Answer:
animals which give birth by laying eggs are called oviparous animals. eg: birds
animals which give birth as alive young ones are called viviparous animals . eg: mammals like cat, dog , human etc.
why is synapsis (crossing over) important for the process of meiosis and sexual reproduction?
10
Eukaryotic cells contain complex organelles that carry out their chemical reactions. Prokaryotes
lack many of these complex organelles, although they have a variety of unique structures of their own.
However, most prokaryotic cells can exchange nutrients with the outside environment faster than most
eukaryotic cells. Why is this so?
A Most prokaryotic cells are smaller and have a higher surface-to-volume ratio than eukaryotic
cells.
B
Most prokaryotic cells are larger and have a higher surface-to-volume ratio than eukaryotic cells.
Cell Biology
Practice Questions
С
Most prokaryotic cells are smaller and have a lower surface-to-volume ratio than eukaryotic
cells
D
Prokaryotic cells are larger and have a lower surface-to-volume ratio than
eukaryotic cells
plz help meeee!!!!!!!!!!!!!!!!!!!!!!!!!!
Answer:
i think it is the middle one
B
Why is it important for biologists to
understand the different types of
interactions in an ecosystem?
Answer:
So they Can work better and quicker
Select ALL the correct answers.
Some individuals of a particular species of sea bird underwent a genetic mutation that resulted in larger beaks. The larger size of beaks helped
these birds to break open dams and other mollusks for food. It also helped them defend themselves against predators. After many generations,
almost all of the birds in the population had big beaks. For which two reasons did this phenomenon occur?
A. natural selection
B. mechanical Isolation
C. prezygotic barriers to reproduction
D. high genetic variation in the species
Answer:
The answers would be A and D I think
Explanation:
Help please! thanks this due today!!!! :)
Answer:
Just shape the pigeon with cardboard than paint it!
Explanation:
Hope this helps have a great night!
SUMMATIVE REFLECTION: What are living things made of? Set a timer for five minutes. Write small. Fill the space below with everything that you remember about biochemistry.
Answer:
All living organisms are made up of one or more cells, which are considered the fundamental units of life. Even unicellular organisms are complex! Inside each cell, atoms make up molecules, which make up cell organelles and structures. In multicellular organisms, similar cells form tissues.
Explanation:
All living organisms are made up of one or more cells, which are considered the fundamental units of life. Even unicellular organisms are complex! Inside each cell, atoms make up molecules, which make up cell organelles and structures. In multicellular organisms, similar cells form tissues.
A salt is formed during a reaction of sodium and chlorine ions. Which type of bonding occurred?
a. hydrogen bond
b. Van der Waals forces
c. covalent bond
d. ionic bond
Vhat is the function of the cell wall in a plant cell?
Answer:
The cell wall gives the plant stability
Explanation:
Answer:
It surrounds the plasma membrane of plant cells and provides tensile strength and protection against mechanical and osmotic stress.
Explanation:
Using f(x) = 3x + 4 find f(3)
Answer:
f(3)=13
Explanation:
f(x)=3x+4
f(3)=(3x3)+4
f(3)=9+4
f(3)=13
plz help me im being timed and i only have 20 minutes left
Answer:
2. stomach not part of the respiratory system
3. lungs not part of the digestive system
4. esophagus not part of the cardiovascular system
5. skin not part of the skeleton
hope this helps :)
Disruptive selection in the environment refers to?
A. One extreme/trait favored
B. Two extremes/traits favored
C. No extremes/traits favored
D. Three extremes/traits favored
Answer:
B - Two extremes with traits favored.
Explanation:
Removes individuals with average valued traits creating two populations with said extreme traits.
WILL AWARD 90 points!!
Answer:
Explanation:
theres nothing here but thanks for the points
??????
I dont see anything.
How are plant and animal cells different in size and shape
Answer:
plant cells are rectangular while animal cells are spherical
Explanation:
plant cells are mostly rectangular due to the cell walls morphing them into that shape while animal cells are more sphere like in order to save space
Hope this helped
Explain whether continuing to increase light intensity will increase the rate of photosynthesis. Please help!
