BIOLOGY HIGH SCHOOL

Which is the correct sequence of events during embryonic development?(A) cleavage — differentiation — fertilization — gastrulation
(B) differentiation — fertilization — gastrulation — cleavage
(C) fertilization — cleavage — gastrulation — differentiation
(D) fertilization — differentiation — cleavage — gastrulation
(E) fertilization — gastrulation — differentiation — cleavage

Answers

Answer 1
Answer: The answer is A. cleavage, differentiation, fertilization, gastralution
Answer 2
Answer:

Answer:C

Explanation:

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One of the newest applications of cell technology is called cybrid embryos. This process involves replacing the nuclear material of an animal cell with human nuclear material. How might this process affect public policies about research by using stem cells?

A cell membrane is very specific about what it allows across. How does this help the cell?A. The cell works better when it contains fewer protein
B. It helps the cell absorb as many different molecules as possible
C. It is better for the cell if most molecules are prevented from entering
D. Transports protein only allow enzymes to pass through the membrane

Answers

It is better for the cell if most molecules are prevented from entering.

  • The cell membrane is called semi permeable so it allow selective substances to pass through it.

What is cell membrane?

  • The cell membrane, also called the plasma membrane, is found in all cells and separates the interior of the cell from the outside environment.
  • The cell membrane consists of a lipid bilayer that is semipermeable.
  • The cell membrane regulates the transport of materials entering and exiting the cell.

What are the functions of cell membrane?

The cell membrane, therefore, has two functions:

  • To be a barrier keeping the constituents of the cell in and unwanted substances out.
  • To be a gate allowing transport into the cell of essential nutrients and movement from the cell of waste products.

To know more about cell membrane here

brainly.com/question/13524386

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C)It is better for the cell if most molecules are prevented from entering
This is a theory that is known for this question. 

Select all the correct answers.In which three ways can we use biomass as a source of energy?

by extracting hydrogen from it
by converting it into liquid fuels
by making suitable bacteria act on it
by burning it directly
by mixing it with petroleum-based fuels

Answers

Answer:

The correct ways to use biomass as a source of energy are:

By converting it into liquid fuels: Biomass can be processed into liquid biofuels like biodiesel and bioethanol, which can be used as alternatives to fossil fuels.

By burning it directly: Biomass can be burned directly as a source of heat and energy. This is often done in the form of wood, agricultural residues, or dedicated energy crops.

By making suitable bacteria act on it: Biomass can be used to produce biogas through a process called anaerobic digestion, where bacteria break down organic materials to generate methane, a valuable energy source.

Explanation:

Why is testing ideas an important part of all science and engineering practices

Answers

Scientists and engineers actively seek evidence to test their ideas — even if the test is difficult. The reason behind is the importance of asking questions based on observations to find more information about the natural effects and proposals. From there, it is ought to determine expected results based on testing, evidence resulting from that experiment will allow testers to find out the solution they are looking for.

What are three terms used to describe organisms such as cows

Answers

Herbivores and livestock. Herbivores because the eat grass and they are considered live stock.

caterpillars and grasshoppers and beetles

In what ways are herbivores and carnivores alike

Answers

I just took the quick check and the answers is B "They both obtain energy by consuming other organisms"
they still limited for what they can actually eat

This type of reproduction produces variety in species.Sexual reproduction
Asexual reproduction
Mitosis
Cloning

Answers

Sexual Reproductions (i.e. Meiosis)


In Meiosis you have a crossing over stage in prophase I, which will result in the exchange of genetic material + the random assortment at metaphase 1 and 2 increases the variety.

There is approximately 10 billion different ways that a child can look from a mixture of the paternal and maternal genes due to all the random events that happen in meiosis/ sexual reproduction.

Answer:Which process produces the most variation within a species?

A. Asexual Reproduction

B. Sexual Reproduction

C. Mitosis

D. Cloning

Explanation:

B/Sexual reproduction
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