cycle is defined as the series of changes which members of a species undergo from the beginning of a given developmental stage to the beginning of the same developmental stage in a subsequent generation.

In many simple organisms including bacteria and various protists, the life cycle is completed within a single generation where an organism begins by fragmentation of an existing individual and the new organism grows to maturity which then splits into two new individuals, so the life cycle is complete.

Thus, the sequence of events which produces another generation of organisms is called as the Life cycle.

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what is the name of the trait that hides or masks another genetic trait?

Answers

A dominant trait will mask a recessive trait.

A dominant trait is the name of the trait that hides or masks another genetic trait.

What do you mean by dominant trait?

Dominance is the phenomenon of one variant of a gene on a chromosome masking or overriding the effect of a different variant of the same gene on the other copy of the chromosome.

The dominant trait is the one that is the first to appear or express itself visibly in the organism. Example: In human beings, we observe V-shaped hairline.

Dominant individuals are often most influential in their social groups, affecting movement, opinion, and performance across species and contexts.

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Question 3
Mitosis produdes
03 diploid cells
o 1 haploid cells
04 haploid cells
2 diploid cells

Answers

mitosis produces 2 diploid cells

what is happening in the convection layer of the Sun

Answers

Answer:

In the convective zone, the temperatures are cool enough—under 1,800,000 degrees Fahrenheit (1,000,000 degrees Kelvin)—that the atoms in the plasma there can absorb the photons coming outward from the Sun's radiative zone. The plasma gets very hot, and begins to rise upward out of the Sun.

in plants the fertilized egg develops into a multicellular _________ within a female gametangium.

Answers

Answer:

Once fertilization has occurred, the embryo develops within the female gametophyte, and the ovule becomes the seed, complete with a food source (the gametophyte tissue) and a seed coat (the integument).

Why does Iceland have geothermal energy?

Answers

Answer:

Due to the geological location of Iceland (over a rift in continental plates), the high concentration of volcanoes in the area is often an advantage in the generation of geothermal energy, the heating and making of electricity. During winter, pavements near these areas (such as Reykjavík and Akureyri) are heated up.

Explanation:

give me brainlist please i need it thank you if you want

Answer:

Due to the geological location of Iceland (over a rift in continental plates), the high concentration of volcanoes in the area is often an advantage in the generation of geothermal energy, the heating and making of electricity. During winter, pavements near these areas (such as Reykjavík and Akureyri) are heated up.

Explanation:

the origins of the atlantic slave trade were associated with the

Answers

the production of sugar!

the type of cell division that results in four haploid cells is known as

Answers

Answer: Meiosis

Explanation:

cells in your reproductive organs(ovaries and testes)that develop into eggs or sperm
germ cells
body cells
somatic cells
meiosis

Answers

Answer:

Somatic cells or meiosis

Explanation:

Cartilage tissue is invaded by blood vessels and ___________________that first form spongy bone at the primary ossification center in the diaphysis.

Answers

Answer:

osteoblasts

Explanation:

cloning an individual usually produces organisms that

Answers

genetically identical

an organism or cell having two sets of chromosomes or twice the haploid number

Answers

Answer:

Diploid

Explanation:

Sexually reproducing organisms are diploid (having two sets of chromosomes, one from each parent). In humans, only their egg and sperm cells are haploid.

the organ that provides mechanical protection and nutritional support for the developing embryo is the

Answers

Answer:

uterus

Explanation:

Which elements are essential for living organisms to survive? Check all that apply.

Answers

Answer:

carbon, hydrogen, nitrogen, oxygen, phosphorus and sulfur

Explanation:

Answer:

Carbon, hydrogen, oxygen, and nitrogen are the most important elements. Small quantities of other elements are necessary for life. Carbon is the most abundant element in living matter.

Explanation:

hope this helps :)

what is the main function of integrins? PLS HELP ME I HAVE A MIDTERM TOMORROW!!!!

Answers

Answer:

Integrins regulate cellular growth, proliferation, migration, signaling and cytokine activation and release. They play an important role in cell proliferation and migration, aid tissue repair .

Explanation:

Integrity regulate cellular growth, proliferation, migration, signaling and cytokine activation and release. They play an important role in cell proliferation and migration, aid tissue repair .

do prokaryotic cells have membrane bound organelles

Answers

do prokaryotic cells have membrane bound organelles

Answer: No

Explanation : if not mistaken prokaryotic cells have no internal membrane-bound organelles within their cytoplasm , but they do contain ribosomes.

which statements accurately reflect the permeability of the cell membrane? choose all that apply

Answers

Answer:

The hydrophilic part of the cell membrane is A, the phosphate head.

Charged molecules, such as K+ or Ca++ are unable to pass through the lipid bilayer because of their charge and must use a membrane protein to cross the cell membrane.

C, the lipid tails, are hydrophobic and repel water.

Explanation:

Make in you own words
When we leave the calvin cycle we have transformed into G3P which is a sugar that contains 3 of me!
We don’t stay in this form for long though

Answers

When fixed carbon leaves the Calvin cycle or light dependent reactions, it will become the molecule G3P, which is then combined to make glucose. The rest of the carbon is recycled to replace RUBP.

How did the Mafia gain the interest and scrutiny of the public?

Answers

Mafia gain the interest and scrutiny of the public through their unique and fearful actions.

Mafia gain the interest and scrutiny of the public by threatening people in the society as well as killing some of them. The main aim of Mafia is to earn money so they perform many actions in order to gain money from the public such as extortion, kidnapping etc.

The person who gives money to Mafia is safe but that person who refuses to pay money to Mafia will gain the punishment of death so we can say that in this way Mafia gain the interest of the public.

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Which of the following are the two principal end products of photosynthesis? (4 points)
a) Glycogen and starch
b) Glycogen and cellulose
c) Starch and glycerol
d) Starch and glucose

Please help me with the answer, tysm!

Answers

Answer:

Starch and Glucose

Explanation:

Hope this helps

Answer:

The end products of photosynthesis are glucose and oxygen. None of those answers are right..

Explanation:

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