Answer:
So in the case of a plant, a higher light intensity means more packets of light called “photons” are hitting the leaves. As you rise from low light intensity to higher light intensity, the rate of photosynthesis will increase because there is more light available to drive the reactions of photosynthesis.
Explanation:
If you continue to increase the intensity of light that a plant receives, what happens? The rate of photosynthesis increases with light intensity. The rate of photosynthesis decreases with light intensity. The rate of photosynthesis increases and then levels off.As light intensity increases (distance between lamp and plant decreases) the volume of oxygen (or the rate of bubble production) increases. This indicates that the rate of photosynthesis increases with light intensity.
PLZ NEED HELP ASAP!!
Click to review the online content. Then answer the question(s) below, using complete sentences. Scroll down to view additional questions.
Online Content: Site 1
What arctic animals will climate change affect? How will it affect these animals? (Site 1)
Answer:
The main arctic animals which will be affected by climate change are polar bears, seal, seabirds, and walrus.
Explanation:
Answer:
The main arctic animals which will be affected by climate change are polar bears, seal, seabirds, and walrus. It will affect these animals because they depend on ice for hunting, hiding, and breeding places.
Explanation:
I put this for egde and got a 100.
what system sends "electrical" signals around your body
Answer:
The nervous system is a complex network of nervous tissue that carries electrical messages throughout the body. It includes the brain and spinal cord.
What are two ways that variation can be described?
Answer:
varyatio of somthing and multiple varitons of it
Explanation:
The two ways that variation can be described are meiosis and evolution, because in the meiosis process, sexual reproduction occurs, and in the evolution process, changes in animals are seen and variation is observed.
What is variation?When sexual reproduction occurs, there is variation seen because in meiosis genes cross over and recombinate, resulting in variation in offspring from their parents, but it is absent in asexual reproduction that is caused by mitosis or binary fission because here there is no variation in the offspring and the parents. The process of evolution introduces variation because, along with environmental factors, the animal genes are influenced too.
Hence, the two ways that variation can be described are meiosis and evolution, because in the meiosis process, sexual reproduction occurs, and in the evolution process, changes in animals are seen and variation is observed.
Learn more about the variation here.
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Whoever awnsers gets Brainliest!!! What causes a star to shine brightly?
the color that is produced
the energy that is released
the amount of gravity that is present
the types of elements that are present
Answer:
the energy that is released
Explanation:
heat gives off light, and the heat comes from the reactions in the star that produce the energy
Answer:
The energy that is released.
Explanation:
The source of most stars' energy is nuclear reactions going on deep inside the stars. In most stars, like our sun, hydrogen is being converted into helium which makes the stars shine brightly.
according to_ theroy life is orginated as lifeless matter
options
a)biogenesis b) abiogenesis
c)cosmie. d)special creation
B) abiogenesis
Abiogenesis is one of the modern evolutionary theories on how life originated. It used to refer to the now-discredited hypothesis of spontaneous generation. It was once believed that complex living organisms such as mice, maggots, etc. could arise spontaneously from nonliving matter.
After an ionic bond is formed, what is the charge of the atom that gained an electron?
Answer: Negative
Explanation:
This is called an anion. Whenever an atom gains a electron, it becomes negative. When an atom loses an electron, it becomes postitive. Positive atoms are called cation.
After an ionic bond is formed, the charge of the atom that gained an electron will be negative.
What is an ionic bond?An ionic bond, also widely recognized as an electrovalent bond, is a category of interconnection established by the electrostatic attraction of ions with opposing charge in a chemical substance.
When the valence (outermost) electrons of one atom are permanently transferred to another atom, a bond is formed.
An ionic bond is formed between a metal and a nonmetal, whereas a covalent bond is formed between two nonmetals.
An ionic bond is formed by the complete transfer of electrons from one atom to another. When an atom loses one or more electrons, it becomes a cation, or positively charged ion.
When an atom gains one or more electrons, it becomes an anion, a negatively charged ion.
Thus, the atom is negatively charged as it gained electron.
For more details regarding ionic bond, visit:
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Complete the following table comparing and contrasting diploid and haploid cells.
Diploid
Haploid
Description
Homologous chromosome pairs
Designated N
Designated 2N
Has one member of each
homologous chromosome pair
Includes gametes
Includes somatic cells
Heart and liver cells
Sperm and Egg cells
Answer:
Please find the description and it's pair below:
Homologous chromosome pairs - DIPLOID
Designated N - HAPLOID
Designated 2N - DIPLOID
Has one member of each
homologous chromosome pair - HAPLOID
Includes gametes - HAPLOID
Includes somatic cells - DIPLOID
Heart and liver cells - DIPLOID
Sperm and Egg cells - HAPLOID
Explanation:
1. Diploid organism is an organism with two sets of chromosomes, with each set contributed by each male and female parent. Chromosomes from the male parent is found side by side with chromosomes from the female parent to form HOMOLOGOUS CHROMOSOME PAIR in a diploid organism. Diploidy is denoted by 2N, where N represents number of one set of chromosomes. Diploid cells include somatic or body cells such as heart and liver cells.
2. Haploid organisms are organisms that contain one set of chromosome, formed as a result of meiotic division of diploid cells. Hence, a haploid cell contains one member of each homologous chromosome pair. Haploidy is denoted by N, meaning number of one set of chromosome. Haploid cells include gametes or sex cells such as sperm and egg cells.
what does a endoplasmic reticulum do?
Answer: nothing
Explanation:
Answer: produce proteins for the rest of the cell to function
Explanation:
The endoplasmic reticulum can either be smooth or rough, and in general its function is to produce proteins for the rest of the cell to function. The rough endoplasmic reticulum has on it ribosomes, which are small, round organelles whose function it is to make those proteins.
How did the Jesuits spread the Catholic faith among the masses?
In Catholic Religion, Jesuits were the religious community called the Society of Jesus. ... They were able to win faith among people by spreading the teaching of Jesus and caring for the sufferings. Jesuits (Missionaries) also established Catholics school in many regions which focused on the teaching of Jesus
Explanation:
Answer:
In Catholic Religion, Jesuits were the religious community called the Society of Jesus. ... They were able to win faith among people by spreading the teaching of Jesus and caring for the sufferings. Jesuits (Missionaries) also established Catholics school in many regions which focused on the teaching of Jesus.
Explanation:
Use fertile in a sentence.
Answer:
there is an abundance of fertile soil
climate and fertile soil are crucial for plant growth
Eugene describes the physical property of a material as “sweet and floral.” What physical property of the material is Eugene most likely observing?
boiling point
shape
hardness
odor
Answer:
Odor
Explanation:
When you smell something, you are smelling it's odor. The words "sweet" and "floral" are most likely referring to the odor of a flower.
Some differentiated cells become senescent almost immediately, leaving the cell cycle and undergoing terminal differentiation. Other cells have a high need to proliferate in order to grow and repair the organ or tissue, so they do not enter senescence for a long period of time. Which cell type would be most likely to put off senescence and terminal differentiation so it could continue to replicate in order to grow and repair?
brain cells
lung cells
skin cells
heart cells
Answer:
skin cells.
Explanation:
for connexus friends
The cell that will most likely put off senescence and terminal differentiation so it could continue to replicate in order to grow and repair would be skin cells.
The skin is a tissue whose cells are constantly dividing to replace old, damaged, or worn-out cells.
Damaged, and worn-out cells are frequent on skin tissues because they directly interact with the environment, exposing them to mechanical, chemical, and other forms of damages.
Thus, the skin cells cannot afford to go into senescence or terminal differentiation due to the fact that they need to constantly divide and replace damaged ones.
More on mitosis and tissue repair can be found here: https://brainly.com/question/15690556?referrer=searchResults
Which type of energy transformation is controlled by chloroplasts?
Life: Scientists have found signatures of life in
rocks from 3.5 billion years ago. That means life
existed in a world with very low oxygen! What
is the evidence?
Answer:The evidence to this is because oxygen, is produced by bacteria at that time! If they do That why would they need to use any oxygen? If i didn't get the answer you were asking then well sorry :/
you don’t need to answer 11 because i need to watch a video for it. but plssss
20 points:)
Answer: 7. Adenosine triphosphate 10. Endocytosis is the cellular process in which substances are brought into the cell.
Explanation: Sorry, I could only answer 7 and 10. I’m more of a person who answers straight-forward questions. I don’t really like fill in the blanks.